BGM121/BGM123 Blue Gecko Bluetooth ®
SiP Module Data Sheet
The BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module family is targeted for applications where ultra-small size, reliable high performance RF, low-power consumption
and easy application development are key requirements.
At 6.5 x 6.5 x 1.4 mm the BGM121/BGM123 module fits applications where size is a constraint. BGM121/BGM123 also integrates a high performance, ultra robust antenna,
which requires minimal PCB, plastic and metal clearance. The total PCB area required
by BGM121/BGM123 is only 51 mm2. The BGM121/BGM123 has Bluetooth, CE, partial
FCC, ISED Canada and Japan certifications.
KEY FEATURES
• Bluetooth 4.2 low energy compliant
• Integrated antenna or RF pin
• TX power up to +8 dBm
• RX sensitivity: -90 dBm
• Range: up to 200 meters
• 32-bit ARM® Cortex®-M4 core at 38.4
MHz
Based on the EFR32BG1 SoC, the BGM121/BGM123 also integrates a Bluetooth 4.2
compliant Bluetooth Low Energy and it can also run end-user applications on-board or
alternatively used as a network co-processor over one of the host interfaces.
• Flash memory: 256 kB
BGM121/BGM123 SIP modules can be used in a wide variety of applications:
• Autonomous Hardware Crypto Accelerator
and Random Number Generator
•
•
•
•
•
•
Wearables
IoT end devices and gateways
Health, sports and wellness devices
Industrial, home and building automation
Smart phone, tablet and PC accessories
Beacons
• Integrated DC-DC Converter
• Onboard Bluetooth stack
Core / Memory
Clock Management
Crystals
38.4MHz
ARM Cortex M4 processor
with DSP extensions and FPU
Memory
Protection Unit
32.768kHz
Flash Program
Memory
RAM Memory
Debug Interface
• RAM: 32 kB
DMA Controller
Energy Management
Other
High Frequency
Crystal Oscillator
High Frequency
RC Oscillator
Voltage
Regulator
Voltage Monitor
CRYPTO
Low Frequency
RC Oscillator
Auxiliary
High Frequency
RC Oscillator
DC-DC
Converter
Power-On Reset
CRC
Low Frequency
Crystal Oscillator
Ultra Low
Frequency
RC Oscillator
Brown-Out
Detector
32-bit bus
Peripheral Reflex System
Chip antenna
FRC
DEMOD
LNA
IFADC
PGA
I/O Ports
Timers and Triggers
Analog I/F
USART
External
Interrupts
Timer/Counter
Protocol Timer
ADC
Low Energy
UART
General Purpose
I/O
Low Energy Timer
Watchdog Timer
Analog
Comparator
PA
Q
Frequency
Synthesizer
AGC
I2C
Pin Reset
Pulse Counter
RTCC
IDAC
MOD
RAC
BALUN
I
Serial Interfaces
RF Frontend
CRC
Matching
BUFC
Radio Transceiver
Antenna
Cryotimer
Pin Wakeup
Lowest power mode with peripheral operational:
EM0—Active
EM1—Sleep
silabs.com | Building a more connected world.
EM2—Deep Sleep
EM3—Stop
Copyright © 2022 by Silicon Laboratories
EM4—Hibernate
EM4—Shutoff
Rev. 1.5
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Feature List
1. Feature List
The BGM121/BGM123 highlighted features are listed below.
• Low Power Wireless System-on-Chip.
• High Performance 32-bit 38.4 MHz ARM Cortex®-M4 with
DSP instruction and floating-point unit for efficient signal
processing
• 256 kB flash program memory
• 32 kB RAM data memory
• 2.4 GHz radio operation
• TX power up to +8 dBm
• Low Energy Consumption
• 8.7 mA RX current at 2.4 GHz
• 8.2 mA TX current @ 0 dBm output power at 2.4 GHz
• 63 μA/MHz in Active Mode (EM0)
• 2.5 μA EM2 DeepSleep current (full RAM retention and
RTCC running from LFXO)
• 2.1 μA EM3 Stop current (State/RAM retention)
• High Receiver Performance
• -90 dBm sensitivity @ 1 Mbit/s GFSK (2.4 GHz)
• Supported Protocols
• Bluetooth® Low Energy
• Support for Internet Security
• General Purpose CRC
• Random Number Generator
• Hardware Cryptographic Acceleration for AES 128/256,
SHA-1, SHA-2 (SHA-224 and SHA-256) and ECC
silabs.com | Building a more connected world.
• Wide Selection of MCU peripherals
• 12-bit 1 Msps SAR Analog to Digital Converter (ADC)
• 2 × Analog Comparator (ACMP)
• Digital to Analog Current Converter (IDAC)
• 32 pins connected to analog channels (APORT) shared between Analog Comparators, ADC, and IDAC
• 30 General Purpose I/O pins with output state retention and
asynchronous interrupts
• 8 Channel DMA Controller
• 12 Channel Peripheral Reflex System (PRS)
• 2×16-bit Timer/Counter
• 3 + 4 Compare/Capture/PWM channels
• 32-bit Real Time Counter and Calendar
• 16-bit Low Energy Timer for waveform generation
• 32-bit Ultra Low Energy Timer/Counter for periodic wake-up
from any Energy Mode
• 16-bit Pulse Counter with asynchronous operation
• Watchdog Timer with dedicated RC oscillator @ 50 nA
• 2×Universal Synchronous/Asynchronous Receiver/Transmitter (UART/SPI/SmartCard (ISO 7816)/IrDA/I2S)
• Low Energy UART (LEUART™)
• I2C interface with SMBus support and address recognition
in EM3 Stop
• Wide Operating Range
• 1.85 V to 3.8 V single power supply
• 2.4 V to 3.8 V when using DC-DC
• Integrated DC-DC
• -40 °C to +85 °C
• Dimensions
• 6.5 x 6.5 x 1.4 mm
Rev. 1.5 | 2
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Ordering Information
2. Ordering Information
Table 2.1. Ordering Information
Ordering Code
Protocol Stack
Frequency
Band
Max TX
Power
(dBm)
BGM123A256V2R
Bluetooth ® Low Energy
2.4 GHz
+2
BGM123A256V2
Bluetooth ® Low Energy
2.4 GHz
BGM123N256V2R
Bluetooth ® Low Energy
BGM123N256V2
Antenna
Flash
(KB)
RAM
(KB)
GPIO
Package
Built-in
256
32
30
1000 pcs
reel
+2
Built-in
256
32
30
260 pcs
tray
2.4 GHz
+2
RF pin
256
32
30
1000 pcs
reel
Bluetooth ® Low Energy
2.4 GHz
+2
RF pin
256
32
30
260 pcs
tray
BGM121A256V2R
Bluetooth ® Low Energy
2.4 GHz
+8
Built-in
256
32
30
1000 pcs
reel
BGM121A256V2
Bluetooth ® Low Energy
2.4 GHz
+8
Built-in
256
32
30
260 pcs
tray
BGM121N256V2R
Bluetooth ® Low Energy
2.4 GHz
+8
RF pin
256
32
30
1000 pcs
reel
BGM121N256V2
Bluetooth ® Low Energy
2.4 GHz
+8
RF pin
256
32
30
260 pcs
tray
SLWSTK6101C1
SLWRB4302A2
Note:
1. Blue Gecko Bluetooth Module Wireless Starter Kit (WSTK) with BGM121A256 radio board (SLWRB4302A) and BGM111A256
radio board (SLWRB4300A), expansion board and accessories.
2. BGM121A256 Radio Board
silabs.com | Building a more connected world.
Rev. 1.5 | 3
Table of Contents
1. Feature List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Introduction .
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3.3 Power . . . . . . . . . . .
3.3.1 Energy Management Unit (EMU)
3.3.2 DC-DC Converter . . . . .
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3.4 General Purpose Input/Output (GPIO) .
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. 9
3.5 Clocking . . . . . . . . . .
3.5.1 Clock Management Unit (CMU) .
3.5.2 Internal Oscillators . . . . .
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.10
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.11
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3.7 Communications and Other Digital Peripherals . . . . . . . . . .
3.7.1 Universal Synchronous/Asynchronous Receiver/Transmitter (USART) .
3.7.2 Low Energy Universal Asynchronous Receiver/Transmitter (LEUART) .
3.7.3 Inter-Integrated Circuit Interface (I2C) . . . . . . . . . . . .
3.7.4 Peripheral Reflex System (PRS) . . . . . . . . . . . . .
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3.8 Security Features . . . . . . . . . . . . . . .
3.8.1 GPCRC (General Purpose Cyclic Redundancy Check) .
3.8.2 Crypto Accelerator (CRYPTO) . . . . . . . . .
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.11
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3.9 Analog. . . . . . . . . . . . . .
3.9.1 Analog Port (APORT) . . . . . . .
3.9.2 Analog Comparator (ACMP) . . . . .
3.9.3 Analog to Digital Converter (ADC) . . .
3.9.4 Digital to Analog Current Converter (IDAC)
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.12
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3.10 Reset Management Unit (RMU) .
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.12
3.11 Core and Memory . . . . . . . . . . . .
3.11.1 Processor Core . . . . . . . . . . . .
3.11.2 Memory System Controller (MSC) . . . . .
3.11.3 Linked Direct Memory Access Controller (LDMA)
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3.12 Memory Map .
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.14
3.2 Radio . . . . . . . . .
3.2.1 Antenna Interface . . .
3.2.2 Packet and State Trace .
3.2.3 Random Number Generator
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3.6 Counters/Timers and PWM . . . . . . . . .
3.6.1 Timer/Counter (TIMER) . . . . . . . .
3.6.2 Real Time Counter and Calendar (RTCC) . .
3.6.3 Low Energy Timer (LETIMER) . . . . . .
3.6.4 Ultra Low Power Wake-up Timer (CRYOTIMER)
3.6.5 Pulse Counter (PCNT) . . . . . . . . .
3.6.6 Watchdog Timer (WDOG) . . . . . . . .
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silabs.com | Building a more connected world.
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Rev. 1.5 | 4
3.13 Configuration Summary
4. Electrical Specifications
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5. Typical Connection Diagrams
6. Layout Guidelines
6.1 Layout Guidelines .
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. . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.1 Electrical Characteristics . . . . . .
4.1.1 Absolute Maximum Ratings . . . .
4.1.2 Operating Conditions . . . . . .
4.1.3 DC-DC Converter . . . . . . .
4.1.4 Current Consumption . . . . . .
4.1.5 Wake up times . . . . . . . .
4.1.6 Brown Out Detector . . . . . . .
4.1.7 Frequency Synthesizer Characteristics
4.1.8 2.4 GHz RF Transceiver Characteristics
4.1.9 Oscillators . . . . . . . . . .
4.1.10 Flash Memory Characteristics . . .
4.1.11 GPIO . . . . . . . . . . .
4.1.12 VMON . . . . . . . . . . .
4.1.13 ADC . . . . . . . . . . .
4.1.14 IDAC . . . . . . . . . . .
4.1.15 Analog Comparator (ACMP) . . .
4.1.16 I2C . . . . . . . . . . . .
4.1.17 USART SPI . . . . . . . . .
5.1 Typical Connections .
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6.2 Effect of PCB Width .
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.48
6.3 Effect of Plastic and Metal Materials .
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.48
6.4 Effect of Human Body
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6.5 2D Radiation Pattern Plots .
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.49
7. Pin Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
7.1 Pin Definitions . . .
7.1.1 GPIO Overview .
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7.2 Alternate Functionality Pinout .
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7.3 Analog Port (APORT).
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.71
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8. Package Specifications
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8.1 BGM121/BGM123 Package Dimensions .
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8.2 BGM121/BGM123 Package Marking .
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.77
8.3 BGM121/BGM123 Recommended PCB Land Pattern
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.78
9. Tape and Reel Specifications
9.1 Tape and Reel Packaging .
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Rev. 1.5 | 5
9.3 Orientation and Tape Feed .
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10. Soldering Recommendations . . . . . . . . . . . . . . . . . . . . . . . . 85
10.1 Soldering Recommendations.
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11. Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
11.1 Bluetooth .
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12. Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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silabs.com | Building a more connected world.
Rev. 1.5 | 6
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
System Overview
3. System Overview
3.1 Introduction
The BGM121/BGM123 product family combines an energy-friendly MCU with a highly integrated radio transceiver. The devices are well
suited for any battery operated application, as well as other system requiring high performance and low-energy consumption. This section gives a short introduction to the full radio and MCU system. A detailed functional description can be found in the EFR32BG1 Wireless Gecko Bluetooth® Low Energy SoC Family Data Sheet (see general sections and QFN48 2.4 GHz SoC related sections).
A detailed block diagram of the EFR32BG SoC is shown in the figure below which is used in the BGM121/BGM123 Bluetooth Low
Energy module.
Radio Transciever
IFADC
PGA
FRC
RF Frontend
I
BUFC
Port I/O Configuration
DEMOD
Digital Peripherals
LETIMER
LNA
PA
Frequency
Synthesizer
Q
AGC
MOD
RAC
CRYOTIMER
PCNT
RTC / RTCC
Energy Management
PAVDD
RFVDD
IOVDD
Up to 256 KB ISP Flash
Program Memory
LEUART
Memory Protection Unit
Floating Point Unit
bypass
DC-DC
Converter
VSS
VREGVSS
RFVSS
PAVSS
RESETn
A A
H P
B B
CRC
Analog Peripherals
Serial Wire Debug /
Programming
DECOUPLE
Internal
Reference
Watchdog
Timer
Brown Out /
Power-On
Reset
VDD
12-bit ADC
ULFRCO
AUXHFRCO
LFXTAL_P / N
HFXTAL_N
Port C
Drivers
PCn
Port D
Drivers
PDn
Port F
Drivers
PFn
VDD
Temp
Sensor
LFRCO
HFRCO
HFXTAL_P
PBn
IDAC
VREF
Clock Management
Reset
Management
Unit
Port B
Drivers
I2C
CRYPTO
DMA Controller
Voltage
Regulator
PAn
Port
Mapper
Input MUX
AVDD
VREGSW
USART
Up to 32 KB RAM
Voltage
Monitor
DVDD
VREGVDD
ARM Cortex-M4 Core
Port A
Drivers
APORT
BALUN
CRC
2G4RF_IOP
2G4RF_ION
IOVDD
TIMER
LFXO
+
Analog Comparator
HFXO
Figure 3.1. Detailed EFR32BG1 Block Diagram
3.2 Radio
The BGM121/BGM123 features a radio transceiver supporting Bluetooth® low energy protocol.
3.2.1 Antenna Interface
BGM121/BGM123 has a built in 2.4GHz ceramic chip antenna or 50 ohm RF pin.
Table 3.1. Antenna Efficiency and Peak Gain
Parameter
With optimal layout Note
Efficiency
-1 to -2 dB
Peak gain
1 dBi
silabs.com | Building a more connected world.
Efficiency and peak gain depend on the application PCB layout
and mechanical design and the used antenna.
Rev. 1.5 | 7
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
System Overview
3.2.2 Packet and State Trace
The BGM121/BGM123 Frame Controller has a packet and state trace unit that provides valuable information during the development
phase. It features:
• Non-intrusive trace of transmit data, receive data and state information
• Data observability on a single-pin UART data output, or on a two-pin SPI data output
• Configurable data output bitrate / baudrate
• Multiplexed transmitted data, received data and state / meta information in a single serial data stream
3.2.3 Random Number Generator
The Frame Controller (FRC) implements a random number generator that uses entropy gathered from noise in the RF receive chain.
The data is suitable for use in cryptographic applications.
Output from the random number generator can be used either directly or as a seed or entropy source for software-based random number generator algorithms such as Fortuna.
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Rev. 1.5 | 8
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
System Overview
3.3 Power
The BGM121/BGM123 has an Energy Management Unit (EMU) and efficient integrated regulators to generate internal supply voltages.
Only a single external supply voltage is required, from which all internal voltages are created. An integrated dc-dc buck regulator is
utilized to further reduce the current consumption.
Figure 3.2. Power Supply Configuration
3.3.1 Energy Management Unit (EMU)
The Energy Management Unit manages transitions of energy modes in the device. Each energy mode defines which peripherals and
features are available and the amount of current the device consumes. The EMU can also be used to turn off the power to unused RAM
blocks, and it contains control registers for the dc-dc regulator and the Voltage Monitor (VMON). The VMON is used to monitor multiple
supply voltages. It has multiple channels which can be programmed individually by the user to determine if a sensed supply has fallen
below a chosen threshold.
3.3.2 DC-DC Converter
The DC-DC buck converter covers a wide range of load currents and provides up to 90% efficiency in energy modes EM0, EM1, EM2
and EM3. Patented RF noise mitigation allows operation of the DC-DC converter without degrading sensitivity of radio components.
Protection features include programmable current limiting, short-circuit protection, and dead-time protection. The DC-DC converter may
also enter bypass mode when the input voltage is too low for efficient operation. In bypass mode, the DC-DC input supply is internally
connected directly to its output through a low resistance switch. Bypass mode also supports in-rush current limiting to prevent input
supply voltage droops due to excessive output current transients.
3.4 General Purpose Input/Output (GPIO)
BGM121/BGM123 has up to 30 General Purpose Input/Output pins. Each GPIO pin can be individually configured as either an output
or input. More advanced configurations including open-drain, open-source, and glitch-filtering can be configured for each individual
GPIO pin. The GPIO pins can be overridden by peripheral connections, like SPI communication. Each peripheral connection can be
routed to several GPIO pins on the device. The input value of a GPIO pin can be routed through the Peripheral Reflex System to other
peripherals. The GPIO subsystem supports asynchronous external pin interrupts.
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Rev. 1.5 | 9
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
System Overview
3.5 Clocking
3.5.1 Clock Management Unit (CMU)
The Clock Management Unit controls oscillators and clocks in the BGM121/BGM123. Individual enabling and disabling of clocks to all
peripheral modules is perfomed by the CMU. The CMU also controls enabling and configuration of the oscillators. A high degree of
flexibility allows software to optimize energy consumption in any specific application by minimizing power dissipation in unused peripherals and oscillators.
3.5.2 Internal Oscillators
The BGM121/BGM123 fully integrates two crystal oscillators and four RC oscillators, listed below.
• A 38.4MHz high frequency crystal oscillator (HFXO) provides a precise timing reference for the MCU and radio.
• A 32.768 kHz crystal oscillator (LFXO) provides an accurate timing reference for low energy modes.
• An integrated high frequency RC oscillator (HFRCO) is available for the MCU system, when crystal accuracy is not required. The
HFRCO employs fast startup at minimal energy consumption combined with a wide frequency range.
• An integrated auxilliary high frequency RC oscillator (AUXHFRCO) is available for timing the general-purpose ADC and the Serial
Wire debug port with a wide frequency range.
• An integrated low frequency 32.768 kHz RC oscillator (LFRCO) can be used as a timing reference in low energy modes, when crystal accuracy is not required.
• An integrated ultra-low frequency 1 kHz RC oscillator (ULFRCO) is available to provide a timing reference at the lowest energy consumption in low energy modes.
3.6 Counters/Timers and PWM
3.6.1 Timer/Counter (TIMER)
TIMER peripherals keep track of timing, count events, generate PWM outputs and trigger timed actions in other peripherals through the
PRS system. The core of each TIMER is a 16-bit counter with up to 4 compare/capture channels. Each channel is configurable in one
of three modes. In capture mode, the counter state is stored in a buffer at a selected input event. In compare mode, the channel output
reflects the comparison of the counter to a programmed threshold value. In PWM mode, the TIMER supports generation of pulse-width
modulation (PWM) outputs of arbitrary waveforms defined by the sequence of values written to the compare registers, with optional
dead-time insertion available in timer unit TIMER_0 only.
3.6.2 Real Time Counter and Calendar (RTCC)
The Real Time Counter and Calendar (RTCC) is a 32-bit counter providing timekeeping in all energy modes. The RTCC includes a
Binary Coded Decimal (BCD) calendar mode for easy time and date keeping. The RTCC can be clocked by any of the on-board oscillators with the exception of the AUXHFRCO, and it is capable of providing system wake-up at user defined instances. When receiving
frames, the RTCC value can be used for timestamping. The RTCC includes 128 bytes of general purpose data retention, allowing easy
and convenient data storage in all energy modes.
3.6.3 Low Energy Timer (LETIMER)
The unique LETIMER is a 16-bit timer that is available in energy mode EM0 Active, EM1 Sleep, EM2 Deep Sleep, and EM3 Stop. This
allows it to be used for timing and output generation when most of the device is powered down, allowing simple tasks to be performed
while the power consumption of the system is kept at an absolute minimum. The LETIMER can be used to output a variety of waveforms with minimal software intervention. The LETIMER is connected to the Real Time Counter and Calendar (RTCC), and can be configured to start counting on compare matches from the RTCC.
3.6.4 Ultra Low Power Wake-up Timer (CRYOTIMER)
The CRYOTIMER is a 32-bit counter that is capable of running in all energy modes. It can be clocked by either the 32.768 kHz crystal
oscillator (LFXO), the 32.768 kHz RC oscillator (LFRCO), or the 1 kHz RC oscillator (ULFRCO). It can provide periodic Wakeup events
and PRS signals which can be used to wake up peripherals from any energy mode. The CRYOTIMER provides a wide range of interrupt periods, facilitating flexible ultra-low energy operation.
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Rev. 1.5 | 10
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
System Overview
3.6.5 Pulse Counter (PCNT)
The Pulse Counter (PCNT) peripheral can be used for counting pulses on a single input or to decode quadrature encoded inputs. The
clock for PCNT is selectable from either an external source on pin PCTNn_S0IN or from an internal timing reference, selectable from
among any of the internal oscillators, except the AUXHFRCO. The module may operate in energy mode EM0 Active, EM1 Sleep, EM2
Deep Sleep, and EM3 Stop.
3.6.6 Watchdog Timer (WDOG)
The watchdog timer can act both as an independent watchdog or as a watchdog synchronous with the CPU clock. It has windowed
monitoring capabilities, and can generate a reset or different interrupts depending on the failure mode of the system. The watchdog can
also monitor autonomous systems driven by PRS.
3.7 Communications and Other Digital Peripherals
3.7.1 Universal Synchronous/Asynchronous Receiver/Transmitter (USART)
The Universal Synchronous/Asynchronous Receiver/Transmitter is a flexible serial I/O module. It supports full duplex asynchronous
UART communication with hardware flow control as well as RS-485, SPI, MicroWire and 3-wire. It can also interface with devices supporting:
• ISO7816 SmartCards
• IrDA
• I2S
3.7.2 Low Energy Universal Asynchronous Receiver/Transmitter (LEUART)
The unique LEUARTTM provides two-way UART communication on a strict power budget. Only a 32.768 kHz clock is needed to allow
UART communication up to 9600 baud. The LEUART includes all necessary hardware to make asynchronous serial communication
possible with a minimum of software intervention and energy consumption.
3.7.3 Inter-Integrated Circuit Interface (I2C)
The I2C module provides an interface between the MCU and a serial I2C bus. It is capable of acting as both a master and a slave and
supports multi-master buses. Standard-mode, fast-mode and fast-mode plus speeds are supported, allowing transmission rates from 10
kbit/s up to 1 Mbit/s. Slave arbitration and timeouts are also available, allowing implementation of an SMBus-compliant system. The
interface provided to software by the I2C module allows precise timing control of the transmission process and highly automated transfers. Automatic recognition of slave addresses is provided in active and low energy modes.
3.7.4 Peripheral Reflex System (PRS)
The Peripheral Reflex System provides a communication network between different peripheral modules without software involvement.
Peripheral modules producing Reflex signals are called producers. The PRS routes Reflex signals from producers to consumer peripherals which in turn perform actions in response. Edge triggers and other functionality can be applied by the PRS. The PRS allows peripheral to act autonomously without waking the MCU core, saving power.
3.8 Security Features
3.8.1 GPCRC (General Purpose Cyclic Redundancy Check)
The GPCRC module implements a Cyclic Redundancy Check (CRC) function. It supports both 32-bit and 16-bit polynomials. The supported 32-bit polynomial is 0x04C11DB7 (IEEE 802.3), while the 16-bit polynomial can be programmed to any value, depending on the
needs of the application.
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Rev. 1.5 | 11
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
System Overview
3.8.2 Crypto Accelerator (CRYPTO)
The Crypto Accelerator is a fast and energy-efficient autonomous hardware encryption and decryption accelerator. It supports AES encryption and decryption with 128- or 256-bit keys and ECC over both GF(P) and GF(2m), SHA-1 and SHA-2 (SHA-224 and SHA-256).
Supported modes of operation for AES include: ECB, CTR, CBC, PCBC, CFB, OFB, CBC-MAC, GMAC and CCM.
Supported ECC NIST recommended curves include P-192, P-224, P-256, K-163, K-233, B-163 and B-233.
The CRYPTO is tightly linked to the Radio Buffer Controller (BUFC) enabling fast and efficient autonomous cipher operations on data
buffer content. It allows fast processing of GCM (AES), ECC and SHA with little CPU intervention. CRYPTO also provides trigger signals for DMA read and write operations.
3.9 Analog
3.9.1 Analog Port (APORT)
The Analog Port (APORT) is an analog interconnect matrix allowing access to analog modules ADC, ACMP, and IDAC on a flexible
selection of pins. Each APORT bus consists of analog switches connected to a common wire. Since many clients can operate differentially, buses are grouped by X/Y pairs.
3.9.2 Analog Comparator (ACMP)
The Analog Comparator is used to compare the voltage of two analog inputs, with a digital output indicating which input voltage is higher. Inputs are selected from among internal references and external pins. The tradeoff between response time and current consumption
is configurable by software. Two 6-bit reference dividers allow for a wide range of internally-programmable reference sources. The
ACMP can also be used to monitor the supply voltage. An interrupt can be generated when the supply falls below or rises above the
programmable threshold.
3.9.3 Analog to Digital Converter (ADC)
The ADC is a Successive Approximation Register (SAR) architecture, with a resolution of up to 12 bits at up to 1 MSamples/s. The
output sample resolution is configurable and additional resolution is possible using integrated hardware for averaging over multiple
samples. The ADC includes integrated voltage references and an integrated temperature sensor. Inputs are selectable from a wide
range of sources, including pins configurable as either single-ended or differential.
3.9.4 Digital to Analog Current Converter (IDAC)
The Digital to Analog Current Converter can source or sink a configurable constant current. This current can be driven on an output pin
or routed to the selected ADC input pin for capacitive sensing. The current is programmable between 0.05 µA and 64 µA with several
ranges with various step sizes.
3.10 Reset Management Unit (RMU)
The RMU is responsible for handling reset of the BGM121/BGM123. A wide range of reset sources are available, including several
power supply monitors, pin reset, software controlled reset, core lockup reset and watchdog reset.
3.11 Core and Memory
3.11.1 Processor Core
The ARM Cortex-M4F processor includes a 32-bit RISC processor integrating the following features and tasks in the system:
• ARM Cortex-M4F RISC processor achieving 1.25 Dhrystone MIPS/MHz
• Memory Protection Unit (MPU) supporting up to 8 memory segments
• 256 KB flash program memory
• 32 KB RAM data memory
• Configuration and event handling of all modules
• 2-pin Serial-Wire debug interface
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Rev. 1.5 | 12
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
System Overview
3.11.2 Memory System Controller (MSC)
The Memory System Controller (MSC) is the program memory unit of the microcontroller. The flash memory is readable and writable
from both the Cortex-M and DMA. The flash memory is divided into two blocks; the main block and the information block. Program code
is normally written to the main block, whereas the information block is available for special user data and flash lock bits. There is also a
read-only page in the information block containing system and device calibration data. Read and write operations are supported in energy modes EM0 Active and EM1 Sleep.
3.11.3 Linked Direct Memory Access Controller (LDMA)
The Linked Direct Memory Access (LDMA) controller features 8 channels capable of performing memory operations independently of
software. This reduces both energy consumption and software workload. The LDMA allows operations to be linked together and staged, enabling sophisticated operations to be implemented.
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Rev. 1.5 | 13
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
System Overview
3.12 Memory Map
The BGM121/BGM123 memory map is shown in the figures below.
Figure 3.3. BGM121/BGM123 Memory Map — Core Peripherals and Code Space
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Rev. 1.5 | 14
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
System Overview
Figure 3.4. BGM121/BGM123 Memory Map — Peripherals
3.13 Configuration Summary
The features of the BGM121/BGM123 are a subset of the feature set described in the device reference manual. The table below describes device specific implementation of the features. Remaining modules support full configuration.
Table 3.2. Configuration Summary
Module
Configuration
Pin Connections
USART0
IrDA SmartCard
US0_TX, US0_RX, US0_CLK, US0_CS
USART1
IrDA I2S SmartCard
US1_TX, US1_RX, US1_CLK, US1_CS
TIMER0
with DTI
TIM0_CC[2:0], TIM0_CDTI[2:0]
TIMER1
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TIM1_CC[3:0]
Rev. 1.5 | 15
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4. Electrical Specifications
4.1 Electrical Characteristics
All electrical parameters in all tables are specified under the following conditions, unless stated otherwise:
• Typical values are based on TAMB=25 °C and VDD= 3.3 V, by production test and/or technology characterization.
• Radio performance numbers are measured in conducted mode, based on Silicon Laboratories reference designs using output power-specific external RF impedance-matching networks for interfacing to a 50 Ω antenna.
• Minimum and maximum values represent the worst conditions across supply voltage, process variation, and operating temperature,
unless stated otherwise.
Refer to Table 4.2 General Operating Conditions on page 17 for more details about operational supply and temperature limits.
4.1.1 Absolute Maximum Ratings
Stresses above those listed below may cause permanent damage to the device. This is a stress rating only and functional operation of
the devices at those or any other conditions above those indicated in the operation listings of this specification is not implied. Exposure
to maximum rating conditions for extended periods may affect device reliability. For more information on the available quality and reliability data, see the Quality and Reliability Monitor Report at http://www.silabs.com/support/quality/pages/default.aspx.
Table 4.1. Absolute Maximum Ratings
Parameter
Symbol
Storage temperature range
TSTG
Min
Typ
Max
Unit
-40
—
+85
°C
External main supply voltage VDDMAX
0
—
3.8
V
External main supply voltage VDDRAMPMAX
ramp rate
—
—
1
V / μs
3.8
V
External main supply voltage
with DC-DC in bypass mode
Voltage on any 5V tolerant
GPIO pin1
Test Condition
1.85
VDIGPIN
-0.3
—
Min of 5.25
and IOVDD
+2
V
-0.3
—
IOVDD+0.3
V
—
—
10
dBm
Total current into VDD power IVDDMAX
lines (source)
—
—
200
mA
Total current into VSS
ground lines (sink)
IVSSMAX
—
—
200
mA
Current per I/O pin (sink)
IIOMAX
—
—
50
mA
—
—
50
mA
—
—
200
mA
—
—
200
mA
—
—
0.3
V
Voltage on non-5V tolerant
GPIO pins
Max RF level at input
PRFMAX2G4
Current per I/O pin (source)
Current for all I/O pins (sink)
IIOALLMAX
Current for all I/O pins
(source)
Voltage difference between
AVDD and VREGVDD
ΔVDD
Note:
1. When a GPIO pin is routed to the analog module through the APORT, the maximum voltage = IOVDD.
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Rev. 1.5 | 16
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.2 Operating Conditions
The following subsections define the operating conditions for the module.
4.1.2.1 General Operating Conditions
Table 4.2. General Operating Conditions
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Operating temperature
range
TOP
Ambient temperature range
-40
25
85
°C
VDD Operating supply voltage 1
VVDD
DCDC in regulation
2.43
3.3
3.8
V
DCDC in bypass, 50mA load
1.85
3.3
3.8
V
VDD Current
IVDD
DCDC in bypass
—
—
200
mA
HFCLK frequency
fCORE
0 wait-states (MODE = WS0) 2
—
—
26
MHz
1 wait-states (MODE = WS1) 2
—
38.4
40
MHz
Note:
1. The minimum voltage required in bypass mode is calculated using RBYP from the DC-DC specification table. Requirements for
other loads can be calculated as VVDD_min+ILOAD * RBYP_max
2. In MSC_READCTRL register
3. The minimum voltage of 2.4 V for DCDC is specified at 100 mA
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Rev. 1.5 | 17
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.3 DC-DC Converter
Test conditions: VDCDC_I=3.3 V, VDCDC_O=1.8 V, IDCDC_LOAD=50 mA, Heavy Drive configuration, FDCDC_LN=7 MHz, unless otherwise
indicated.
Table 4.3. DC-DC Converter
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Input voltage range
VDCDC_I
Bypass mode, IDCDC_LOAD = 50
mA
1.85
—
VVREGVDD_
V
Low noise (LN) mode, 1.8 V output, IDCDC_LOAD = 100 mA, or
Low power (LP) mode, 1.8 V output, IDCDC_LOAD = 10 mA
2.4
Low noise (LN) mode, 1.8 V output, IDCDC_LOAD = 200 mA
2.6
Output voltage programmable range1
VDCDC_O
Regulation DC Accuracy
ACCDC
Regulation Window2
WINREG
MAX
—
VVREGVDD_
V
MAX
—
VVREGVDD_
V
MAX
1.8
—
VVREGVDD
V
Low noise (LN) mode, 1.8 V target
output
1.7
—
1.9
V
Low power (LP) mode,
LPCMPBIAS3 = 0, 1.8 V target
output, IDCDC_LOAD ≤ 75 μA
1.63
—
2.2
V
Low power (LP) mode,
LPCMPBIAS3 = 3, 1.8 V target
output, IDCDC_LOAD ≤ 10 mA
1.63
—
2.1
V
Steady-state output ripple
VR
Radio disabled.
—
3
—
mVpp
Output voltage under/overshoot
VOV
CCM Mode (LNFORCECCM3 =
1), Load changes between 0 mA
and 100 mA
—
—
150
mV
DCM Mode (LNFORCECCM3 =
0), Load changes between 0 mA
and 10 mA
—
—
150
mV
Overshoot during LP to LN
CCM/DCM mode transitions compared to DC level in LN mode
—
200
—
mV
Undershoot during BYP/LP to LN
CCM (LNFORCECCM3 = 1) mode
transitions compared to DC level
in LN mode
—
50
—
mV
Undershoot during BYP/LP to LN
DCM (LNFORCECCM3 = 0) mode
transitions compared to DC level
in LN mode
—
125
—
mV
DC line regulation
VREG
Input changes between
VVREGVDD_MAX and 2.4 V
—
0.1
—
%
DC load regulation
IREG
Load changes between 0 mA and
100 mA in CCM mode
—
0.1
—
%
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Rev. 1.5 | 18
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Note:
1. Due to internal dropout, the DC-DC output will never be able to reach its input voltage, VVREGVDD
2. LP mode controller is a hysteretic controller that maintains the output voltage within the specified limits
3. In EMU_DCDCMISCCTRL register
4. Drive levels are defined by configuration of the PFETCNT and NFETCNT registers. Light Drive: PFETCNT=NFETCNT=3; Medium Drive: PFETCNT=NFETCNT=7; Heavy Drive: PFETCNT=NFETCNT=15.
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Rev. 1.5 | 19
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.4 Current Consumption
4.1.4.1 Current Consumption 3.3 V (DC-DC in Bypass Mode)
Unless otherwise indicated, typical conditions are: VDD = 3.3 V. TOP = 25 °C. EMU_PWRCFG_PWRCG=NODCDC.
EMU_DCDCCTRL_DCDCMODE=BYPASS. Minimum and maximum values in this table represent the worst conditions across supply
voltage and process variation at TOP = 25 °C.
Table 4.4. Current Consumption 3.3V without DC/DC
Parameter
Symbol
Min
Typ
Max
Unit
38.4 MHz crystal, CPU running
while loop from flash1
—
130
—
μA/MHz
38 MHz HFRCO, CPU running
Prime from flash
—
88
—
μA/MHz
38 MHz HFRCO, CPU running
while loop from flash
—
100
105
μA/MHz
38 MHz HFRCO, CPU running
CoreMark from flash
—
112
—
μA/MHz
26 MHz HFRCO, CPU running
while loop from flash
—
102
106
μA/MHz
1 MHz HFRCO, CPU running
while loop from flash
—
222
350
μA/MHz
38.4 MHz crystal1
—
65
—
μA/MHz
38 MHz HFRCO
—
35
38
μA/MHz
26 MHz HFRCO
—
37
41
μA/MHz
1 MHz HFRCO
—
157
275
μA/MHz
Full RAM retention and RTCC
running from LFXO
—
3.3
—
μA
4 kB RAM retention and RTCC
running from LFRCO
—
3
6.3
μA
Current consumption in EM3 IEM3
Stop mode
Full RAM retention and CRYOTIMER running from ULFRCO
—
2.8
6
μA
Current consumption in
EM4H Hibernate mode
128 byte RAM retention, RTCC
running from LFXO
—
1.1
—
μA
128 byte RAM retention, CRYOTIMER running from ULFRCO
—
0.65
—
μA
128 byte RAM retention, no RTCC
—
0.65
1.3
μA
no RAM retention, no RTCC
—
0.04
0.20
μA
Current consumption in EM0 IACTIVE
Active mode with all peripherals disabled
Current consumption in EM1 IEM1
Sleep mode with all peripherals disabled
Current consumption in EM2 IEM2
Deep Sleep mode.
Current consumption in
EM4S Shutoff mode
IEM4
IEM4S
Test Condition
Note:
1. CMU_HFXOCTRL_LOWPOWER=0
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Rev. 1.5 | 20
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.4.2 Current Consumption 3.3 V using DC-DC Converter
Unless otherwise indicated, typical conditions are: VDD = 3.3V. TOP = 25 °C. Minimum and maximum values in this table represent the
worst conditions across supply voltage and process variation at TOP = 25 °C.
Table 4.5. Current Consumption 3.3V with DC-DC
Parameter
Symbol
Min
Typ
Max
Unit
38.4 MHz crystal, CPU running
while loop from flash2
—
88
—
μA/MHz
38 MHz HFRCO, CPU running
Prime from flash
—
63
—
μA/MHz
38 MHz HFRCO, CPU running
while loop from flash
—
71
—
μA/MHz
38 MHz HFRCO, CPU running
CoreMark from flash
—
78
—
μA/MHz
26 MHz HFRCO, CPU running
while loop from flash
—
76
—
μA/MHz
38.4 MHz crystal, CPU running
while loop from flash2
—
98
—
μA/MHz
38 MHz HFRCO, CPU running
Prime from flash
—
75
—
μA/MHz
38 MHz HFRCO, CPU running
while loop from flash
—
81
—
μA/MHz
38 MHz HFRCO, CPU running
CoreMark from flash
—
88
—
μA/MHz
26 MHz HFRCO, CPU running
while loop from flash
—
94
—
μA/MHz
38.4 MHz crystal2
—
49
—
μA/MHz
38 MHz HFRCO
—
32
—
μA/MHz
26 MHz HFRCO
—
38
—
μA/MHz
38.4 MHz crystal2
—
61
—
μA/MHz
38 MHz HFRCO
—
45
—
μA/MHz
26 MHz HFRCO
—
58
—
μA/MHz
Current consumption in EM2 IEM2
Deep Sleep mode. DCDC in
Low Power mode4.
Full RAM retention and RTCC
running from LFXO
—
2.5
—
μA
4 kB RAM retention and RTCC
running from LFRCO
—
2.2
—
μA
Current consumption in EM3 IEM3
Stop mode
Full RAM retention and CRYOTIMER running from ULFRCO
—
2.1
—
μA
Current consumption in
EM4H Hibernate mode
128 byte RAM retention, RTCC
running from LFXO
—
0.86
—
μA
128 byte RAM retention, CRYOTIMER running from ULFRCO
—
0.58
—
μA
128 byte RAM retention, no RTCC
—
0.58
—
μA
Current consumption in EM0 IACTIVE
Active mode with all peripherals disabled, DCDC in Low
Noise DCM mode1.
Current consumption in EM0
Active mode with all peripherals disabled, DCDC in Low
Noise CCM mode3.
Current consumption in EM1 IEM1
Sleep mode with all peripherals disabled, DCDC in Low
Noise DCM mode1.
Current consumption in EM1
Sleep mode with all peripherals disabled, DCDC in Low
Noise CCM mode3.
IEM4
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Test Condition
Rev. 1.5 | 21
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
Parameter
Symbol
Test Condition
Current consumption in
EM4S Shutoff mode
IEM4S
no RAM retention, no RTCC
Min
Typ
Max
Unit
—
0.04
—
μA
Note:
1. DCDC Low Noise DCM Mode = Light Drive (PFETCNT=NFETCNT=3), F=3.0 MHz (RCOBAND=0), ANASW=DVDD
2. CMU_HFXOCTRL_LOWPOWER=0
3. DCDC Low Noise CCM Mode = Light Drive (PFETCNT=NFETCNT=3), F=6.4 MHz (RCOBAND=4), ANASW=DVDD
4. DCDC Low Power Mode = Medium Drive (PFETCNT=NFETCNT=7), LPOSCDIV=1, LPBIAS=3, LPCILIMSEL=1, ANASW=DVDD
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Rev. 1.5 | 22
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.4.3 Current Consumption 1.85 V (DC-DC in Bypass Mode)
Unless otherwise indicated, typical conditions are: VDD = 1.85 V. TOP = 25 °C. DC-DC in bypass mode. Minimum and maximum values
in this table represent the worst conditions across supply voltage and process variation at TOP = 25 °C.
Table 4.6. Current Consumption 1.85V without DC/DC
Parameter
Symbol
Min
Typ
Max
Unit
38.4 MHz crystal, CPU running
while loop from flash1
—
131
—
μA/MHz
38 MHz HFRCO, CPU running
Prime from flash
—
88
—
μA/MHz
38 MHz HFRCO, CPU running
while loop from flash
—
100
—
μA/MHz
38 MHz HFRCO, CPU running
CoreMark from flash
—
112
—
μA/MHz
26 MHz HFRCO, CPU running
while loop from flash
—
102
—
μA/MHz
1 MHz HFRCO, CPU running
while loop from flash
—
220
—
μA/MHz
38.4 MHz crystal1
—
65
—
μA/MHz
38 MHz HFRCO
—
35
—
μA/MHz
26 MHz HFRCO
—
37
—
μA/MHz
1 MHz HFRCO
—
154
—
μA/MHz
Full RAM retention and RTCC
running from LFXO
—
3.2
—
μA
4 kB RAM retention and RTCC
running from LFRCO
—
2.8
—
μA
Current consumption in EM3 IEM3
Stop mode
Full RAM retention and CRYOTIMER running from ULFRCO
—
2.7
—
μA
Current consumption in
EM4H Hibernate mode
128 byte RAM retention, RTCC
running from LFXO
—
1
—
μA
128 byte RAM retention, CRYOTIMER running from ULFRCO
—
0.62
—
μA
128 byte RAM retention, no RTCC
—
0.62
—
μA
No RAM retention, no RTCC
—
0.02
—
μA
Current consumption in EM0 IACTIVE
Active mode with all peripherals disabled
Current consumption in EM1 IEM1
Sleep mode with all peripherals disabled
Current consumption in EM2 IEM2
Deep Sleep mode
Current consumption in
EM4S Shutoff mode
IEM4
IEM4S
Test Condition
Note:
1. CMU_HFXOCTRL_LOWPOWER=0
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Rev. 1.5 | 23
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.4.4 Current Consumption Using Radio
Unless otherwise indicated, typical conditions are: VDD = 3.3 V. TOP = 25 °C. DC-DC on. Minimum and maximum values in this table
represent the worst conditions across supply voltage and process variation at TOP = 25 °C.
Table 4.7. Current Consumption Using Radio 3.3 V with DC-DC
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Current consumption in receive mode, active packet
reception (MCU in EM1 @
38.4 MHz, peripheral clocks
disabled)
IRX
1 Mbit/s, 2GFSK, F = 2.4 GHz,
Radio clock prescaled by 4
—
9.0
—
mA
Current consumption in
transmit mode (MCU in EM1
@ 38.4 MHz, peripheral
clocks disabled)
ITX
F = 2.4 GHz, CW, 0 dBm output
power, Radio clock prescaled by 3
—
8.2
—
mA
F = 2.4 GHz, CW, 2 dBm output
power
—
16.5
—
mA
F = 2.4 GHz, CW, 8 dBm output
power
—
24.6
—
mA
Min
Typ
Max
Unit
4.1.5 Wake up times
Table 4.8. Wake up times
Parameter
Symbol
Test Condition
Wake up from EM2 Deep
Sleep
tEM2_WU
Code execution from flash
—
10.7
—
μs
Code execution from RAM
—
3
—
μs
Wakeup time from EM1
Sleep
tEM1_WU
Executing from flash
—
3
—
AHB
Clocks
Executing from RAM
—
3
—
AHB
Clocks
Executing from flash
—
10.7
—
μs
Executing from RAM
—
3
—
μs
Executing from flash
—
60
—
μs
—
290
—
μs
Wake up from EM3 Stop
tEM3_WU
Wake up from EM4H Hibernate1
tEM4H_WU
Wake up from EM4S Shutoff1
tEM4S_WU
Note:
1. Time from wakeup request until first instruction is executed. Wakeup results in device reset.
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Rev. 1.5 | 24
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.6 Brown Out Detector
For the table below, see Figure 3.2 Power Supply Configuration on page 9 on page 5 to see the relation between the modules external
VDD pin and internal voltage supplies. The module itself has only one external power supply input (VDD).
Table 4.9. Brown Out Detector
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
AVDD BOD threshold
VAVDDBOD
AVDD rising
—
—
1.85
V
AVDD falling
1.62
—
—
V
AVDD BOD hysteresis
VAVDDBOD_HYST
—
21
—
mV
AVDD response time
tAVDDBOD_DELAY Supply drops at 0.1V/μs rate
—
2.4
—
μs
EM4 BOD threshold
VEM4DBOD
AVDD rising
—
—
1.7
V
AVDD falling
1.45
—
—
V
—
46
—
mV
—
300
—
μs
EM4 BOD hysteresis
VEM4BOD_HYST
EM4 response time
tEM4BOD_DELAY
Supply drops at 0.1V/μs rate
4.1.7 Frequency Synthesizer Characteristics
Table 4.10. Frequency Synthesizer Characteristics
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
RF Synthesizer Frequency
range
FRANGE_2400
2.4 GHz frequency range
2400
—
2483.5
MHz
LO tuning frequency resolution with 38.4 MHz crystal
FRES_2400
2400 - 2483.5 MHz
—
—
73
Hz
Maximum frequency deviation with 38.4 MHz crystal
ΔFMAX_2400
—
—
1677
kHz
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Rev. 1.5 | 25
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.8 2.4 GHz RF Transceiver Characteristics
4.1.8.1 RF Transmitter General Characteristics for the 2.4 GHz Band
Unless otherwise indicated, typical conditions are: TOP = 25 °C,VDD = 3.3 V, DC-DC on. Crystal frequency = 38.4 MHz. RF center
frequency 2.45 GHz. Conducted measurement from the antenna feedpoint.
Table 4.11. RF Transmitter General Characteristics for 2.4 GHz Band
Parameter
Symbol
Maximum TX power +8dBm
rated parts
Test Condition
Min
Typ
Max
Unit
POUTMAX
—
+8
—
dBm
Maximum TX power +2dBm
rated parts
POUTMAX
—
+2
—
dBm
Minimum active TX Power
POUTMIN
CW
-26
—
dBm
Output power step size
POUTSTEP
-5 dBm < Output power < 0 dBm
—
1
—
dB
0 dBm < output power <
POUTMAX
—
0.5
—
dB
Output power variation vs
supply at POUTMAX
POUTVAR_V
2.4 V < VVREGVDD < 3.3 V using
DC-DC converter
—
2.2
—
dB
Output power variation vs
temperature at POUTMAX
POUTVAR_T
From -40 to +85 °C, PAVDD connected to DC-DC output
—
1.5
—
dB
Over RF tuning frequency range
—
0.4
—
dB
2400
—
2483.5
MHz
Output power variation vs RF POUTVAR_F
frequency at POUTMAX
RF tuning frequency range
FRANGE
4.1.8.2 RF Receiver General Characteristics for the 2.4 GHz Band
Unless otherwise indicated, typical conditions are: TOP = 25 °C,VDD = 3.3 V, DC-DC on. Crystal frequency =38.4 MHz. RF center frequency 2.440 GHz. Conducted measurement from the antenna feedpoint.
Table 4.12. RF Receiver General Characteristics for 2.4 GHz Band
Parameter
Symbol
RF tuning frequency range
FRANGE
Receive mode maximum
spurious emission
SPURRX
Max spurious emissions dur- SPURRX_FCC
ing active receive mode, per
FCC Part 15.109(a)
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Test Condition
Min
Typ
Max
Unit
2400
—
2483.5
MHz
30 MHz to 1 GHz
—
-57
—
dBm
1 GHz to 12 GHz
—
-47
—
dBm
216 MHz to 960 MHz, Conducted
Measurement
—
-55.2
—
dBm
Above 960 MHz, Conducted
Measurement
—
-47.2
—
dBm
Rev. 1.5 | 26
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.8.3 RF Receiver Characteristics for Bluetooth Low Energy in the 2.4 GHz Band
Unless otherwise indicated, typical conditions are: TOP = 25 °C,VDD = 3.3 V. Crystal frequency = 38.4 MHz. RF center frequency 2.440
GHz. DC-DC on. Conducted measurement from the antenna feedpoint.
Table 4.13. RF Receiver Characteristics for Bluetooth Low Energy in the 2.4GHz Band
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Max usable receiver input
level, 0.1% BER
SAT
Signal is reference signal1. Packet
length is 20 bytes.
—
10
—
dBm
30.8% Packet Error Rate2
SENS
With non-ideal signals as specified in RF-PHY.TS.4.2.2, section
4.6.1
—
-90
—
dBm
Signal to co-channel interfer- C/ICC
er, 0.1% BER
Desired signal 3 dB above reference sensitivity
—
8.3
—
dB
Blocking, 0.1% BER, Desired BLOCKOOB
is reference signal at -67
dBm. Interferer is CW in
OOB range.
Interferer frequency 30 MHz ≤ f ≤
2000 MHz
—
-27
—
dBm
Interferer frequency 2003 MHz ≤ f
≤ 2399 MHz
—
-32
—
dBm
Interferer frequency 2484 MHz ≤ f
≤ 2997 MHz
—
-32
—
dBm
Interferer frequency 3 GHz ≤ f ≤
12.75 GHz
—
-27
—
dBm
Per Core_4.1, Vol 6, Part A, Section 4.4 with n = 3
—
-25.8
—
dBm
Upper limit of input power
RSSIMAX
range over which RSSI resolution is maintained
—
—
5
dBm
Lower limit of input power
RSSIMIN
range over which RSSI resolution is maintained
-98
—
—
dBm
—
—
0.5
dB
Intermodulation performance IM
RSSI resolution
RSSIRES
Over RSSIMIN to RSSIMAX
Note:
1. Reference signal is defined 2GFSK at -67 dBm, Modulation index = 0.5, BT = 0.5, Bit rate = 1 Mbps, desired data = PRBS9;
interferer data = PRBS15; frequency accuracy better than 1 ppm
2. Receive sensitivity on Bluetooth Low Energy channel 26 is -86 dBm
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Rev. 1.5 | 27
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.9 Oscillators
4.1.9.1 LFXO
Table 4.14. LFXO
Parameter
Symbol
Crystal frequency
fLFXO
Test Condition
Overall frequency tolerance
in all conditions1
Min
Typ
Max
Unit
—
32.768
—
kHz
100
ppm
-100
Note:
1. XTAL nominal frequency tolerance = +/- 20 ppm
4.1.9.2 HFXO
Table 4.15. HFXO
Parameter
Symbol
Crystal frequency
fHFXO
Test Condition
Crystal frequency tolerance
Min
Typ
Max
Unit
-
38.4
-
MHz
40
ppm
-40
4.1.9.3 LFRCO
Table 4.16. LFRCO
Parameter
Symbol
Test Condition
Oscillation frequency
fLFRCO
Startup time
tLFRCO
Current consumption 1
ILFRCO
Min
Typ
Max
Unit
ENVREF = 1 in
CMU_LFRCOCTRL
30.474
32.768
34.243
kHz
ENVREF = 0 in
CMU_LFRCOCTRL
30.474
32.768
33.915
kHz
—
500
—
μs
ENVREF = 1 in
CMU_LFRCOCTRL
—
342
—
nA
ENVREF = 0 in
CMU_LFRCOCTRL
—
494
—
nA
Note:
1. Block is supplied by AVDD if ANASW = 0, or DVDD if ANASW=1 in EMU_PWRCTRL register
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Rev. 1.5 | 28
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.9.4 HFRCO and AUXHFRCO
Table 4.17. HFRCO and AUXHFRCO
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Frequency Accuracy
fHFRCO
Any frequency band, across supply voltage and temperature
-2.5
—
2.5
%
Start-up time
tHFRCO
fHFRCO ≥ 19 MHz
—
300
—
ns
4 < fHFRCO < 19 MHz
—
1
—
μs
fHFRCO ≤ 4 MHz
—
2.5
—
μs
fHFRCO = 38 MHz
—
204
228
μA
fHFRCO = 32 MHz
—
171
190
μA
fHFRCO = 26 MHz
—
147
164
μA
fHFRCO = 19 MHz
—
126
138
μA
fHFRCO = 16 MHz
—
110
120
μA
fHFRCO = 13 MHz
—
100
110
μA
fHFRCO = 7 MHz
—
81
91
μA
fHFRCO = 4 MHz
—
33
35
μA
fHFRCO = 2 MHz
—
31
35
μA
fHFRCO = 1 MHz
—
30
35
μA
Coarse (% of period)
—
0.8
—
%
Fine (% of period)
—
0.1
—
%
—
0.2
—
% RMS
Min
Typ
Max
Unit
0.95
1
1.07
kHz
Current consumption on all
supplies
Step size
Period Jitter
IHFRCO
SSHFRCO
PJHFRCO
4.1.9.5 ULFRCO
Table 4.18. ULFRCO
Parameter
Symbol
Oscillation frequency
fULFRCO
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Test Condition
Rev. 1.5 | 29
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.10 Flash Memory Characteristics
Table 4.19. Flash Memory Characteristics1
Parameter
Symbol
Flash erase cycles before
failure
ECFLASH
Flash data retention
Min
Typ
Max
Unit
10000
—
—
cycles
RETFLASH
10
—
—
years
Word (32-bit) programming
time
tW_PROG
20
26
40
μs
Page erase time
tPERASE
20
27
40
ms
Mass erase time
tMERASE
20
27
40
ms
Device erase time2
tDERASE
—
60
74
ms
Page erase current3
IERASE
—
—
3
mA
—
—
5
mA
—
—
3
mA
Mass or Device erase current3
Write current3
IWRITE
Test Condition
Note:
1. Flash data retention information is published in the Quarterly Quality and Reliability Report.
2. Device erase is issued over the AAP interface and erases all flash, SRAM, the Lock Bit (LB) page, and the User data page Lock
Word (ULW)
3. Measured at 25°C
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Rev. 1.5 | 30
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.11 GPIO
For the table below, see Figure 3.2 Power Supply Configuration on page 9 on page 5 to see the relation between the modules external
VDD pin and internal voltage supplies. The module itself has only one external power supply input (VDD).
Table 4.20. GPIO
Parameter
Symbol
Test Condition
Input low voltage
VIOIL
Input high voltage
Output high voltage relative
to IOVDD
VIOIH
VIOOH
Min
Typ
Max
Unit
GPIO pins
—
—
IOVDD*0.3
V
RESETn
—
—
AVDD*0.3
V
GPIO pins
IOVDD*0.7
—
—
V
RESETn
AVDD*0.7
—
—
V
Sourcing 3 mA, IOVDD ≥ 3 V,
IOVDD*0.8
—
—
V
IOVDD*0.6
—
—
V
IOVDD*0.8
—
—
V
IOVDD*0.6
—
—
V
—
—
IOVDD*0.2
V
—
—
IOVDD*0.4
V
—
—
IOVDD*0.2
V
—
—
IOVDD*0.4
V
All GPIO except LFXO pins, GPIO
≤ IOVDD
—
0.1
30
nA
LFXO Pins, GPIO ≤ IOVDD
—
0.1
50
nA
IOVDD < GPIO ≤ IOVDD + 2 V
—
3.3
15
μA
DRIVESTRENGTH1 = WEAK
Sourcing 1.2 mA, IOVDD ≥ 1.62
V,
DRIVESTRENGTH1 = WEAK
Sourcing 20 mA, IOVDD ≥ 3 V,
DRIVESTRENGTH1 = STRONG
Sourcing 8 mA, IOVDD ≥ 1.62 V,
DRIVESTRENGTH1 = STRONG
Output low voltage relative to VIOOL
IOVDD
Sinking 3 mA, IOVDD ≥ 3 V,
DRIVESTRENGTH1 = WEAK
Sinking 1.2 mA, IOVDD ≥ 1.62 V,
DRIVESTRENGTH1 = WEAK
Sinking 20 mA, IOVDD ≥ 3 V,
DRIVESTRENGTH1 = STRONG
Sinking 8 mA, IOVDD ≥ 1.62 V,
DRIVESTRENGTH1 = STRONG
Input leakage current
IIOLEAK
Input leakage current on
5VTOL pads above IOVDD
I5VTOLLEAK
I/O pin pull-up resistor
RPU
30
43
65
kΩ
I/O pin pull-down resistor
RPD
30
43
65
kΩ
20
25
35
ns
Pulse width of pulses retIOGLITCH
moved by the glitch suppression filter
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Rev. 1.5 | 31
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
Parameter
Symbol
Test Condition
Output fall time, From 70%
to 30% of VIO
tIOOF
CL = 50 pF,
Min
Typ
Max
Unit
—
1.8
—
ns
—
4.5
—
ns
—
2.2
—
ns
—
7.4
—
ns
100
—
—
ns
Min
Typ
Max
Unit
DRIVESTRENGTH1 = STRONG,
SLEWRATE1 = 0x6
CL = 50 pF,
DRIVESTRENGTH1 = WEAK,
SLEWRATE1 = 0x6
Output rise time, From 30%
to 70% of VIO
tIOOR
CL = 50 pF,
DRIVESTRENGTH1 = STRONG,
SLEWRATE = 0x61
CL = 50 pF,
DRIVESTRENGTH1 = WEAK,
SLEWRATE1 = 0x6
RESETn low time to ensure
pin reset
TRESET
Note:
1. In GPIO_Pn_CTRL register
4.1.12 VMON
Table 4.21. VMON
Parameter
Symbol
Test Condition
VMON Supply Current
IVMON
In EM0 or EM1, 1 supply monitored
—
5.8
8.26
μA
In EM0 or EM1, 4 supplies monitored
—
11.8
16.8
μA
In EM2, EM3 or EM4, 1 supply
monitored
—
62
—
nA
In EM2, EM3 or EM4, 4 supplies
monitored
—
99
—
nA
In EM0 or EM1
—
2
—
μA
In EM2, EM3 or EM4
—
2
—
nA
1.62
—
3.4
V
Coarse
—
200
—
mV
Fine
—
20
—
mV
Supply drops at 1V/μs rate
—
460
—
ns
—
26
—
mV
VMON Loading of Monitored ISENSE
Supply
Threshold range
VVMON_RANGE
Threshold step size
NVMON_STESP
Response time
tVMON_RES
Hysteresis
VVMON_HYST
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.13 ADC
For the table below, see Figure 3.2 Power Supply Configuration on page 9 to see the relation between the modules external VDD pin
and internal voltage supplies. The module itself has only one external power supply input (VDD).
Table 4.22. ADC
Parameter
Symbol
Resolution
VRESOLUTION
Input voltage range
VADCIN
Test Condition
Single ended
Differential
Input range of external refer- VADCREFIN_P
ence voltage, single ended
and differential
Min
Typ
Max
Unit
6
—
12
Bits
0
—
2*VREF
V
-VREF
—
VREF
V
1
—
VAVDD
V
Power supply rejection1
PSRRADC
At DC
—
80
—
dB
Analog input common mode
rejection ratio
CMRRADC
At DC
—
80
—
dB
1 Msps / 16 MHz ADCCLK,
—
301
350
μA
250 ksps / 4 MHz ADCCLK, BIASPROG = 6, GPBIASACC = 1 3
—
149
—
μA
62.5 ksps / 1 MHz ADCCLK,
—
91
—
μA
—
51
—
μA
—
9
—
μA
—
117
—
μA
—
79
—
μA
Current from all supplies, us- IADC_CONTIing internal reference buffer. NOUS_LP
Continous operation. WARMUPMODE2 = KEEPADCWARM
BIASPROG = 0, GPBIASACC = 1
3
BIASPROG = 15, GPBIASACC =
13
Current from all supplies, us- IADC_NORMAL_LP 35 ksps / 16 MHz ADCCLK,
ing internal reference buffer.
BIASPROG = 0, GPBIASACC = 1
Duty-cycled operation. WAR3
2
MUPMODE = NORMAL
5 ksps / 16 MHz ADCCLK
BIASPROG = 0, GPBIASACC = 1
3
Current from all supplies, us- IADC_STANDing internal reference buffer. BY_LP
Duty-cycled operation.
AWARMUPMODE2 = KEEPINSTANDBY or KEEPINSLOWACC
125 ksps / 16 MHz ADCCLK,
BIASPROG = 0, GPBIASACC = 1
3
35 ksps / 16 MHz ADCCLK,
BIASPROG = 0, GPBIASACC = 1
3
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
Parameter
Symbol
Current from all supplies, us- IADC_CONTIing internal reference buffer. NOUS_HP
Continous operation. WARMUPMODE2 = KEEPADCWARM
Test Condition
Min
Typ
Max
Unit
—
345
—
μA
250 ksps / 4 MHz ADCCLK, BIASPROG = 6, GPBIASACC = 0 3
—
191
—
μA
62.5 ksps / 1 MHz ADCCLK,
—
132
—
μA
—
102
—
μA
—
17
—
μA
—
162
—
μA
—
123
—
μA
—
140
—
μA
1 Msps / 16 MHz ADCCLK,
BIASPROG = 0, GPBIASACC = 0
3
BIASPROG = 15, GPBIASACC =
03
Current from all supplies, us- IADC_NORMAL_HP 35 ksps / 16 MHz ADCCLK,
ing internal reference buffer.
BIASPROG = 0, GPBIASACC = 0
Duty-cycled operation. WAR3
2
MUPMODE = NORMAL
5 ksps / 16 MHz ADCCLK
BIASPROG = 0, GPBIASACC = 0
3
Current from all supplies, us- IADC_STANDing internal reference buffer. BY_HP
Duty-cycled operation.
AWARMUPMODE2 = KEEPINSTANDBY or KEEPINSLOWACC
125 ksps / 16 MHz ADCCLK,
BIASPROG = 0, GPBIASACC = 0
3
35 ksps / 16 MHz ADCCLK,
BIASPROG = 0, GPBIASACC = 0
3
Current from HFPERCLK
IADC_CLK
ADC Clock Frequency
fADCCLK
—
—
16
MHz
Throughput rate
fADCRATE
—
—
1
Msps
Conversion time4
tADCCONV
6 bit
—
7
—
cycles
8 bit
—
9
—
cycles
12 bit
—
13
—
cycles
WARMUPMODE2 = NORMAL
—
—
5
μs
WARMUPMODE2 = KEEPINSTANDBY
—
—
2
μs
WARMUPMODE2 = KEEPINSLOWACC
—
—
1
μs
Internal reference, 2.5 V full-scale,
differential (-1.25, 1.25)
58
67
—
dB
vrefp_in = 1.25 V direct mode with
2.5 V full-scale, differential
—
68
—
dB
Startup time of reference
generator and ADC core
SNDR at 1Msps and fin =
10kHz
tADCSTART
SNDRADC
HFPERCLK = 16 MHz
Spurious-Free Dynamic
Range (SFDR)
SFDRADC
1 MSamples/s, 10 kHz full-scale
sine wave
—
75
—
dB
Input referred ADC noise,
rms
VREF_NOISE
Including quantization noise and
distortion
—
380
—
μV
Offset Error
VADCOFFSETERR
-3
0.25
3
LSB
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Rev. 1.5 | 34
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Gain error in ADC
VADC_GAIN
Using internal reference
—
-0.2
3.5
%
Using external reference
—
-1
—
%
Differential non-linearity
(DNL)
DNLADC
12 bit resolution
-1
—
2
LSB
Integral non-linearity (INL),
End point method
INLADC
12 bit resolution
-6
—
6
LSB
Temperature Sensor Slope
VTS_SLOPE
—
-1.84
—
mV/°C
Note:
1. PSRR is referenced to AVDD when ANASW=0 and to DVDD when ANASW=1 in EMU_PWRCTRL
2. In ADCn_CNTL register
3. In ADCn_BIASPROG register
4. Derived from ADCCLK
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Rev. 1.5 | 35
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.14 IDAC
For the table below, see Figure 3.2 Power Supply Configuration on page 9 on page 5 to see the relation between the modules external
VDD pin and internal voltage supplies. The module itself has only one external power supply input (VDD).
Table 4.23. IDAC
Parameter
Symbol
Number of Ranges
NIDAC_RANGES
Output Current
IIDAC_OUT
Linear steps within each
range
NIDAC_STEPS
Step size
SSIDAC
Total Accuracy, STEPSEL1 = ACCIDAC
0x10
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Test Condition
Min
Typ
Max
Unit
—
4
—
-
RANGSEL1 = RANGE0
0.05
—
1.6
μA
RANGSEL1 = RANGE1
1.6
—
4.7
μA
RANGSEL1 = RANGE2
0.5
—
16
μA
RANGSEL1 = RANGE3
2
—
64
μA
—
32
—
RANGSEL1 = RANGE0
—
50
—
nA
RANGSEL1 = RANGE1
—
100
—
nA
RANGSEL1 = RANGE2
—
500
—
nA
RANGSEL1 = RANGE3
—
2
—
μA
EM0 or EM1, AVDD=3.3 V, T = 25
°C
-2
—
2
%
EM0 or EM1
-18
—
22
%
EM2 or EM3, Source mode,
RANGSEL1 = RANGE0,
AVDD=3.3 V, T = 25 °C
—
-2
—
%
EM2 or EM3, Source mode,
RANGSEL1 = RANGE1,
AVDD=3.3 V, T = 25 °C
—
-1.7
—
%
EM2 or EM3, Source mode,
RANGSEL1 = RANGE2,
AVDD=3.3 V, T = 25 °C
—
-0.8
—
%
EM2 or EM3, Source mode,
RANGSEL1 = RANGE3,
AVDD=3.3 V, T = 25 °C
—
-0.5
—
%
EM2 or EM3, Sink mode, RANGSEL1 = RANGE0, AVDD=3.3 V, T
= 25 °C
—
-0.7
—
%
EM2 or EM3, Sink mode, RANGSEL1 = RANGE1, AVDD=3.3 V, T
= 25 °C
—
-0.6
—
%
EM2 or EM3, Sink mode, RANGSEL1 = RANGE2, AVDD=3.3 V, T
= 25 °C
—
-0.5
—
%
EM2 or EM3, Sink mode, RANGSEL1 = RANGE3, AVDD=3.3 V, T
= 25 °C
—
-0.5
—
%
Rev. 1.5 | 36
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Start up time
tIDAC_SU
Output within 1% of steady state
value
—
5
—
μs
Settling time, (output settled tIDAC_SETTLE
within 1% of steady state value)
Range setting is changed
—
5
—
μs
Step value is changed
—
1
—
μs
Current consumption in EM0 IIDAC
or EM1 2
Source mode, excluding output
current
—
8.9
13
μA
Sink mode, excluding output current
—
12
16
μA
Source mode, excluding output
current, duty cycle mode, T = 25
°C
—
1.04
—
μA
Sink mode, excluding output current, duty cycle mode, T = 25 °C
—
1.08
—
μA
Source mode, excluding output
current, duty cycle mode, T ≥ 85
°C
—
8.9
—
μA
Sink mode, excluding output current, duty cycle mode, T ≥ 85 °C
—
12
—
μA
RANGESEL1=0, output voltage =
min(VIOVDD, VAVDD2-100 mv)
—
0.04
—
%
RANGESEL1=1, output voltage =
min(VIOVDD, VAVDD2-100 mV)
—
0.02
—
%
RANGESEL1=2, output voltage =
min(VIOVDD, VAVDD2-150 mV)
—
0.02
—
%
RANGESEL1=3, output voltage =
min(VIOVDD, VAVDD2-250 mV)
—
0.02
—
%
RANGESEL1=0, output voltage =
100 mV
—
0.18
—
%
RANGESEL1=1, output voltage =
100 mV
—
0.12
—
%
RANGESEL1=2, output voltage =
150 mV
—
0.08
—
%
RANGESEL1=3, output voltage =
250 mV
—
0.02
—
%
Current consumption in EM2
or EM32
Output voltage compliance in ICOMP_SRC
source mode, source current
change relative to current
sourced at 0 V
Output voltage compliance in ICOMP_SINK
sink mode, sink current
change relative to current
sunk at IOVDD
Note:
1. In IDAC_CURPROG register
2. The IDAC is supplied by either AVDD, DVDD, or IOVDD based on the setting of ANASW in the EMU_PWRCTRL register and
PWRSEL in the IDAC_CTRL register. Setting PWRSEL to 1 selects IOVDD. With PWRSEL cleared to 0, ANASW selects between AVDD (0) and DVDD (1).
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Rev. 1.5 | 37
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.15 Analog Comparator (ACMP)
Table 4.24. ACMP
Parameter
Symbol
Test Condition
Input voltage range
VACMPIN
ACMPVDD =
ACMPn_CTRL_PWRSEL 1
Supply Voltage
VACMPVDD
Active current not including
voltage reference
IACMP
Current consumption of inter- IACMPREF
nal voltage reference
Hysteresis (VCM = 1.25 V,
BIASPROG2 = 0x10, FULLBIAS2 = 1)
VACMPHYST
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Min
Typ
Max
Unit
0
—
VACMPVDD
V
BIASPROG2 ≤ 0x10 or FULLBIAS2 = 0
1.85
—
VVREGVDD_
V
0x10 < BIASPROG2 ≤ 0x20 and
FULLBIAS2 = 1
2.1
BIASPROG2 = 0x10, FULLBIAS2
=0
—
306
—
nA
BIASPROG2 = 0x20, FULLBIAS2
=1
—
74
95
μA
VLP selected as input using 2.5 V
Reference / 4 (0.625 V)
—
50
—
nA
VLP selected as input using VDD
—
20
—
nA
VBDIV selected as input using
1.25 V reference / 1
—
4.1
—
μA
VADIV selected as input using
VDD/1
—
2.4
—
μA
HYSTSEL3 = HYST0
-1.75
0
1.75
mV
HYSTSEL3 = HYST1
10
18
26
mV
HYSTSEL3 = HYST2
21
32
46
mV
HYSTSEL3 = HYST3
27
44
63
mV
HYSTSEL3 = HYST4
32
55
80
mV
HYSTSEL3 = HYST5
38
65
100
mV
HYSTSEL3 = HYST6
43
77
121
mV
HYSTSEL3 = HYST7
47
86
148
mV
HYSTSEL3 = HYST8
-4
0
4
mV
HYSTSEL3 = HYST9
-27
-18
-10
mV
HYSTSEL3 = HYST10
-47
-32
-18
mV
HYSTSEL3 = HYST11
-64
-43
-27
mV
HYSTSEL3 = HYST12
-78
-54
-32
mV
HYSTSEL3 = HYST13
-93
-64
-37
mV
HYSTSEL3 = HYST14
-113
-74
-42
mV
HYSTSEL3 = HYST15
-135
-85
-47
mV
MAX
—
VVREGVDD_
V
MAX
Rev. 1.5 | 38
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Comparator delay4
tACMPDELAY
BIASPROG2 = 0x10, FULLBIAS2
=0
—
3.7
—
μs
BIASPROG2 = 0x20, FULLBIAS2
=1
—
35
—
ns
-35
—
35
mV
Offset voltage
VACMPOFFSET
BIASPROG2 =0x10, FULLBIAS2
=1
Reference Voltage
VACMPREF
Internal 1.25 V reference
1
1.25
1.47
V
Internal 2.5 V reference
2
2.5
2.8
V
CSRESSEL5 = 0
—
inf
—
kΩ
CSRESSEL5 = 1
—
15
—
kΩ
CSRESSEL5 = 2
—
27
—
kΩ
CSRESSEL5 = 3
—
39
—
kΩ
CSRESSEL5 = 4
—
51
—
kΩ
CSRESSEL5 = 5
—
102
—
kΩ
CSRESSEL5 = 6
—
164
—
kΩ
CSRESSEL5 = 7
—
239
—
kΩ
Capacitive Sense Internal
Resistance
RCSRES
Note:
1. ACMPVDD is a supply chosen by the setting in ACMPn_CTRL_PWRSEL and may be IOVDD, AVDD or DVDD
2. In ACMPn_CTRL register
3. In ACMPn_HYSTERESIS register
4. ±100 mV differential drive
5. In ACMPn_INPUTSEL register
The total ACMP current is the sum of the contributions from the ACMP and its internal voltage reference as given as:
IACMPTOTAL = IACMP + IACMPREF
IACMPREF is zero if an external voltage reference is used.
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Rev. 1.5 | 39
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.16 I2C
I2C Standard-mode (Sm)
Table 4.25. I2C Standard-mode (Sm)1
Parameter
Symbol
SCL clock frequency2
Test Condition
Min
Typ
Max
Unit
fSCL
0
—
100
kHz
SCL clock low time
tLOW
4.7
—
—
μs
SCL clock high time
tHIGH
4
—
—
μs
SDA set-up time
tSU,DAT
250
—
—
ns
SDA hold time3
tHD,DAT
100
—
3450
ns
Repeated START condition
set-up time
tSU,STA
4.7
—
—
μs
(Repeated) START condition tHD,STA
hold time
4
—
—
μs
STOP condition set-up time
tSU,STO
4
—
—
μs
Bus free time between a
STOP and START condition
tBUF
4.7
—
—
μs
Note:
1. For CLHR set to 0 in the I2Cn_CTRL register
2. For the minimum HFPERCLK frequency required in Standard-mode, refer to the I2C chapter in the reference manual
3. The maximum SDA hold time (tHD,DAT) needs to be met only when the device does not stretch the low time of SCL (tLOW)
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
I2C Fast-mode (Fm)
Table 4.26. I2C Fast-mode (Fm)1
Parameter
Symbol
SCL clock frequency2
Test Condition
Min
Typ
Max
Unit
fSCL
0
—
400
kHz
SCL clock low time
tLOW
1.3
—
—
μs
SCL clock high time
tHIGH
0.6
—
—
μs
SDA set-up time
tSU,DAT
100
—
—
ns
SDA hold time3
tHD,DAT
100
—
900
ns
Repeated START condition
set-up time
tSU,STA
0.6
—
—
μs
(Repeated) START condition tHD,STA
hold time
0.6
—
—
μs
STOP condition set-up time
tSU,STO
0.6
—
—
μs
Bus free time between a
STOP and START condition
tBUF
1.3
—
—
μs
Note:
1. For CLHR set to 1 in the I2Cn_CTRL register
2. For the minimum HFPERCLK frequency required in Fast-mode, refer to the I2C chapter in the reference manual
3. The maximum SDA hold time (tHD,DAT) needs to be met only when the device does not stretch the low time of SCL (tLOW)
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Rev. 1.5 | 41
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
I2C Fast-mode Plus (Fm+)
Table 4.27. I2C Fast-mode Plus (Fm+)1
Parameter
Symbol
SCL clock frequency2
Test Condition
Min
Typ
Max
Unit
fSCL
0
—
1000
kHz
SCL clock low time
tLOW
0.5
—
—
μs
SCL clock high time
tHIGH
0.26
—
—
μs
SDA set-up time
tSU,DAT
50
—
—
ns
SDA hold time
tHD,DAT
100
—
—
ns
Repeated START condition
set-up time
tSU,STA
0.26
—
—
μs
(Repeated) START condition tHD,STA
hold time
0.26
—
—
μs
STOP condition set-up time
tSU,STO
0.26
—
—
μs
Bus free time between a
STOP and START condition
tBUF
0.5
—
—
μs
Note:
1. For CLHR set to 0 or 1 in the I2Cn_CTRL register
2. For the minimum HFPERCLK frequency required in Fast-mode Plus, refer to the I2C chapter in the reference manual
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Rev. 1.5 | 42
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
4.1.17 USART SPI
SPI Master Timing
Table 4.28. SPI Master Timing
Parameter
Symbol
SCLK period 1 2
tSCLK
CS to MOSI 1 2
Test Condition
Min
Typ
Max
Unit
2*
tHFPERCLK
—
—
ns
tCS_MO
0
—
8
ns
SCLK to MOSI 1 2
tSCLK_MO
3
—
20
ns
MISO setup time 1 2
tSU_MI
IOVDD = 1.62 V
56
—
—
ns
IOVDD = 3.0 V
37
—
—
ns
6
—
—
ns
tH_MI
MISO hold time 1 2
Note:
1. Applies for both CLKPHA = 0 and CLKPHA = 1 (figure only shows CLKPHA = 0)
2. Measurement done with 8 pF output loading at 10% and 90% of VDD (figure shows 50% of VDD)
CS
tCS_MO
tSCKL_MO
SCLK
CLKPOL = 0
tSCLK
SCLK
CLKPOL = 1
MOSI
tSU_MI
tH_MI
MISO
Figure 4.1. SPI Master Timing Diagram (SMSDELAY = 0)
CS
tCS_MO
tSCLK_MO
SCLK
CLKPOL = 0
tSCLK
SCLK
CLKPOL = 1
MOSI
tSU_MI
tH_MI
MISO
Figure 4.2. SPI Master Timing Diagram (SMSDELAY = 1)
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Rev. 1.5 | 43
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Electrical Specifications
SPI Slave Timing
Table 4.29. SPI Slave Timing
Parameter
Symbol
SCKL period 1 2
Test Condition
Min
Typ
Max
Unit
tSCLK_sl
2*
tHFPERCLK
—
—
ns
SCLK high period1 2
tSCLK_hi
3*
tHFPERCLK
—
—
ns
SCLK low period 1,2
tSCLK_lo
3*
tHFPERCLK
—
—
ns
CS active to MISO 1 2
tCS_ACT_MI
4
—
50
ns
CS disable to MISO 1 2
tCS_DIS_MI
4
—
50
ns
MOSI setup time 1 2
tSU_MO
4
—
—
ns
MOSI hold time 1 2
tH_MO
3+2*
tHFPERCLK
—
—
ns
SCLK to MISO 1 2
tSCLK_MI
16 +
tHFPERCLK
—
66 + 2 *
tHFPERCLK
ns
Note:
1. Applies for both CLKPHA = 0 and CLKPHA = 1 (figure only shows CLKPHA = 0)
2. Measurement done with 8 pF output loading at 10% and 90% of VDD (figure shows 50% of VDD)
CS
tCS_ACT_MI
tCS_DIS_MI
SCLK
CLKPOL = 0
SCLK
CLKPOL = 1
tSCLK_HI
tSU_MO
tSCLK_LO
tSCLK
tH_MO
MOSI
tSCLK_MI
MISO
Figure 4.3. SPI Slave Timing Diagram
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Typical Connection Diagrams
5. Typical Connection Diagrams
5.1 Typical Connections
The figure below shows a typical reference schematic and how to connect:
•
•
•
•
•
•
Power supplies and Ground pins
Antenna loop for internal antenna usage
XTAL loop
Debug port
Reset line
Optional UART connection to an external host for Network Co-Processor (NCP) usage
Note: It's recommended to connect the reset line to the host CPU when NCP mode is used.
Note: The V_1V8 pin is the 1.8V output of the internal DC-DC converter. This pin should be left unconnected. Do not add external
decoupling or power external circuits from this pin.
Figure 5.1. Typical Connections
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Layout Guidelines
6. Layout Guidelines
For optimal performance of the BGM121/BGM123, please follow the PCB layout guidelines and ground plane recommendations indicated in this section.
6.1 Layout Guidelines
This section contains generic PCB layout and design guidelines for the BGM121/BGM123 module. Generally, please follow these
guidelines:
• Place the module at the edge of the PCB, as shown in the figures in this chapter.
• Do not place any metal (traces, components, etc.) in the antenna clearance area.
• Connect all ground pads directly to a solid ground plane.
• Place the ground vias as close to the ground pads as possible.
Figure 6.1. BGM121/BGM123 PCB Top Layer Design
Following rules are recommended for the PCB design:
• Trace to copper clearance 150 μm
• PTH drill size 300 μm
• PTH annular ring 150 μm
Important:
The antenna area must align with the pads precisely. Please refer to the recommended PCB land pattern for exact dimensions.
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Layout Guidelines
Figure 6.2. BGM121/BGM123 PCB Middle and Bottom Layer Design
Figure 6.3. Poor Layout Designs for the BGM121/BGM123
Layout checklist for BGM121/BGM123:
1. Antenna area is aligned relative to the module pads as shown in the recommended PCB land pattern
2. Clearance area within the inner layers and bottom layer is covering the whole antenna area as shown in the layoyt guidelines
3. The antenna loop is implemented on top layer as shown in the layoyt guidelines
4. All dimensions within the antenna area are precisely as shown in the recommended PCB land pattern
5. The module is placed to the edge of the PCB with max 1mm intendation
6. The mdoule is not placed to the corner of the PCB
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Layout Guidelines
6.2 Effect of PCB Width
The BGM121/BGM123 module should be placed at the center of the PCB edge because the width of the board has an impact to the
radiated efficiency but more importantly there should be enough ground plane on both sides of the module for optimal antenna performance. The figure below gives an indcation of ground plane size vs. maximum achievable range.
Figure 6.4. BGM121/BGM123 PCB Top Layer Design
The impact of the board size to the radiated performance is a generic feature of all PCB and chip antennas and it is not a unique feature of BGM121/BGM123. In case of BGM121/BGM123 the depth of the board is not important and it doesn’t impact the radiated performance.
6.3 Effect of Plastic and Metal Materials
The antenna on the BGM121/BGM123. is insensitive to the effects of nearby plastic and other materials with low dielectric constant and
no separation between the BGM121/BGM123. and plastic or other materials is needed. Also the board thickness doesn’t have any impact the module.
Any metal within the antenna area or in close proximity to the antenna area may detune the antenna. In this case it is possible to retune
the antenna by adjusting the width of the antenna loop. To avoid detuning of the antenna the minimum distance to any metal should be
more than 3mm. Encapsulating the module inside metal casing will prevent the radiation of the antenna.
Following picture shows how it is possible to adjust the frequency of the antenna. The antenna is extremely robust against any objects
in close proximity or in direct touch with the antenna and it is recommended not to adjust the dimensions of the antenna area unless it is
clear that a metal object, such as a coin cell battery, within the antenna area is detuning the antenna.
Figure 6.5. Tuning the Antenna by Adjusting the Width of the Antenna Loop
6.4 Effect of Human Body
Placing the module in touch or very close to the human body will negatively impact antenna efficiency and reduce range.
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Layout Guidelines
6.5 2D Radiation Pattern Plots
Figure 6.6. Typical 2D Radiation Pattern – Front View
Figure 6.7. Typical 2D Radiation Pattern – Side View
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Layout Guidelines
Figure 6.8. Typical 2D Radiation Pattern – Top View
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Rev. 1.5 | 50
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
7. Pin Definitions
7.1 Pin Definitions
Figure 7.1. BGM121/BGM123 Pinout
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Table 7.1. Device Pinout
Pin Alternate Functionality / Description
Pin #
Pin Name
Analog
Timers
Communication
Radio
Other
Reset input, active low.To apply an external reset source to this pin, it is required to only drive this pin low
during reset, and let the internal pull-up ensure that reset is released.
1
RESETn
2
GND
Ground
3
GND
Ground
4
2G4RF_ANT_
50 ohm input pin for the internal 2.4GHz antenna
IN
5
2G4RF_RF_P
50 ohm 2.4GHz RF input and output
ORT
6
GND
Ground
23
DNC
Do not connect but leave floating
24
DNC
Do not connect but leave floating
25
GND
Ground
26
V_BATT
27
GND
28
V_1V8
29
GND
Ground
30
DNC
Do not connect but leave floating
31
V_IOVDD
32
GND
Ground
47
GND
Ground
48
HFXO_IN
38.4MHz XTAL input. Connect to HFXO_OUT.
49
HFXO_OUT
38.4MHz XTAL output. Connect to HFXO_IN.
50
GND
Ground
51
GND
Ground
52
GND
Ground
53
ANT_GND
54
GND
Ground
55
GND
Ground
56
GND
Ground
1.85 - 3.8VDC input to the internal DC-DC converter and AVDD. Internally decoupled and does not require
decoupling capacitors.
Ground
1.8V output of the internal DC-DC converter. Internally decoupled so do not use an external decoupling capacitor.
Digital I/O power supply.
Antenna ground
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Pin Alternate Functionality / Description
Pin #
Pin Name
PD9
7
Analog
Timers
Communication
Radio
Other
BUSCY [ADC0:
APORT3YCH1
ACMP0:
APORT3YCH1
ACMP1:
APORT3YCH1
IDAC0:
APORT1YCH1]
TIM0_CC0 #17
TIM0_CC1 #16
TIM0_CC2 #15
TIM0_CDTI0 #14
TIM0_CDTI1 #13
TIM0_CDTI2 #12
TIM1_CC0 #17
TIM1_CC1 #16
TIM1_CC2 #15
TIM1_CC3 #14 LETIM0_OUT0 #17
LETIM0_OUT1 #16
PCNT0_S0IN #17
PCNT0_S1IN #16
US0_TX #17
US0_RX #16
US0_CLK #15
US0_CS #14
US0_CTS #13
US0_RTS #12
US1_TX #17
US1_RX #16
US1_CLK #15
US1_CS #14
US1_CTS #13
US1_RTS #12
LEU0_TX #17
LEU0_RX #16
I2C0_SDA #17
I2C0_SCL #16
FRC_DCLK #17
FRC_DOUT #16
FRC_DFRAME #15
MODEM_DCLK
#17 MODEM_DIN
#16 MODEM_DOUT #15
MODEM_ANT0
#14 MODEM_ANT1 #13
CMU_CLK0 #4
PRS_CH3 #8
PRS_CH4 #0
PRS_CH5 #6
PRS_CH6 #11
ACMP0_O #17
ACMP1_O #17
TIM0_CC0 #18
TIM0_CC1 #17
TIM0_CC2 #16
TIM0_CDTI0 #15
TIM0_CDTI1 #14
TIM0_CDTI2 #13
TIM1_CC0 #18
TIM1_CC1 #17
TIM1_CC2 #16
TIM1_CC3 #15 LETIM0_OUT0 #18
LETIM0_OUT1 #17
PCNT0_S0IN #18
PCNT0_S1IN #17
US0_TX #18
US0_RX #17
US0_CLK #16
US0_CS #15
US0_CTS #14
US0_RTS #13
US1_TX #18
US1_RX #17
US1_CLK #16
US1_CS #15
US1_CTS #14
US1_RTS #13
LEU0_TX #18
LEU0_RX #17
I2C0_SDA #18
I2C0_SCL #17
FRC_DCLK #18
FRC_DOUT #17
FRC_DFRAME #16
MODEM_DCLK
#18 MODEM_DIN
#17 MODEM_DOUT #16
MODEM_ANT0
#15 MODEM_ANT1 #14
CMU_CLK1 #4
PRS_CH3 #9
PRS_CH4 #1
PRS_CH5 #0
PRS_CH6 #12
ACMP0_O #18
ACMP1_O #18
TIM0_CC0 #19
TIM0_CC1 #18
TIM0_CC2 #17
TIM0_CDTI0 #16
TIM0_CDTI1 #15
TIM0_CDTI2 #14
TIM1_CC0 #19
TIM1_CC1 #18
TIM1_CC2 #17
TIM1_CC3 #16 LETIM0_OUT0 #19
LETIM0_OUT1 #18
PCNT0_S0IN #19
PCNT0_S1IN #18
US0_TX #19
US0_RX #18
US0_CLK #17
US0_CS #16
US0_CTS #15
US0_RTS #14
US1_TX #19
US1_RX #18
US1_CLK #17
US1_CS #16
US1_CTS #15
US1_RTS #14
LEU0_TX #19
LEU0_RX #18
I2C0_SDA #19
I2C0_SCL #18
FRC_DCLK #19
FRC_DOUT #18
FRC_DFRAME #17
MODEM_DCLK
#19 MODEM_DIN
#18 MODEM_DOUT #17
MODEM_ANT0
#16 MODEM_ANT1 #15
PRS_CH3 #10
PRS_CH4 #2
PRS_CH5 #1
PRS_CH6 #13
ACMP0_O #19
ACMP1_O #19
BUSDX [ADC0:
APORT4XCH1
ACMP0:
APORT4XCH1
ACMP1:
APORT4XCH1]
8
PD10
BUSCX [ADC0:
APORT3XCH2
ACMP0:
APORT3XCH2
ACMP1:
APORT3XCH2
IDAC0:
APORT1XCH2]
BUSDY [ADC0:
APORT4YCH2
ACMP0:
APORT4YCH2
ACMP1:
APORT4YCH2]
9
PD11
BUSCY [ADC0:
APORT3YCH3
ACMP0:
APORT3YCH3
ACMP1:
APORT3YCH3
IDAC0:
APORT1YCH3]
BUSDX [ADC0:
APORT4XCH3
ACMP0:
APORT4XCH3
ACMP1:
APORT4XCH3]
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Pin Alternate Functionality / Description
Pin #
10
Pin Name
Analog
Timers
Communication
Radio
Other
PD12
BUSCX [ADC0:
APORT3XCH4
ACMP0:
APORT3XCH4
ACMP1:
APORT3XCH4
IDAC0:
APORT1XCH4]
TIM0_CC0 #20
TIM0_CC1 #19
TIM0_CC2 #18
TIM0_CDTI0 #17
TIM0_CDTI1 #16
TIM0_CDTI2 #15
TIM1_CC0 #20
TIM1_CC1 #19
TIM1_CC2 #18
TIM1_CC3 #17 LETIM0_OUT0 #20
LETIM0_OUT1 #19
PCNT0_S0IN #20
PCNT0_S1IN #19
US0_TX #20
US0_RX #19
US0_CLK #18
US0_CS #17
US0_CTS #16
US0_RTS #15
US1_TX #20
US1_RX #19
US1_CLK #18
US1_CS #17
US1_CTS #16
US1_RTS #15
LEU0_TX #20
LEU0_RX #19
I2C0_SDA #20
I2C0_SCL #19
FRC_DCLK #20
FRC_DOUT #19
FRC_DFRAME #18
MODEM_DCLK
#20 MODEM_DIN
#19 MODEM_DOUT #18
MODEM_ANT0
#17 MODEM_ANT1 #16
PRS_CH3 #11
PRS_CH4 #3
PRS_CH5 #2
PRS_CH6 #14
ACMP0_O #20
ACMP1_O #20
TIM0_CC0 #21
TIM0_CC1 #20
TIM0_CC2 #19
TIM0_CDTI0 #18
TIM0_CDTI1 #17
TIM0_CDTI2 #16
TIM1_CC0 #21
TIM1_CC1 #20
TIM1_CC2 #19
TIM1_CC3 #18 LETIM0_OUT0 #21
LETIM0_OUT1 #20
PCNT0_S0IN #21
PCNT0_S1IN #20
US0_TX #21
US0_RX #20
US0_CLK #19
US0_CS #18
US0_CTS #17
US0_RTS #16
US1_TX #21
US1_RX #20
US1_CLK #19
US1_CS #18
US1_CTS #17
US1_RTS #16
LEU0_TX #21
LEU0_RX #20
I2C0_SDA #21
I2C0_SCL #20
FRC_DCLK #21
FRC_DOUT #20
FRC_DFRAME #19
MODEM_DCLK
#21 MODEM_DIN
#20 MODEM_DOUT #19
MODEM_ANT0
#18 MODEM_ANT1 #17
PRS_CH3 #12
PRS_CH4 #4
PRS_CH5 #3
PRS_CH6 #15
ACMP0_O #21
ACMP1_O #21
TIM0_CC0 #22
TIM0_CC1 #21
TIM0_CC2 #20
TIM0_CDTI0 #19
TIM0_CDTI1 #18
TIM0_CDTI2 #17
TIM1_CC0 #22
TIM1_CC1 #21
TIM1_CC2 #20
TIM1_CC3 #19 LETIM0_OUT0 #22
LETIM0_OUT1 #21
PCNT0_S0IN #22
PCNT0_S1IN #21
US0_TX #22
US0_RX #21
US0_CLK #20
US0_CS #19
US0_CTS #18
US0_RTS #17
US1_TX #22
US1_RX #21
US1_CLK #20
US1_CS #19
US1_CTS #18
US1_RTS #17
LEU0_TX #22
LEU0_RX #21
I2C0_SDA #22
I2C0_SCL #21
FRC_DCLK #22
FRC_DOUT #21
FRC_DFRAME #20
MODEM_DCLK
#22 MODEM_DIN
#21 MODEM_DOUT #20
MODEM_ANT0
#19 MODEM_ANT1 #18
CMU_CLK0 #5
PRS_CH3 #13
PRS_CH4 #5
PRS_CH5 #4
PRS_CH6 #16
ACMP0_O #22
ACMP1_O #22
GPIO_EM4WU4
BUSDY [ADC0:
APORT4YCH4
ACMP0:
APORT4YCH4
ACMP1:
APORT4YCH4]
11
PD13
BUSCY [ADC0:
APORT3YCH5
ACMP0:
APORT3YCH5
ACMP1:
APORT3YCH5
IDAC0:
APORT1YCH5]
BUSDX [ADC0:
APORT4XCH5
ACMP0:
APORT4XCH5
ACMP1:
APORT4XCH5]
12
PD14
BUSCX [ADC0:
APORT3XCH6
ACMP0:
APORT3XCH6
ACMP1:
APORT3XCH6
IDAC0:
APORT1XCH6]
BUSDY [ADC0:
APORT4YCH6
ACMP0:
APORT4YCH6
ACMP1:
APORT4YCH6]
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Pin Alternate Functionality / Description
Pin #
13
Pin Name
Analog
Timers
Communication
Radio
Other
PD15
BUSCY [ADC0:
APORT3YCH7
ACMP0:
APORT3YCH7
ACMP1:
APORT3YCH7
IDAC0:
APORT1YCH7]
TIM0_CC0 #23
TIM0_CC1 #22
TIM0_CC2 #21
TIM0_CDTI0 #20
TIM0_CDTI1 #19
TIM0_CDTI2 #18
TIM1_CC0 #23
TIM1_CC1 #22
TIM1_CC2 #21
TIM1_CC3 #20 LETIM0_OUT0 #23
LETIM0_OUT1 #22
PCNT0_S0IN #23
PCNT0_S1IN #22
US0_TX #23
US0_RX #22
US0_CLK #21
US0_CS #20
US0_CTS #19
US0_RTS #18
US1_TX #23
US1_RX #22
US1_CLK #21
US1_CS #20
US1_CTS #19
US1_RTS #18
LEU0_TX #23
LEU0_RX #22
I2C0_SDA #23
I2C0_SCL #22
FRC_DCLK #23
FRC_DOUT #22
FRC_DFRAME #21
MODEM_DCLK
#23 MODEM_DIN
#22 MODEM_DOUT #21
MODEM_ANT0
#20 MODEM_ANT1 #19
CMU_CLK1 #5
PRS_CH3 #14
PRS_CH4 #6
PRS_CH5 #5
PRS_CH6 #17
ACMP0_O #23
ACMP1_O #23
DBG_SWO #2
TIM0_CC0 #0
TIM0_CC1 #31
TIM0_CC2 #30
TIM0_CDTI0 #29
TIM0_CDTI1 #28
TIM0_CDTI2 #27
TIM1_CC0 #0
TIM1_CC1 #31
TIM1_CC2 #30
TIM1_CC3 #29 LETIM0_OUT0 #0 LETIM0_OUT1 #31
PCNT0_S0IN #0
PCNT0_S1IN #31
US0_TX #0
US0_RX #31
US0_CLK #30
US0_CS #29
US0_CTS #28
US0_RTS #27
US1_TX #0
US1_RX #31
US1_CLK #30
US1_CS #29
US1_CTS #28
US1_RTS #27
LEU0_TX #0
LEU0_RX #31
I2C0_SDA #0
I2C0_SCL #31
FRC_DCLK #0
FRC_DOUT #31
FRC_DFRAME #30
MODEM_DCLK #0
MODEM_DIN #31
MODEM_DOUT
#30 MODEM_ANT0 #29
MODEM_ANT1
#28
CMU_CLK1 #0
PRS_CH6 #0
PRS_CH7 #10
PRS_CH8 #9
PRS_CH9 #8
ACMP0_O #0
ACMP1_O #0
TIM0_CC0 #1
TIM0_CC1 #0
TIM0_CC2 #31
TIM0_CDTI0 #30
TIM0_CDTI1 #29
TIM0_CDTI2 #28
TIM1_CC0 #1
TIM1_CC1 #0
TIM1_CC2 #31
TIM1_CC3 #30 LETIM0_OUT0 #1 LETIM0_OUT1 #0
PCNT0_S0IN #1
PCNT0_S1IN #0
US0_TX #1
US0_RX #0
US0_CLK #31
US0_CS #30
US0_CTS #29
US0_RTS #28
US1_TX #1
US1_RX #0
US1_CLK #31
US1_CS #30
US1_CTS #29
US1_RTS #28
LEU0_TX #1
LEU0_RX #0
I2C0_SDA #1
I2C0_SCL #0
FRC_DCLK #1
FRC_DOUT #0
FRC_DFRAME #31
MODEM_DCLK #1
MODEM_DIN #0
MODEM_DOUT
#31 MODEM_ANT0 #30
MODEM_ANT1
#29
CMU_CLK0 #0
PRS_CH6 #1
PRS_CH7 #0
PRS_CH8 #10
PRS_CH9 #9
ACMP0_O #1
ACMP1_O #1
BUSDX [ADC0:
APORT4XCH7
ACMP0:
APORT4XCH7
ACMP1:
APORT4XCH7]
ADC0_EXTN
14
PA0
BUSCX [ADC0:
APORT3XCH8
ACMP0:
APORT3XCH8
ACMP1:
APORT3XCH8
IDAC0:
APORT1XCH8]
BUSDY [ADC0:
APORT4YCH8
ACMP0:
APORT4YCH8
ACMP1:
APORT4YCH8]
ADC0_EXTP
15
PA1
BUSCY [ADC0:
APORT3YCH9
ACMP0:
APORT3YCH9
ACMP1:
APORT3YCH9
IDAC0:
APORT1YCH9]
BUSDX [ADC0:
APORT4XCH9
ACMP0:
APORT4XCH9
ACMP1:
APORT4XCH9]
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Pin Alternate Functionality / Description
Pin #
16
Pin Name
Analog
Timers
Communication
Radio
Other
PA2
BUSCX [ADC0:
APORT3XCH10
ACMP0:
APORT3XCH10
ACMP1:
APORT3XCH10
IDAC0:
APORT1XCH10]
TIM0_CC0 #2
TIM0_CC1 #1
TIM0_CC2 #0
TIM0_CDTI0 #31
TIM0_CDTI1 #30
TIM0_CDTI2 #29
TIM1_CC0 #2
TIM1_CC1 #1
TIM1_CC2 #0
TIM1_CC3 #31 LETIM0_OUT0 #2 LETIM0_OUT1 #1
PCNT0_S0IN #2
PCNT0_S1IN #1
US0_TX #2
US0_RX #1
US0_CLK #0
US0_CS #31
US0_CTS #30
US0_RTS #29
US1_TX #2
US1_RX #1
US1_CLK #0
US1_CS #31
US1_CTS #30
US1_RTS #29
LEU0_TX #2
LEU0_RX #1
I2C0_SDA #2
I2C0_SCL #1
FRC_DCLK #2
FRC_DOUT #1
FRC_DFRAME #0
MODEM_DCLK #2
MODEM_DIN #1
MODEM_DOUT #0
MODEM_ANT0
#31 MODEM_ANT1 #30
PRS_CH6 #2
PRS_CH7 #1
PRS_CH8 #0
PRS_CH9 #10
ACMP0_O #2
ACMP1_O #2
TIM0_CC0 #3
TIM0_CC1 #2
TIM0_CC2 #1
TIM0_CDTI0 #0
TIM0_CDTI1 #31
TIM0_CDTI2 #30
TIM1_CC0 #3
TIM1_CC1 #2
TIM1_CC2 #1
TIM1_CC3 #0 LETIM0_OUT0 #3 LETIM0_OUT1 #2
PCNT0_S0IN #3
PCNT0_S1IN #2
US0_TX #3
US0_RX #2
US0_CLK #1
US0_CS #0
US0_CTS #31
US0_RTS #30
US1_TX #3
US1_RX #2
US1_CLK #1
US1_CS #0
US1_CTS #31
US1_RTS #30
LEU0_TX #3
LEU0_RX #2
I2C0_SDA #3
I2C0_SCL #2
FRC_DCLK #3
FRC_DOUT #2
FRC_DFRAME #1
MODEM_DCLK #3
MODEM_DIN #2
MODEM_DOUT #1
MODEM_ANT0 #0
MODEM_ANT1
#31
PRS_CH6 #3
PRS_CH7 #2
PRS_CH8 #1
PRS_CH9 #0
ACMP0_O #3
ACMP1_O #3
GPIO_EM4WU8
TIM0_CC0 #4
TIM0_CC1 #3
TIM0_CC2 #2
TIM0_CDTI0 #1
TIM0_CDTI1 #0
TIM0_CDTI2 #31
TIM1_CC0 #4
TIM1_CC1 #3
TIM1_CC2 #2
TIM1_CC3 #1 LETIM0_OUT0 #4 LETIM0_OUT1 #3
PCNT0_S0IN #4
PCNT0_S1IN #3
US0_TX #4
US0_RX #3
US0_CLK #2
US0_CS #1
US0_CTS #0
US0_RTS #31
US1_TX #4
US1_RX #3
US1_CLK #2
US1_CS #1
US1_CTS #0
US1_RTS #31
LEU0_TX #4
LEU0_RX #3
I2C0_SDA #4
I2C0_SCL #3
FRC_DCLK #4
FRC_DOUT #3
FRC_DFRAME #2
MODEM_DCLK #4
MODEM_DIN #3
MODEM_DOUT #2
MODEM_ANT0 #1
MODEM_ANT1 #0
PRS_CH6 #4
PRS_CH7 #3
PRS_CH8 #2
PRS_CH9 #1
ACMP0_O #4
ACMP1_O #4
BUSDY [ADC0:
APORT4YCH10
ACMP0:
APORT4YCH10
ACMP1:
APORT4YCH10]
17
PA3
BUSCY [ADC0:
APORT3YCH11
ACMP0:
APORT3YCH11
ACMP1:
APORT3YCH11
IDAC0:
APORT1YCH11]
BUSDX [ADC0:
APORT4XCH11
ACMP0:
APORT4XCH11
ACMP1:
APORT4XCH11]
18
PA4
BUSCX [ADC0:
APORT3XCH12
ACMP0:
APORT3XCH12
ACMP1:
APORT3XCH12
IDAC0:
APORT1XCH12]
BUSDY [ADC0:
APORT4YCH12
ACMP0:
APORT4YCH12
ACMP1:
APORT4YCH12]
silabs.com | Building a more connected world.
Rev. 1.5 | 56
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Pin Alternate Functionality / Description
Pin #
19
Pin Name
Analog
Timers
Communication
Radio
Other
PA5
BUSCY [ADC0:
APORT3YCH13
ACMP0:
APORT3YCH13
ACMP1:
APORT3YCH13
IDAC0:
APORT1YCH13]
TIM0_CC0 #5
TIM0_CC1 #4
TIM0_CC2 #3
TIM0_CDTI0 #2
TIM0_CDTI1 #1
TIM0_CDTI2 #0
TIM1_CC0 #5
TIM1_CC1 #4
TIM1_CC2 #3
TIM1_CC3 #2 LETIM0_OUT0 #5 LETIM0_OUT1 #4
PCNT0_S0IN #5
PCNT0_S1IN #4
US0_TX #5
US0_RX #4
US0_CLK #3
US0_CS #2
US0_CTS #1
US0_RTS #0
US1_TX #5
US1_RX #4
US1_CLK #3
US1_CS #2
US1_CTS #1
US1_RTS #0
LEU0_TX #5
LEU0_RX #4
I2C0_SDA #5
I2C0_SCL #4
FRC_DCLK #5
FRC_DOUT #4
FRC_DFRAME #3
MODEM_DCLK #5
MODEM_DIN #4
MODEM_DOUT #3
MODEM_ANT0 #2
MODEM_ANT1 #1
PRS_CH6 #5
PRS_CH7 #4
PRS_CH8 #3
PRS_CH9 #2
ACMP0_O #5
ACMP1_O #5
TIM0_CC0 #6
TIM0_CC1 #5
TIM0_CC2 #4
TIM0_CDTI0 #3
TIM0_CDTI1 #2
TIM0_CDTI2 #1
TIM1_CC0 #6
TIM1_CC1 #5
TIM1_CC2 #4
TIM1_CC3 #3 LETIM0_OUT0 #6 LETIM0_OUT1 #5
PCNT0_S0IN #6
PCNT0_S1IN #5
US0_TX #6
US0_RX #5
US0_CLK #4
US0_CS #3
US0_CTS #2
US0_RTS #1
US1_TX #6
US1_RX #5
US1_CLK #4
US1_CS #3
US1_CTS #2
US1_RTS #1
LEU0_TX #6
LEU0_RX #5
I2C0_SDA #6
I2C0_SCL #5
FRC_DCLK #6
FRC_DOUT #5
FRC_DFRAME #4
MODEM_DCLK #6
MODEM_DIN #5
MODEM_DOUT #4
MODEM_ANT0 #3
MODEM_ANT1 #2
PRS_CH6 #6
PRS_CH7 #5
PRS_CH8 #4
PRS_CH9 #3
ACMP0_O #6
ACMP1_O #6
TIM0_CC0 #7
TIM0_CC1 #6
TIM0_CC2 #5
TIM0_CDTI0 #4
TIM0_CDTI1 #3
TIM0_CDTI2 #2
TIM1_CC0 #7
TIM1_CC1 #6
TIM1_CC2 #5
TIM1_CC3 #4 LETIM0_OUT0 #7 LETIM0_OUT1 #6
PCNT0_S0IN #7
PCNT0_S1IN #6
US0_TX #7
US0_RX #6
US0_CLK #5
US0_CS #4
US0_CTS #3
US0_RTS #2
US1_TX #7
US1_RX #6
US1_CLK #5
US1_CS #4
US1_CTS #3
US1_RTS #2
LEU0_TX #7
LEU0_RX #6
I2C0_SDA #7
I2C0_SCL #6
FRC_DCLK #7
FRC_DOUT #6
FRC_DFRAME #5
MODEM_DCLK #7
MODEM_DIN #6
MODEM_DOUT #5
MODEM_ANT0 #4
MODEM_ANT1 #3
PRS_CH6 #7
PRS_CH7 #6
PRS_CH8 #5
PRS_CH9 #4
ACMP0_O #7
ACMP1_O #7
BUSDX [ADC0:
APORT4XCH13
ACMP0:
APORT4XCH13
ACMP1:
APORT4XCH13]
20
PB11
BUSCY [ADC0:
APORT3YCH27
ACMP0:
APORT3YCH27
ACMP1:
APORT3YCH27
IDAC0:
APORT1YCH27]
BUSDX [ADC0:
APORT4XCH27
ACMP0:
APORT4XCH27
ACMP1:
APORT4XCH27]
21
PB12
BUSCX [ADC0:
APORT3XCH28
ACMP0:
APORT3XCH28
ACMP1:
APORT3XCH28
IDAC0:
APORT1XCH28]
BUSDY [ADC0:
APORT4YCH28
ACMP0:
APORT4YCH28
ACMP1:
APORT4YCH28]
silabs.com | Building a more connected world.
Rev. 1.5 | 57
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Pin Alternate Functionality / Description
Pin #
22
Pin Name
Analog
Timers
Communication
Radio
Other
PB13
BUSCY [ADC0:
APORT3YCH29
ACMP0:
APORT3YCH29
ACMP1:
APORT3YCH29
IDAC0:
APORT1YCH29]
TIM0_CC0 #8
TIM0_CC1 #7
TIM0_CC2 #6
TIM0_CDTI0 #5
TIM0_CDTI1 #4
TIM0_CDTI2 #3
TIM1_CC0 #8
TIM1_CC1 #7
TIM1_CC2 #6
TIM1_CC3 #5 LETIM0_OUT0 #8 LETIM0_OUT1 #7
PCNT0_S0IN #8
PCNT0_S1IN #7
US0_TX #8
US0_RX #7
US0_CLK #6
US0_CS #5
US0_CTS #4
US0_RTS #3
US1_TX #8
US1_RX #7
US1_CLK #6
US1_CS #5
US1_CTS #4
US1_RTS #3
LEU0_TX #8
LEU0_RX #7
I2C0_SDA #8
I2C0_SCL #7
FRC_DCLK #8
FRC_DOUT #7
FRC_DFRAME #6
MODEM_DCLK #8
MODEM_DIN #7
MODEM_DOUT #6
MODEM_ANT0 #5
MODEM_ANT1 #4
PRS_CH6 #8
PRS_CH7 #7
PRS_CH8 #6
PRS_CH9 #5
ACMP0_O #8
ACMP1_O #8
DBG_SWO #1
GPIO_EM4WU9
TIM0_CC0 #11
TIM0_CC1 #10
TIM0_CC2 #9
TIM0_CDTI0 #8
TIM0_CDTI1 #7
TIM0_CDTI2 #6
TIM1_CC0 #11
TIM1_CC1 #10
TIM1_CC2 #9
TIM1_CC3 #8 LETIM0_OUT0 #11
LETIM0_OUT1 #10
PCNT0_S0IN #11
PCNT0_S1IN #10
US0_TX #11
US0_RX #10
US0_CLK #9
US0_CS #8
US0_CTS #7
US0_RTS #6
US1_TX #11
US1_RX #10
US1_CLK #9
US1_CS #8
US1_CTS #7
US1_RTS #6
LEU0_TX #11
LEU0_RX #10
I2C0_SDA #11
I2C0_SCL #10
FRC_DCLK #11
FRC_DOUT #10
FRC_DFRAME #9
MODEM_DCLK
#11 MODEM_DIN
#10 MODEM_DOUT #9
MODEM_ANT0 #8
MODEM_ANT1 #7
CMU_CLK0 #2
PRS_CH0 #8
PRS_CH9 #11
PRS_CH10 #0
PRS_CH11 #5
ACMP0_O #11
ACMP1_O #11
TIM0_CC0 #12
TIM0_CC1 #11
TIM0_CC2 #10
TIM0_CDTI0 #9
TIM0_CDTI1 #8
TIM0_CDTI2 #7
TIM1_CC0 #12
TIM1_CC1 #11
TIM1_CC2 #10
TIM1_CC3 #9 LETIM0_OUT0 #12
LETIM0_OUT1 #11
PCNT0_S0IN #12
PCNT0_S1IN #11
US0_TX #12
US0_RX #11
US0_CLK #10
US0_CS #9
US0_CTS #8
US0_RTS #7
US1_TX #12
US1_RX #11
US1_CLK #10
US1_CS #9
US1_CTS #8
US1_RTS #7
LEU0_TX #12
LEU0_RX #11
I2C0_SDA #12
I2C0_SCL #11
FRC_DCLK #12
FRC_DOUT #11
FRC_DFRAME #10
MODEM_DCLK
#12 MODEM_DIN
#11 MODEM_DOUT #10
MODEM_ANT0 #9
MODEM_ANT1 #8
CMU_CLK1 #2
PRS_CH0 #9
PRS_CH9 #12
PRS_CH10 #1
PRS_CH11 #0
ACMP0_O #12
ACMP1_O #12
BUSDX [ADC0:
APORT4XCH29
ACMP0:
APORT4XCH29
ACMP1:
APORT4XCH29]
33
34
PC6
PC7
BUSAX [ADC0:
APORT1XCH6
ACMP0:
APORT1XCH6
ACMP1:
APORT1XCH6]
BUSBY [ADC0:
APORT2YCH6
ACMP0:
APORT2YCH6
ACMP1:
APORT2YCH6]
BUSAY [ADC0:
APORT1YCH7
ACMP0:
APORT1YCH7
ACMP1:
APORT1YCH7]
BUSBX [ADC0:
APORT2XCH7
ACMP0:
APORT2XCH7
ACMP1:
APORT2XCH7]
silabs.com | Building a more connected world.
Rev. 1.5 | 58
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Pin Alternate Functionality / Description
Pin #
35
36
37
Pin Name
PC8
PC9
PC10
Analog
BUSAX [ADC0:
APORT1XCH8
ACMP0:
APORT1XCH8
ACMP1:
APORT1XCH8]
BUSBY [ADC0:
APORT2YCH8
ACMP0:
APORT2YCH8
ACMP1:
APORT2YCH8]
BUSAY [ADC0:
APORT1YCH9
ACMP0:
APORT1YCH9
ACMP1:
APORT1YCH9]
BUSBX [ADC0:
APORT2XCH9
ACMP0:
APORT2XCH9
ACMP1:
APORT2XCH9]
BUSAX [ADC0:
APORT1XCH10
ACMP0:
APORT1XCH10
ACMP1:
APORT1XCH10]
BUSBY [ADC0:
APORT2YCH10
ACMP0:
APORT2YCH10
ACMP1:
APORT2YCH10]
silabs.com | Building a more connected world.
Timers
Communication
Radio
Other
TIM0_CC0 #13
TIM0_CC1 #12
TIM0_CC2 #11
TIM0_CDTI0 #10
TIM0_CDTI1 #9
TIM0_CDTI2 #8
TIM1_CC0 #13
TIM1_CC1 #12
TIM1_CC2 #11
TIM1_CC3 #10 LETIM0_OUT0 #13
LETIM0_OUT1 #12
PCNT0_S0IN #13
PCNT0_S1IN #12
US0_TX #13
US0_RX #12
US0_CLK #11
US0_CS #10
US0_CTS #9
US0_RTS #8
US1_TX #13
US1_RX #12
US1_CLK #11
US1_CS #10
US1_CTS #9
US1_RTS #8
LEU0_TX #13
LEU0_RX #12
I2C0_SDA #13
I2C0_SCL #12
FRC_DCLK #13
FRC_DOUT #12
FRC_DFRAME #11
MODEM_DCLK
#13 MODEM_DIN
#12 MODEM_DOUT #11
MODEM_ANT0
#10 MODEM_ANT1 #9
PRS_CH0 #10
PRS_CH9 #13
PRS_CH10 #2
PRS_CH11 #1
ACMP0_O #13
ACMP1_O #13
TIM0_CC0 #14
TIM0_CC1 #13
TIM0_CC2 #12
TIM0_CDTI0 #11
TIM0_CDTI1 #10
TIM0_CDTI2 #9
TIM1_CC0 #14
TIM1_CC1 #13
TIM1_CC2 #12
TIM1_CC3 #11 LETIM0_OUT0 #14
LETIM0_OUT1 #13
PCNT0_S0IN #14
PCNT0_S1IN #13
US0_TX #14
US0_RX #13
US0_CLK #12
US0_CS #11
US0_CTS #10
US0_RTS #9
US1_TX #14
US1_RX #13
US1_CLK #12
US1_CS #11
US1_CTS #10
US1_RTS #9
LEU0_TX #14
LEU0_RX #13
I2C0_SDA #14
I2C0_SCL #13
FRC_DCLK #14
FRC_DOUT #13
FRC_DFRAME #12
MODEM_DCLK
#14 MODEM_DIN
#13 MODEM_DOUT #12
MODEM_ANT0
#11 MODEM_ANT1 #10
PRS_CH0 #11
PRS_CH9 #14
PRS_CH10 #3
PRS_CH11 #2
ACMP0_O #14
ACMP1_O #14
TIM0_CC0 #15
TIM0_CC1 #14
TIM0_CC2 #13
TIM0_CDTI0 #12
TIM0_CDTI1 #11
TIM0_CDTI2 #10
TIM1_CC0 #15
TIM1_CC1 #14
TIM1_CC2 #13
TIM1_CC3 #12 LETIM0_OUT0 #15
LETIM0_OUT1 #14
PCNT0_S0IN #15
PCNT0_S1IN #14
US0_TX #15
US0_RX #14
US0_CLK #13
US0_CS #12
US0_CTS #11
US0_RTS #10
US1_TX #15
US1_RX #14
US1_CLK #13
US1_CS #12
US1_CTS #11
US1_RTS #10
LEU0_TX #15
LEU0_RX #14
I2C0_SDA #15
I2C0_SCL #14
FRC_DCLK #15
FRC_DOUT #14
FRC_DFRAME #13
MODEM_DCLK
#15 MODEM_DIN
#14 MODEM_DOUT #13
MODEM_ANT0
#12 MODEM_ANT1 #11
CMU_CLK1 #3
PRS_CH0 #12
PRS_CH9 #15
PRS_CH10 #4
PRS_CH11 #3
ACMP0_O #15
ACMP1_O #15
GPIO_EM4WU12
Rev. 1.5 | 59
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Pin Alternate Functionality / Description
Pin #
38
39
40
Pin Name
PC11
PF0
PF1
Analog
BUSAY [ADC0:
APORT1YCH11
ACMP0:
APORT1YCH11
ACMP1:
APORT1YCH11]
BUSBX [ADC0:
APORT2XCH11
ACMP0:
APORT2XCH11
ACMP1:
APORT2XCH11]
BUSAX [ADC0:
APORT1XCH16
ACMP0:
APORT1XCH16
ACMP1:
APORT1XCH16]
BUSBY [ADC0:
APORT2YCH16
ACMP0:
APORT2YCH16
ACMP1:
APORT2YCH16]
BUSAY [ADC0:
APORT1YCH17
ACMP0:
APORT1YCH17
ACMP1:
APORT1YCH17]
BUSBX [ADC0:
APORT2XCH17
ACMP0:
APORT2XCH17
ACMP1:
APORT2XCH17]
silabs.com | Building a more connected world.
Timers
Communication
Radio
Other
TIM0_CC0 #16
TIM0_CC1 #15
TIM0_CC2 #14
TIM0_CDTI0 #13
TIM0_CDTI1 #12
TIM0_CDTI2 #11
TIM1_CC0 #16
TIM1_CC1 #15
TIM1_CC2 #14
TIM1_CC3 #13 LETIM0_OUT0 #16
LETIM0_OUT1 #15
PCNT0_S0IN #16
PCNT0_S1IN #15
US0_TX #16
US0_RX #15
US0_CLK #14
US0_CS #13
US0_CTS #12
US0_RTS #11
US1_TX #16
US1_RX #15
US1_CLK #14
US1_CS #13
US1_CTS #12
US1_RTS #11
LEU0_TX #16
LEU0_RX #15
I2C0_SDA #16
I2C0_SCL #15
FRC_DCLK #16
FRC_DOUT #15
FRC_DFRAME #14
MODEM_DCLK
#16 MODEM_DIN
#15 MODEM_DOUT #14
MODEM_ANT0
#13 MODEM_ANT1 #12
CMU_CLK0 #3
PRS_CH0 #13
PRS_CH9 #16
PRS_CH10 #5
PRS_CH11 #4
ACMP0_O #16
ACMP1_O #16
DBG_SWO #3
TIM0_CC0 #24
TIM0_CC1 #23
TIM0_CC2 #22
TIM0_CDTI0 #21
TIM0_CDTI1 #20
TIM0_CDTI2 #19
TIM1_CC0 #24
TIM1_CC1 #23
TIM1_CC2 #22
TIM1_CC3 #21 LETIM0_OUT0 #24
LETIM0_OUT1 #23
PCNT0_S0IN #24
PCNT0_S1IN #23
US0_TX #24
US0_RX #23
US0_CLK #22
US0_CS #21
US0_CTS #20
US0_RTS #19
US1_TX #24
US1_RX #23
US1_CLK #22
US1_CS #21
US1_CTS #20
US1_RTS #19
LEU0_TX #24
LEU0_RX #23
I2C0_SDA #24
I2C0_SCL #23
FRC_DCLK #24
FRC_DOUT #23
FRC_DFRAME #22
MODEM_DCLK
#24 MODEM_DIN
#23 MODEM_DOUT #22
MODEM_ANT0
#21 MODEM_ANT1 #20
PRS_CH0 #0
PRS_CH1 #7
PRS_CH2 #6
PRS_CH3 #5
ACMP0_O #24
ACMP1_O #24
DBG_SWCLKTCK
#0
TIM0_CC0 #25
TIM0_CC1 #24
TIM0_CC2 #23
TIM0_CDTI0 #22
TIM0_CDTI1 #21
TIM0_CDTI2 #20
TIM1_CC0 #25
TIM1_CC1 #24
TIM1_CC2 #23
TIM1_CC3 #22 LETIM0_OUT0 #25
LETIM0_OUT1 #24
PCNT0_S0IN #25
PCNT0_S1IN #24
US0_TX #25
US0_RX #24
US0_CLK #23
US0_CS #22
US0_CTS #21
US0_RTS #20
US1_TX #25
US1_RX #24
US1_CLK #23
US1_CS #22
US1_CTS #21
US1_RTS #20
LEU0_TX #25
LEU0_RX #24
I2C0_SDA #25
I2C0_SCL #24
FRC_DCLK #25
FRC_DOUT #24
FRC_DFRAME #23
MODEM_DCLK
#25 MODEM_DIN
#24 MODEM_DOUT #23
MODEM_ANT0
#22 MODEM_ANT1 #21
PRS_CH0 #1
PRS_CH1 #0
PRS_CH2 #7
PRS_CH3 #6
ACMP0_O #25
ACMP1_O #25
DBG_SWDIOTMS
#0
Rev. 1.5 | 60
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Pin Alternate Functionality / Description
Pin #
41
42
43
Pin Name
PF2
PF3
PF4
Analog
BUSAX [ADC0:
APORT1XCH18
ACMP0:
APORT1XCH18
ACMP1:
APORT1XCH18]
BUSBY [ADC0:
APORT2YCH18
ACMP0:
APORT2YCH18
ACMP1:
APORT2YCH18]
BUSAY [ADC0:
APORT1YCH19
ACMP0:
APORT1YCH19
ACMP1:
APORT1YCH19]
BUSBX [ADC0:
APORT2XCH19
ACMP0:
APORT2XCH19
ACMP1:
APORT2XCH19]
BUSAX [ADC0:
APORT1XCH20
ACMP0:
APORT1XCH20
ACMP1:
APORT1XCH20]
BUSBY [ADC0:
APORT2YCH20
ACMP0:
APORT2YCH20
ACMP1:
APORT2YCH20]
silabs.com | Building a more connected world.
Timers
Communication
Radio
Other
TIM0_CC0 #26
TIM0_CC1 #25
TIM0_CC2 #24
TIM0_CDTI0 #23
TIM0_CDTI1 #22
TIM0_CDTI2 #21
TIM1_CC0 #26
TIM1_CC1 #25
TIM1_CC2 #24
TIM1_CC3 #23 LETIM0_OUT0 #26
LETIM0_OUT1 #25
PCNT0_S0IN #26
PCNT0_S1IN #25
US0_TX #26
US0_RX #25
US0_CLK #24
US0_CS #23
US0_CTS #22
US0_RTS #21
US1_TX #26
US1_RX #25
US1_CLK #24
US1_CS #23
US1_CTS #22
US1_RTS #21
LEU0_TX #26
LEU0_RX #25
I2C0_SDA #26
I2C0_SCL #25
FRC_DCLK #26
FRC_DOUT #25
FRC_DFRAME #24
MODEM_DCLK
#26 MODEM_DIN
#25 MODEM_DOUT #24
MODEM_ANT0
#23 MODEM_ANT1 #22
CMU_CLK0 #6
PRS_CH0 #2
PRS_CH1 #1
PRS_CH2 #0
PRS_CH3 #7
ACMP0_O #26
ACMP1_O #26
DBG_TDO #0
DBG_SWO #0
GPIO_EM4WU0
TIM0_CC0 #27
TIM0_CC1 #26
TIM0_CC2 #25
TIM0_CDTI0 #24
TIM0_CDTI1 #23
TIM0_CDTI2 #22
TIM1_CC0 #27
TIM1_CC1 #26
TIM1_CC2 #25
TIM1_CC3 #24 LETIM0_OUT0 #27
LETIM0_OUT1 #26
PCNT0_S0IN #27
PCNT0_S1IN #26
US0_TX #27
US0_RX #26
US0_CLK #25
US0_CS #24
US0_CTS #23
US0_RTS #22
US1_TX #27
US1_RX #26
US1_CLK #25
US1_CS #24
US1_CTS #23
US1_RTS #22
LEU0_TX #27
LEU0_RX #26
I2C0_SDA #27
I2C0_SCL #26
FRC_DCLK #27
FRC_DOUT #26
FRC_DFRAME #25
MODEM_DCLK
#27 MODEM_DIN
#26 MODEM_DOUT #25
MODEM_ANT0
#24 MODEM_ANT1 #23
CMU_CLK1 #6
PRS_CH0 #3
PRS_CH1 #2
PRS_CH2 #1
PRS_CH3 #0
ACMP0_O #27
ACMP1_O #27
DBG_TDI #0
TIM0_CC0 #28
TIM0_CC1 #27
TIM0_CC2 #26
TIM0_CDTI0 #25
TIM0_CDTI1 #24
TIM0_CDTI2 #23
TIM1_CC0 #28
TIM1_CC1 #27
TIM1_CC2 #26
TIM1_CC3 #25 LETIM0_OUT0 #28
LETIM0_OUT1 #27
PCNT0_S0IN #28
PCNT0_S1IN #27
US0_TX #28
US0_RX #27
US0_CLK #26
US0_CS #25
US0_CTS #24
US0_RTS #23
US1_TX #28
US1_RX #27
US1_CLK #26
US1_CS #25
US1_CTS #24
US1_RTS #23
LEU0_TX #28
LEU0_RX #27
I2C0_SDA #28
I2C0_SCL #27
FRC_DCLK #28
FRC_DOUT #27
FRC_DFRAME #26
MODEM_DCLK
#28 MODEM_DIN
#27 MODEM_DOUT #26
MODEM_ANT0
#25 MODEM_ANT1 #24
PRS_CH0 #4
PRS_CH1 #3
PRS_CH2 #2
PRS_CH3 #1
ACMP0_O #28
ACMP1_O #28
Rev. 1.5 | 61
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Pin Alternate Functionality / Description
Pin #
44
45
46
Pin Name
PF5
PF6
PF7
Analog
BUSAY [ADC0:
APORT1YCH21
ACMP0:
APORT1YCH21
ACMP1:
APORT1YCH21]
BUSBX [ADC0:
APORT2XCH21
ACMP0:
APORT2XCH21
ACMP1:
APORT2XCH21]
BUSAX [ADC0:
APORT1XCH22
ACMP0:
APORT1XCH22
ACMP1:
APORT1XCH22]
BUSBY [ADC0:
APORT2YCH22
ACMP0:
APORT2YCH22
ACMP1:
APORT2YCH22]
BUSAY [ADC0:
APORT1YCH23
ACMP0:
APORT1YCH23
ACMP1:
APORT1YCH23]
BUSBX [ADC0:
APORT2XCH23
ACMP0:
APORT2XCH23
ACMP1:
APORT2XCH23]
silabs.com | Building a more connected world.
Timers
Communication
Radio
Other
TIM0_CC0 #29
TIM0_CC1 #28
TIM0_CC2 #27
TIM0_CDTI0 #26
TIM0_CDTI1 #25
TIM0_CDTI2 #24
TIM1_CC0 #29
TIM1_CC1 #28
TIM1_CC2 #27
TIM1_CC3 #26 LETIM0_OUT0 #29
LETIM0_OUT1 #28
PCNT0_S0IN #29
PCNT0_S1IN #28
US0_TX #29
US0_RX #28
US0_CLK #27
US0_CS #26
US0_CTS #25
US0_RTS #24
US1_TX #29
US1_RX #28
US1_CLK #27
US1_CS #26
US1_CTS #25
US1_RTS #24
LEU0_TX #29
LEU0_RX #28
I2C0_SDA #29
I2C0_SCL #28
FRC_DCLK #29
FRC_DOUT #28
FRC_DFRAME #27
MODEM_DCLK
#29 MODEM_DIN
#28 MODEM_DOUT #27
MODEM_ANT0
#26 MODEM_ANT1 #25
PRS_CH0 #5
PRS_CH1 #4
PRS_CH2 #3
PRS_CH3 #2
ACMP0_O #29
ACMP1_O #29
TIM0_CC0 #30
TIM0_CC1 #29
TIM0_CC2 #28
TIM0_CDTI0 #27
TIM0_CDTI1 #26
TIM0_CDTI2 #25
TIM1_CC0 #30
TIM1_CC1 #29
TIM1_CC2 #28
TIM1_CC3 #27 LETIM0_OUT0 #30
LETIM0_OUT1 #29
PCNT0_S0IN #30
PCNT0_S1IN #29
US0_TX #30
US0_RX #29
US0_CLK #28
US0_CS #27
US0_CTS #26
US0_RTS #25
US1_TX #30
US1_RX #29
US1_CLK #28
US1_CS #27
US1_CTS #26
US1_RTS #25
LEU0_TX #30
LEU0_RX #29
I2C0_SDA #30
I2C0_SCL #29
FRC_DCLK #30
FRC_DOUT #29
FRC_DFRAME #28
MODEM_DCLK
#30 MODEM_DIN
#29 MODEM_DOUT #28
MODEM_ANT0
#27 MODEM_ANT1 #26
CMU_CLK1 #7
PRS_CH0 #6
PRS_CH1 #5
PRS_CH2 #4
PRS_CH3 #3
ACMP0_O #30
ACMP1_O #30
TIM0_CC0 #31
TIM0_CC1 #30
TIM0_CC2 #29
TIM0_CDTI0 #28
TIM0_CDTI1 #27
TIM0_CDTI2 #26
TIM1_CC0 #31
TIM1_CC1 #30
TIM1_CC2 #29
TIM1_CC3 #28 LETIM0_OUT0 #31
LETIM0_OUT1 #30
PCNT0_S0IN #31
PCNT0_S1IN #30
US0_TX #31
US0_RX #30
US0_CLK #29
US0_CS #28
US0_CTS #27
US0_RTS #26
US1_TX #31
US1_RX #30
US1_CLK #29
US1_CS #28
US1_CTS #27
US1_RTS #26
LEU0_TX #31
LEU0_RX #30
I2C0_SDA #31
I2C0_SCL #30
FRC_DCLK #31
FRC_DOUT #30
FRC_DFRAME #29
MODEM_DCLK
#31 MODEM_DIN
#30 MODEM_DOUT #29
MODEM_ANT0
#28 MODEM_ANT1 #27
CMU_CLK0 #7
PRS_CH0 #7
PRS_CH1 #6
PRS_CH2 #5
PRS_CH3 #4
ACMP0_O #31
ACMP1_O #31
GPIO_EM4WU1
Rev. 1.5 | 62
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
7.1.1 GPIO Overview
The GPIO pins are organized as 16-bit ports indicated by letters A through F, and the individual pins on each port are indicated by a
number from 15 down to 0.
Table 7.2. GPIO Pinout
Port
Pin
15
Pin
14
Pin
13
Pin
12
Pin
11
Pin
10
Pin
9
Pin
8
Pin
7
Pin
6
Pin
5
Pin
4
Pin
3
Pin
2
Pin
1
Pin
0
Port A
-
-
-
-
-
-
-
-
-
-
PA5
(5V)
PA4
(5V)
PA3
(5V)
PA2
(5V)
PA1
PA0
-
-
-
-
-
-
-
-
-
-
-
PC11 PC10
(5V) (5V)
PC9
(5V)
PC8
(5V)
PC7
(5V)
PC6
(5V)
-
-
-
-
-
-
PD15 PD14 PD13 PD12 PD11 PD10
(5V) 2 (5V) 2 (5V) (5V) (5V) (5V)
PD9
(5V)
-
-
-
-
-
-
-
-
-
-
-
PF7
(5V)
PF6
(5V)
PF5
(5V)
PF4
(5V)
PF3
(5V)
PF2
(5V)
PF1
(5V)
PF0
(5V)
PB13 PB12 PB11
(5V) 2(5V) 2 (5V)
Port B
2
Port C
Port D
Port F
-
-
-
-
2
-
-
-
-
-
-
Note:
1. GPIO with 5V compatibility are indicated by (5V)
2. Pins PA2, PA3, PA4, PB11, PB12, PD13, PD14 and PD15 will not be 5V compatible on all future devices.
In order to preserve upgrade options with full hardware compatibility, do not use the pins listed in Note 2 with 5V domains.
silabs.com | Building a more connected world.
Rev. 1.5 | 63
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
7.2 Alternate Functionality Pinout
A wide selection of alternate functionality is available for multiplexing to various pins. The following table shows the name of the alternate functionality in the first column, followed by columns showing the possible LOCATION bitfield settings.
Note: Some functionality, such as analog interfaces, do not have alternate settings or a LOCATION bitfield. In these cases, the pinout
is shown in the column corresponding to LOCATION 0.
Table 7.3. Alternate functionality overview
Alternate
Functionality
LOCATION
0-3
4-7
8 - 11
12 - 15
16 - 19
20 - 23
24 - 27
28 - 31
Description
ACMP0_O
0: PA0
1: PA1
2: PA2
3: PA3
4: PA4
5: PA5
6: PB11
7: PB12
8: PB13
11: PC6
12: PC7
13: PC8
14: PC9
15: PC10
16: PC11
17: PD9
18: PD10
19: PD11
20: PD12
21: PD13
22: PD14
23: PD15
24: PF0
25: PF1
26: PF2
27: PF3
28: PF4
29: PF5
30: PF6
31: PF7
Analog comparator
ACMP0, digital output.
ACMP1_O
0: PA0
1: PA1
2: PA2
3: PA3
4: PA4
5: PA5
6: PB11
7: PB12
8: PB13
11: PC6
12: PC7
13: PC8
14: PC9
15: PC10
16: PC11
17: PD9
18: PD10
19: PD11
20: PD12
21: PD13
22: PD14
23: PD15
24: PF0
25: PF1
26: PF2
27: PF3
28: PF4
29: PF5
30: PF6
31: PF7
Analog comparator
ACMP1, digital output.
0: PA0
Analog to digital
converter ADC0 external reference input negative pin
ADC0_EXTP
0: PA1
Analog to digital
converter ADC0 external reference input positive pin
CMU_CLK0
0: PA1
2: PC6
3: PC11
4: PD9
5: PD14
6: PF2
7: PF7
Clock Management
Unit, clock output
number 0.
CMU_CLK1
0: PA0
2: PC7
3: PC10
4: PD10
5: PD15
6: PF3
7: PF6
Clock Management
Unit, clock output
number 1.
ADC0_EXTN
Debug-interface
Serial Wire clock
input and JTAG
Test Clock.
DBG_SWCLKTCK 0: PF0
DBG_SWDIOTMS 0: PF1
silabs.com | Building a more connected world.
Note that this function is enabled to
the pin out of reset,
and has a built-in
pull down.
Debug-interface
Serial Wire data input / output and
JTAG Test Mode
Select.
Note that this function is enabled to
the pin out of reset,
and has a built-in
pull up.
Rev. 1.5 | 64
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Alternate
Functionality
DBG_SWO
LOCATION
0-3
4-7
8 - 11
12 - 15
16 - 19
20 - 23
24 - 27
28 - 31
Description
Debug-interface
Serial Wire viewer
Output.
0: PF2
1: PB13
2: PD15
3: PC11
Note that this function is not enabled
after reset, and
must be enabled by
software to be
used.
Debug-interface
JTAG Test Data In.
DBG_TDI
Note that this function is enabled to
pin out of reset,
and has a built-in
pull up.
0: PF3
Debug-interface
JTAG Test Data
Out.
DBG_TDO
0: PF2
FRC_DCLK
0: PA0
1: PA1
2: PA2
3: PA3
4: PA4
5: PA5
6: PB11
7: PB12
FRC_DFRAME
0: PA2
1: PA3
2: PA4
3: PA5
4: PB11
5: PB12
6: PB13
FRC_DOUT
0: PA1
1: PA2
2: PA3
3: PA4
4: PA5
5: PB11
6: PB12
7: PB13
GPIO_EM4WU0
0: PF2
Pin can be used to
wake the system
up from EM4
GPIO_EM4WU1
0: PF7
Pin can be used to
wake the system
up from EM4
GPIO_EM4WU4
0: PD14
Pin can be used to
wake the system
up from EM4
GPIO_EM4WU8
0: PA3
Pin can be used to
wake the system
up from EM4
GPIO_EM4WU9
0: PB13
Pin can be used to
wake the system
up from EM4
Note that this function is enabled to
pin out of reset.
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8: PB13
11: PC6
9: PC6
10: PC7
11: PC8
10: PC6
11: PC7
12: PC7
13: PC8
14: PC9
15: PC10
16: PC11
18: PD10
19: PD11
20: PD12
21: PD13
22: PD14
23: PD15
24: PF0
25: PF1
26: PF2
27: PF3
28: PF4
29: PF5
30: PF6
31: PF7
Frame Controller,
Data Sniffer Clock.
12: PC9
13: PC10
14: PC11
16: PD10
17: PD11
18: PD12
19: PD13
20: PD14
21: PD15
22: PF0
23: PF1
24: PF2
25: PF3
26: PF4
27: PF5
28: PF6
29: PF7
30: PA0
31: PA1
Frame Controller,
Data Sniffer Frame
active
17: PD10
18: PD11
19:PD12
20: PD13
21: PD14
22: PD15
23: PF0
24: PF1
25: PF2
26: PF3
27: PF4
28: PF5
29: PF6
30: PF7
31: PA0
Frame Controller,
Data Sniffer Output.
12: PC8
13: PC9
14: PC10
15: PC11
Rev. 1.5 | 65
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Alternate
Functionality
LOCATION
0-3
4-7
8 - 11
12 - 15
16 - 19
20 - 23
24 - 27
28 - 31
Description
Pin can be used to
wake the system
up from EM4
GPIO_EM4WU12
0: PC10
I2C0_SCL
0: PA1
1: PA2
2: PA3
3: PA4
4: PA5
5: PB11
6: PB12
7: PB13
10: PC6
11: PC7
12: PC8
13: PC9
14: PC10
15: PC11
16: PD9
17: PD10
18: PD11
19: PD12
20: PD13
21: PD14
22: PD15
23: PF0
24: PF1
25: PF2
26: PF3
27: PF4
28: PF5
29: PF6
30: PF7
31: PA0
I2C0 Serial Clock
Line input / output.
I2C0_SDA
0: PA0
1: PA1
2: PA2
3: PA3
4: PA4
5: PA5
6: PB11
7: PB12
8: PB13
11: PC6
12: PC7
13: PC8
14: PC9
15: PC10
16: PC11
17: PD9
18: PD10
19: PD11
20: PD12
21: PD13
22: PD14
23: PD15
24: PF0
25: PF1
26: PF2
27: PF3
28: PF4
29: PF5
30: PF6
31: PF7
I2C0 Serial Data input / output.
LETIM0_OUT0
0: PA0
1: PA1
2: PA2
3: PA3
4: PA4
5: PA5
6: PB11
7: PB12
8: PB13
11: PC6
12: PC8
13: PC9
14: PC10
15: PC11
16: PC11
17: PD9
18: PD10
19: PD11
20: PD12
21: PD13
22: PD14
23: PD15
24: PF0
25: PF1
26: PF2
27: PF3
28: PF4
29: PF5
30: PF6
31: PF7
Low Energy Timer
LETIM0, output
channel 0.
LETIM0_OUT1
0: PA1
1: PA2
2: PA3
3: PA4
4: PA5
5: PB11
6: PB12
7: PB13
10: PC6
11: PC7
12: PC8
13: PC9
14: PC10
15: PC11
16: PD9
17: PD10
18: PD11
19: PD12
20: PD13
21: PD14
22: PD15
23: PF0
24: PF1
25: PF2
26: PF3
27: PF4
28: PF5
29: PF6
30: PF7
31: PA0
Low Energy Timer
LETIM0, output
channel 1.
LEU0_RX
0: PA1
1: PA2
2: PA3
3: PA4
4: PA5
5: PB11
6: PB12
7: PB13
10: PC6
11: PC7
12: PC8
13: PC9
14: PC10
15: PC11
16: PD9
17: PD10
18: PD11
19: PD12
20: PD13
21: PD14
22: PD15
23: PF0
24: PF1
25: PF2
26: PF3
27: PF4
28: PF5
29: PF6
30: PF7
31: PA0
LEUART0 Receive
input.
LEU0_TX
0: PA0
1: PA1
2: PA2
3: PA3
4: PA4
5: PA5
6: PB11
7: PB12
8: PB13
11: PC6
12: PC7
13: PC8
14: PC9
15: PC10
16: PC11
17: PD9
18: PD10
19: PD11
20: PD12
21: PD13
22: PD14
23: PD15
24: PF0
25: PF1
26: PF2
27: PF3
28: PF4
29: PF5
30: PF6
31: PF7
LEUART0 Transmit
output. Also used
as receive input in
half duplex communication.
LFXTAL_N
Connected internally to a Low Frequency Crystal
(32.768 kHz).
Leave unconnected
externally.
LFXTAL_P
Connected internally to a Low Frequency Crystal
(32.768 kHz).
Leave unconnected
externally.
MODEM_ANT0
0: PA3
1: PA4
2: PA5
3: PB11
4: PB12
5: PB13
8: PC6
9: PC7
10: PC8
11: PC9
12: PC10
13: PC11
15: PD10
16: PD11
17: PD12
18: PD13
19: PD14
20: PD15
21: PF0
22: PF1
23: PF2
24: PF3
25: PF4
26: PF5
27: PF6
28: PF7
29: PA0
30: PA1
31: PA2
MODEM antenna
control output 0,
used for antenna
diversity.
MODEM_ANT1
0: PA4
1: PA5
2: PB11
3: PB12
4: PB13
7: PC6
8: PC7
9: PC8
10: PC9
11: PC11
12: PC11
14: PD10
15: PD11
16: PD12
17: PD13
18: PD14
19: PD15
20: PF0
21: PF1
22: PF2
23: PF3
24: PF4
25: PF5
26: PF6
27: PF7
28: PA0
29: PA1
30: PA2
31: PA3
MODEM antenna
control output 1,
used for antenna
diversity.
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Rev. 1.5 | 66
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Alternate
Functionality
LOCATION
0-3
4-7
8 - 11
12 - 15
16 - 19
20 - 23
24 - 27
28 - 31
Description
12: PC7
13: PC8
14: PC9
15: PC10
16: PC11
18: PD10
19: PD11
20: PD12
21: PD13
22: PD14
23: PD15
24: PF0
25: PF1
26: PF2
27: PF3
28: PF4
29: PF5
30: PF6
31: PF7
MODEM data clock
out.
17: PD10
18: PD11
19: PD12
20: PD13
21: PD14
22: PD15
23: PF0
24: PF1
25: PF2
26: PF3
27: PF4
28: PF5
29: PF6
30: PF7
31: PA0
MODEM data in.
12: PC9
13: PC10
14: PC11
16: PD10
17: PD11
18: PD12
19: PD13
20: PD14
21: PD15
22: PF0
23: PF1
24: PF2
25: PF3
26: PF4
27: PF5
28: PF6
29: PF7
30: PA0
31: PA1
MODEM data out.
12: PC7
13: PC8
14: PC9
15: PC10
16: PC11
17: PD9
18: PD10
19: PD11
20: PD12
21: PD13
22: PD14
23: PD15
24: PF0
25: PF1
26: PF2
27: PF3
28: PF4
29: PF5
30: PF6
31: PF7
Pulse Counter
PCNT0 input number 0.
12: PC8
13: PC9
14: PC10
15: PC11
16: PD9
17: PD10
18: PD11
19: PD12
20: PD13
21: PD14
22: PD15
23: PF0
24: PF1
25: PF2
26: PF3
27: PF4
28: PF5
29: PF6
30: PF7
31: PA0
Pulse Counter
PCNT0 input number 1.
MODEM_DCLK
0: PA0
1: PA1
2: PA2
3: PA3
4: PA4
5: PA5
6: PB11
7: PB12
MODEM_DIN
0: PA1
1: PA2
2: PA3
3: PA4
4: PA5
5: PB11
6: PB12
7: PB13
MODEM_DOUT
0: PA2
1: PA3
2: PA4
3:PA5
4: PB11
5: PB12
6: PB13
PCNT0_S0IN
0: PA0
1: PA1
2: PA2
3: PA3
4: PA4
5: PA5
6: PB11
7: PB12
PCNT0_S1IN
0: PA1
1: PA2
2: PA3
3: PA4
4: PA5
5: PB11
6: PB12
7: PB13
PRS_CH0
0: PF0
1: PF1
2: PF2
3: PF3
4: PF4
5: PF5
6: PF6
7: PF7
PRS_CH1
0: PF1
1: PF2
2: PF3
3: PF4
4: PF5
5: PF6
6: PF7
7: PF0
Peripheral Reflex
System PRS, channel 1.
PRS_CH2
0: PF2
1: PF3
2: PF4
3: PF5
4: PF6
5: PF7
6: PF0
7: PF1
Peripheral Reflex
System PRS, channel 2.
PRS_CH3
0: PF3
1: PF4
2: PF5
3: PF6
4: PF7
5: PF0
6: PF1
7: PF2
0: PD9
1: PD10
2: PD11
3: PD12
4: PD13
5: PD14
6: PD15
PRS_CH4
PRS_CH5
0: PD10
1: PD11
2: PD12
3: PD13
PRS_CH6
0: PA0
1: PA1
2: PA2
3: PA3
8: PB13
11: PC6
10: PC6
11: PC7
9: PC6
10: PC7
11: PC8
8: PB13
11: PC6
10: PC6
11: PC7
8: PC6
9: PC7
10: PC8
11: PC9
8: PD9
9: PD10
10: PD11
11: PD12
12: PC8
13: PC9
14: PC10
15: PC11
12: PC10
13: PC11
Peripheral Reflex
System PRS, channel 0.
12: PD13
13: PD14
14: PD15
Peripheral Reflex
System PRS, channel 3.
Peripheral Reflex
System PRS, channel 4.
4: PD14
5: PD15
Peripheral Reflex
System PRS, channel 5.
6: PD9
4: PA4
5. PA5
6: PB11
7: PB12
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8: PB13
11: PD9
12: PD10
13: PD11
14: PD12
15: PD13
16: PD14
17: PD15
Peripheral Reflex
System PRS, channel 6.
Rev. 1.5 | 67
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Alternate
Functionality
LOCATION
0-3
4-7
PRS_CH7
0: PA1
1: PA2
2: PA3
3: PA4
4: PA5
5: PB11
6: PB12
7: PB13
PRS_CH8
0: PA2
1: PA3
2: PA4
3: PA5
4: PB11
5: PB12
6: PB13
PRS_CH9
0: PA3
1: PA4
2: PA5
3: PB11
PRS_CH10
0: PC6
1: PC7
2: PC8
3: PC9
PRS_CH11
0: PC7
1: PC8
2: PC9
3: PC10
TIM0_CC0
0: PA0
1: PA1
2: PA2
3: PA3
4: PA4
5: PA5
6: PB11
7: PB12
TIM0_CC1
0: PA1
1: PA2
2: PA3
3: PA4
4: PA5
5: PB11
6: PB12
7: PB13
TIM0_CC2
0: PA2
1: PA3
2: PA4
3: PA5
TIM0_CDTI0
0: PA3
1: PA4
2: PA5
3: PB11
TIM0_CDTI1
0: PA4
1: PA5
2: PB11
3: PB12
TIM0_CDTI2
0: PA5
1: PB11
2: PB12
3: PB13
TIM1_CC0
0: PA0
1: PA1
2: PA2
3: PA3
4: PB12
5: PB13
8 - 11
12 - 15
16 - 19
20 - 23
24 - 27
28 - 31
Peripheral Reflex
System PRS, channel 7.
10: PA0
Peripheral Reflex
System PRS, channel 8.
9: PA0
10: PA1
8: PA0
9: PA1
10: PA2
11: PC6
Description
12: PC7
13: PC8
14: PC9
15: PC10
16: PC11
Peripheral Reflex
System PRS, channel 9.
4: PC10
5: PC11
Peripheral Reflex
System PRS, channel 10.
4: PC11
5: PC6
Peripheral Reflex
System PRS, channel 11.
4: PB11
5: PB12
6: PB13
4: PB12
5: PB13
4: PB13
7: PC6
6: PC6
7: PC7
4: PA4
5: PA5
6: PB11
7: PB12
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8: PB13
11: PC6
10: PC6
11: PC7
12: PC7
13: PC8
14: PC9
15: PC10
16: PC11
17: PD9
18: PD10
19: PD11
20: PD12
21: PD13
22: PD14
23: PD15
24: PF0
25: PF1
26: PF2
27: PF3
28: PF4
29: PF5
30: PF6
31: PF7
Timer 0 Capture
Compare input /
output channel 0.
12: PC8
13: PC9
14: PC10
15: PC11
16: PD9
17: PD10
18: PD11
19: PD12
20: PD13
21: PD14
22: PD15
23: PF0
24: PF1
25: PF12
26: PF3
27: PF4
28: PF5
29: PF6
30: PF7
31: PA0
Timer 0 Capture
Compare input /
output channel 1.
16: PD10
17: PD11
18: PD12
19: PD13
20: PD14
21: PD15
22: PF0
23: PF1
24: PF2
25: PF3
26: PF4
27: PF5
28: PF6
29: PF7
30: PA0
31: PA1
Timer 0 Capture
Compare input /
output channel 2.
12: PC9
13: PC10
14: PC11
9: PC6
10: PC7
11: PC8
15: PD9
8: PC6
9: PC7
10: PC8
11: PC9
12: PC10
13: PC11
14: PD9
15: PD10
16: PD11
17: PD12
18: PD13
19: PD14
20: PD15
21: PF0
22: PF1
23: PF2
24: PF3
25: PF4
26: PF5
27: PF6
28: PF7
29: PA0
30: PA1
31: PA2
Timer 0 Complimentary Dead Time
Insertion channel 0.
8: PC7
9: PC8
10: PC9
11: PC10
12: PC11
13: PD9
14: PD10
15: PD11
16: PD12
17: PD13
18: PD14
19: PD15
20: PF0
21: PF1
22: PF2
23: PF3
24: PF4
25: PF5
26: PF6
27: PF7
28: PA0
29: PA1
30: PA2
31: PA3
Timer 0 Complimentary Dead Time
Insertion channel 1.
8: PC8
9: PC9
10: PC10
11: PC11
12: PD9
13: PD10
14: PD11
15: PD12
16: PD13
17: PD14
18: PD15
19: PF0
20: PF1
21: PF2
22: PF3
23: PF4
24: PF5
25: PF6
26: PF7
27: PA0
28: PA1
29: PA2
30: PA3
31: PA4
Timer 0 Complimentary Dead Time
Insertion channel 2.
8: PB13
11: PC6
12: PC7
13: PC8
14: PC9
15: PC10
16: PC11
17: PD9
18: PD10
19: PD11
20: PD12
21: PD13
22: PD14
23: PD15
24: PF0
25: PF1
26: PF2
27: PF3
28: PF4
29: PF5
30: PF6
31: PF7
Timer 1 Capture
Compare input /
output channel 0.
Rev. 1.5 | 68
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Alternate
Functionality
LOCATION
0-3
4-7
8 - 11
12 - 15
16 - 19
20 - 23
24 - 27
28 - 31
Description
12: PC8
13: PC9
14: PC10
15: PC11
16: PD9
17: PD10
18: PD11
19: PD12
20: PD13
21: PD14
22: PD15
23: PF0
24: PF1
225: PF2
26: PF3
27: PF4
28: PF5
29: PF6
30: PF7
31: PA0
Timer 1 Capture
Compare input /
output channel 1.
9: PC6
10: PC7
11: PC8
12: PC9
13: PC10
14: PC11
15: PD9
16: PD10
17: PD11
18: PD12
19: PD13
20: PD14
21: PD15
22: PF0
23: PF1
24: PF2
25: PF3
26: PF4
27: PF5
28: PF6
29: PF7
30: PA0
31: PA1
Timer 1 Capture
Compare input /
output channel 2.
8: PC6
9: PC7
10: PC8
11: PC9
12: PC10
13: PC11
14: PD9
15: PD10
16: PD11
17: PD12
18: PD13
19: PD14
20: PD15
21: PF0
22: PF1
23: PF2
24: PF3
25: PF4
26: PF5
27: PF6
28: PF7
29: PA0
30: PA1
31: PA2
Timer 1 Capture
Compare input /
output channel 3.
9: PC6
10: PC7
11: PC8
12: PC9
13: PC10
14: PC11
15: PD9
16: PD10
17: PD11
18: PD12
19: PD13
20: PD14
21: PD15
22: PF0
23: PF1
24: PF2
25: PF3
26: PF4
27: PF5
28: PF6
29: PF7
30: PA0
31: PA1
USART0 clock input / output.
TIM1_CC1
0: PA1
1: PA2
2: PA3
3: PA4
4: PA5
5: PB11
6: PB12
7: PB13
TIM1_CC2
0: PA2
1: PA3
2: PA4
3: PA5
4: PB11
5: PB12
6: PB13
TIM1_CC3
0: PA3
1: PA4
2: PA5
3: PB11
US0_CLK
0: PA2
1: PA3
2: PA4
3: PA5
US0_CS
0: PA3
1: PA4
2: PA5
3: PB11
4: PB12
5: PB13
8: PC6
9: PC7
10: PC8
11: PC9
12: PC10
13: PC11
14: PD9
15: PD10
16: PD11
17: PD12
18: PD13
19: PD14
20: PD15
21: PF0
22: PF1
23: PF2
24: PF3
25: PF4
26: PF5
27: PF6
28: PF7
29: PA0
30: PA1
31: PA2
USART0 chip select input / output.
US0_CTS
0: PA4
1: PA5
2: PB11
3: PB12
4: PB13
7: PC6
8: PC7
9: PC8
10: PC9
11: PC10
12: PC11
13: PD9
14: PD10
15: PD11
16: PD12
17: PD13
18: PD14
19: PD15
20: PF0
21: PF1
22: PF2
23: PF3
24: PF4
25: PF5
26: PF6
27: PF7
28: PA0
29: PA1
30: PA2
31: PA3
USART0 Clear To
Send hardware
flow control input.
US0_RTS
0: PA5
1: PB11
2: PB12
3: PB13
6: PC6
7: PC7
8: PC8
9: PC9
10: PC10
11: PC11
12: PD9
13: PD10
14: PD11
15: PD12
16: PD13
17: PD14
18: PD15
19: PF0
20: PF1
21: PF2
22: PF3
23: PF4
24: PF5
25: PF6
26: PF7
27: PA0
28: PA1
29: PA2
30: PA3
31: PA4
USART0 Request
To Send hardware
flow control output.
US0_RX
0: PA1
1: PA2
2: PA3
3: PA4
4: PB12
5: PB13
4: PB11
5: PB12
6: PB13
4: PA5
5: PB11
6: PB12
7: PB13
0: PA0
1: PA1
2: PA2
3: PA3
4: PA4
5: PA5
6: PB11
7: PB12
US1_CLK
0: PA2
1: PA3
2: PA4
3: PA5
4: PB11
5: PB12
6: PB13
US1_CS
0: PA3
1: PA4
2: PA5
3: PB11
US0_TX
4: PB12
5: PB13
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10: PC6
11: PC7
10: PC6
11: PC7
12: PC8
13: PC9
14: PC10
15: PC11
16: PD9
17: PD10
18: PD11
19: PD12
20: PD13
21: PD14
22: PD15
23: PF0
24: PF1
25: PF2
26: PF3
27: PF4
28: PF5
29: PF6
30: PF7
31: PA0
USART0 Asynchronous Receive.
USART0 Synchronous mode Master
Input / Slave Output (MISO).
USART0 Asynchronous Transmit. Also used as receive
input in half duplex
communication.
8: PB13
11: PC6
12: PC7
13: PC8
14: PC9
15: PC10
16: PC11
17: PD9
18: PD10
19: PD11
20: PD12
21: PD13
22: PD14
23: PD15
24: PF0
25: PF1
26: PF2
27: PF3
28: PF4
29: PF5
30: PF6
31: PF7
9: PC6
10: PC7
11: PC8
12: PC9
13: PC10
14: PC11
15: PD9
16: PD10
17: PD11
18: PD12
19: PD13
20: PD14
21: PD15
22: PF0
23: PF1
24: PF2
25: PF3
26: PF4
27: PF5
28: PF6
29: PF7
30: PA0
31: PA1
USART1 clock input / output.
8: PC6
9: PC7
10: PC8
11: PC9
12: PC10
13: PC11
14: PD9
15: PD10
16: PD11
17: PD12
18: PD13
19: PD14
20: PD15
21: PF0
22: PF1
23: PF2
24: PF3
25: PF4
26: PF5
27: PF6
28: PF7
29: PA0
30: PA1
31: PA2
USART1 chip select input / output.
USART0 Synchronous mode Master
Output / Slave Input (MOSI).
Rev. 1.5 | 69
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Alternate
Functionality
LOCATION
0-3
4-7
8 - 11
12 - 15
16 - 19
20 - 23
24 - 27
28 - 31
Description
US1_CTS
0: PA4
1: PA5
2: PB11
3: PB12
4: PB13
7: PC6
8: PC7
9: PC8
10: PC9
11: PC10
12: PC11
13: PD9
14: PD10
15: PD11
16: PD12
17: PD13
18: PD14
19: PD15
20: PF0
21: PF1
22: PF2
23: PF3
24: PF4
25: PF5
26: PF6
27: PF7
28: PA0
29: PA1
30: PA2
31: PA3
USART1 Clear To
Send hardware
flow control input.
US1_RTS
0: PA5
1: PB11
2: PB12
3: PB13
6: PC6
7: PC7
8: PC8
9: PC9
10: PC10
11: PC11
12: PD9
13: PD10
14: PD11
15: PD12
16: PD13
17: PD14
18: PD15
19: PF0
20: PF1
21: PF2
22: PF3
23: PF4
24: PF5
25: PF6
26: PF7
27: PA0
28: PA1
29: PA2
30: PA3
31: PA4
USART1 Request
To Send hardware
flow control output.
US1_RX
US1_TX
0: PA1
1: PA2
2: PA3
3: PA4
0: PA0
1: PA1
2: PA2
3: PA3
4: PA5
5: PB11
6: PB12
7: PB13
4: PA4
5: PA5
6: PB11
7: PB12
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10: PC6
11: PC7
8: PB13
11: PC6
12: PC8
13: PC9
14: PC10
15: PC11
12: PC7
13: PC8
14: PC9
15: PC10
16: PD9
17: PD10
18: PD11
19: PD12
16: PC11
17: PD9
18: PD10
19: PD11
20: PD13
21: PD14
22: PD15
23: PF0
20: PD12
21: PD13
22: PD14
23: PD15
24: PF1
25: PF2
26: PF3
27: PF4
24: PF0
25: PF1
26: PF2
27: PF3
28: PF5
29: PF6
30: PF7
31: PA0
28: PF4
29: PF5
30: PF6
31: PF7
USART1 Asynchronous Receive.
USART1 Synchronous mode Master
Input / Slave Output (MISO).
USART1 Asynchronous Transmit. Also used as receive
input in half duplex
communication.
USART1 Synchronous mode Master
Output / Slave Input (MOSI).
Rev. 1.5 | 70
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
7.3 Analog Port (APORT)
The Analog Port (APORT) is an infrastructure used to connect chip pins with on-chip analog clients such as analog comparators, ADCs,
and DACs. The APORT consists of wires, switches, and control needed to configurably implement the routes. Please see the device
Reference Manual for a complete description.
DY
DX
CY
CX
PC6
PC7
PC8
PC9
PC10
PC11
PF0
PB15
PF1
PF2
POS
PF3
1X
2X
3X
4X
1X
2X
3X
4X
NEG
PF5
PF6
PB13
ACMP1
1Y
2Y
3Y
4Y
ACMP0
PF4
PB14
POS
1Y
2Y
3Y
4Y
NEG
PB12
PB11
PA5
PF7
PA4
AX
AY
BX
BY
POS
ADC0
NEG
1X
2X
3X
4X
PA3
PA2
1Y
2Y
3Y
4Y
ADC_EXTP
PA1
EXTP
EXTN
ADC_EXTN
PA0
PD15
1X
1Y
IDAC0
nX, nY
APORTnX, APORTnY
AX, BY, …
BUSAX, BUSBY, ...
PD14
PD13
PD12
PD11
PD10
PD9
Figure 7.2. BGM121/BGM123 APORT
Client maps for each analog circuit using the APORT are shown in the following tables. The maps are organized by bus, and show the
peripheral's port connection, the shared bus, and the connection from specific bus channel numbers to GPIO pins. In general,
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Rev. 1.5 | 71
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
enumerations for the pin selection field in an analog peripheral's register can be determined by finding the desired pin connection in the
table and then combining the value in the Port column (APORT__), and the channel identifier (CH__). For example, if pin PF7 is available on port APORT2X as CH23, the register field enumeration to connect to PF7 would be APORT2XCH23. The shared bus used by
this connection is indicated in the Bus column.
CH0
CH1
CH2
CH3
CH4
CH5
CH6
PC6
PD10
PD9
PD11
PD9
PD10
PD12
PD11
PD13
PD13
PD14
PD15
PA0
PD12
PC6
PD14
PD15
PA0
PA1
PA1
PA2
CH7
PC8
PC7
PC7
PC8
PC9
PC10
PA4
PA3
PA3
PA4
PA5
PA2
PF0
CH8
CH9
PC9
PC11
PC11
PF1
PF1
PA5
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CH10
PC10
CH11
CH12
CH13
CH14
CH15
CH16
PF0
CH17
CH18
PF2
PF4
PF3
PF3
PF2
CH19
CH20
PF4
CH21
PB11
PB11
PB12
PB13
PB13
PB14
PB14
PB15
PB15
PB12
PF6
PF5
PF7
PF7
PF5
PF6
CH22
CH23
CH24
CH25
CH26
CH27
CH28
CH29
CH30
CH31
Bus
BUSAX
BUSAY
BUSBX
BUSBY
BUSCX
BUSCY
BUSDX
BUSDY
APORT4Y APORT4X APORT3Y APORT3X APORT2Y APORT2X APORT1Y APORT1X Port
Table 7.4. ACMP0 Bus and Pin Mapping
Rev. 1.5 | 72
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PD10
PD12
PD14
PA0
PA2
PA4
PB12
PB14
BUSDY
PD9
PD11
PD13
PD15
PA1
PD9
PD11
PD13
PD15
PA1
PA3
PA5
PA5
PA3
PB11
PB11
PB13
PB15
PB15
PB13
BUSCY
BUSDX
PD10
PD12
PD14
PA0
PA2
PA4
PB12
PB14
BUSCX
PC6
PC8
PC10
PF0
PF2
PF4
PF6
BUSBY
PC7
PC9
PC11
PF1
PF3
PF5
PF7
BUSBX
PC7
PC9
PC11
PF1
PF3
PF5
PF7
BUSAY
PC6
PC8
PC10
PF0
PF2
PF4
PF6
BUSAX
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH13
CH14
CH15
CH16
CH17
CH18
CH19
CH20
CH21
CH22
CH23
CH24
CH25
CH26
CH27
CH28
CH29
CH30
CH31
Bus
APORT4Y APORT4X APORT3Y APORT3X APORT2Y APORT2X APORT1Y APORT1X Port
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Table 7.5. ACMP1 Bus and Pin Mapping
Rev. 1.5 | 73
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PD9
PD11
PD13
PD15
PA1
PA3
PA5
PB11
PB13
PB15
BUSCY
PD10
PD12
PD14
PA0
PA2
PA4
PB12
PB14
BUSCX
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH13
CH14
CH15
CH16
CH17
CH18
CH19
CH20
CH21
CH22
CH23
CH24
CH25
CH26
CH27
CH28
CH29
CH30
CH31
Bus
APORT1Y APORT1X Port
PD10
PD12
PD14
PA0
PA2
PA4
PB12
PB14
BUSDY
PD9
PD11
PD13
PD15
PA1
PA3
PA5
PB11
PD9
PD11
PD13
PD15
PA1
PA3
PA5
PB11
PB13
PB15
PB15
PB13
BUSCY
BUSDX
PD10
PD12
PD14
PA0
PA2
PA4
PB12
PB14
BUSCX
PC6
PC8
PC10
PF0
PF2
PF4
PF6
BUSBY
PC7
PC9
PC11
PF1
PF3
PF5
PF7
BUSBX
PC7
PC9
PC11
PF1
PF3
PF5
PF7
BUSAY
PC6
PC8
PC10
PF0
PF2
PF4
PF6
BUSAX
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH13
CH14
CH15
CH16
CH17
CH18
CH19
CH20
CH21
CH22
CH23
CH24
CH25
CH26
CH27
CH28
CH29
CH30
CH31
Bus
APORT4Y APORT4X APORT3Y APORT3X APORT2Y APORT2X APORT1Y APORT1X Port
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Pin Definitions
Table 7.6. ADC0 Bus and Pin Mapping
Table 7.7. IDAC0 Bus and Pin Mapping
Rev. 1.5 | 74
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Package Specifications
8. Package Specifications
8.1 BGM121/BGM123 Package Dimensions
Figure 8.1. BGM121/BGM123 Package Dimensions
Table 8.1. Package Dimensions
Dimension
MIN
NOM
MAX
A
1.20
1.30
1.40
A1
0.26
0.30
0.34
A2
0.95
1.00
1.05
b
0.15
0.25
0.35
D
6.50 BSC
D2
2.925 BSC
D3
4.80 BSC
D4
0.625 BSC
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Rev. 1.5 | 75
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Package Specifications
Dimension
MIN
NOM
D5
0.75 BSC
e
0.40 BSC
E
6.50 BSC
E2
1.00 BSC
E3
4.80 BSC
E4
3.20 BSC
E5
0.95 BSC
MAX
L
0.30
0.40
0.50
L1
0.15
0.20
0.25
L2
0.675
0.725
0.775
L3
0.50
0.60
0.70
eD1
2.00 BSC
eD2
1.00 BSC
eD3
2.40 BSC
eD4
1.525 BSC
eE1
0.80 BSC
eE2
2.025 BSC
eE3
1.00 BSC
eE4
0.85 BSC
aaa
0.10
bbb
0.10
ccc
0.10
ddd
0.10
eee
0.10
Note:
1. All dimensions shown are in millimeters (mm) unless otherwise noted.
2. Dimensioning and Tolerancing per ANSI Y14.5M-1994.
3. This drawing conforms to the JEDEC Solid State Outline MO-220.
4. Recommended card reflow profile is per the JEDEC/IPC J-STD-020 specification for Small Body Components.
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Package Specifications
8.2 BGM121/BGM123 Package Marking
The figure below shows the package markings printed on the module.
Figure 8.2. BGM121/BGM123 Package Marking
Table 8.2. Explanations
Marking
Explanation
X
Module variant
• 1 = BGM121, +8dBm TX
• 3 = BGM123, +2dBm TX
Y
Antenna variant
• A = Internal antenna
• 3 = RF pin
YY
Last 2 digits of manufacturing year
• Example: 17 = 2017
WW
Work week (01-53)
R
Product Revision or FW Revision
M
Contract Manufacturer Site assigned by Silicon Labs
TT
Unique Batch ID assigned by CM (2 characters A-Z)
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Package Specifications
8.3 BGM121/BGM123 Recommended PCB Land Pattern
Figure 8.3. Module Footprint
Table 8.3. PCB Land Pattern Dimensions
Symbol
NOM (mm)
b
0.20 BSC
D1
5.80 BSC
D2
5.150 BSC
D3
3.575 BSC
D4
0.90 BSC
e
0.400 BSC
E1
5.800 BSC
E2
4.800 BSC
E3
5.150 BSC
E4
2.925 BSC
E5
1.975 BSC
E6
0.50 BSC
L
0.50 BSC
L3
0.60 BSC
eD1
1.40 BSC
eD2
1.00 BSC
eD3
0.90 BSC
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Package Specifications
Symbol
NOM (mm)
eE1
0.90 BSC
eE2
1.90 BSC
eE3
2.00 BSC
Note:
1. All feature sizes shown are at Maximum Material Condition (MMC) and a card fabrication tolerance of 0.05mm is assumed.
2. Dimensioning and Tolerancing is per the ANSI Y14.5M-1994 specification.
3. This Land Pattern Design is based on the IPC-7351 guidelines.
Note: Soldering process specific adjustments may need to be made to the PCB land pattern.
4. The smaller rectangle pads are longer and thinner on the PCB Land Pattern(LPD) than the Package Outline Drawing(POD) (0.2 x
0.5 vs. 0.25 x 0.4). The LPD pad edge aligns with the edge of the POD pads. The centers of the respective pads do not align and
that is the cause of the dimensional differences between POD and LPD.
5. Above notes and stencil design are shared as recommendations only. A user may find it necessary to use different parameters
and fine tune their SMT process as required for their application and tooling.
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Package Specifications
ANTENNA LAYOUT RECOMMENDATION
This section describes the recommended PCB land pattern for the BGM121/BGM123 with X-Y cordinates of pads and the antenna copper clearance area. The X-Y cordinates of pads relative to the origo are shown in the table. The origo is the center point of pin no 53. It
is very important to align the antenna area relative to the module pads precisely. This recommendation is only valid for parts with builtin antenna.
Figure 8.4. BGM121/BGM123 Recommended Land Pattern
Note: The provided stencil information is a recommendation and soldering process specific adjustments may need to be made.
Table 8.4. Layout Recommendation
Pad No.
Pad coordinates
(X,Y)
Pad size (mm)
Solder mask opening
size (mm)
Stencil aperture size (mm)
53
(0,0)
0.6 x 0.6
0.73 x 0.73
0.48 x 0.48
51
(1.75, -3.75)
52
(3.75,-3.75)
54
(0,-1.0)
56
(2.925,0)
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Package Specifications
Pad No.
Pad coordinates
(X,Y)
Pad size (mm)
Solder mask opening
size (mm)
Stencil aperture size (mm)
1
(-0.15,-1.95)
0.20 x 0.50
0.33 x 0.63
0.20 x 0.45
9
(-0.15,-5.15)
10
(0.35,-5.65)
22
(5.15,-5.65)
23
(5.65,-5.15)
35
(5.65,-0.35)
36
(5.15,0.15)
41
(3.675,-0.75)
50
(0.75,-2.075)
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Tape and Reel Specifications
9. Tape and Reel Specifications
9.1 Tape and Reel Packaging
This section contains information regarding the tape and reel packaging for the BGM121/BGM123 Blue Gecko Module.
9.2 Reel and Tape Specifications
•
•
•
•
•
•
•
Reel material: Polystyrene (PS)
Reel diameter: 13 inches (330 mm)
Number of modules per reel: 1000 pcs
Disk deformation, folding whitening and mold imperfections: Not allowed
Disk set: consists of two 13 inch (330 mm) rotary round disks and one central axis (100 mm)
Antistatic treatment: Required
Surface resistivity: 104 - 109 Ω/sq.
Figure 9.1. Reel Dimensions - Side View
Table 9.1. Reel Dimensions
Symbol
Dimensions [mm]
W0
32.5 ± 0.3
W1
37.1 ± 1.0
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Tape and Reel Specifications
Figure 9.2. Cover tape information
Table 9.2. Cover Tape Dimensions
Symbol
Dimensions [mm]
Thickness (T)
0.061
Width (W)
25.5 + 0.2
Figure 9.3. Tape information
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Tape and Reel Specifications
9.3 Orientation and Tape Feed
The user direction of feed, start and end of tape on reel and orientation of the Modules on the tape are shown in the figures below.
Figure 9.4. Module Orientation and Feed Direction
9.4 Tape and Reel Box Dimensions
Figure 9.5. Tape and Reel Box Dimensions
Table 9.3. Tape and Reel Box Dimensions
Symbol
Dimensions [mm]
W2
368
W3
338
W4
72
9.5 Moisture Sensitivity Level
Reels are delivered in packing which conforms to MSL3 (Moisture Sensitivity Level 3) requirements.
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Soldering Recommendations
10. Soldering Recommendations
10.1 Soldering Recommendations
The BGM121/BGM123 is compatible with industrial standard reflow profile for Pb-free solders. The reflow profile used is dependent on
the thermal mass of the entire populated PCB, heat transfer efficiency of the oven, and particular type of solder paste used.
•
•
•
•
•
•
•
•
Refer to technical documentations of particular solder paste for profile configurations.
Avoid usining more than two reflow cycles.
A no-clean, type-3 solder paste is recommended.
A stainless steel, laser-cut and electro-polished stencil with trapezoidal walls should be used to assure good solder paste release.
Recommended stencil thickness is 0.100 mm (4 mils).
General SMT application notes are provided in AN1223.
For further recommendation, refer to the JEDEC/IPC J-STD-020, IPC-SM-782 and IPC 7351 guidelines.
The above notes are recommendations only. A customer or user may find it necessary to use different parameters and fine tune
their SMT process as required for their application and tooling.
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Certifications
11. Certifications
Refer to AN1048 for information related to Regulatory Certifications.
11.1 Bluetooth
The BGM121/BGM123 Bluetooth Declarion ID is: D033250.
11.2 CE and UKCA - EU and UK
The BGM121/BGM123 modules have been tested against the relevant harmonized/designated standards and are in conformity with the
essential requirements and other relevant requirements of the EU's Radio Equipment Directive (RED) (2014/53/EU) and of the UK's
Radio Equipment Regulations (RER) (S.I. 2017/1206).
Please notice that every end-product integrating a BGM121/BGM123 module will need to perform the radio EMC tests on the whole
assembly, according to the ETSI 301 489-x relevant standards.
Furthermore, it is ultimately the responsibility of the manufacturers to ensure the compliance of their end-products as a whole. The specific product assembly is likely to have an impact to RF radiated characteristics, when compared to the bare module. Hence, manufacturers should carefully consider RF radiated testing with the final product assembly, especially taking into account the gain of the external antenna if any, and the possible deviations in the PSD, EIRP and spurious emissions measurements, as defined in the ETSI EN
300 328 standard.
The modules are entitled to carry the CE and UKCA Marks, and a formal Declaration of Conformity (DoC) is available at the product
web page which is reachable starting from https://www.silabs.com/.
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Certifications
11.3 FCC
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
• This device may not cause harmful interference, and
• This device must accept any interference received, including interference that may cause undesirable operation.
Any changes or modifications not expressly approved by Silicon Labs could void the user’s authority to operate the equipment.
FCC RF Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific operating instructions for satisfying RF exposure compliance. This transmitter meets both portable and mobile limits as demonstrated
in the RF Exposure Analysis and SAR test report. This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter except in accordance with FCC multi-transmitter product procedures.
OEM Responsibilities to comply with FCC Regulations:
The transmitter module must not be co-located or operating in conjunction with any other antenna or transmitter except in accordance
with FCC multi-transmitter product procedures.
Each new host will require reassessment of radiated spurious emissions and a permissive change to the certification.
For BGM121N the minimum separation distance to human body is 6 mm. If the separation distance from the antenna to human body is
6 mm or more, SAR testing is not needed. In case the separation distance to human body is less than 6 mm, then OEM integrator is
responsible to test the SAR with the end product assembly.
OEM integrator is responsible for testing their end-product for any additional compliance requirements required with this module installed (for example, digital device emissions, PC peripheral requirements, etc.).
Important Note:
In the event that this condition cannot be met (for certain configurations or co-location with another transmitter), then the FCC authorization is no longer considered valid and the FCC ID cannot be used on the final product. In these circumstances, the OEM integrator
will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization.
End Product Labeling
The BGM121/BGM123 Bluetooth module is labeled with its own FCC ID. If the FCC ID is not visible when the module is installed inside
another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed
module. In that case, the final end product must be labeled in a visible area with the following:
"Contains Transmitter Module FCC ID: QOQBGM12LMA"
Or
"Contains FCC ID: QOQBGM12LMA"
The OEM integrator must not provide information to the end user regarding how to install or remove this RF module or change RF
related parameters in the user manual of the end product.
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Certifications
11.4 ISED Canada
ISED Canada (English)
This radio transmitter has been approved by Industry Canada to operate with its embedded antenna. Other antenna types are strictly
prohibited for use with this device. This device complies with Industry Canada’s license-exempt RSS standards. Operation is subject to
the following two conditions:
1. This device may not cause interference; and
2. This device must accept any interference, including interference that may cause undesired operation of the device.
RF Exposure Statement
Exception from routine SAR evaluation limits are given in RSS-102 Issue5. BGM121N meets the given requirements when the minimum separation distance to human body is less than equal to 15 mm. RF exposure or SAR evaluation is not required when the separation distance is 15 mm or more.
BGM121A and BGM123A modules has been tested for worst case RF exposure. As demonstrated in the SAR test report, BGM121A
and BGM123A can be mounted in touch with human body without further SAR evaluation.
If the separation distance of BGM121N or BGM123N is less than 15 mm the OEM integrator is responsible for evaluating the SAR.
OEM Responsibilities to comply with IC Regulations
The transmitter module must not be co-located or operating in conjunction with any other antenna or transmitter.
Radiated emission must be tested with each new host product and ISEDC must be notified with a Class 4 Permissive Change.
OEM integrator is responsible for testing their end-product for any additional compliance requirements required with this module installed (for example, digital device emissions, PC peripheral requirements, etc.).
Important note
In the event that these conditions cannot be met (for certain configurations or co-location with another transmitter), then the IC authorization is no longer considered valid and the IC ID cannot be used on the final product. In these circumstances, the OEM integrator will
be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate IC authorization.
End Product Labeling
The BGM121/BGM123 module is not labeled with IC ID because of its small physical size. The final end product must be labeled in a
visible area with the following:
“Contains Transmitter Module IC: 5123A-BGM12LMA ”
or
“Contains IC: 5123A-BGM12LMA”
The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module or
change RF related parameters in the user manual of the end product.
ISED Canada (Français)
Cet émetteur radio (IC : 5123A-BGM12LMA) a reçu l'approbation d'Industrie Canada pour une exploitation avec l'antenne puce incorporée. Il est strictement interdit d'utiliser d'autres types d'antenne avec cet appareil.
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence. L’exploitation est
autorisée aux deux conditions suivantes:
1. L’appareil ne doit pas produire de brouillage; et
2. L’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible de provoquer un fonctionnement
non désiré de l’appareil.
Déclaration relative à l'exposition aux radiofréquences (RF)
Les limites applicables à l’exemption de l’évaluation courante du DAS sont énoncées dans le CNR 102, 5e édition. Le module Bluetooth BGM121/BGM123 répond aux exigences données quand la distance de séparation minimum par rapport au corps humain est de
15 mm. L'évaluation de l'exposition aux RF ou du DAS n'est pas requise quand la distance de séparation est de 15 mm ou plus. Si la
distance de séparation est inférieure à 15 mm, il incombe à l'intégrateur FEO d'évaluer le DAS.
Responsabilités du FEO ayant trait à la conformité avec les règlements IC
Le Module Bluetooth BGM121/BGM123 a été certifié pour une intégration dans des produits uniquement par les intégrateurs FEO dans
les conditions suivantes:
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Certifications
• La ou les antennes doivent être installées de telle façon qu'une distance de séparation minimum de 15 mm soit maintenue entre le
radiateur (antenne) et toute personne à tout moment.
• Le module émetteur ne doit pas être installé au même endroit ou fonctionner conjointement avec toute autre antenne ou émetteur.
Dès lors que les deux conditions ci-dessus sont respectées, aucun test supplémentaire de l’émetteur n’est obligatoire. Cependant, il
incombe toujours à l'intégrateur FEO de tester la conformité de son produit final vis-à-vis de toute exigence supplémentaire requise
avec ce module installé (par exemple, émissions de dispositifs numériques, exigences relatives aux matériels périphériques PC, etc).
Note: S'il s'avère que ces conditions ne peuvent être respectées (pour certaines configurations ou la colocation avec un autre émetteur), alors l'autorisation IC n'est plus considérée comme valide et l'identifiant IC ne peut plus être employé sur le produit final. Dans
ces circonstances, l'intégrateur FEO aura la responsabilité de réévaluer le produit final (y compris l'émetteur) et d'obtenir une autorisation IC distincte.
Étiquetage du produit final
L'étiquette du Module BGM121/BGM123 porte son propre identifiant IC. Si l'identifiant IC n'est pas visible quand le module est installé à
l'intérieur d'un autre appareil, alors l'extérieur de l'appareil dans lequel le module est installé doit aussi porter une étiquette faisant référence au module qu'il contient. Dans ce cas, une étiquette comportant les informations suivantes doit être apposée sur une partie visible
du produit final.
"Contient le module émetteur IC: 5123A-BGM12LMA"
ou
"Contient IC : 5123A-BGM12LMA"
L'intégrateur FEO doit être conscient de ne pas fournir d'informations à l'utilisateur final permettant d'installer ou de retirer ce module
RF ou de changer les paramètres liés aux RF dans le mode d'emploi du produit final.
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Certifications
11.5 Japan
The BGM121/BGM123 is certified in Japan with certification number 209-J00226.
Important
The module does is not labeled with Japan certification mark and ID because of the small physical size. Manufacturer who integrates a
radio module in their host equipment must place the certification mark and certification number on the outside of the host equipment.
The certification mark and certification number must be placed close to the text in the Japanese language which is provided below.
Translation:
“This equipment contains specified radio equipment that has been certified to the Technical Regulation Conformity Certification under
the Radio Law.”
11.6 Approved Antenna Types
BGM121N and BGM123N modules are approved with a standard 2.14 dBi dipole antenna. Any antenna of the same type, similar inband out of band characteristics and with the same or less gain can be used without reassessment. In case using antenna of a different
type and/or higher gain reassessments and notification to the particular certification authority is required.
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Revision History
12. Revision History
Revision 1.5
October, 2022
•
•
•
•
•
•
•
•
•
•
In the front page block diagram, updated the lowest energy mode for LETIMER.
Updated 3.6.3 Low Energy Timer (LETIMER) lowest energy mode.
Removed BIASPROG = 1, FULLBIAS = 0 specifications from 4.1.15 Analog Comparator (ACMP).
Added timing specifications for RESETn low time and clarified VIL and VIH logic levels for RESETn pins in Table 4.20 GPIO on page
31.
Added Figure 4.2 SPI Master Timing Diagram (SMSDELAY = 1) on page 43.
Added a note about V_1V8 pin to 5.1 Typical Connections.
Added reference to AN1223 and updated 10.1 Soldering Recommendations section.
Added reference to AN1048 in 11. Certifications section.
Updated 11.2 CE and UKCA - EU and UK.
Removed all references to RFSENSE.
Revision 1.4
September 2019
• Added the SoC Family in the front page description.
• Updated Supported Protocol to Bluetooth® Low Energy in 1. Feature List.
• Updated the Protocol Stack in Table 2.1 Ordering Information on page 3 to Bluetooth® Low Energy.
• Replaced Bluetooth® Smart with Bluetooth® Low Energy wherever applicable.
• Removed Wake On Radio references wherever applicable since this feature is not supported by the software.
• Corrected the RSSIMIN and RSSIMAX specifications in 4.1.8.3 RF Receiver Characteristics for Bluetooth Low Energy in the 2.4 GHz
Band.
• Corrected the Max value of Gain error in ADC in Table 4.22 ADC on page 33.
• Corrected the footprint in Figure 6.2 BGM121/BGM123 PCB Middle and Bottom Layer Design on page 47.
• Updated Figure 7.2 BGM121/BGM123 APORT on page 71 to clarify the APORT Connection Diagram.
• Divided the APORT table into individual tables based on Analog Peripherals in 7.3 Analog Port (APORT).
• Removed Note #5 in Table 8.1 Package Dimensions on page 75 since shield is not used in BGM12x.
• Updated Figure 8.3 Module Footprint on page 78 and Table 8.3 PCB Land Pattern Dimensions on page 78.
• Added a Note in Table 8.3 PCB Land Pattern Dimensions on page 78 regarding the differences in dimensions between the PCB
Land Pattern (LPD) and Package Outline Drawing (POD).
• Added a Note in Table 8.3 PCB Land Pattern Dimensions on page 78 with general guidelines for users.
• Added a legend to and updated the Example Stencil Design in Figure 8.4 BGM121/BGM123 Recommended Land Pattern on page
80
• Corrected minor typos wherever applicable throughout the document.
Revision 1.3
• Package dimensions diagram updated
• b and L dimensions adjusted in the PCB land pattern dimensions
• Maximum TX power for BGM123 is amended to +2 dBm, was +3 dBm in earlier data sheet revisions
• Maximum TX power for BGM121 is +8 dBm as in earlier data sheet versions
• Table 4.7 Current consumption in transmit mode: +3 dBm output power changed to +2 dBm
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Revision History
Revision 1.2
• Alternate functionality overview table - the following pins missing were added into table:
• Certifications listed on front page
• Bluetooth 4.2 compliant changed to Bluetooth 4.2 low energy compliant on front page
• + symbol added to top row Typ value in table 4.11
• Typical schematics section updated
• PCB Layout recommendations sectionupdated
• Package Specifications section revised
• ISEDC changed to ISED Canada
Revision 1.1
• Alternate functionality overview table - the following pins missing were added into table:
• PA2 / PA3 / PA4 / PA5
• PC6 / PC7 / PC8 / PC9
• PF4 / PF5 / PF6 / PF7
• Alternate functionality overview table - LEU0_TX row added.
• Alternate functionality overview table - layout within cells in the table modified.
• Feature list updated
Revision 1.0
• Chapter 4.1.8.1 RF Transmitter General Characteristics for the 2.4 GHz Band updated
• ISEDC description added in French
• BGM121/BGM123 Module Dimensions and Footprint chapter removed
Revision 0.85
• Package marking updated
Revision 0.84
• Package marking updated
Revision 0.83
• Minor updates
Revision 0.82
• Updated electrical characteristics
• Updated package dimensions
• Updated footprint
Revision 0.81
• Layout guidelines updated
• Reference schematics added
• Tape and Reel specifications added
Revision 0.80
• Soldering recommendatoions added
• EM4 shutoff maximum current updated
• Radion patterns added
• Package marking added
Revision 0.79
• Electrical characterisitics updated
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BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
Revision History
Revision 0.78
• Name of datasheet changed from "BGM12 Datasheet" to "BGM121/BGM123 Datasheet"
• Port D9 / Pin 7 marked as "Reserved".
• Number of GPIO pins reduced from 32 to 29.
• Number of pins connected to Analog Port reduced from 32 to 29.
• Ordering info for full production part numbers included.
Revision 0.77
• Power, Ground, Debug, Host UART, SPI, I2C Connections figure updated.
Revision 0.76
• GPIO pin data updated
• Module pinout corrected (V_1V8 and V_BATT exchanged)
• PB14 and PB15 marked DNC (Do Not Connect)
Revision 0.75
• OPN table updated
• Max TX power updated
Revision 0.74
• Land pattern added
Revision 0.73
• Updated pin definitions
• Updated pinout
Revision 0.72
• Updated pin definitions
• Updated package specifications
• Added SPI reference schematic
• Updated layout guidelines
Revision 0.71
• Updated electrical characteristics
Revision 0.70
• Initial draft
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Rev. 1.5 | 93
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Silicon Labs intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or intending to use the Silicon Labs products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each
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