ATtiny1624/1626/1627
Product Brief
Introduction
The ATtiny1624/1626/1627 microcontrollers of the tinyAVR® 2 family are using the AVR® CPU with hardware
multiplier, running at up to 20 MHz, with 16 KB Flash, 2 KB of SRAM, and 256B of EEPROM available in a 14-, 20-,
and 24-pin package. The family uses the latest technologies from Microchip with a flexible and low-power
architecture, including Event System and SleepWalking, advanced digital peripherals, and accurate analog features
such as a 12-bit differential ADC with Programmable Gain Amplifier (PGA).
Features
•
High-Performance Low-Power AVR® CPU
– Running at up to 20 MHz
– Single-cycle I/O access
– Two-level interrupt controller with vectored interrupts
– Two-cycle hardware multiplier
– Supply voltage range: 1.8V to 5.5V
•
Memories
– 16 KB In-System self-programmable Flash memory
– 2 KB SRAM
– 256B EEPROM
– 32B of user row in nonvolatile memory that can keep data during chip-erase and be programmed while the
device is locked
– Write/erase endurance
• Flash 10,000 cycles
• EEPROM 100,000 cycles
•
– Data retention: 40 years at 55°C
System
– Power-on Reset (POR)
– Brown-out Detection (BOD)
– Clock options
• Lockable 20 MHz Low-Power internal oscillator
• 32.768 kHz Ultra Low-Power (ULP) internal oscillator
• 32.768 kHz external crystal oscillator
• External clock input
– Single-pin Unified Program and Debug Interface (UPDI)
– Three sleep modes
• Idle with all peripherals running and immediate wake-up time
• Standby
– Configurable operation of selected peripherals
– SleepWalking peripherals
• Power-Down with full data retention
© 2020 Microchip Technology Inc.
Product Brief
DS40002203A-page 1
ATtiny1624/1626/1627
•
•
•
•
•
Peripherals
– One 16-bit Timer/Counter type A (TCA) with a dedicated period register and three PWM channels
– Two 16-bit Timer/Counter type B (TCB) with input capture and simple PWM functionality
– One 16-bit Real-Time Counter (RTC) running from external 32.768 kHz crystal or internal 32.768 kHz ULP
oscillator
– Two Universal Synchronous Asynchronous Receiver Transmitter (USART) with fractional baud rate
generator, auto-baud, and start-of-frame detection
– Master/Slave Serial Peripheral Interface (SPI)
– Master/Slave Two-Wire Interface (TWI) with dual address match
• Standard mode (Sm, 100 kHz)
• Fast mode (Fm, 400 kHz)
• Fast mode plus (Fm+, 1 MHz)
– Event System for CPU independent and predictable inter-peripheral signaling
– Configurable Custom Logic (CCL) with four programmable Look-Up Tables (LUT)
– One Analog Comparator (AC) with scalable reference input
– One 12-bit differential 375 ksps Analog-to-Digital Converter (ADC) with Programmable Gain Amplifier
(PGA) and up to 15 input channels
– Multiple internal voltage references
• 1.024V
• 2.048V
• 2.500V
• 4.096V
• VDD
– Automated Cyclic Redundancy Check (CRC) flash memory scan
– Watchdog Timer (WDT) with Window Mode, with a separate on-chip oscillator
– External interrupt on all general purpose pins
I/O and Packages
– Up to 22 programmable I/O pins
– 14-pin
• SOIC150
• TSSOP
– 20-pin
• SOIC300
• SSOP
• VQFN 3x3 mm
– 24-pin
• VQFN 4x4 mm
Temperature Ranges
– -40°C to 85°C (standard)
– -40°C to 125°C (extended)
Speed Grades (-40°C to 85°C)
– 0-5 MHz @ 1.8V – 5.5V
– 0-10 MHz @ 2.7V – 5.5V
– 0-20 MHz @ 4.5V – 5.5V
Speed Grades (-40°C to 125°C)
– 0-8 MHz @ 2.7V - 5.5V
– 0-16 MHz @ 4.5V - 5.5V
© 2020 Microchip Technology Inc.
Product Brief
DS40002203A-page 2
ATtiny1624/1626/1627
Table of Contents
Introduction.....................................................................................................................................................1
Features......................................................................................................................................................... 1
1.
Block Diagram.........................................................................................................................................4
2.
Peripheral Overview................................................................................................................................5
3.
Pinout...................................................................................................................................................... 6
3.1.
3.2.
3.3.
3.4.
4.
14-Pin SOIC, TSSOP................................................................................................................... 6
20-Pin SOIC, SSOP..................................................................................................................... 7
20-Pin VQFN................................................................................................................................ 8
24-Pin VQFN................................................................................................................................ 9
I/O Multiplexing and Considerations..................................................................................................... 10
4.1.
I/O Multiplexing...........................................................................................................................10
The Microchip Website................................................................................................................................. 11
Product Change Notification Service............................................................................................................11
Customer Support........................................................................................................................................ 11
Microchip Devices Code Protection Feature................................................................................................ 11
Legal Notice..................................................................................................................................................11
Trademarks.................................................................................................................................................. 12
Quality Management System....................................................................................................................... 12
Worldwide Sales and Service.......................................................................................................................13
© 2020 Microchip Technology Inc.
Product Brief
DS40002203A-page 3
ATtiny1624/1626/1627
Block Diagram
1.
Block Diagram
UPDI
UPDI / RESET
CRC
M
CPU
OCD
M
Flash
M
S
SRAM
BUS Matrix
S
S
S
AINm
ADCn
PORTS
PGA
PORTMUX
AINPm
AINNm
OUT
ACn
VREFA
VREF
EVOUTx
LUTn_INm
LUTn_OUT
WOm
WO
EVSYS
CCL
TCAn
TCBn
E
V
E
N
T
R
O
U
T
I
N
G
N
E
T
W
O
R
K
D
A
T
A
B
U
S
GPIOR
CPUINT
I
N
/
O
U
T
EEPROM
NVMCTRL
Pxn
D
A
T
A
B
U
S
Detectors/power
control
System
Management
RSTCTRL
POR
VREG
BOD
VLM
VDD
CLKCTRL
SLPCTRL
Clock generation
CLKOUT
RXD
TXD
XCK
XDIR
OSC20M
USARTn
WDT
OSCULP32K
RTC
MISO
MOSI
SCK
SS
SPIn
SDA
SCL
TWIn
EXTCLK
TOSC1
XOSC32K
TOSC2
© 2020 Microchip Technology Inc.
Product Brief
DS40002203A-page 4
ATtiny1624/1626/1627
Peripheral Overview
2.
Peripheral Overview
Table 2-1. Peripheral Overview
Device
ATtiny1624
ATtiny1626
ATtiny1627
Pins
14
20
24
Package
SOIC
SOIC,VQFN
VQFN
Maximum frequency (MHz)
20
20
20
General purpose I/O
12
18
22
PORT
PA[7:0], PB[3:0] PA[7:0], PB[5:0], PA[7:0], PB[7:0],
PC[3:0]
PC[5:0]
External interrupts
12
18
22
Event system channels
6
6
6
CCL LUTs
4
4
4
Real-Time Counter (RTC)
1
1
1
16-bit Timer/Counter type A (TCA)
1
1
1
16-bit Timer/Counter type B (TCB)
2
2
2
12-bit Timer/Counter type D (TCD)
-
-
-
USART/SPI master
2
2
2
SPI
1
1
1
TWI (I2C)
1
1
1
ADC (channels)
1 (9)
1 (15)
1 (15)
DAC
-
-
-
Analog Comparators (inputs)
1 (4p/3n)
1 (4p/3n)
1 (4p/3n)
Peripheral Touch Controller (PTC) (self cap/mutual cap
channels)
-
-
-
Unified Program and Debug Interface (UPDI) activated by
shared pin using high-voltage signal or fuse override
1
1
1
© 2020 Microchip Technology Inc.
Product Brief
DS40002203A-page 5
ATtiny1624/1626/1627
Pinout
3.
Pinout
3.1
14-Pin SOIC, TSSOP
VDD
1
14
GND
PA4
2
13
PA3 (EXTCLK)
PA5
3
12
PA2
PA6
4
11
PA1
PA7
5
10
PA0 (UPDI/RESET)
(TOSC1) PB3
6
9
PB0
(TOSC2) PB2
7
8
PB1
Input supply
Programming, Debug, Reset
Ground
Clock, crystal
PIN on VDD power
© 2020 Microchip Technology Inc.
Product Brief
DS40002203A-page 6
ATtiny1624/1626/1627
Pinout
3.2
20-Pin SOIC, SSOP
VDD
1
20
GND
PA4
2
19
PA3 (EXTCLK)
PA5
3
18
PA2
PA6
4
17
PA1
PA7
5
16
PA0 (UPDI/RESET)
PB5
6
15
PC3
PB4
7
14
PC2
(TOSC1) PB3
8
13
PC1
(TOSC2) PB2
9
12
PC0
PB1
10
11
PB0
Input supply
Programming, Debug, Reset
Ground
Clock, crystal
PIN on VDD power
© 2020 Microchip Technology Inc.
Product Brief
DS40002203A-page 7
ATtiny1624/1626/1627
Pinout
PA1
PA0 (UPDI/RESET)
PC3
PC2
PC1
20
19
18
17
16
20-Pin VQFN
3
13
PB1
VDD
4
12
PB2 (TOSC2)
PA4
5
11
PB3 (TOSC1)
10
GND
PB4
PB0
9
14
PB5
2
8
(EXTCLK) PA3
PA7
PC0
7
15
PA6
1
6
PA2
PA5
3.3
Input supply
Programming, Debug, Reset
Ground
Clock, crystal
PIN on VDD power
© 2020 Microchip Technology Inc.
Product Brief
DS40002203A-page 8
ATtiny1624/1626/1627
Pinout
PA1
PA0 (UPDI/RESET)
PC5
PC4
PC3
PC2
24
23
22
21
20
19
24-Pin VQFN
PB0
VDD
4
15
PB1
PA4
5
14
PB2 (TOSC2)
PA5
6
13
PB3 (TOSC1)
12
16
PB4
3
11
GND
PB5
PC0
10
17
PB6
2
9
(EXTCLK) PA3
PB7
PC1
8
18
PA7
1
7
PA2
PA6
3.4
Input supply
Programming, Debug, Reset
Ground
Clock, crystal
PIN on VDD power
© 2020 Microchip Technology Inc.
Product Brief
DS40002203A-page 9
ATtiny1624/1626/1627
I/O Multiplexing and Considerations
4.
I/O Multiplexing and Considerations
4.1
I/O Multiplexing
Table 4-1. PORT Function Multiplexing
SPI0
TWI0
TCA0
TCBn
CCL
SSOP/SOIC 20-pin
USART1
TSSOP/SOIC 14-pin
USART0
VQFN 20-pin
AC0
VQFN 24-pin
Pin Other/Special ADC0(3)
Name
(1,2)
23
19
16
10
24
20
17
11
PA1
AIN1
TXD(4)
TXD
MOSI
LUT0-IN1
1
1
18
12
PA2
EVOUTA
AIN2
RxD(4)
RXD
MISO
LUT0-IN2
2
2
19
13
PA3
EXTCLK
AIN3
XCK(4)
XCK
SCK
WO3
3
3
20
14
GND
4
4
1
1
VDD
5
5
2
2
PA4
AIN4
XDIR(4)
XDIR
SS
WO4
6
6
3
3
PA5
7
7
4
4
PA6
8
8
5
5
9
10
PA0
RESET
UPDI
VREFA
PA7
EVOUTA(4)
PB7
EVOUTB(4)
LUT0-IN0
AIN5
OUT
AIN6
AINN0
AIN7
AINP0
PB6
WO5
1,WO
LUT0-OUT
0,WO
LUT3-OUT(4)
LUT1-OUT
LUT2-OUT(4)
AINP3
11
9
6
PB5
CLKOUT
AIN8
AINP1
WO2(4)
12
10
7
PB4
RESET(4)
AIN9
AINN1
WO1(4)
13
11
8
6
PB3
TOSC1
RxD
WO0(4)
LUT2-OUT
14
12
9
7
PB2
TOSC2
EVOUTB
TxD
WO2
LUT2-IN2
15
13
10
8
PB1
AIN10
AINP2
XCK
SDA
WO1
LUT2-IN1
16
14
11
9
PB0
AIN11
AINN2
XDIR
SCL
WO0
LUT2-IN0
17
15
12
PC0
AIN12
XCK(4)
SCK(4)
AIN13
RxD(4)
MISO(4)
AIN14
TxD(4)
MOSI(4)
AIN15
XDIR(4)
SS(4)
18
16
13
PC1
19
17
14
PC2
20
18
15
PC3
EVOUTC
LUT0-OUT
0,WO(4)
LUT3-IN0
LUT1-OUT(4)
LUT3-IN1
LUT3-IN2
WO3(4)
21
PC4
WO4(4)
22
PC5
WO5(4)
LUT1-IN0
1,WO(4)
LUT1-IN1
LUT3-OUT
LUT1-IN2
Note:
1. Pin names are of type Pxn, with x being the PORT instance (A, B) and n the pin number. Notation for signals is
PORTx_PINn.
2. All pins can be used for external interrupt, where pins Px2 and Px6 of each port have full asynchronous
detection. All pins can be used as event input.
3. AIN[15:8] can not be used as negative ADC input for differential measurements.
4. Alternative pin location. For selecting alternative pin location refer to PORTMUX section.
© 2020 Microchip Technology Inc.
Product Brief
DS40002203A-page 10
ATtiny1624/1626/1627
The Microchip Website
Microchip provides online support via our website at http://www.microchip.com/. This website is used to make files
and information easily available to customers. Some of the content available includes:
•
•
•
Product Support – Data sheets and errata, application notes and sample programs, design resources, user’s
guides and hardware support documents, latest software releases and archived software
General Technical Support – Frequently Asked Questions (FAQs), technical support requests, online
discussion groups, Microchip design partner program member listing
Business of Microchip – Product selector and ordering guides, latest Microchip press releases, listing of
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Product Change Notification Service
Microchip’s product change notification service helps keep customers current on Microchip products. Subscribers will
receive email notification whenever there are changes, updates, revisions or errata related to a specified product
family or development tool of interest.
To register, go to http://www.microchip.com/pcn and follow the registration instructions.
Customer Support
Users of Microchip products can receive assistance through several channels:
•
•
•
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Local Sales Office
Embedded Solutions Engineer (ESE)
Technical Support
Customers should contact their distributor, representative or ESE for support. Local sales offices are also available to
help customers. A listing of sales offices and locations is included in this document.
Technical support is available through the website at: http://www.microchip.com/support
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices:
•
•
•
•
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
Microchip believes that its family of products is one of the most secure families of its kind on the market today,
when used in the intended manner and under normal conditions.
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these
methods, to our knowledge, require using the Microchip products in a manner outside the operating
specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of
intellectual property.
Microchip is willing to work with the customer who is concerned about the integrity of their code.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code
protection does not mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection
features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital
Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you
may have a right to sue for relief under that Act.
Legal Notice
Information contained in this publication regarding device applications and the like is provided only for your
convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with
© 2020 Microchip Technology Inc.
Product Brief
DS40002203A-page 11
ATtiny1624/1626/1627
your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER
EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR
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Trademarks
The Microchip name and logo, the Microchip logo, Adaptec, AnyRate, AVR, AVR logo, AVR Freaks, BesTime,
BitCloud, chipKIT, chipKIT logo, CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR, HELDO, IGLOO, JukeBlox,
KeeLoq, Kleer, LANCheck, LinkMD, maXStylus, maXTouch, MediaLB, megaAVR, Microsemi, Microsemi logo, MOST,
MOST logo, MPLAB, OptoLyzer, PackeTime, PIC, picoPower, PICSTART, PIC32 logo, PolarFire, Prochip Designer,
QTouch, SAM-BA, SenGenuity, SpyNIC, SST, SST Logo, SuperFlash, Symmetricom, SyncServer, Tachyon,
TempTrackr, TimeSource, tinyAVR, UNI/O, Vectron, and XMEGA are registered trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries.
APT, ClockWorks, The Embedded Control Solutions Company, EtherSynch, FlashTec, Hyper Speed Control,
HyperLight Load, IntelliMOS, Libero, motorBench, mTouch, Powermite 3, Precision Edge, ProASIC, ProASIC Plus,
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Vite, WinPath, and ZL are registered trademarks of Microchip Technology Incorporated in the U.S.A.
Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any Capacitor, AnyIn, AnyOut, BlueSky, BodyCom,
CodeGuard, CryptoAuthentication, CryptoAutomotive, CryptoCompanion, CryptoController, dsPICDEM,
dsPICDEM.net, Dynamic Average Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial Programming, ICSP,
INICnet, Inter-Chip Connectivity, JitterBlocker, KleerNet, KleerNet logo, memBrain, Mindi, MiWi, MPASM, MPF,
MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM,
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ViewSpan, WiperLock, Wireless DNA, and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A.
and other countries.
SQTP is a service mark of Microchip Technology Incorporated in the U.S.A.
The Adaptec logo, Frequency on Demand, Silicon Storage Technology, and Symmcom are registered trademarks of
Microchip Technology Inc. in other countries.
GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip
Technology Inc., in other countries.
All other trademarks mentioned herein are property of their respective companies.
©
2020, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved.
ISBN: 978-1-5224-5934-7
Quality Management System
For information regarding Microchip’s Quality Management Systems, please visit http://www.microchip.com/quality.
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Product Brief
DS40002203A-page 12
Worldwide Sales and Service
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Product Brief
DS40002203A-page 13
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