8-bit Atmel tinyAVR Microcontroller with
16K Bytes In-System Programmable Flash
ATtiny1634
Summary
Features
•
•
•
•
•
•
•
•
•
•
High Performance, Low Power AVR® 8-bit Microcontroller
Advanced RISC Architecture
– 125 Powerful Instructions – Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Fully Static Operation
High Endurance, Non-volatile Memory Segments
– 16K Bytes of In-System, Self-Programmable Flash Program Memory
• Endurance: 10,000 Write/Erase Cycles
– 256 Bytes of In-System Programmable EEPROM
• Endurance: 100,000 Write/Erase Cycles
– 1K Byte of Internal SRAM
– Data retention: 20 years at 85C / 100 years at 25C
– Programming Lock for Self-Programming Flash & EEPROM Data Security
Peripheral Features
– Dedicated Hardware and QTouch® Library Support for Capacitive Touch Sensing
– One 8-bit and One 16-bit Timer/Counter with Two PWM Channels, Each
– 12-channel, 10-bit ADC
– Programmable Ultra Low Power Watchdog Timer
– On-chip Analog Comparator
– Two Full Duplex USARTs with Start Frame Detection
– Universal Serial Interface
– Slave I2C Serial Interface
Special Microcontroller Features
– debugWIRE On-chip Debug System
– In-System Programmable via SPI Port
– Internal and External Interrupt Sources
• Pin Change Interrupt on 18 Pins
– Low Power Idle, ADC Noise Reduction, Standby and Power-down Modes
– Enhanced Power-on Reset Circuit
– Programmable Brown-out Detection Circuit with Supply Voltage Sampling
– Calibrated 8MHz Oscillator with Temperature Calibration Option
– Calibrated 32kHz Ultra Low Power Oscillator
– On-chip Temperature Sensor
I/O and Packages
– 18 Programmable I/O Lines
– 20-pad QFN/MLF, and 20-pin SOIC
Operating Voltage:
– 1.8 – 5.5V
Speed Grade:
– 0 – 2MHz @ 1.8 – 5.5V
– 0 – 8MHz @ 2.7 – 5.5V
– 0 – 12MHz @ 4.5 – 5.5V
Temperature Range: -40C to +105C
Low Power Consumption
– Active Mode: 0.2mA at 1.8V and 1MHz
– Idle Mode: 30µA at 1.8V and 1MHz
– Power-Down Mode (WDT Enabled): 1µA at 1.8V
– Power-Down Mode (WDT Disabled): 100nA at 1.8V
Atmel-8303HS-AVR-ATtiny1634-Summary_02/2014
1. Pin Configurations
Figure 1-1.
Pinout of ATtiny1634
SOIC
(PCINT8/TXD0/ADC5) PB0
(PCINT7/RXD0/ADC4) PA7
(PCINT6/OC1B/ADC3) PA6
(PCINT5/OC0B/ADC2) PA5
(PCINT4/T0/ADC1) PA4
(PCINT3/T1/SNS/ADC0) PA3
(PCINT2/AIN1) PA2
(PCINT1/AIN0) PA1
(PCINT0/AREF) PA0
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
PB1 (ADC6/DI/SDA/RXD1/PCINT9)
PB2 (ADC7/DO/TXD1/PCINT10)
PB3 (ADC8/OC1A/PCINT11)
PC0 (ADC9/OC0A/XCK0/PCINT12)
PC1 (ADC10/ICP1/SCL/USCK/XCK1/PCINT13)
PC2 (ADC11/CLKO/INT0/PCINT14)
PC3 (RESET/dW/PCINT15)
PC4 (XTAL2/PCINT16)
PC5 (XTAL1/CLKI/PCINT17)
VCC
NOTE
Bottom pad should be
soldered to ground.
15
14
13
12
11
6
7
8
9
10
1
2
3
4
5
PC0 (ADC9/OC0A/XCK0/PCINT12)
PC1 (ADC10/ICP1/SCL/USCK/XCK1/PCINT13)
PC2 (ADC11/CLKO/INT0/PCINT14)
PC3 (RESET/dW/PCINT15)
PC4 (XTAL2/PCINT16)
(PCINT1/AIN0) PA1
(PCINT0/AREF) PA0
GND
VCC
PC5 (XTAL1/CLKI/PCINT17)
(PCINT6/OC1B/ADC3) PA6
(PCINT5/OC0B/ADC2) PA5
(PCINT4/T0/ADC1) PA4
(PCINT3/T1/SNS/ADC0) PA3
(PCINT2/AIN1) PA2
20
19
18
17
16
PA7 (PCINT7/RXD0/ADC4)
PB0 (PCINT8/TXD0/ADC5)
PB1 (ADC6/DI/SDA/RXD1/PCINT9)
PB2 (ADC7/DO/TXD1/PCINT10)
PB3 (ADC8/OC1A/PCINT11)
QFN/MLF
ATtiny1634 [DATASHEET]
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1.1
Pin Descriptions
1.1.1
VCC
Supply voltage.
1.1.2
GND
Ground.
1.1.3
XTAL1
Input to the inverting amplifier of the oscillator and the internal clock circuit. This is an alternative pin configuration
of PC5.
1.1.4
XTAL2
Output from the inverting amplifier of the oscillator. Alternative pin configuration of PC4.
1.1.5
RESET
Reset input. A low level on this pin for longer than the minimum pulse length will generate a reset, even if the clock
is not running and provided the reset pin has not been disabled. The minimum pulse length is given in Table 24-5
on page 231. Shorter pulses are not guaranteed to generate a reset.
The reset pin can also be used as a (weak) I/O pin.
1.1.6
Port A (PA7:PA0)
This is an 8-bit, bi-directional I/O port with internal pull-up resistors (selected for each bit). Output buffers have the
following drive characteristics:
• PA7, PA4:PA0: Symmetrical, with standard sink and source capability
• PA6, PA5: Asymmetrical, with high sink and standard source capability
As inputs, port pins that are externally pulled low will source current provided that pull-up resistors are activated.
Port pins are tri-stated when a reset condition becomes active, even if the clock is not running.
This port has alternate pin functions to serve special features of the device. See “Alternate Functions of Port A” on
page 62.
1.1.7
Port B (PB3:PB0)
This is a 4-bit, bi-directional I/O port with internal pull-up resistors (selected for each bit).Output buffers have the
following drive characteristics:
• PB3: Asymmetrical, with high sink and standard source capability
• PB2:PB0: Symmetrical, with standard sink and source capability
As inputs, port pins that are externally pulled low will source current provided that pull-up resistors are activated.
Port pins are tri-stated when a reset condition becomes active, even if the clock is not running.
This port has alternate pin functions to serve special features of the device. See “Alternate Functions of Port B” on
page 65.
1.1.8
Port C (PC5:PC0)
This is a 6-bit, bi-directional I/O port with internal pull-up resistors (selected for each bit). Output buffers have the
following drive characteristics:
ATtiny1634 [DATASHEET]
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• PC5:PC1: Symmetrical, with standard sink and source capability
• PC0: Asymmetrical, with high sink and standard source capability
As inputs, port pins that are externally pulled low will source current provided that pull-up resistors are activated.
Port pins are tri-stated when a reset condition becomes active, even if the clock is not running.
This port has alternate pin functions to serve special features of the device. See “Alternate Functions of Port C” on
page 67.
2. Overview
ATtiny1634 is a low-power CMOS 8-bit microcontrollers based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATtiny1634 achieves throughputs approaching 1 MIPS per
MHz allowing the system designer to optimize power consumption versus processing speed.
Figure 2-1.
Block Diagram
VCC
RESET
GND
ISP
INTERFACE
ON-CHIP
DEBUGGER
POWER
SUPERVISION:
POR
BOD
RESET
DEBUG
INTERFACE
EEPROM
CALIBRATED ULP
OSCILLATOR
CALIBRATED
OSCILLATOR
WATCHDOG
TIMER
TIMING AND
CONTROL
PROGRAM
MEMORY
DATA
MEMORY
(FLASH)
(SRAM)
8-BIT
TIMER/COUNTER
16-BIT
TIMER/COUNTER
USART0
USI
USART1
TWO-WIRE
INTERFACE
TEMPERATURE
SENSOR
VOLTAGE
REFERENCE
ANALOG
COMPARATOR
MULTIPLEXER
TOUCH
SENSING
ADC
CPU CORE
8-BIT DATA BUS
PORT A
PORT B
PORT C
PA[7:0]
PB[3:0]
PC[5:0]
ATtiny1634 [DATASHEET]
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The AVR core combines a rich instruction set with 32 general purpose working registers. All 32 registers are
directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in a single
instruction, executed in one clock cycle. The resulting architecture is compact and code efficient while achieving
throughputs up to ten times faster than conventional CISC microcontrollers.
ATtiny1634 provides the following features:
• 16K bytes of in-system programmable Flash
• 1K bytes of SRAM data memory
• 256 bytes of EEPROM data memory
• 18 general purpose I/O lines
• 32 general purpose working registers
• An 8-bit timer/counter with two PWM channels
• A16-bit timer/counter with two PWM channels
• Internal and external interrupts
• A 10-bit ADC with 5 internal and 12 external channels
• An ultra-low power, programmable watchdog timer with internal oscillator
• Two programmable USART’s with start frame detection
• A slave Two-Wire Interface (TWI)
• A Universal Serial Interface (USI) with start condition detector
• A calibrated 8MHz oscillator
• A calibrated 32kHz, ultra low power oscillator
• Four software selectable power saving modes.
The device includes the following modes for saving power:
• Idle mode: stops the CPU while allowing the timer/counter, ADC, analog comparator, SPI, TWI, and interrupt
system to continue functioning
• ADC Noise Reduction mode: minimizes switching noise during ADC conversions by stopping the CPU and all
I/O modules except the ADC
• Power-down mode: registers keep their contents and all chip functions are disabled until the next interrupt or
hardware reset
• Standby mode: the oscillator is running while the rest of the device is sleeping, allowing very fast start-up
combined with low power consumption.
The device is manufactured using Atmel’s high density non-volatile memory technology. The Flash program memory can be re-programmed in-system through a serial interface, by a conventional non-volatile memory
programmer or by an on-chip boot code, running on the AVR core.
The ATtiny1634 AVR is supported by a full suite of program and system development tools including: C compilers,
macro assemblers, program debugger/simulators and evaluation kits.
ATtiny1634 [DATASHEET]
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3. General Information
3.1
Resources
A comprehensive set of drivers, application notes, data sheets and descriptions on development tools are available
for download at http://www.atmel.com/avr.
3.2
Code Examples
This documentation contains simple code examples that briefly show how to use various parts of the device. These
code examples assume that the part specific header file is included before compilation. Be aware that not all C
compiler vendors include bit definitions in the header files and interrupt handling in C is compiler dependent.
Please confirm with the C compiler documentation for more details.
For I/O Registers located in the extended I/O map, “IN”, “OUT”, “SBIS”, “SBIC”, “CBI”, and “SBI” instructions must
be replaced with instructions that allow access to extended I/O. Typically, this means “LDS” and “STS” combined
with “SBRS”, “SBRC”, “SBR”, and “CBR”. Note that not all AVR devices include an extended I/O map.
3.3
Capacitive Touch Sensing
Atmel QTouch Library provides a simple to use solution for touch sensitive interfaces on Atmel AVR microcontrollers. The QTouch Library includes support for QTouch® and QMatrix® acquisition methods.
Touch sensing is easily added to any application by linking the QTouch Library and using the Application Programming Interface (API) of the library to define the touch channels and sensors. The application then calls the API to
retrieve channel information and determine the state of the touch sensor.
The QTouch Library is free and can be downloaded from the Atmel website. For more information and details of
implementation, refer to the QTouch Library User Guide – also available from the Atmel website.
3.4
Data Retention
Reliability Qualification results show that the projected data retention failure rate is much less than 1 PPM over 20
years at 85°C or 100 years at 25°C.
4. CPU Core
This section discusses the AVR core architecture in general. The main function of the CPU core is to ensure correct program execution. The CPU must therefore be able to access memories, perform calculations, control
peripherals, and handle interrupts.
ATtiny1634 [DATASHEET]
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5. Register Summary
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(0xFF)
Reserved
–
–
–
–
–
–
–
–
Page(s)
(0xFE)
Reserved
–
–
–
–
–
–
–
–
(0xFD)
Reserved
–
–
–
–
–
–
–
–
(0xFC)
Reserved
–
–
–
–
–
–
–
–
(0xFB)
Reserved
–
–
–
–
–
–
–
–
(0xFA)
Reserved
–
–
–
–
–
–
–
–
(0xF9)
Reserved
–
–
–
–
–
–
–
–
...
...
...
...
...
...
...
...
...
...
(0x85)
Reserved
–
–
–
–
–
–
–
–
(0x84)
Reserved
–
–
–
–
–
–
–
–
(0x83)
Reserved
–
–
–
–
–
–
–
–
(0x82)
Reserved
–
–
–
–
–
–
–
–
(0x81)
–
–
–
–
–
–
–
–
(0x80)
Reserved
Reserved
–
–
–
–
–
–
–
–
(0x7F)
TWSCRA
TWSHE
–
TWDIE
TWASIE
TWEN
TWSIE
TWPME
TWSME
(0x7E)
TWSCRB
(0x7D)
TWSSRA
(0x7C)
TWSA
TWI Slave Address Register
130
(0x7B)
TWSAM
TWI Slave Address Mask Register
130
(0x7A)
TWSD
TWI Slave Data Register
(0x79)
UCSR1A
RXC1
TXC1
UDRE1
FE1
DOR1
UPE1
U2X1
MPCM1
167
(0x78)
UCSR1B
RXCIE1
TXCIE1
UDRIE1
RXEN1
TXEN1
UCSZ12
RXB81
TXB81
168
(0x77)
UCSR1C
UMSEL11
UMSEL10
UPM11
UPM01
USBS1
UCSZ11
UCSZ10
UCPOL1
(0x76)
UCSR1D
RXSIE1
RXS1
SFDE1
(0x75)
UBRR1H
USART1 Baud Rate Register High Byte
172
(0x74)
UBRR1L
USART1 Baud Rate Register Low Byte
172
(0x73)
UDR1
USART1 I/O Data Register
(0x72)
TCCR1A
COM1A1
COM1A0
COM1B1
COM1B0
–
–
WGM11
WGM10
111
(0x71)
TCCR1B
ICNC1
ICES1
–
WGM13
WGM12
CS12
CS11
CS10
113
FOC1A
FOC1B
–
–
–
–
–
–
114
TWAA
TWDIF
TWASIF
TWCH
TWRA
TWC
TWCMD[1:0]
TWBE
TWDIR
...
127
127
TWAS
128
130
169
171
167
(0x70)
TCCR1C
(0x6F)
TCNT1H
Timer/Counter1 – Counter Register High Byte
114
(0x6E)
TCNT1L
Timer/Counter1 – Counter Register Low Byte
114
(0x6D)
OCR1AH
Timer/Counter1 – Compare Register A High Byte
114
(0x6C)
OCR1AL
Timer/Counter1 – Compare Register A Low Byte
114
(0x6B)
OCR1BH
Timer/Counter1 – Compare Register B High Byte
115
(0x6A)
OCR1BL
Timer/Counter1 – Compare Register B Low Byte
115
(0x69)
ICR1H
Timer/Counter1 – Input Capture Register High Byte
115
(0x68)
ICR1L
Timer/Counter1 – Input Capture Register Low Byte
115
(0x67)
GTCCR
TSM
–
–
–
–
–
–
PSR10
118
(0x66)
OSCCAL1
–
–
–
–
–
–
CAL11
CAL10
33
(0x65)
OSCTCAL0B
Oscillator Temperature Compensation Register B
(0x64)
OSCTCAL0A
Oscillator Temperature Compensation Register A
(0x63)
OSCCAL0
CAL07
CAL06
CAL05
CAL04
CAL03
CAL02
CAL01
CAL00
32
(0x62)
DIDR2
–
–
–
–
–
ADC11D
ADC10D
ADC9D
200
33
33
(0x61)
DIDR1
–
–
–
–
ADC8D
ADC7D
ADC6D
ADC5D
200
(0x60)
DIDR0
ADC4D
ADC3D
ADC2D
ADC1D
ADC0D
AIN1D
AIN0D
AREFD
184, 200
0x3F (0x5F)
SREG
I
T
H
S
V
N
Z
C
14
0x3E (0x5E)
SPH
–
–
–
–
–
SP10
SP9
SP8
13
0x3D (0x5D)
SPL
SP7
SP6
SP5
SP4
SP3
SP2
SP1
SP0
13
0x3C (0x5C)
GIMSK
–
INT0
PCIE2
PCIE1
–
–
–
51
0x3B (0x5B)
GIFR
–
INTF0
PCIF2
PCIF1
PCIE0
PCIF0
–
–
–
52
0x3A (0x5A)
TIMSK
TOIE1
OCIE1A
OCIE1B
–
ICIE1
OCIE0B
TOIE0
OCIE0A
88, 115
0x39 (0x59)
TIFR
TOV1
OCF1A
OCF1B
–
ICF1
OCF0B
TOV0
OCF0A
89, 116
0x38 (0x58)
QTCSR
0x37 (0x57)
SPMCSR
–
–
RSIG
CTPB
PGWRT
PGERS
SPMEN
207
0x36 (0x56)
MCUCR
–
SM1
SM0
SE
–
–
ISC01
ISC00
37, 51
0x35 (0x55)
MCUSR
–
–
–
–
WDRF
BORF
EXTRF
PORF
44
0x34 (0x54)
PRR
–
PRTWI
PRTIM0
PRTIM0
PRUSI
PRUSART1
PRUSART0
PRADC
38
0x33 (0x53)
CLKPR
–
–
–
–
CLKPS3
CLKPS2
CLKPS1
CLKPS0
31
0x32 (0x52)
CLKSR
OSCRDY
CSTR
CKOUT_IO
SUT
CKSEL3
CKSEL2
CKSEL1
CKSEL0
29
QTouch Control and Status Register
RFLB
6
0x31 (0x51)
Reserved
–
–
–
–
–
–
–
–
0x30 (0x50)
WDTCSR
WDIF
WDIE
WDP3
–
WDE
WDP2
WDP1
WDP0
0x2F (0x4F)
CCP
CPU Change Protection Register
13
0x2E (0x4E)
DWDR
DWDR[7:0]
202
0x2D (0x4D)
USIBR
USI Buffer Register
144
0x2C (0x4C)
USIDR
USI Data Register
143
45
ATtiny1634 [DATASHEET]
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7
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Page(s)
0x2B (0x4B)
USISR
USISIF
USIOIF
USIPF
USIDC
USICNT3
USICNT2
USICNT1
USICNT0
142
0x2A (0x4A)
USICR
USISIE
USIOIE
USIWM1
USIWM0
USICS1
USICS0
USICLK
USITC
140
0x29 (0x49)
PCMSK2
–
–
PCINT17
PCINT16
PCINT15
PCINT14
PCINT13
PCINT12
52
0x28 (0x48)
PCMSK1
–
–
–
–
PCINT11
PCINT10
PCINT9
PCINT8
53
0x27 (0x47)
PCMSK0
PCINT7
PCINT6
PCINT5
PCINT4
PCINT3
PCINT2
PCINT1
PCINT0
53
0x26 (0x46)
UCSR0A
RXC0
TXC0
UDRE0
FE0
DOR0
UPE0
U2X0
MPCM
167
0x25 (0x45)
UCSR0B
RXCIE0
TXCIE0
UDRIE0
RXEN0
TXEN0
UCSZ02
RXB80
TXB80
168
0x24 (0x44)
UCSR0C
UMSEL01
UMSEL00
UPM01
UPM00
USBS0
UCSZ01
UCSZ00
UCPOL0
169
0x23 (0x43)
UCSR0D
RXCIE0
RXS0
SFDE0
–
–
–
–
–
171
0x22 (0x42)
UBRR0H
–
–
–
–
0x21 (0x41)
UBRR0L
USART0 Baud Rate Register Low Byte
0x20 (0x40)
UDR0
USART0 I/O Data Register
0x1F (0x3F)
EEARH
–
–
–
USART0 Baud Rate Register High Byte
–
–
0x1E (0x3E)
EEARL
EEAR[7:0]
0x1D (0x3D)
EEDR
EEPROM Data Register
0x1C (0x3C)
EECR
–
–
EEPM1
EEPM0
172
172
167
–
–
–
22
EERIE
22
EEMPE
EEPE
EERE
22
84
0x1B (0x3B)
TCCR0A
COM0A1
COM0A0
COM0B1
COM0B0
–
–
WGM01
WGM00
0x1A (0x3A)
TCCR0B
FOC0A
FOC0B
–
–
WGM02
CS02
CS01
CS00
0x19 (0x39)
TCNT0
Timer/Counter0
88
0x18 (0x38)
OCR0A
Timer/Counter0 – Compare Register A
88
0x17 (0x37)
OCR0B
Timer/Counter0 – Compare Register B
88
0x16 (0x36)
GPIOR2
General Purpose Register 2
23
0x15 (0x35)
GPIOR1
General Purpose Register 1
24
0x14 (0x34)
GPIOR0
General Purpose Register 0
0x13 (0x33)
PORTCR
–
–
–
–
–
BBMC
BBMB
BBMA
71
0x12 (0x32)
PUEA
PUEA7
PUEA6
PUEA5
PUEA4
PUEA3
PUEA2
PUEA1
PUEA0
71
0x11 (0x31)
PORTA
PORTA7
PORTA6
PORTA5
PORTA4
PORTA3
PORTA2
PORTA1
PORTA0
71
0x10 (0x30)
DDRA
DDA7
DDA6
DDA5
DDA4
DDA3
DDA2
DDA1
DDA0
71
0x0F (0x2F)
PINA
PINA7
PINA6
PINA5
PINA4
PINA3
PINA2
PINA1
PINA0
71
0x0E (0x2E)
PUEB
–
–
–
–
PUEB3
PUEB2
PUEB1
PUEB0
72
0x0D (0x2D)
PORTB
–
–
–
–
PORTB3
PORTB2
PORTB1
PORTB0
72
0x0C (0x2C)
DDRB
–
–
–
–
DDB3
DDB2
DDB1
DDB0
72
0x0B (0x2B)
PINB
–
–
–
–
PINB3
PINB2
PINB1
PINB0
72
0x0A (0x2A)
PUEC
–
–
PUEC5
PUEC4
PUEC3
PUEC2
PUEC1
PUEC0
72
0x09 (0x29)
PORTC
–
–
PORTC5
PORTC4
PORTC3
PORTC2
PORTC1
PORTC0
72
0x08 (0x28)
DDRC
–
–
DDC5
DDC4
DDC3
DDC2
DDC1
DDC0
72
0x07 (0x27)
PINC
–
–
PINC5
PINC4
PINC3
PINC2
PINC1
PINC0
72
0x06 (0x26)
ACSRA
ACD
ACBG
ACO
ACI
ACIE
ACIC
ACIS1
ACIS0
182
86
24
0x05 (0x25)
ACSRB
HSEL
HLEV
ACLP
–
ACCE
ACME
ACIRS1
ACIRS0
183
0x04 (0x24)
ADMUX
REFS1
REFS0
REFEN
ADC0EN
MUX3
MUX2
MUX1
MUX0
196
0x03 (0x23)
ADCSRA
ADEN
ADSC
ADATE
ADIF
ADIE
ADPS2
ADPS1
ADPS0
197
0x02 (0x22)
ADCSRB
VDEN
VDPD
–
–
ADLAR
ADTS2
ADTS1
ADTS0
199
0x01 (0x21)
ADCH
ADC Data Register High Byte
198
0x00 (0x20)
ADCL
ADC Data Register Low Byte
198
Note:
1.
2.
3.
For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses should never be written.
I/O Registers within the address range 0x00 - 0x1F are directly bit-accessible using the SBI and CBI instructions. In these registers, the value of single bits can
be checked by using the SBIS and SBIC instructions.
Some of the Status Flags are cleared by writing a logical one to them. Note that, unlike most other AVRs, the CBI and SBI instructions will only operation the
specified bit, and can therefore be used on registers containing such Status Flags. The CBI and SBI instructions work with registers 0x00 to 0x1F only.
ATtiny1634 [DATASHEET]
Atmel-8303HS-AVR-ATtiny1634-Summary_02/2014
8
6. Instruction Set Summary
Mnemonics
Operands
Description
Operation
Flags
#Clocks
ARITHMETIC AND LOGIC INSTRUCTIONS
ADD
Rd, Rr
Add two Registers
Rd Rd + Rr
Z,C,N,V,H
ADC
Rd, Rr
Add with Carry two Registers
Rd Rd + Rr + C
Z,C,N,V,H
1
ADIW
Rdl,K
Add Immediate to Word
Rdh:Rdl Rdh:Rdl + K
Z,C,N,V,S
2
SUB
Rd, Rr
Subtract two Registers
Rd Rd - Rr
Z,C,N,V,H
1
SUBI
Rd, K
Subtract Constant from Register
Rd Rd - K
Z,C,N,V,H
1
SBC
Rd, Rr
Subtract with Carry two Registers
Rd Rd - Rr - C
Z,C,N,V,H
1
SBCI
Rd, K
Subtract with Carry Constant from Reg.
Rd Rd - K - C
Z,C,N,V,H
1
SBIW
Rdl,K
Subtract Immediate from Word
Rdh:Rdl Rdh:Rdl - K
Z,C,N,V,S
2
AND
Rd, Rr
Logical AND Registers
Rd Rd Rr
Z,N,V
1
ANDI
Rd, K
Logical AND Register and Constant
Rd Rd K
Z,N,V
1
OR
Rd, Rr
Logical OR Registers
Rd Rd v Rr
Z,N,V
1
ORI
Rd, K
Logical OR Register and Constant
Rd Rd v K
Z,N,V
1
EOR
Rd, Rr
Exclusive OR Registers
Rd Rd Rr
Z,N,V
1
1
COM
Rd
One’s Complement
Rd 0xFF Rd
Z,C,N,V
1
NEG
Rd
Two’s Complement
Rd 0x00 Rd
Z,C,N,V,H
1
SBR
Rd,K
Set Bit(s) in Register
Rd Rd v K
Z,N,V
1
CBR
Rd,K
Clear Bit(s) in Register
Rd Rd (0xFF - K)
Z,N,V
1
INC
Rd
Increment
Rd Rd + 1
Z,N,V
1
DEC
Rd
Decrement
Rd Rd 1
Z,N,V
1
TST
Rd
Test for Zero or Minus
Rd Rd Rd
Z,N,V
1
CLR
Rd
Clear Register
Rd Rd Rd
Z,N,V
1
SER
Rd
Set Register
Rd 0xFF
None
1
BRANCH INSTRUCTIONS
JMP
k
Direct Jump
PC k
None
3
RJMP
k
Relative Jump
PC PC + k + 1
None
2
Indirect Jump to (Z)
PC Z
None
2
CALL
k
Direct Subroutine
PC k
None
4
RCALL
k
IJMP
Relative Subroutine Call
PC PC + k + 1
None
3
ICALL
Indirect Call to (Z)
PC Z
None
3
RET
Subroutine Return
PC STACK
None
4
RETI
Interrupt Return
PC STACK
I
4
CPSE
Rd,Rr
Compare, Skip if Equal
if (Rd = Rr) PC PC + 2 or 3
None
CP
Rd,Rr
Compare
Rd Rr
Z, N,V,C,H
1/2/3
1
CPC
Rd,Rr
Compare with Carry
Rd Rr C
Z, N,V,C,H
1
CPI
Rd,K
Compare Register with Immediate
Rd K
Z, N,V,C,H
SBRC
Rr, b
Skip if Bit in Register Cleared
if (Rr(b)=0) PC PC + 2 or 3
None
1/2/3
1
SBRS
Rr, b
Skip if Bit in Register is Set
if (Rr(b)=1) PC PC + 2 or 3
None
1/2/3
SBIC
P, b
Skip if Bit in I/O Register Cleared
if (P(b)=0) PC PC + 2 or 3
None
1/2/3
SBIS
P, b
Skip if Bit in I/O Register is Set
if (P(b)=1) PC PC + 2 or 3
None
1/2/3
BRBS
s, k
Branch if Status Flag Set
if (SREG(s) = 1) then PCPC+k + 1
None
1/2
BRBC
s, k
Branch if Status Flag Cleared
if (SREG(s) = 0) then PCPC+k + 1
None
1/2
BREQ
k
Branch if Equal
if (Z = 1) then PC PC + k + 1
None
1/2
BRNE
k
Branch if Not Equal
if (Z = 0) then PC PC + k + 1
None
1/2
BRCS
k
Branch if Carry Set
if (C = 1) then PC PC + k + 1
None
1/2
BRCC
k
Branch if Carry Cleared
if (C = 0) then PC PC + k + 1
None
1/2
BRSH
k
Branch if Same or Higher
if (C = 0) then PC PC + k + 1
None
1/2
BRLO
k
Branch if Lower
if (C = 1) then PC PC + k + 1
None
1/2
BRMI
k
Branch if Minus
if (N = 1) then PC PC + k + 1
None
1/2
BRPL
k
Branch if Plus
if (N = 0) then PC PC + k + 1
None
1/2
BRGE
k
Branch if Greater or Equal, Signed
if (N V= 0) then PC PC + k + 1
None
1/2
BRLT
k
Branch if Less Than Zero, Signed
if (N V= 1) then PC PC + k + 1
None
1/2
BRHS
k
Branch if Half Carry Flag Set
if (H = 1) then PC PC + k + 1
None
1/2
BRHC
k
Branch if Half Carry Flag Cleared
if (H = 0) then PC PC + k + 1
None
1/2
BRTS
k
Branch if T Flag Set
if (T = 1) then PC PC + k + 1
None
1/2
BRTC
k
Branch if T Flag Cleared
if (T = 0) then PC PC + k + 1
None
1/2
BRVS
k
Branch if Overflow Flag is Set
if (V = 1) then PC PC + k + 1
None
1/2
BRVC
k
Branch if Overflow Flag is Cleared
if (V = 0) then PC PC + k + 1
None
1/2
BRIE
k
Branch if Interrupt Enabled
if ( I = 1) then PC PC + k + 1
None
1/2
BRID
k
Branch if Interrupt Disabled
if ( I = 0) then PC PC + k + 1
None
1/2
BIT AND BIT-TEST INSTRUCTIONS
SBI
P,b
Set Bit in I/O Register
I/O(P,b) 1
None
2
CBI
P,b
Clear Bit in I/O Register
I/O(P,b) 0
None
2
LSL
Rd
Logical Shift Left
Rd(n+1) Rd(n), Rd(0) 0
Z,C,N,V
1
LSR
Rd
Logical Shift Right
Rd(n) Rd(n+1), Rd(7) 0
Z,C,N,V
1
ROL
Rd
Rotate Left Through Carry
Rd(0)C,Rd(n+1) Rd(n),CRd(7)
Z,C,N,V
1
ATtiny1634 [DATASHEET]
Atmel-8303HS-AVR-ATtiny1634-Summary_02/2014
9
Mnemonics
Operands
Description
Operation
Flags
#Clocks
ROR
Rd
Rotate Right Through Carry
Rd(7)C,Rd(n) Rd(n+1),CRd(0)
Z,C,N,V
1
ASR
Rd
Arithmetic Shift Right
Rd(n) Rd(n+1), n=0..6
Z,C,N,V
1
SWAP
Rd
Swap Nibbles
Rd(3..0)Rd(7..4),Rd(7..4)Rd(3..0)
None
1
BSET
s
Flag Set
SREG(s) 1
SREG(s)
1
BCLR
s
Flag Clear
SREG(s) 0
SREG(s)
1
BST
Rr, b
Bit Store from Register to T
T Rr(b)
T
1
BLD
Rd, b
Bit load from T to Register
Rd(b) T
None
1
SEC
Set Carry
C1
C
1
CLC
Clear Carry
C0
C
1
SEN
Set Negative Flag
N1
N
1
CLN
Clear Negative Flag
N0
N
1
SEZ
Set Zero Flag
Z1
Z
1
CLZ
Clear Zero Flag
Z0
Z
1
SEI
Global Interrupt Enable
I1
I
1
CLI
Global Interrupt Disable
I 0
I
1
SES
Set Signed Test Flag
S1
S
1
CLS
Clear Signed Test Flag
S0
S
1
SEV
Set Twos Complement Overflow.
V1
V
1
CLV
Clear Twos Complement Overflow
V0
V
1
SET
Set T in SREG
T1
T
1
CLT
Clear T in SREG
T0
T
1
SEH
CLH
Set Half Carry Flag in SREG
Clear Half Carry Flag in SREG
H1
H0
H
H
1
Rd Rr
Rd+1:Rd Rr+1:Rr
None
1
None
1
1
1
DATA TRANSFER INSTRUCTIONS
MOV
Rd, Rr
Move Between Registers
MOVW
Rd, Rr
Copy Register Word
LDI
Rd, K
Load Immediate
Rd K
None
LD
Rd, X
Load Indirect
Rd (X)
None
2
LD
Rd, X+
Load Indirect and Post-Inc.
Rd (X), X X + 1
None
2
2
LD
Rd, - X
Load Indirect and Pre-Dec.
X X - 1, Rd (X)
None
LD
Rd, Y
Load Indirect
Rd (Y)
None
2
LD
Rd, Y+
Load Indirect and Post-Inc.
Rd (Y), Y Y + 1
None
2
2
LD
Rd, - Y
Load Indirect and Pre-Dec.
Y Y - 1, Rd (Y)
None
LDD
Rd,Y+q
Load Indirect with Displacement
Rd (Y + q)
None
2
LD
Rd, Z
Load Indirect
Rd (Z)
None
2
LD
Rd, Z+
Load Indirect and Post-Inc.
Rd (Z), Z Z+1
None
2
LD
Rd, -Z
Load Indirect and Pre-Dec.
Z Z - 1, Rd (Z)
None
2
LDD
Rd, Z+q
Load Indirect with Displacement
Rd (Z + q)
None
2
LDS
Rd, k
Load Direct from SRAM
Rd (k)
None
2
ST
X, Rr
Store Indirect
(X) Rr
None
2
ST
X+, Rr
Store Indirect and Post-Inc.
(X) Rr, X X + 1
None
2
ST
- X, Rr
Store Indirect and Pre-Dec.
X X - 1, (X) Rr
None
2
ST
Y, Rr
Store Indirect
(Y) Rr
None
2
ST
Y+, Rr
Store Indirect and Post-Inc.
(Y) Rr, Y Y + 1
None
2
ST
- Y, Rr
Store Indirect and Pre-Dec.
Y Y - 1, (Y) Rr
None
2
STD
Y+q,Rr
Store Indirect with Displacement
(Y + q) Rr
None
2
ST
Z, Rr
Store Indirect
(Z) Rr
None
2
ST
Z+, Rr
Store Indirect and Post-Inc.
(Z) Rr, Z Z + 1
None
2
ST
-Z, Rr
Store Indirect and Pre-Dec.
Z Z - 1, (Z) Rr
None
2
STD
Z+q,Rr
Store Indirect with Displacement
(Z + q) Rr
None
2
STS
k, Rr
Store Direct to SRAM
(k) Rr
None
2
Load Program Memory
R0 (Z)
None
3
LPM
LPM
Rd, Z
Load Program Memory
Rd (Z)
None
3
LPM
Rd, Z+
Load Program Memory and Post-Inc
Rd (Z), Z Z+1
None
3
Store Program Memory
(z) R1:R0
None
IN
Rd, P
In Port
Rd P
None
OUT
P, Rr
Out Port
P Rr
None
1
PUSH
Rr
Push Register on Stack
STACK Rr
None
2
POP
Rd
Pop Register from Stack
Rd STACK
None
2
SPM
1
MCU CONTROL INSTRUCTIONS
NOP
No Operation
None
1
SLEEP
Sleep
(see specific descr. for Sleep function)
None
1
WDR
BREAK
Watchdog Reset
Break
(see specific descr. for WDR/Timer)
For On-chip Debug Only
None
None
1
N/A
ATtiny1634 [DATASHEET]
Atmel-8303HS-AVR-ATtiny1634-Summary_02/2014
10
7. Ordering Information
7.1
ATtiny1634
Speed (MHz) (1)
Supply Voltage (V)
Temperature Range
Package (2)
Accuracy (3)
Ordering Code (4)
±10%
ATtiny1634-MU
±2%
ATtiny1634R-MU
±10%
ATtiny1634-MUR
±2%
ATtiny1634R-MUR
±10%
ATtiny1634-SU
±2%
ATtiny1634R-SU
±10%
ATtiny1634-SUR
±2%
ATtiny1634R-SUR
±10%
ATtiny1634-MN
±10%
ATtiny1634-MNR
20M1
Industrial
(-40C to +85C)(5)
12
1.8 – 5.5
20S2
Extended
(-40C to +105C)(5)
Notes:
20M1
1. For speed vs. supply voltage, see section 24.3 “Speed” on page 229.
2. All packages are Pb-free, halide-free and fully green, and they comply with the European directive for Restriction of Hazardous Substances (RoHS).
3. Denotes accuracy of the internal oscillator. See Table 24-2 on page 230.
4. Code indicators:
– U: matte tin
– R: tape & reel
5. Can also be supplied in wafer form. Contact your local Atmel sales office for ordering information and minimum quantities.
Package Type
20M1
20-pad, 4 x 4 x 0.8 mm Body, Quad Flat No-Lead / Micro Lead Frame Package (QFN/MLF)
20S2
20-lead, 0.300" Wide Body, Plastic Gull Wing Small Outline Package (SOIC)
ATtiny1634 [DATASHEET]
Atmel-8303HS-AVR-ATtiny1634-Summary_02/2014
11
8. Packaging Information
8.1
20M1
D
1
Pin 1 ID
2
SIDE VIEW
E
3
TOP VIEW
A2
D2
A1
A
0.08
1
2
Pin #1
Notch
(0.20 R)
3
COMMON DIMENSIONS
(Unit of Measure = mm)
E2
b
L
e
BOTTOM VIEW
SYMBOL
MIN
NOM
MAX
A
0.70
0.75
0.80
A1
–
0.01
0.05
A2
b
D
D2
E2
L
0.23
0.30
4.00 BSC
2.45
2.60
2.75
4.00 BSC
2.45
e
Reference JEDEC Standard MO-220, Fig. 1 (SAW Singulation) WGGD-5.
NOTE
0.20 REF
0.18
E
Note:
C
2.60
2.75
0.50 BSC
0.35
0.40
0.55
12/02/2014
2325 Orchard Parkway
San Jose, CA 95131
TITLE
20M1, 20-pad, 4 x 4 x 0.8 mm Body, Lead Pitch 0.50 mm,
2.6 mm Exposed Pad, Micro Lead Frame Package (MLF)
DRAWING NO.
20M1
ATtiny1634 [DATASHEET]
Atmel-8303HS-AVR-ATtiny1634-Summary_02/2014
REV.
B
12
8.2
20S2
ATtiny1634 [DATASHEET]
Atmel-8303HS-AVR-ATtiny1634-Summary_02/2014
13
9. Errata
The revision letters in this section refer to the revision of the corresponding ATtiny1634 device.
9.1
ATtiny1634
9.1.1
Rev. C
• Port Pin Should Not Be Used As Input When ULP Oscillator Is Disabled
1. Port Pin Should Not Be Used As Input When ULP Oscillator Is Disabled
Port pin PB3 is not guaranteed to perform as a reliable input when the Ultra Low Power (ULP) oscillator is not
running. In addition, the pin is pulled down internally when ULP oscillator is disabled.
Problem Fix / Workaround
The ULP oscillator is automatically activated when required. To use PB3 as an input, activate the watchdog
timer. The watchdog timer automatically enables the ULP oscillator.
9.1.2
Rev. B
• Port Pin Should Not Be Used As Input When ULP Oscillator Is Disabled
1. Port Pin Should Not Be Used As Input When ULP Oscillator Is Disabled
Port pin PB3 is not guaranteed to perform as a reliable input when the Ultra Low Power (ULP) oscillator is not
running. In addition, the pin is pulled down internally when ULP oscillator is disabled.
Problem Fix / Workaround
The ULP oscillator is automatically activated when required. To use PB3 as an input, activate the watchdog
timer. The watchdog timer automatically enables the ULP oscillator.
9.1.3
Rev. A
• Flash / EEPROM Can Not Be Written When Supply Voltage Is Below 2.4V
• Port Pin Should Not Be Used As Input When ULP Oscillator Is Disabled
1. Flash / EEPROM Can Not Be Written When Supply Voltage Is Below 2.4V
When supply voltage is below 2.4V write operations to Flash and EEPROM may fail.
Problem Fix / Workaround
Do not write to Flash or EEPROM when supply voltage is below 2.4V.
2. Port Pin Should Not Be Used As Input When ULP Oscillator Is Disabled
Port pin PB3 is not guaranteed to perform as a reliable input when the Ultra Low Power (ULP) oscillator is not
running. In addition, the pin is pulled down internally when ULP oscillator is disabled.
Problem Fix / Workaround
The ULP oscillator is automatically activated when required. To use PB3 as an input, activate the watchdog
timer. The watchdog timer automatically enables the ULP oscillator.
ATtiny1634 [DATASHEET]
Atmel-8303HS-AVR-ATtiny1634-Summary_02/2014
14
XXXXXX
Atmel Corporation
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© 2014 Atmel Corporation. / Rev.: Atmel-8303HS-AVR-ATtiny1634-Summary_02/2014.
Atmel®, Atmel logo and combinations thereof, and others are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product
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DISCLAIMER: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right
is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN THE ATMEL TERMS AND CONDITIONS OF SALES LOCATED ON THE
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