TEP

AI Interactive Datasheet ATtiny261

AVR · tinyAVR

ATtiny261 peripherals

Each block of the ATtiny261: what it is, the registers that control it and the pins it uses.

CPU

CPU

CPU Registers

Registers

GPIOR00x2A GPIOR10x2B GPIOR20x2C DWDR0x40 CLKPR0x48 PLLCSR0x49 OSCCAL0x51 MCUSR0x54 MCUCR0x55 PRR0x56 SPL0x5D SREG0x5F

PORTA

PORT

I/O Port

Registers

PINA0x39 DDRA0x3A PORTA0x3B

PORTB

PORT

I/O Port

Registers

PINB0x36 DDRB0x37 PORTB0x38

EXINT

EXINT

External Interrupts

Registers

PCMSK10x42 PCMSK00x43 MCUCR0x55 GIFR0x5A GIMSK0x5B

Pins

PCINT0PA0 PCINT1PA1 INT1PA2 PCINT2PA2 PCINT3PA3 PCINT4PA4 PCINT5PA5 PCINT6PA6 PCINT7PA7 PCINT8PB0 PCINT9PB1 PCINT10PB2 PCINT11PB3 PCINT12PB4 PCINT13PB5 INT0PB6 PCINT14PB6 PCINT15PB7

TC0

TC8

Timer/Counter, 8-bit

Registers

OCR0B0x32 OCR0A0x33 TCNT0H0x34 TCCR0A0x35 TCNT0L0x52 TCCR0B0x53 TIFR0x58 TIMSK0x59

Pins

TC1

TC8

Timer/Counter, 8-bit

Registers

TCCR1E0x20 DT10x44 TC1H0x45 TCCR1D0x46 TCCR1C0x47 OCR1D0x4A OCR1C0x4B OCR1B0x4C OCR1A0x4D TCNT10x4E TCCR1B0x4F TCCR1A0x50 TIFR0x58 TIMSK0x59

Pins

~OC1APB0 OC1APB1 ~OC1BPB2 OC1BPB3 ~OC1DPB4 OC1DPB5

USI

USI

Universal Serial Interface

Registers

USICR0x2D USISR0x2E USIDR0x2F USIBR0x30 USIPP0x31

Pins

DIPA0 SDAPA0 DOPA1 SCL PA2 USCKPA2 DIPB0 SDAPB0 DOPB1 SCLPB2 USCKPB2

ADC

ADC

Analog-to-Digital Converter

Registers

DIDR00x21 DIDR10x22 ADCSRB0x23 ADC0x24 ADCSRA0x26 ADMUX0x27

Pins

ADC0PA0 ADC1PA1 ADC2PA2 AREFPA3 ADC3PA4 ADC4PA5 ADC5PA6 ADC6PA7 ADC7PB4 ADC8PB5 ADC9PB6 ADC10PB7

AC

AC

Analog Comparator

Registers

ACSRA0x28 ACSRB0x29

Pins

AIN2PA5 AIN1PA6 AIN0PA7

EEPROM

EEPROM

EEPROM

Registers

EECR0x3C EEDR0x3D EEAR0x3E

WDT

WDT

Watchdog Timer

Registers