Pin Configurations; Overview - Atmel ATtiny25 Manual

1. Pin Configurations

Figure 1-1. Pinout ATtiny25/45/85
(PCINT4/XTAL2/CLKO/OC1B/ADC2) PB4

2. Overview

ATtiny25/45/85
2
(PCINT5/RESET/ADC0/dW) PB5
(PCINT3/XTAL1/OC1B/ADC3) PB3
GND
The ATtiny25/45/85 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced
RISC architecture. By executing powerful instructions in a single clock cycle, the ATtiny25/45/85
achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize
power consumption versus processing speed.
SOIC
1 8 VCC
2 7 PB2 (SCK/USCK/SCL/ADC1/T0/INT0/PCINT2)
3 6 PB1 (MISO/DO/AIN1/OC0B/OC1A/PCINT1)
4 5 PB0 (MOSI/DI/SDA/AIN0/OC0A/OC1A/AREF/PCINT0)
7598H–AVR–07/09