Summary
The ATtiny85 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.
Specification
CPU:8-bit AVR
Flash:8 Kbyte
Maximum Programmable I/O lines:6
EEPROM:512 Bytes
Operating Voltage:2.7-5.5V