The Atmel picoPower 8-bit AVR RISC-based microcontroller featuring 1KB of ISP Flash, 64-byte EEPROM, 64-byte SRAM, 32-Byte register file, and 4-channel 10-bit A/D converter. The device achieves up to 20 MIPS throughput at 20 MHz at 1.8-5.5 V operation.

By executing powerful instructions in a single clock cycle, the ATtiny13A achieves throughputs approaching 1 MIPS per MHz allowing you to optimize power consumption versus processing speed.

Features:

• Flash (Kbytes):1 Kbytes

• Pin Count:8

• Max. Operating Freq. (MHz):20 MHz

• CPU:8-bit AVR

• Hardware QTouch Acquisition:No

• Max I/O Pins:6

• Ext Interrupts:6

• USB Speed:No

• USB Interface:No

• Graphic LCD:No

Datasheet:

http://www.atmel.com/Images/doc8126.pdf

How to Program ATTiny 13A from Arduino IDE using Arduino