ATtiny2313A-SU

Specification:
Power supply: 
for 0 - 4 MHz: 1.8 V - 5.5 V
for 0 - 10 MHz: 2.7 V - 5.5 V
for 0 - 20 MHz: 4.5 V - 5.5 V
Clock to 20 MHz
Flash memory: 2 MB
RAM Memory Storage Capacity: 128 B
The memory of the EEPROM 128 B
One 8-bit counter
One 16-bit counter
Four PWM channels
Hardware interfaces: USART, SPI
Case: SO-20 (SMD)
 
Description
Microcontroller from Atmel AVR family of the 20-leg casing surface soldered - SMD. Powered voltage range from 2.7 V to 5.5 V, clocked clock signal frequency to 20 MHz. It has 2 KB of Flash memory, 128 B RAM, 128 B EEPROM.