ATMEGA168PA-PU DIP-28 20MHz Microcontroller

High performance Microchip picoPower® 8-bit AVR® RISC based microcontroller, Combines 16 KB ISP flash memory with read-as-write capabilities, 512B EEPROM, 1 KB SRAM, 23 general-purpose I/O lines, 32 general-purpose work registers, three flexible timers/counters with comparison mode, internal and external interrupts, serial programmable USART, byte-oriented Two-Wire serial interface, SPI serial port, 6-channel 10-bit A/D converter (8 channels in TQFP and QFN/MLF packages), programmable watchdog timer with internal oscillator, and five software-selectable power-saving modes. The device operates between 1.8-5.5 volts.