ATMEGA328-PU DIP-28 20MHz Microcontroller

High performance Microchip 8-bit AVR® RISC based microcontroller, 32 KB Integrates ISP Flash memory with read-on-write capabilities, 1 KB EEPROM, 2 KB SRAM, 23 general-purpose I/O lines, 32 general-purpose working registers, comparison modes, internal and external interrupts, serial programmable USART, byte-oriented Two-Wire serial interface , SPI serial port, three flexible timers/counters with 6-channel 10-bit A/D converter (8-channel 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.

Technical Specifications

Product Code	ATMEGA328-PU
Program Memory Type	Flash
Program Memory Size	32kB
Bus Width	8-Bit
Max Clock Frequency	20 MHz
Data RAM Size	2 kB
I/O Count	23
ADC Resolution	10 bit
Operating Voltage Range (V)	1.8 - 5.5V
Number of Pins	28

ATMEGA328 Datasheet