ATmega325PA Datasheet | Atmel

Atmel ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P 8-bit Atmel Microcontroller with 16/32/64KB In-System Programmable Flash Features - High performance, low power Atmel® AVR® 8-Bit Microcontroller - Advanced RISC architecture - 130 powerful instructions - most single clock cycle execution - 32 × 8 general purpose working registers - Fully static operation - Up to 16MIPS throughput at 16MHz (Atmel ATmega165PA/645P) - Up to 20MIPS throughput at 20MHz (Atmel ATmega165A/325A/325PA/645A/3250A/3250PA/6450A/6450P) - On-chip 2-cycle multiplier - High endurance non-volatile memory segments - In-system self-programmable flash program memory - 16KBytes (ATmega165A/ATmega165PA) - 32KBytes (ATmega325A/ATmega325PA/ATmega3250A/ATmega3250PA) - 64KBytes (ATmega645A/ATmega645P/ATmega6450A/ATmega6450P) - EEPROM - 512Bytes (ATmega165A/ATmega165PA) - 1Kbytes (ATmega325A/ATmega325PA/ATmega3250A/ATmega3250PA) - 2Kbytes (ATmega645A/ATmega645P/ATmega6450A/ATmega6450P) - Internal SRAM - 1KBytes (ATmega165A/ATmega165PA) - 2KBytes (ATmega325A/ATmega325PA/ATmega3250A/ATmega3250PA) - 4KBytes (ATmega645A/ATmega645P/ATmega6450A/ATmega6450P) - Write/erase cycles: 10,000 flash/100,000 EEPROM - Data retention: 20 years at 85°C/100 years at 25°C (1) - Optional Boot Code Section with Independent Lock Bits - In-System Programming by On-chip Boot...