ATmega164P-324P-644P
16K/32K/64K Bytes of In-System Self-programmable Flash program memory
512B/1K/2K Bytes EEPROM
1K/2K/4K Bytes Internal SRAM
16K/32K/64K Bytes of In-System Self-programmable Flash program memory
512B/1K/2K Bytes EEPROM
1K/2K/4K Bytes Internal SRAM