8-bit MCU; 16kB-FL; 1kB-SRAM; 512B-EE; 23 I/O; 1.8V~5.5V; 20MHz; A/D; USART; SPI; TWI; -40°C ~ 85°C;, Vastine: ATMEGA168-20AU; ATMEGA168P-20AU; ATMEGA168V-10AU; ATMEGA168A-AU; ATMEGA168PA-AUR; ATMEGA168PA-AU-T;