AT90S4414-8JC .

Description: IC MCU 8BIT 4KB FLASH 44PLCC, Packaging: Tube, Package / Case: 44-LCC (J-Lead), Mounting Type: Surface Mount, Speed: 8MHz, Program Memory Size: 4KB (2K x 16), RAM Size: 256 x 8, Operating Temperature: 0°C ~ 70°C, Oscillator Type: Internal, Program Memory Type: FLASH, EEPROM Size: 256 x 8, Core Processor: AVR, Core Size: 8-Bit, Voltage - Supply (Vcc/Vdd): 4V ~ 6V, Connectivity: SPI, UART/USART, Peripherals: PWM, WDT, Supplier Device Package: 44-PLCC (16.6x16.6), Number of I/O: 32, DigiKey Programmable: Not Verified.