AT89C51RB2-3CSUL Atmel

Description: IC MCU 8BIT 16KB FLASH 40PDIL, Packaging: Bulk, Package / Case: 40-DIP (0.600", 15.24mm), Mounting Type: Through Hole, Speed: 40MHz, Program Memory Size: 16KB (16K x 8), RAM Size: 1.25K x 8, Operating Temperature: -40°C ~ 85°C (TA), Oscillator Type: External, Program Memory Type: FLASH, Core Processor: 80C51, Core Size: 8-Bit, Voltage - Supply (Vcc/Vdd): 2.7V ~ 3.6V, Connectivity: SPI, UART/USART, Peripherals: POR, PWM, WDT, Supplier Device Package: 40-PDIL, Part Status: Active, Number of I/O: 32, DigiKey Programmable: Not Verified.