Part Number: SST89E58RD2-40-I-NJE Manufacturer: Microchip Description: 8- bit Microcontrollers (MCU) 4.5-5.5 V FL Flex 8B 8051 Microcontroller Specifications: Clock Frequency Max: 40 MHz Core: FlashFlex Data Bus Width: 8 bit Height: 4.01 mm (Max) ...