Model:SST89E58RD2-40-I-NJE BRAND:Microchip description:IC MCU 8BIT 40KB FLASH 44PLCC pack:Pipe fittings SERIES:FlashFlex? status:Discontinued Core processor:8051 Core specifications:8-bit Speed:40MHz Peripherals:Undervoltage detection/reset,POR,WDT I/O number:36 Program storage capacity:40KB(40K x 8) Program memory type:Flash memory EEPROM capacity:- RAM size:1K x 8 Voltage - powered by:4.5V ~ 5.5V Data converter:- Oscillator type:外部 Operating temperature:-40°C ~ 85°C(TA) Type of installation:Surface mount type Encapsulation/Shell:44-LCC(J lead) Supplier device packaging:44-PLCC(16.59x16.59)