Model:SST89E54RD2A-40-C-TQJE-T BRAND:Microchip description:IC MCU 8BIT 24KB FLASH 44TQFP pack:tape(TR) 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:24KB(24K 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:0°C ~ 70°C Type of installation:Surface mount type Encapsulation/Shell:44-TQFP Supplier device packaging:44-TQFP(10x10)