Model:AT89LS53-12JI BRAND:Microchip description:IC MCU 8BIT 12KB FLASH 44PLCC pack:Pipe fittings SERIES:89LS status:Discontinued Core processor:8051 Core specifications:8-bit Speed:12MHz Peripherals:POR,WDT I/O number:32 Program storage capacity:12KB(12K x 8) Program memory type:Flash memory EEPROM capacity:- RAM size:256 x 8 Voltage - powered by:2.7V ~ 6V Data converter:- Oscillator type:bosom Operating temperature:-40°C ~ 85°C(TA) Type of installation:Surface mount type Encapsulation/Shell:44-LCC(J lead) Supplier device packaging:44-PLCC(16.6x16.6)