Model:P89LV51RD2BBC,557 BRAND:NXP SERIES:89LV pack:tray Part status:Discontinued Core processor:8051 speed:33MHz Coprocessor/DSP:SPI,UART/USART RAM Controller:Undervoltage detection/reset,POR,PWM,WDT Voltage:2.7V ~ 3.6V Operating temperature:- Safety features:interior Encapsulation/Shell:0°C ~ 70°C(TA) Supplier device packaging:Surface mount type description:IC MCU 8BIT 64KB FLASH 44TQFP