P87LPC779

· An accelerated 80C51 CPU provides instruction cycle times of 300 ns to 600 ns for all instructions except multiply and divide when executing at 20 MHz.
· 2.7 V to 5.5 V operating range for digital functions.
· Two 8-bit Digital to Analog Converters.
· Four channel, 8-bit Analog to Digital Converter. Conversion time is 9.3 ms with a 20 MHz crystal.
· I²C-bus communication port and Full duplex UART.
· Internal oscillator 2.5 %. The internal oscillator option allows operation with no external oscillator components.
· Two analog comparators.
· Eight keypad interrupt inputs, plus two additional external interrupt inputs.
· Watchdog timer with separate on-chip oscillator, requiring no external components. The Watchdog time-out time is selectable from eight values.
· 20-pin TSSOP package.