Описание
The P87LPC769 is a 20-pin single-chip microcontroller designed for low pin count applications demanding high-integration, low cost solutions over a wide range of performance requirements. A member of the Philips low pin count family, the P87LPC769 offers programmable oscillator configurations for high and low speed crystals or RC operation, wide operating voltage range, programmable port output configurations, selectable Schmitt trigger inputs, LED drive outputs, and a built-in watchdog timer. The P87LPC769 is based on an accelerated 80C51 processor architecture that executes instructions at twice the rate of standard 80C51 devices.
- Four-channel multiplexed 8-bit A/D converter. Conversion time of 9.3 µS at fosc = 20 MHz.
- Two Digital to Analog Converter (DAC) outputs. (One D/A output shared with the A/D).
- 4 Kbytes EPROM code memory.
- 128 byte RAM data memory.
- 32-byte customer code EPROM allows serialization of devices, storage of setup parameters, etc.
- Two 16-bit counter/timers. Each timer may be configured to toggle a port output upon timer overflow.
- Two analog comparators.
- Full duplex UART.
- I2C communication port.
- Eight keypad interrupt inputs, plus two additional external interrupt inputs.
- Four interrupt priority levels.
- Selectable Schmitt trigger port inputs.
- LED drive capability (20 mA) on all port pins.
