P87LPC778

www.DataSheet4U.com P87LPC778 CMOS single-chip 8-bit 80C51 microcontroller with 128-byte data RAM, 8 kB OTP Rev. 01 — 31 March 2004 Product data 1. General description The P87LPC778 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 P87LPC778 offers a 4 channel, 8-bit A/D converter, 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 P87LPC778 is based on an accelerated 80C51 processor architecture that executes instructions at twice the rate of standard 80C51 devices. 2. Features s 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. s 2.7 V to 5.5 V operating range for digital functions. s Four channel, 10-bit Pulse Width Modulator. s Four channel, 8-bit Analog to Digital Converter. Conversion time is 9.3 µs with a 20 MHz crystal. s I2C-bus communication port and Full duplex UART. s Internal oscillator 2.5 %. The internal oscillator option allows operation with no external oscillator components. s Two analog comparators. s Eight keypad interrupt inputs, plus two additional external interrupt inputs. s Watchdog tim...