NXP Semiconductors 87LPC760
The P87LPC760 is a 14-pin single-chip microcontroller designed for low pin count applications demanding high-integration, low cost solutions over a wide range of performance requirements. The P87LPC760 is based on an accelerated 80C51 processor architecture that executes instructions at twice the rate of standard 80C51 devices.GENERAL DESCRIPTION
A member of the Philips low pin count family, the P87LPC760 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.FEATURES
● An accelerated 80C51 CPU provides instruction cycle times of 300–600 ns for all instructions except multiply and divide when executing at 20 MHz. Execution at up to 20 MHz when VDD = 4.5 V to 6.0 V, 10 MHz when VDD = 2.7 V to 6.0 V● 2.7 V to 6.0 V operating range for digital functions
● 1 kbyte 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. One timer may be configured to toggle a port output upon timer overflow
● One analog comparator
● Full duplex UART
● I2C communication port
● Four keypad interrupt inputs, plus one additional external interrupt input
● Four interrupt priority levels
● Watchdog timer with separate on-chip oscillator, requiring no external components.