87C524

INTEGRATED CIRCUITS 87C524/87C528 80C51 8-bit microcontrollers 16K/32K, 512 OTP, I2C, watchdog timer Product specification Replaces data sheets 87C524 of 1998 May 01 and 87C528 of 1998 May 01 1999 Jul 23 IC28 Data Handbook Philips Semiconductors Philips Semiconductors Product specification 80C51 8-bit microcontrollers 16K/32K, 512 OTP, I2C, watchdog timer 87C524/87C528 FEATURES 80C51 instruction set – 512 × 8 RAM – Memory addressing capability 64k ROM and 64k RAM – Three 16-bit counter/timers – On-chip watchdog timer with oscillator – Full duplex UART – I2C serial interface DESCRIPTION The 87C528 single-chip 8-bit microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. The 87C528 has the same instruction set as the 80C51. Three versions of the derivative exist: Power control modes: – Idle mode – Power-down mode – Warm start from power-down 83C528—32k bytes ROM 83C524—16k bytes ROM 80C528—ROMless version of the 83C528 87C528—32k bytes EPROM 83C524—16k bytes EPROM CMOS and TTL compatible Extended temperature ranges EPROM code protection OTP package available 16 MHz speed at VCC = 5 V This device provides architectural enhancements that make it applicable in a variety of applications in consumer, telecom and general control systems, especially in those systems which need large ROM and RAM capacity on-chip. The 87C528 contains a 32k × 8 EPROM and the 87C524 contains a 16k x 8 EPROM...