S87C654

INTEGRATED CIRCUITS 87C654 CMOS single-chip 8-bit microcontroller Product specification IC20 Data Handbook 1996 Aug 16 Philips Semiconductors Philips Semiconductors CMOS single-chip 8-bit microcontroller Product specification 87C654 DESCRIPTION The 87C654 Single-Chip 8-Bit Microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. The 87C654 has the same instruction set as the 80C51. Two versions of the derivative exist: 83C654—16k bytes mask programmable ROM 87C654—EPROM version This device provides architectural enhancements that make it applicable in a variety of applications for general control systems. The 87C654 contains a non-volatile 16k × 8 EPROM, a volatile 256 × 8 read/write data memory, four 8-bit I/O ports, two 16-bit timer/event counters (identical to the timers of the 80C51), a multi-source, two-priority-level, nested interrupt structure, an I2C interface, UART and on-chip oscillator and timing circui...