8XC562

INTEGRATED CIRCUITS 80C51 FAMILY DERIVATIVES 8XC552/562 overview 1996 Aug 06 Philips Semiconductors Philips Semiconductors 80C51 Family Derivatives 8XC552/562 overview 8XC552 OVERVIEW The 8XC552 is a stand-alone high-performance microcontroller designed for use in real-time applications such as instrumentation, industrial control, and automotive control applications such as engine management and transmission control. The device provides, in addition to the 80C51 standard functions, a number of dedicated hardware functions for these applications. The 8XC552 single-chip 8-bit microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. The 8XC552 uses the powerful instruction set of the 80C51. Additional special function registers are incorporated to control the on-chip peripherals. Three versions of the derivative exist although the generic term “8XC552” is used to refer to family members: 83C552: 8k bytes mask-programmable ROM, 256 bytes RAM 87C552: 8k bytes EPROM, 256 bytes RAM 80C552: ROMless version of the 83C552 The 8XC552 contains a nonvolatile 8k × 8 read-only program memory, a volatile 256 × 8 read/write data memory, five 8-bit I/O ports and one 8-bit input port, two 16-bit timer/event counters (identical to the timers of the 80C51), an additional 16-bit timer coupled to capture and compare latches, a fifteen-source, two-priority-level, nested interrupt structure, an 8-input ADC, a dual DAC pulse width modul...