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DESCRIPTION

The Philips 8XC550 is a high-performance microcontroller fabricated with Philips high-density CMOS technology. This Philips CMOS technology combines the high speed and density characteristics of HMOS with the low power attributes of CMOS. Philips epitaxial substrate minimizes latch-up sensitivity. The CMOS 8XC550 has the same instruction set as the 80C51.

The 8XC550 contains a 4k × 8 EPROM (87C550)/ROM (83C550)/ROMless (80C550 has no program memory on-chip), a 128 × 8 RAM, 8 channels of 8-bit A/D, four 8-bit ports (port 1 is input only), a watchdog timer, two 16-bit counter/timers, a seven-source, two-priority level nested interrupt structure, a serial I/O port for either multi-processor communications, I/O expansion or full duplex UART, and an on-chip oscillator and clock circuits.

FEATURES

? 80C51 based architecture

– 4k × 8 EPROM (87C550)/ROM (83C550)

– 128 × 8 RAM

– Eight channels of 8-bit A/D

– Two 16-bit counter/timers

– Watchdog timer

– Full duplex serial channel

– Boolean processor

? Memory addressing capability

– 64k ROM and 64k RAM

? Power control modes:

– Idle mode

– Power-down mode

? CMOS and TTL compatible

? One speed range at VCC = 5V ±10

– 3.5 to 16MHz

? Extended temperature ranges

? OTP package available