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DESCRIPTION

The Philips 83C749/87C749 offers many of the advantages of the 80C51 architecture in a small package and at low cost.

The 8XC749 Microcontroller is fabricated with Philips high-density CMOS technology. Philips epitaxial substrate minimizes CMOS latch-up sensitivity.

The 8XC749 contains a 2k × 8 ROM (83C749) EPROM (87C749), a 64 × 8 RAM, 21 I/O lines, a 16-bit auto-reload counter/timer, a fixed-priority level interrupt structure, an on-chip oscillator, a five channel multiplexed 8-bit A/D converter, and an 8-bit PWM output.

FEATURES

? Available in erasable quartz lid or One-Time Programmable plastic packages

? 80C51 based architecture

? Small package sizes

– 28-pin DIP

– 28-pin Shrink Small Outline Package (SSOP)

– 28-pin PLCC

? Wide oscillator frequency range: 3.5MHz to 16MHz

? Low power consumption:

– Normal operation: less than 11mA @ 5V, 12MHz

– Idle mode

– Power-down mode

? 2k × 8 ROM (83C749) EPROM (87C749)

? 64 × 8 RAM

? 16-bit auto reloadable counter/timer

? 5-channel 8-bit A/D converter

? 8-bit PWM output/timer

? 10-bit fixed-rate timer

? Boolean processor

? CMOS and TTL compatible

? Well suited for logic replacement, consumer and industrial applications