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