83C749 datasheet(2/22 Pages) PHILIPS

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Philips Semiconductors

Preliminary specification

83C749/87C749

80C51 8-bit microcontroller family

2K/64 OTP/ROM, 5 channel 8-bit A/D, PWM, low pin count

1998 Apr 23

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

× 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.

The EPROM version of this device, the 87C749, is available in

plastic one-time programmable (OTP) packages. Once the array

has been programmed, it is functionally equivalent to the masked

ROM 83C749. Thus, unless explicitly stated otherwise, all

references made to the 83C749 apply equally to the 87C749.

The 83C749 supports two power reduction modes of operation

referred to as the idle mode and the power-down mode.

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

PART NUMBER SELECTION

ROM

EPROM1

TEMPERATURE RANGE

°C

AND PACKAGE

FREQUENCY

DRAWING

NUMBER

P83C749EBP N

P87C749EBP N

OTP

0 to +70, 28-pin Plastic Dual In-line Package

3.5 to 16MHz

SOT117-2

P83C749EBA A

P87C749EBA A

OTP

0 to +70, 28-pin Plastic Leaded Chip Carrier

3.5 to 16MHz

SOT261-3

P83C749EBD DB

P87C749EBD DB

OTP

0 to +70, 28-pin Shrink Small Outline Package

3.5 to 16MHz

SOT341-1

NOTE:

1. OTP = One Time Programmable EPROM.

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