W78C32BP40 Winbond, W78C32BP40 Datasheet

W78C32BP40

Manufacturer Part Number

W78C32BP40

Description

PLCC

Manufacturer

Winbond

Datasheet

1.W78C32BP40.pdf (16 pages)

Specifications of W78C32BP40

Date_code

04+

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GENERAL DESCRIPTION

The W78C32B microcontroller supplies a wider frequency range than most 8-bit microcontrollers on

the market. It is compatible with the industry standard 80C32 microcontroller series.

The W78C32B contains four 8-bit bidirectional parallel ports, three 16-bit timer/counters, and a serial

port. These peripherals are supported by a six-source, two-level interrupt capability. There are 256

bytes of RAM, and the device supports ROMless operation for application programs.

The W78C32B microcontroller has two power reduction modes, idle mode and power-down mode,

both of which are software selectable. The idle mode turns off the processor clock but allows for

continued peripheral operation. The power-down mode stops the crystal oscillator for minimum power

consumption. The external clock can be stopped at any time and in any state without affecting the

processor.

FEATURES

8-bit CMOS microcontroller

Fully static design

Low standby current at full supply voltage

DC-40 MHz operation

256 bytes of on-chip scratchpad RAM

ROMless operation

64K bytes program memory address space

64K bytes data memory address space

Four 8-bit bidirectional ports

Three 16-bit timer/counters

One full duplex serial port

Boolean processor

Six-source, two-level interrupt capability

Built-in power management

Packages:

DIP 40: W78C32B-16/24/40

PLCC 44: W78C32BP-16/24/40

QFP 44: W78C32BF-16/24/40

TQFP 44: W78C32BM-16/24/40

8-BIT MICROCONTROLLER

- 1 -

Publication Release Date: October 1997

W78C32B

Revision A3

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