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W78E51B - 8-BIT MTP MICROCONTROLLER

This page provides the datasheet information for the W78E51B, a member of the W78 8-BIT MTP MICROCONTROLLER family.

Datasheet Summary

Description

The W78E51B is an 8-bit microcontroller which can accommodate a wider frequency range with low power consumption.

The instruction set for the W78E51B is fully compatible with the standard 8051.

Features

  • Fully static design 8-bit CMOS microcontroller.
  • Wide supply voltage of 4.5V to 5.5V.
  • 128 bytes of on-chip scratchpad RAM.
  • 4 KB electrically erasable/programmable MTP-ROM.
  • 64 KB program memory address space.
  • 64 KB data memory address space.
  • Four 8-bit bi-directional ports.
  • One extra 4-bit bit-addressable I/O port, additional INT2 / INT3 (available on 44-pin PLCC/QFP package).
  • Two 16-bit timer/counters.
  • One.

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Datasheet preview – W78E51B

Datasheet Details

Part number W78E51B
Manufacturer Winbond
File Size 324.31 KB
Description 8-BIT MTP MICROCONTROLLER
Datasheet download datasheet W78E51B Datasheet
Additional preview pages of the W78E51B datasheet.

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Full PDF Text Transcription

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Preliminary W78E51B 8-BIT MTP MICROCONTROLLER GENERAL DESCRIPTION The W78E51B is an 8-bit microcontroller which can accommodate a wider frequency range with low power consumption. The instruction set for the W78E51B is fully compatible with the standard 8051. The W78E51B contains an 4K bytes MTP ROM (Multiple-Time Programmable ROM); a 128 bytes RAM; four 8-bit bi-directional and bit-addressable I/O ports; an additional 4-bit I/O port P4; two 16-bit timer/counters; a hardware watchdog timer and a serial port. These peripherals are supported by seven sources two-level interrupt capability. To facilitate programming and verification, the MTPROM inside the W78E51B allows the program memory to be programmed and read electronically.
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