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W78E51B - 8-BIT MTP MICROCONTROLLER

Download the W78E51B datasheet PDF. This datasheet also covers the W78 variant, as both devices belong to the same 8-bit mtp microcontroller family and are provided as variant models within a single manufacturer datasheet.

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.

Key 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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (W78-E51B.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number W78E51B
Manufacturer Winbond
File Size 324.31 KB
Description 8-BIT MTP MICROCONTROLLER
Datasheet download datasheet W78E51B Datasheet

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Other Datasheets by Winbond

Part Number Description
W78E516B 8-BIT MICROCONTROLLER
W78E51C 8-BIT MICROCONTROLLER
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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.