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W78L54 Datasheet 8-BIT MICROCONTROLLER

Manufacturer: Winbond

Download the W78L54 datasheet PDF. This datasheet also includes the W78 variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (W78-L54.pdf) that lists specifications for multiple related part numbers.

General Description

The W78L54 microcontroller supplies a wider frequency and supply voltage range than most 8-bit microcontrollers on the market.

It is compatible with the industry standard 80C54 microcontroller series.

The W78L54 contains four 8-bit bidirectional parallel ports, one extra 4-bit bit-addressable I/O port (Port 4) and two additional external interrupts ( INT2 , INT3 ), three 16-bit timer/counters, one watchdog timer and a serial port.

Overview

W78L54 8-BIT MICROCONTROLLER GENERAL.

Key Features

  • Fully static design.
  • Supply voltage of 1.8V to 5.5V.
  • DC-24 MHz operation.
  • 256 bytes of on-chip scratchpad RAM.
  • 16K bytes of on-chip mask ROM.
  • 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.
  • Eight-source, two-level interrupt capability.
  • One extra 4-bit bit-addressable I/O.