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W78C54 - 8-BIT MICROCONTROLLER

General Description

The W78C54 is a derivative of the W78C52 microcontroller family that provides extended internal ROM.

The chip has 16K bytes of mask ROM and 256 bytes of RAM.

Key Features

  • DC to 40 MHz extensive operating frequency.
  • 256-byte on-chip scratch pad RAM.
  • 16K-byte on-chip mask ROM.
  • 64K-byte address space for external Program Memory.
  • 64K-byte address space for external Data Memory.
  • Three 16-bit timer/counters.
  • Four 8-bit bit-addressable I/O ports.
  • One extra 4-bit bit-addressable I/O port, additional INT2/ INT3 (Avail.

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Datasheet Details

Part number W78C54
Manufacturer Winbond
File Size 272.69 KB
Description 8-BIT MICROCONTROLLER
Datasheet download datasheet W78C54 Datasheet

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.

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W78C54 8-BIT MICROCONTROLLER GENERAL DESCRIPTION The W78C54 is a derivative of the W78C52 microcontroller family that provides extended internal ROM. The chip has 16K bytes of mask ROM and 256 bytes of RAM. This device provides an enhanced architecture that makes it more powerful and suitable for a variety of applications for general control systems. It provides on-chip 16KB mask ROM to accommodate large program codes, 256-bytes of non-volatile on-chip RAM, four 8-bit I/O ports, one 4-bit I/O port, three 16-bit timer/counters, eight sources with two-level interrupt structures, and on-chip oscillator clock circuits.