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UM8253-5 - Programmable Interval Timer

Download the UM8253-5 datasheet PDF. This datasheet also covers the UM8253 variant, as both devices belong to the same programmable interval timer family and are provided as variant models within a single manufacturer datasheet.

General Description

The UM8253 is a programmable counter timer device designed for use as an microcomputer peripheral.

It uses NMOS technology with a single +5V supply and is packaged in a 24-pin plastic DIP.

It is organized as 3 independent 16-bit counters, each with a count rate of up to 2.6 MHz.

Key Features

  • MCS-85™ compatible UM8253-5.
  • 3 independent 16-bit counters.
  • DC to 2.6 MHz.
  • Programmable counter modes.
  • Count binary or BCD.
  • Single +5V supply General.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UM8253-UMC.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number UM8253-5
Manufacturer UMC
File Size 476.01 KB
Description Programmable Interval Timer
Datasheet download datasheet UM8253-5 Datasheet

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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
(l)UMC UM8253/ UM8253-5 Features • MCS-85™ compatible UM8253-5 • 3 independent 16-bit counters • DC to 2.6 MHz • Programmable counter modes • Count binary or BCD • Single +5V supply General Description The UM8253 is a programmable counter timer device designed for use as an microcomputer peripheral. It uses NMOS technology with a single +5V supply and is packaged in a 24-pin plastic DIP. It is organized as 3 independent 16-bit counters, each with a count rate of up to 2.6 MHz. All modes of operation are software programmable. *MCS-85™ is the trademark of Intel microsystem. Pin Configuration Block Diagram 07 06 Os 04 03 O2 0, 00 ClK 0 OUT 0 GATE 0 GNO VCC WR RO CS Al Ao ClK 2 OUT.2 GATE 2 ClK 1 GATE 1 OUT 1 .