Hitachi HD74LS162A Synchronous Decade Counter Datasheet

This document describes the features and characteristics of electronic components produced by Hitachi, including their dimensions, weight, materials, and interfaces.


Hitachi HD74LS162A Synchronous Decade Counter Datasheet - cover page
Brand
HD74LS162A
Category
Chips
Document type
Datasheet
Language
English
Pages
7
File format
PDF
File size
118 KB
Published
05 June, 2012
Updated
28 September, 2023
MD5 checksum
2DCD8409865A8D1245E401C500BE0A5B

About this manual

This document describes the HD74LS162A, a synchronous decade counter designed with an internal carry look-ahead circuit for high-speed counting applications. The device features four flip-flops clocked simultaneously to eliminate output spikes associated with asynchronous counters, allowing for cascading without additional gating.

The datasheet provides detailed electrical and switching characteristics, including maximum clock frequency of 25 MHz, typical propagation delays, and operating conditions. It also includes pin arrangements, block diagrams, recommended operating sequences for clear and load functions, and mechanical dimensions for various package types.

What's inside

  • Synchronous Operation
  • Pin Arrangement
  • Block Diagram
  • Operating Conditions
  • Electrical Characteristics
  • Switching Characteristics
  • Testing Method
  • Package Dimensions

Specifications

Maximum clock frequency25 MHz
Maximum clock pulse width35 ns

Frequently asked questions

What is the maximum operating frequency of this counter?

The maximum clock frequency is 25 MHz.

How does the clear function operate?

A low level at the clear input sets all four flip-flop outputs low after the next clock pulse.

Is this device radiation resistant?

No, this product is not designed to be radiation resistant.

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