Fairchild Semiconductor 74F160A/74F162A Synchronous Presettable BCD Decade Counter Datasheet

The 74F160A and 74F162A are high-speed synchronous decade counters operating in the BCD (8421) sequence. They are synchronously presettable for applications in programmable dividers. There are two types of Count Enable inputs plus a Terminal Count output for versatility in forming synchronous multistage counters. The F160A has an asynchronous Master Reset input that overrides all other inputs and forces the outputs LOW. The F162A has a Synchronous Reset input that overrides counting and parallel loading and allows all outputs to be simultaneously reset on the rising edge of the clock. The F160A and F162A are high speed versions of the F160 and F162.


Fairchild Semiconductor 74F160A/74F162A Synchronous Presettable BCD Decade Counter Datasheet - cover page
Brand
Fairchild
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
7
File format
PDF
File size
74 KB
Published
07 August, 2012
Updated
29 September, 2023
Model
74F162A
MD5 checksum
7E57B3F419D156E9A8DC17E3AC458A00

About this manual

The 74F160A and 74F162A are high-speed synchronous decade counters operating in the BCD (8421) sequence. They are designed for use in programmable dividers and feature synchronous counting and loading capabilities. The 74F160A includes an asynchronous Master Reset input, while the 74F162A features a synchronous Reset input that overrides counting and parallel loading.

What's inside

  • General Description
  • Features
  • Ordering Code
  • Connection Diagrams
  • Logic Symbols
  • Functional Description
  • Mode Select Table
  • State Diagram
  • Absolute Maximum Ratings
  • DC Electrical Characteristics

Specifications

Maximum Count Frequency120 MHz
Supply Voltage+4.5V to +5.5V
Operating Temperature Range-55°C to +125°C

Frequently asked questions

What is the typical count rate of the 74F160A and 74F162A?

The typical count rate is 120 MHz.

What is the maximum count frequency for these counters at +25°C with a +5V supply?

The typical maximum count frequency is 120 MHz, while the minimum is 90 MHz.

What are the recommended operating ambient temperature limits for these devices?

The device should operate within an ambient temperature range of −55°C to +125°C.

What is the maximum current applied to the output in a LOW state?

The maximum output low current is twice the rated IOL value.

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