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CD74HCT161 - High-Speed CMOS Logic Presettable Counters

Download the CD74HCT161 datasheet PDF. This datasheet also covers the CD74HC161 variant, as both devices belong to the same high-speed cmos logic presettable counters family and are provided as variant models within a single manufacturer datasheet.

Description

Two count enables, PE and TE, in each counter are provided for n-bit cascading.

In all counters reset action occurs regardless of the level of the SPE, PE and TE inputs (and the clock input, CP, in the ’HC161 and ’HCT161 types).

Features

  • ’HC161, ’HCT161 4-Bit Binary Counter, Asynchronous Reset.
  • ’HC163, ’HCT163 4-Bit Binary Counter, Synchronous Reset.
  • Synchronous Counting and Loading.
  • Two Count Enable Inputs for n-Bit Cascading.
  • Look-Ahead Carry for High-Speed Counting.
  • Fanout (Over Temperature Range) - Standard Outputs.
  • 10 LSTTL Loads - Bus Driver Outputs.
  • . . . 15 LSTTL Loads.
  • Wide Operating Temperature Range . . . -55oC t.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (CD74HC161-etcTI.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
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CD74HC22106 QMOS 8 x 8 x 1 Crosspoint Switches with Memory Control Intersil Corporation
CD74HC373 OCTAL TRANSPARENT D-TYPE LATCHES NXP

Other Datasheets by Texas Instruments

Part Number Description
CD74HCT163 High-Speed CMOS Logic Presettable Counters
CD74HCT164 8-Bit Serial-In/Parallel-Out Shift Register
CD74HCT164E 8-Bit Serial-In/Parallel-Out Shift Register
CD74HCT165 8-Bit Parallel-In/Serial-Out Shift Register
CD74HCT166 8-Bit Parallel-In/Serial-Out Shift Register

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
The CD54HCT161 is obsolete and no longer is supplied. Data sheet acquired from Harris Semiconductor SCHS154D February 1998 - Revised October 2003 CD54/74HC161, CD54/74HCT161, CD54/74HC163, CD54/74HCT163 High-Speed CMOS Logic Presettable Counters [ /Title (CD74 HC161 , CD74 HCT16 1, CD74 HC163 , CD74 HCT16 3) /Subject (High Speed CMOS Logic Presettable Counte rs) /Autho r () /Keywords (High Speed CMOS Logic Presettable Counte rs, High Speed Features • ’HC161, ’HCT161 4-Bit Binary Counter, Asynchronous Reset • ’HC163, ’HCT163 4-Bit Binary Counter, Synchronous Reset • Synchronous Counting and Loading • Two Count Enable Inputs for n-Bit Cascading • Look-Ahead Carry for High-Speed Counting • Fanout (Over Temperature Range) - Standard Outputs . . . . . . . . . . . . . . .
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