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CD74AC161

ACTIVE

Synchronous Presettable Binary Counters with Asynchronous Reset

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Data sheet

CD74AC161

ACTIVE
Data sheet Order now

Product details

Function Counter Bits (#) 4 Technology family AC Supply voltage (min) (V) 1.5 Supply voltage (max) (V) 5.5 Input type Standard CMOS Output type Push-Pull Features Balanced outputs, Positive input clamp diode, Very high speed (tpd 5-10ns) Operating temperature range (°C) -55 to 125 Rating Catalog
Function Counter Bits (#) 4 Technology family AC Supply voltage (min) (V) 1.5 Supply voltage (max) (V) 5.5 Input type Standard CMOS Output type Push-Pull Features Balanced outputs, Positive input clamp diode, Very high speed (tpd 5-10ns) Operating temperature range (°C) -55 to 125 Rating Catalog
PDIP (N) 16 181.42 mm² 19.3 x 9.4 SOIC (D) 16 59.4 mm² 9.9 x 6
  • Internal look-ahead for fast counting
  • Carry output for n-bit cascading
  • Synchronous counting
  • Synchronously programmable
  • SCR-latchup-resistant CMOS process and circuit design
  • Exceeds 2kV ESD protection per MIL-STD-883, method 3015
  • Internal look-ahead for fast counting
  • Carry output for n-bit cascading
  • Synchronous counting
  • Synchronously programmable
  • SCR-latchup-resistant CMOS process and circuit design
  • Exceeds 2kV ESD protection per MIL-STD-883, method 3015

The ’AC161 devices are 4-bit binary counters. These synchronous, presettable counters feature an internal carry look-ahead for application in high-speed counting.

The ’AC161 devices are 4-bit binary counters. These synchronous, presettable counters feature an internal carry look-ahead for application in high-speed counting.
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Technical documentation

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Type Title Date
* Data sheet CDx4AC161 4-Bit Synchronous Binary Counters datasheet (Rev. D) PDF | HTML 23 May 2024
Application note Implications of Slow or Floating CMOS Inputs (Rev. E) 26 Jul 2021
Selection guide Logic Guide (Rev. AB) 12 Jun 2017
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dec 2015
More literature HiRel Unitrode Power Management Brochure 07 Jul 2009
User guide LOGIC Pocket Data Book (Rev. B) 16 Jan 2007
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004
Application note TI IBIS File Creation, Validation, and Distribution Processes 29 Aug 2002
Application note CMOS Power Consumption and CPD Calculation (Rev. B) 01 Jun 1997
Application note Designing With Logic (Rev. C) 01 Jun 1997
Application note Input and Output Characteristics of Digital Integrated Circuits 01 Oct 1996
Application note Live Insertion 01 Oct 1996
Application note Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc 01 Apr 1996

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

14-24-LOGIC-EVM — Logic product generic evaluation module for 14-pin to 24-pin D, DB, DGV, DW, DYY, NS and PW packages

The 14-24-LOGIC-EVM evaluation module (EVM) is designed to support any logic device that is in a 14-pin to 24-pin D, DW, DB, NS, PW, DYY or DGV package,

User guide: PDF | HTML
Not available on TI.com
Package Pins CAD symbols, footprints & 3D models
PDIP (N) 16 Ultra Librarian
SOIC (D) 16 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

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