MC74AC161: Synchronous Presettable Binary Counter

Description: The MC74AC161/74ACT161 and MC74AC163/74ACT163 are ...
  • The MC74AC161/74ACT161 and MC74AC163/74ACT163 are high-speed synchronous modulo-16 binary counters. They are synchronously presettable for application in programmable dividers and have two types of Count Enable inputs plus a Terminal Count output for versatility in forming synchronous multistage counters. The MC74AC161/74ACT161 has an asynchronous Master Reset input that overrides all other inputs and forces the outputs LOW. The MC74AC163/ 74ACT163 has a Synchronous Reset input that overrides counting and parallel loading and allows the outputs to be simultaneously reset on the rising edge of the clock.
  • Features
  • Synchronous Counting and Loading
  • High-Speed Synchronous Expansion
  • Typical Count Rate of 125 MHz
  • Outputs Source/Sink 24 mA
  • ACT161 and ACT163 Have TTL Compatible Inputs
  • These devices are available in Pb-free package(s). Specifications herein apply to both standard and Pb-free devices. Please see our website at www.onsemi.com for specific Pb-free orderable part numbers, or contact your local ON Semiconductor sales office or representative.
  • Technical Documentation & Design Resources
    Product Change Notification
    Availability and Samples
    MC74AC161DG
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Synchronous Presettable Binary Counter
  • Package Type: SOIC-16
  • Package Case Outline: 751B-05
  • MSL: 1
  • Container Type: TUBE
  • Container Qty: 48
  • Inventory

  • Market Leadtime (weeks):2 to 4
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  • ON Semiconductor:16,944
  • MC74AC161DR2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Synchronous Presettable Binary Counter
  • Package Type: SOIC-16
  • Package Case Outline: 751B-05
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

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  • Specifications
  • Type: Counter 
  • VCC Min (V):
  • VCC Max (V):
  • tpd Max (ns): 9.5 
  • PD Max (W): 0.35 
  • IO Max (mA): 24 
  • Package Type: SOIC-16 
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