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SN74HC161N The Texas Instruments SN74HC161N is a 4-bit synchronous binary counter. It operates from 2V to 6V and features a count rate of 36 MHz.
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SN74HC161N

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments SN74HC161N is a 4-bit synchronous binary counter. It operates from 2V to 6V and features a count rate of 36 MHz.
✓ Total Stock: 243 pcs
$ Price Range: $0.32

SN74HC161N Available from 3 distributors

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Speed Components Ltd ✓
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119 pcs
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119 pcs On Request 1 On Request On Request On Request On Request On Request
Hybrid Electronics ✓
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100 pcs
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100 pcs On Request 1 On Request On Request On Request On Request On Request
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24 pcs
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24 pcs On Request 1 On Request On Request On Request On Request On Request
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SN74HC161N Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Count Rate
Direction
Features
Function
Input Type
Logic Type
Mounting Type
Number of Bits per Element
Number of Elements
Operating Temperature
Operating Voltage
Output Type
Power Consumption
Reset
Supplier Device Package
Supplier Package
Timing
Trigger Type
Voltage
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SN74HC161N Description

Short technical summary and product information.

The SN74HC161N from Texas Instruments is a 4-bit synchronous, presettable binary counter designed for high-speed counting applications. It features an internal carry look-ahead for efficient cascading in multi-bit designs.

 

This counter operates within a wide voltage range of 2V to 6V and supports synchronous counting triggered by the positive edge of the clock signal. Key electrical characteristics include a typical propagation delay of 14 ns, a count rate of 36 MHz, and low power consumption with a maximum Icc of 80 μA. The outputs can drive up to 10 LSTTL loads, and it has a low input current of 1 μA maximum.

 

The SN74HC161N is available in a 16-PDIP through-hole package, making it suitable for breadboarding and prototyping. Its synchronous operation eliminates output counting spikes, and it offers asynchronous clear functionality. The device is designed for applications requiring precise and reliable counting.

 

Key features include its 4-bit binary counting capability, synchronous operation, and programmable preset function. The asynchronous clear input allows for immediate reset of the counter. Its HC technology family ensures compatibility with other HC logic devices.

SN74HC161N Quick Information

Product Type: Binary Counter
Series: SN74HC161
Canonical Name: SN74HC161N 4-Bit Synchronous Binary Counter
Subcategory: Binary Counter

SN74HC161N Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SN74HC161N Estimated Pricing

Qty Low High
1+ $0.32 $0.32

Estimated market price range - modelled values for guidance only, not live distributor offers.

SN74HC161N Features

  • 4-bit synchronous binary counter.
  • Wide 2V to 6V operating voltage range.
  • 36 MHz maximum count rate.
  • Low 80μA maximum power consumption.
  • 16-PDIP through-hole package.

SN74HC161N Applications

  • Digital frequency division circuits.
  • Event counting and sequencing.
  • Control systems requiring precise timing.
  • Data acquisition systems.

SN74HC161N FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the SN74HC161N?

The SN74HC161N operates from 2V to 6V.

What is the maximum count rate of the SN74HC161N?

The maximum count rate is 36 MHz.

What package does the SN74HC161N come in?

The SN74HC161N is available in a 16-pin PDIP (0.300", 7.62mm) through-hole package.

What is the operating temperature range of the SN74HC161N?

The operating temperature range is -40°C to 85°C.

Does the SN74HC161N have an asynchronous reset?

Yes, the SN74HC161N has an asynchronous reset.

What is the typical propagation delay of the SN74HC161N?

The typical propagation delay is 14 ns.

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