SN74LS191N The Texas Instruments SN74LS191N is a synchronous binary counter in a 16-DIP package. It operates with a voltage range of 4.75V to 5.25V and has an operating temperature range of 0°C to 70°C.
Mfr Part #:

SN74LS191N

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments SN74LS191N is a synchronous binary counter in a 16-DIP package. It operates with a voltage range of 4.75V to 5.25V and has an operating temperature range of 0°C to 70°C.
Total Stock: 176 pcs
$ Price Range: $0.50

SN74LS191N Available from 2 distributors

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125 pcs
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51 pcs
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SN74LS191N Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Count Rate
Direction
Industrial Grade
Lead Spacing
Logic Type
Medical Grade
Military Grade
Mounting Type
Number of Bits per Element
Number of Elements
Operating Temperature
SVHC Present
Supplier Device Package
Timing
Trigger Type
Voltage

SN74LS191N Description

Short technical summary and product information.

The Texas Instruments SN74LS191N is a synchronous binary counter designed for digital logic applications. It features a 4-bit count per element and supports both up and down counting directions with a positive edge trigger.

 

This component is suitable for through-hole mounting and comes in a 16-DIP package. It operates within a voltage range of 4.75V to 5.25V and has an operating temperature range of 0°C to 70°C. The counter has a maximum count rate of 25 MHz.

 

Key specifications include its synchronous timing, binary logic type, and a single element configuration. The SN74LS191N is a reliable choice for applications requiring precise counting functions within its specified operating parameters.

SN74LS191N Quick Information

Product Type: Synchronous Binary Counter
Series: 74LS
Canonical Name: SN74LS191N Synchronous Binary Counter
Subcategory: Synchronous Binary Counter

SN74LS191N Compliance

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

SN74LS191N Estimated Pricing

Qty Low High
1+ $0.50 $0.50

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

SN74LS191N Features

  • Synchronous binary counter operation.
  • Supports up and down counting.
  • Positive edge triggered.
  • Through hole mounting.
  • 16-DIP package.

SN74LS191N Applications

  • Synchronous counting in digital logic systems.
  • Frequency division in clock generation circuits.
  • Up/down event counting in control systems.
  • Cascaded multi-bit counter implementations.
  • Timing reference in microcontroller-based designs.

SN74LS191N FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the SN74LS191N?

The operating voltage range is 4.75V to 5.25V.

What is the operating temperature range?

-40°C to 85°C.

What package does the SN74LS191N come in?

It comes in a 16-DIP (0.300", 7.62mm) through-hole package.

What is the maximum count rate?

25 MHz.

Is the counter synchronous or asynchronous?

Synchronous.

What triggering type does it use?

Positive edge triggering.

How many bits does the counter have?

4 bits per element with one element.

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