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CD74HC191M The Texas Instruments CD74HC191M is a high-speed CMOS 4-bit synchronous presettable binary up/down counter. It operates from 2V to 6V and is available in a 16-SOIC package.
Mfr Part #:

CD74HC191M

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments CD74HC191M is a high-speed CMOS 4-bit synchronous presettable binary up/down counter. It operates from 2V to 6V and is available in a 16-SOIC package.
✓ Total Stock: 36 pcs
$ Price Range: $0.63

CD74HC191M Available from 1 distributor

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CD74HC191M Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Count Rate
Direction
Lead Style
Logic Type
Mounting Type
Number of Bits per Element
Number of Elements
Operating Temperature
Supplier Device Package
Supplier Package
Timing
Trigger Type
Voltage
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CD74HC191M Description

Short technical summary and product information.

The CD74HC191M from Texas Instruments is a versatile 4-bit synchronous presettable binary up/down counter. This logic IC is designed for high-speed counting applications, featuring a maximum count rate of 35 MHz. It operates over a wide voltage range of 2V to 6V, making it suitable for various system designs.

 

The counter supports both synchronous counting and asynchronous loading, allowing for precise control. It features an up/down counting capability and positive edge triggering for synchronous operations. The device is housed in a standard 16-SOIC (Surface Mount) package, facilitating integration into printed circuit boards.

 

With its robust operating temperature range of -55°C to 125°C, the CD74HC191M is well-suited for demanding environments. Its design emphasizes balanced propagation delays and transition times, along with standard outputs capable of driving up to 15 LS-TTL loads. This counter is an excellent choice for digital systems requiring reliable and efficient counting functions.

CD74HC191M Quick Information

Product Type: Counter
Series: HC191
Canonical Name: CD74HC191M 4-Bit Synchronous Presettable Binary Up/Down Counter
Subcategory: Binary Counter

CD74HC191M Compliance

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

CD74HC191M Estimated Pricing

Qty Low High
1+ $0.63 $0.63

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

CD74HC191M Features

  • 4-bit synchronous presettable binary up/down counter.
  • Wide operating voltage range from 2V to 6V.
  • Maximum count rate of 35 MHz.
  • Synchronous counting with positive edge trigger.
  • Available in a 16-SOIC surface mount package.

CD74HC191M Applications

  • Digital frequency counting circuits.
  • Programmable sequence generation.
  • Control systems requiring count tracking.
  • Data acquisition systems.
  • Digital signal processing.

CD74HC191M FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the CD74HC191M?

2 V to 6 V.

What is the operating temperature range?

-55°C to 125°C.

What package type is the CD74HC191M available in?

16-SOIC (0.154", 3.90mm width).

What is the maximum count rate of this counter?

35 MHz.

How many bits does the CD74HC191M have?

4 bits per element.

Can this counter count both up and down?

Yes, it supports both up and down counting.

Is the timing synchronous or asynchronous?

Synchronous.

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