Mfr Part #:

CD74AC161M

Mfr Name: Intersil

The Intersil CD74AC161M is a 4-bit synchronous presettable binary counter. It features internal look-ahead for fast counting and an asynchronous reset.

✓ Total Stock: 32 pcs

$ Price Range: $0.46

CD74AC161M Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
MW.FEP S.p.A. ✓ Non-Authorised Inventory information	32 pcs On Request	32 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

CD74AC161M Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Intersil
Features	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
Lead Style	Gull Wing
Number of Bits	4-Bit
Operating Temperature Range	-55 to 125

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CD74AC161M Description

Short technical summary and product information.

The CD74AC161M from Intersil is a 4-bit synchronous presettable binary counter designed for high-speed counting applications. This device features internal look-ahead logic, enabling faster counting compared to ripple counters. It also includes a carry output for cascading multiple counters to create larger bit-width counting systems.

The counter operates synchronously, meaning all flip-flops change state simultaneously on the clock edge, ensuring predictable operation. It is synchronously programmable, allowing preset values to be loaded into the counter. An asynchronous reset function is also included for immediate clearing of the counter state.

This component is housed in a 16-pin SOIC (D) package, suitable for surface mounting. The operating temperature range is -55°C to 125°C, making it suitable for a variety of environmental conditions. The CD74AC161M also boasts SCR-latchup-resistant CMOS process and circuit design, along with exceeding 2kV ESD protection per MIL-STD-883, method 3015.

CD74AC161M Quick Information

Product Type: Synchronous Presettable Binary Counter

Series: CD74AC161

Canonical Name: CD74AC161M 4-Bit Synchronous Presettable Binary Counter

Subcategory: Synchronous Presettable Binary Counters

CD74AC161M Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

CD74AC161M Estimated Pricing

Qty	Low	High
1+	$0.46	$0.46

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

CD74AC161M Features

4-bit synchronous presettable binary counter.
Internal look-ahead for fast counting.
Synchronously programmable with asynchronous reset.
SCR-latchup-resistant CMOS design.
Exceeds 2kV ESD protection.

CD74AC161M Applications

Used in digital frequency divider circuits.
Ideal for building multi-stage counter chains.
Suitable for synchronous timing and sequencing.
Employed in event counting and control systems.
Useful for digital time-delay generation.

CD74AC161M FAQs

6 frequently asked questions generated from this part’s specifications.

What is the operating temperature range of the CD74AC161M?

-55°C to 125°C.

What package is the CD74AC161M available in?

16-pin SOIC (D) package.

How many bits does the CD74AC161M counter have?

It is a 4-bit binary counter.

What type of counter is the CD74AC161M?

Synchronous presettable binary counter.

Can the CD74AC161M be cascaded for larger counters?

Yes, it has a carry output for n-bit cascading.

What ESD protection does the CD74AC161M provide?

Exceeds 2kV ESD protection per MIL-STD-883, method 3015.