CD74HC157M Equivalent & Substitute Parts

Part Overview

The CD74HC157M is a 4 x 2:1 multiplexer logic integrated circuit manufactured by Texas Instruments in 16-SOIC surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The CD74HC157M operates as a data selector/multiplexer with single supply voltage operation across the 2V to 6V range, suitable for general-purpose logic applications requiring channel selection functionality.

Key Parameters

Parameter	Value
Circuit Configuration	4 x 2:1 Multiplexer
Independent Circuits	1
Output Current (High/Low)	5.2mA / 5.2mA
Supply Voltage Range	2V to 6V
Operating Temperature Range	-55°C to 125°C
Package Type	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CD74HC157M is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Circuit configuration: 4 x 2:1 multiplexer topology
Package type: 16-SOIC surface mount form factor
Supply voltage range: 2V to 6V single supply operation
Operating temperature range: Minimum -55°C to 125°C or better
Independent circuits: 1 circuit per package
Output current capability: 5.2mA minimum (or higher)

Acceptable Variations:

Manufacturer identity (Texas Instruments, NXP, onsemi, Harris, Nexperia)
Packaging format (Tube, Bulk, Tape & Reel, Cut Tape)
Product status (Active or Obsolete)
RoHS compliance status
Output current above 5.2mA (7.8mA acceptable)

All substitute parts listed maintain electrical and mechanical compatibility with the CD74HC157M within these defined parameters.

Parameter Comparison

Part Number	Manufacturer	Circuit	Output Current (mA)	Supply Voltage	Temp Range (°C)	Package	Status	RoHS
CD74HC157M	Texas Instruments	4 x 2:1	5.2 / 5.2	2V - 6V	-55 to 125	16-SOIC	Obsolete	ROHS3
CD74HC157M96	Harris Corporation	4 x 2:1	5.2 / 5.2	2V - 6V	-55 to 125	16-SOIC	Obsolete	Non-compliant
MC74HC157ADR2G	onsemi	4 x 2:1	7.8 / 7.8	2V - 6V	-55 to 125	16-SOIC	Active	ROHS3
74HC157D,652	NXP Semiconductors	4 x 2:1	5.2 / 5.2	2V - 6V	-40 to 125	16-SOIC	Active	Not specified
74HC157D,653	Nexperia USA Inc.	4 x 2:1	5.2 / 5.2	2V - 6V	-40 to 125	16-SOIC	Active	ROHS3
74HC157D-Q100,118	NXP USA Inc.	4 x 2:1	5.2 / 5.2	2V - 6V	-40 to 125	16-SOIC	Active	Not specified
MC74HC157ADG	onsemi	4 x 2:1	7.8 / 7.8	2V - 6V	-55 to 125	16-SOIC	Active	ROHS3
NLV74HC157ADR2G	onsemi	4 x 2:1	7.8 / 7.8	2V - 6V	-55 to 125	16-SOIC	Obsolete	ROHS3

Engineering Selection Recommendations

For Active Product Status Requirement: Select from 74HC157D,652, 74HC157D,653, 74HC157D-Q100,118, MC74HC157ADR2G, or MC74HC157ADG. These parts maintain current manufacturing status and ensure long-term availability for production designs.

For RoHS3 Compliance: 74HC157D,653, MC74HC157ADR2G, MC74HC157ADG, and NLV74HC157ADR2G meet ROHS3 compliance. CD74HC157M96 from Harris Corporation is non-compliant and unsuitable for RoHS-regulated applications.

For Automotive Grade Applications: 74HC157D-Q100,118 carries AEC-Q100 automotive qualification and is suitable for automotive-grade designs requiring temperature range -40°C to 125°C.

For Extended Temperature Range (-55°C): MC74HC157ADR2G, MC74HC157ADG, and NLV74HC157ADR2G support the full -55°C to 125°C range matching the original CD74HC157M specification.

For Output Current Capability: onsemi parts (MC74HC157ADR2G, MC74HC157ADG, NLV74HC157ADR2G) provide 7.8mA output current, exceeding the 5.2mA specification of the original part and NXP alternatives.

For Packaging Format Preference:

Tape & Reel: 74HC157D,653, MC74HC157ADR2G, NLV74HC157ADR2G
Bulk: 74HC157D,652, 74HC157D-Q100,118, CD74HC157M96
Tube: MC74HC157ADG

Frequently Asked Questions (FAQ)

Q: Can MC74HC157ADR2G replace CD74HC157M directly? A: Yes. MC74HC157ADR2G maintains all critical electrical parameters: 4 x 2:1 circuit configuration, 16-SOIC package, 2V to 6V supply range, and -55°C to 125°C operating temperature. Output current is 7.8mA versus 5.2mA, which is a compatible increase. The part is active status with ROHS3 compliance.

Q: What is the difference between 74HC157D,652 and 74HC157D,653? A: Both are NXP/Nexperia 4 x 2:1 multiplexers in 16-SOIC packaging with identical electrical specifications. The primary difference is packaging format: 74HC157D,652 is supplied in Bulk, while 74HC157D,653 is supplied in Tape & Reel. 74HC157D,653 carries ROHS3 compliance certification.

Q: Is 74HC157D-Q100,118 suitable for non-automotive applications? A: Yes. The AEC-Q100 automotive qualification does not restrict use in non-automotive designs. This part meets all standard 74HC157 electrical specifications and is suitable for general-purpose logic applications.

Q: Why does CD74HC157M96 show RoHS non-compliance? A: CD74HC157M96 from Harris Corporation predates modern RoHS3 compliance requirements. For applications requiring RoHS compliance, select alternative parts such as 74HC157D,653, MC74HC157ADR2G, MC74HC157ADG, or NLV74HC157ADR2G.

Q: What is the temperature range difference between CD74HC157M and NXP alternatives? A: CD74HC157M operates -55°C to 125°C. NXP parts (74HC157D,652, 74HC157D,653, 74HC157D-Q100,118) operate -40°C to 125°C. For applications requiring -55°C operation, use onsemi alternatives: MC74HC157ADR2G, MC74HC157ADG, or NLV74HC157ADR2G.

Q: Are all substitute parts pin-compatible with CD74HC157M? A: Yes. All listed substitutes maintain the 16-SOIC package form factor and 4 x 2:1 multiplexer circuit topology, ensuring pin-for-pin compatibility in standard surface mount applications.

Q: Which substitute offers the best long-term availability? A: 74HC157D,653 from Nexperia USA Inc. and MC74HC157ADR2G from onsemi are both active status parts with high inventory levels (10,178 and 2,900 units respectively) and ROHS3 compliance, supporting sustained procurement for ongoing production.

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