CD74HC32M96 Equivalent & Substitute Parts

Part Overview

The CD74HC32M96 is a 4-channel 2-input OR gate logic IC manufactured by Texas Instruments in 14-SOIC surface mount packaging. This active product operates across a 2V to 6V supply voltage range with low quiescent current and is ROHS3 compliant. Substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required, or when sourcing from multiple manufacturers is needed for supply chain resilience.

Key Parameters

Parameter	Value
Logic Type	OR Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	2V ~ 6V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	5.2mA, 5.2mA
Input Logic Level - Low	0.5V ~ 1.8V
Input Logic Level - High	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	15ns
Operating Temperature	-55°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the CD74HC32M96 is determined by the following critical parameters:

Functional Equivalence: All substitute parts must implement a 4-channel 2-input OR gate logic function with identical circuit topology.

Electrical Compatibility: Supply voltage range (2V ~ 6V), input logic levels (Low: 0.5V ~ 1.8V, High: 1.5V ~ 4.2V), and output current specifications (5.2mA) must be maintained or exceeded.

Package Compatibility: The 14-SOIC surface mount package with 0.154" width (3.90mm) is the primary package requirement. Variants using 14-SO packaging are mechanically compatible with identical pin pitch and footprint.

Propagation Delay: Maximum propagation delay at 6V with 50pF load must not exceed 15ns for direct substitution. Parts with longer delays remain functionally equivalent but may impact timing-critical applications.

Operating Temperature Range: The -55°C to 125°C range is the baseline. Parts with narrower ranges (-40°C to 85°C or -40°C to 125°C) are suitable for applications within their specified limits.

Compliance & Status: Active product status is preferred for new designs. Obsolete parts remain electrically equivalent but may have limited availability.

Parameter Comparison

Part Number	Manufacturer	Status	Quiescent Current (Max)	Propagation Delay @ 6V, 50pF	Operating Temperature	Package	Packaging Format
CD74HC32M96	Texas Instruments	Active	2 µA	15ns	-55°C ~ 125°C	14-SOIC	Cut Tape (CT) & Digi-Reel®
CD74HC32MT	Texas Instruments	Obsolete	2 µA	15ns	-55°C ~ 125°C	14-SOIC	Tape & Reel (TR)
MC74HC32ADR2G	onsemi	Active	1 µA	13ns	-55°C ~ 125°C	14-SOIC	Cut Tape (CT) & Digi-Reel®
MM74HC32MX	Fairchild Semiconductor	Active	2 µA	17ns	-40°C ~ 85°C	14-SOIC	Not specified
74HC32D,653	Nexperia USA Inc.	Active	2 µA	15ns	-40°C ~ 125°C	14-SO	Cut Tape (CT) & Digi-Reel®
74HC32S14-13	Diodes Incorporated	Active	20 µA	15ns	-40°C ~ 125°C	14-SO	Tape & Reel (TR)
MC74HC32ADG	onsemi	Active	1 µA	13ns	-55°C ~ 125°C	14-SOIC	Tube
MM74HC32M	Fairchild Semiconductor	Active	2 µA	17ns	-40°C ~ 85°C	14-SOIC	Not specified
NLV74HC32ADG	onsemi	Obsolete	1 µA	19ns	-55°C ~ 125°C	14-SOIC	Tube
NLV74HC32ADR2G	onsemi	Obsolete	1 µA	13ns	-55°C ~ 125°C	14-SOIC	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Temperature Range):

MC74HC32ADR2G and MC74HC32ADG from onsemi are direct functional equivalents with superior electrical performance (1 µA quiescent current, 13ns propagation delay). Both maintain the -55°C to 125°C operating range and ROHS3 compliance. MC74HC32ADR2G in cut tape format matches the original packaging convenience.

74HC32D,653 from Nexperia USA Inc. maintains identical propagation delay (15ns) and quiescent current (2 µA) with ROHS3 compliance. Operating temperature range is -40°C to 125°C, suitable for most industrial applications. The 14-SO package is mechanically compatible with 14-SOIC footprints.

Secondary Substitutes (Active Status, Limited Temperature Range):

MM74HC32MX and MM74HC32M from Fairchild Semiconductor are functionally equivalent but operate only to -40°C to 85°C. These are suitable for commercial and industrial applications within this temperature window. Propagation delay is 17ns, acceptable for non-critical timing paths.

74HC32S14-13 from Diodes Incorporated operates across -40°C to 125°C with 15ns propagation delay. Quiescent current specification is 20 µA, higher than the baseline. This part is suitable when the elevated quiescent current does not impact system power budgets.

Obsolete Parts (Not Recommended for New Designs):

CD74HC32MT, NLV74HC32ADG, and NLV74HC32ADR2G are obsolete. While electrically equivalent, these parts have limited availability and should not be selected for new designs. NLV variants include automotive-grade qualification (AEC-Q100) if automotive applications require this certification.

Frequently Asked Questions (FAQ)

Q: Can I substitute MC74HC32ADR2G for CD74HC32M96 in my design?

A: Yes. MC74HC32ADR2G is a direct functional equivalent with superior performance characteristics (lower quiescent current, faster propagation delay) and maintains the full -55°C to 125°C operating range. Both parts are ROHS3 compliant and use identical 14-SOIC packaging.

Q: What is the difference between 14-SOIC and 14-SO packaging?

A: Both packages use identical pin pitch (1.27mm) and footprint dimensions (0.154" width, 3.90mm). The designations reflect minor manufacturing variations but are mechanically and electrically interchangeable on PCB layouts designed for either format.

Q: Why does 74HC32S14-13 have higher quiescent current (20 µA) than other substitutes?

A: Quiescent current variation reflects different manufacturing processes and design margins across manufacturers. The 20 µA specification remains within acceptable limits for most applications. Verify system power budget requirements before selection.

Q: Are the Fairchild MM74HC32 variants suitable for my application?

A: MM74HC32MX and MM74HC32M operate only to -40°C to 85°C, making them unsuitable for applications requiring the full -55°C to 125°C range. Confirm your application's temperature requirements before substitution.

Q: Can I use obsolete parts like CD74HC32MT as substitutes?

A: Obsolete parts remain electrically equivalent but have limited inventory and no long-term availability assurance. For new designs, select from active products. Obsolete parts may be acceptable for legacy system repairs where supply is already secured.

Q: What packaging formats are available for 74HC32 OR gate ICs?

A: Available formats include Cut Tape (CT) & Digi-Reel®, Tape & Reel (TR), and Tube. Selection depends on assembly process requirements. Cut tape and digi-reel formats are standard for automated pick-and-place assembly. Tube packaging is used for manual assembly or lower-volume applications.

Q: Does propagation delay variation between substitutes affect my circuit?

A: Propagation delay ranges from 13ns to 19ns across available substitutes. For timing-critical applications, verify that the selected part's delay meets your setup and hold time requirements. For general logic applications, all variants are functionally equivalent.

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