74HC4002D,652 NOR Gate IC Equivalent & Substitute Parts

Part Overview

The 74HC4002D,652 is a dual 4-input NOR gate logic IC manufactured by Nexperia USA Inc. in 14-SOIC surface mount packaging. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The 74HC4002 series provides standard logic gating functionality suitable for digital circuit applications requiring NOR gate operations across a 2V to 6V supply voltage range.

Key Parameters

Parameter	Value
Logic Type	NOR Gate
Number of Circuits	2
Number of Inputs	4
Voltage Supply Range	2V ~ 6V
Operating Temperature Range	-40°C ~ 125°C
Package Type	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Max Propagation Delay	17ns @ 6V, 50pF
Current - Quiescent (Max)	2 µA
Current - Output High/Low	5.2mA / 5.2mA

Substitute Part Grouping Explanation

Substitution for the 74HC4002D,652 is determined by strict equivalence across the following critical parameters:

Logic function: NOR gate with 2 channels and 4 inputs per channel
Electrical specifications: 2V ~ 6V supply voltage, 17ns propagation delay @ 6V/50pF, 2µA quiescent current, 5.2mA output current
Package format: 14-SOIC surface mount configuration
Pin compatibility: Identical pinout and functional behavior

The substitute parts listed below maintain full electrical and functional equivalence to the original 74HC4002D,652, differing only in manufacturer, packaging format (tube vs. bulk vs. tape & reel), and compliance certifications.

Parameter Comparison

Parameter	74HC4002D,652 (Nexperia)	CD74HC4002M (Harris)	CD74HC4002M96 (Harris)	CD74HC4002MT (Texas Instruments)
Logic Type	NOR Gate	NOR Gate	NOR Gate	NOR Gate
Number of Circuits	2	2	2	2
Number of Inputs	4	4	4	4
Voltage Supply Range	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V
Current - Quiescent (Max)	2 µA	2 µA	2 µA	2 µA
Current - Output High/Low	5.2mA / 5.2mA	5.2mA / 5.2mA	5.2mA / 5.2mA	5.2mA / 5.2mA
Input Logic Level - Low	0.5V ~ 1.8V	0.5V ~ 1.8V	0.5V ~ 1.8V	0.5V ~ 1.8V
Input Logic Level - High	1.5V ~ 4.2V	1.5V ~ 4.2V	1.5V ~ 4.2V	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	17ns	17ns	17ns	17ns
Operating Temperature Range	-40°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Package / Case	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Packaging Format	Tube	Tube	Bulk	Tape & Reel (TR)
Product Status	Obsolete	Obsolete	Obsolete	Discontinued at DiGi Electronics
RoHS Status	ROHS3 Compliant	RoHS non-compliant	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Not specified	Not specified	1 (Unlimited)

Engineering Selection Recommendations

All three substitute parts (CD74HC4002M, CD74HC4002M96, CD74HC4002MT) provide complete electrical and functional equivalence to the 74HC4002D,652. Selection among these options is determined by compliance requirements and packaging format needs:

CD74HC4002MT (Texas Instruments) is the preferred substitute for applications requiring RoHS3 compliance and MSL Level 1 moisture sensitivity rating. This part is supplied in Tape & Reel format, suitable for automated assembly processes.

CD74HC4002M (Harris Corporation) in Tube packaging offers an alternative for non-RoHS applications where tube packaging is acceptable. This part does not meet RoHS3 compliance.

CD74HC4002M96 (Harris Corporation) in Bulk packaging is suitable for non-RoHS applications requiring bulk quantity handling. This part does not meet RoHS3 compliance.

The substitute parts feature extended operating temperature range (-55°C ~ 125°C) compared to the original part (-40°C ~ 125°C), providing additional thermal margin for demanding applications.

Frequently Asked Questions (FAQ)

Q: Are the substitute parts pin-compatible with the 74HC4002D,652?

A: Yes. All substitute parts maintain identical 14-SOIC pinout and functional behavior. Direct replacement is possible without circuit modification.

Q: What is the difference between CD74HC4002M, CD74HC4002M96, and CD74HC4002MT?

A: These parts are electrically identical NOR gate ICs differing only in manufacturer (Harris vs. Texas Instruments), packaging format (Tube, Bulk, or Tape & Reel), and compliance certifications. CD74HC4002MT includes RoHS3 compliance and MSL Level 1 rating, while the Harris variants do not.

Q: Can I use CD74HC4002M or CD74HC4002M96 in applications requiring RoHS3 compliance?

A: No. Both Harris Corporation variants are RoHS non-compliant. For RoHS3-compliant designs, use CD74HC4002MT from Texas Instruments.

Q: What is the operating temperature difference between the original part and substitutes?

A: The 74HC4002D,652 operates from -40°C to 125°C. All substitute parts extend the lower temperature limit to -55°C, providing wider thermal operating range while maintaining the same upper limit of 125°C.

Q: Which packaging format should I select for high-volume production?

A: CD74HC4002MT in Tape & Reel format is optimized for automated pick-and-place assembly. CD74HC4002M96 in Bulk format is suitable for manual assembly or reel-feeding operations. CD74HC4002M in Tube packaging is appropriate for lower-volume or manual assembly scenarios.

Q: Are all electrical parameters identical across the substitute parts?

A: Yes. All substitute parts maintain identical voltage supply range (2V ~ 6V), quiescent current (2µA), output current (5.2mA), input logic levels, and propagation delay (17ns @ 6V, 50pF).

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