CD74HC4002NSR Equivalent & Substitute Parts

Part Overview

The CD74HC4002NSR is a NOR Gate IC featuring 2 channels with 4 inputs per channel in a 14-SO surface mount package, manufactured by Texas Instruments. This logic component operates across a 2V to 6V supply voltage range with a maximum propagation delay of 17ns at 6V with 50pF load. The part is currently listed as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

CD74HC4002NSR

Texas InstrumentsIn Stock: 2049CD74HC4002NSR Datasheet

Current PartRFQ

CD74HC4002M

Harris CorporationIn Stock: 1609CD74HC4002M Datasheet

MFR RecommendedRFQ

74HC4002D,652

Nexperia USA Inc.In Stock: 93674HC4002D,652 Datasheet

MFR RecommendedRFQ

74HC4002D,653

NXP SemiconductorsIn Stock: 827174HC4002D,653 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD74HC4002NSR is determined by strict alignment with the following core parameters:

• Logic Type: NOR Gate (2 channels, 4 inputs)
• Voltage Supply Range: 2V ~ 6V
• Current Specifications: Quiescent 2 µA max; Output 5.2mA high/low
• Input Logic Levels: Low 0.5V ~ 1.8V; High 1.5V ~ 4.2V
• Propagation Delay: 17ns @ 6V, 50pF
• Mounting Type: Surface Mount
• Base Product Number: 74HC4002 series

All substitute parts listed maintain these electrical and functional parameters. Variations in package dimensions, manufacturer, and compliance certifications are noted but do not affect functional interchangeability within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

CD74HC4002M (Harris Corporation): This substitute maintains all core electrical parameters and operates within the same temperature range (-55°C ~ 125°C). However, it is RoHS non-compliant, which may restrict use in applications requiring environmental compliance certification. Package dimensions differ slightly (0.154" vs 0.209" width), requiring PCB layout verification.

74HC4002D,652 (Nexperia USA Inc.): This part is ROHS3 compliant and maintains MSL 1 rating. Operating temperature range is narrower (-40°C ~ 125°C vs -55°C ~ 125°C), which may limit use in extended low-temperature applications. Package dimensions match the Harris variant (0.154" width). This part is functionally equivalent within the specified operating envelope.

74HC4002D,653 (NXP Semiconductors): This is the only active product in the substitute list, offering long-term availability. However, critical electrical parameters including propagation delay and operating temperature range are not specified in the provided data. This part should be cross-referenced against full NXP datasheets before selection for new designs.

Frequently Asked Questions (FAQ)

Q: Can I directly replace CD74HC4002NSR with any of these substitutes?

A: All listed substitutes maintain the core electrical parameters (logic type, voltage supply, current specifications, input logic levels, and propagation delay). Direct replacement is electrically feasible. However, package dimension variations require PCB layout verification, and compliance certifications must be evaluated against your application requirements.

Q: What is the difference between the package dimensions listed?

A: The main part (CD74HC4002NSR) uses a 14-SOIC package with 0.209" width, while CD74HC4002M and 74HC4002D,652 use 14-SOIC packages with 0.154" width. Both are 14-pin SOIC packages but with different body widths. PCB footprints must be verified for compatibility before substitution.

Q: Why is 74HC4002D,653 listed as active while others are obsolete?

A: 74HC4002D,653 from NXP Semiconductors is currently in active production status, ensuring ongoing availability. The other substitutes are obsolete products. For new designs requiring long-term supply assurance, the active part is preferable, provided full electrical specifications are confirmed against NXP documentation.

Q: Does RoHS compliance affect functional interchangeability?

A: RoHS compliance does not affect electrical function or performance. It indicates environmental and hazardous substance restrictions in manufacturing. Selection depends on your application's regulatory requirements. CD74HC4002NSR and 74HC4002D,652 are ROHS3 compliant; CD74HC4002M is not.

Q: What is MSL (Moisture Sensitivity Level) and why does it matter?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity restrictions and requires no special handling or storage conditions. All listed substitutes with specified MSL ratings carry MSL 1, ensuring equivalent handling requirements.

Q: Can I use 74HC4002D,653 as a direct replacement without verifying specifications?

A: No. While 74HC4002D,653 is functionally equivalent based on the base product number and logic type, critical parameters including propagation delay and operating temperature range are not provided in this reference. Full NXP datasheets must be consulted to confirm compatibility with your specific application requirements before implementation.