74HC02DB,112 NOR Gate IC Equivalent & Substitute Parts

Part Overview

The 74HC02DB,112 is a 4-channel 2-input NOR gate logic IC manufactured by Nexperia USA Inc. in 14-SSOP surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

The 74HC02 series represents a standard logic function across multiple manufacturers and package variants. Substitution is based on matching the core logic function (4-channel NOR gate), electrical performance parameters, and compatible packaging options.

Substiute Parts

74HC02DB,112

Nexperia USA Inc.In Stock: 87374HC02DB,112 Datasheet

Current PartRFQ

74HC02PW,118

Nexperia USA Inc.In Stock: 191374HC02PW,118 Datasheet

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MM74HC02MTCX

onsemiIn Stock: 3286MM74HC02MTCX Datasheet

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SN74HC02DBR

Texas InstrumentsIn Stock: 2079SN74HC02DBR Datasheet

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SN74HC02PW

Texas InstrumentsIn Stock: 14439SN74HC02PW Datasheet

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SN74HC02PWR

Texas InstrumentsIn Stock: 22358SN74HC02PWR Datasheet

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SN74HC02PWT

Texas InstrumentsIn Stock: 3475SN74HC02PWT Datasheet

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SN74HC02QPWRG4Q1

Texas InstrumentsIn Stock: 2879SN74HC02QPWRG4Q1 Datasheet

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SN74HC02QPWRQ1

Texas InstrumentsIn Stock: 2459SN74HC02QPWRQ1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74HC02DB,112 is determined by the following criteria:

Core Functional Requirements:

• Logic Type: NOR Gate (4-channel, 2-input configuration)
• Electrical Parameters: Voltage supply range 2V–6V, propagation delay 15ns @ 6V/50pF, output current 5.2mA

Package Compatibility:

• Primary package: 14-SSOP (0.209", 5.30mm width) — direct mechanical and electrical equivalent
• Secondary package: 14-TSSOP (0.173", 4.40mm width) — functionally equivalent with different footprint dimensions

Manufacturer Variants: Substitute parts are available from Nexperia USA Inc., onsemi, and Texas Instruments, all meeting the 74HC02 base product specification.

Operating Temperature Consideration: The main part specifies -40°C to 125°C. Substitutes with -40°C to 85°C operating range are functionally compatible for applications within the -40°C to 85°C window.

Automotive Grade Option: SN74HC02QPWRG4Q1 and SN74HC02QPWRQ1 include AEC-Q100 automotive qualification for applications requiring automotive-grade components.

Parameter Comparison

Engineering Selection Recommendations

For Direct Package Replacement (14-SSOP): SN74HC02DBR from Texas Instruments provides the same 14-SSOP package footprint as the obsolete 74HC02DB,112. This part is active and suitable for designs requiring no PCB layout modification.

For Active Procurement with Extended Temperature Range (-40°C to 125°C): 74HC02PW,118 from Nexperia USA Inc. maintains the full operating temperature range of the original part and is currently active. The 14-TSSOP package requires PCB layout adjustment but offers improved availability.

For Automotive Applications: SN74HC02QPWRG4Q1 and SN74HC02QPWRQ1 from Texas Instruments include AEC-Q100 automotive qualification, extended temperature range (-40°C to 125°C), and active product status. Both are suitable for automotive-grade designs.

For High-Volume Procurement: SN74HC02PWR from Texas Instruments offers the highest inventory (22,300 pcs), active status, and Cut Tape & Digi-Reel packaging for flexible procurement options.

For Standard Industrial Applications (Temperature Range -40°C to 85°C): MM74HC02MTCX from onsemi or SN74HC02PWR from Texas Instruments are suitable alternatives with active status and adequate inventory.

Frequently Asked Questions (FAQ)

Q: Can I use a 14-TSSOP package part as a direct replacement for the 14-SSOP package?

A: No. While electrically equivalent, the 14-TSSOP (0.173", 4.40mm width) and 14-SSOP (0.209", 5.30mm width) packages have different physical dimensions and footprints. PCB layout modification is required for package substitution.

Q: What is the difference between the standard and automotive-grade versions?

A: Automotive-grade parts (SN74HC02QPWRG4Q1, SN74HC02QPWRQ1) include AEC-Q100 qualification and extended temperature range (-40°C to 125°C). Standard parts typically operate to -40°C to 85°C. Use automotive-grade parts only when AEC-Q100 certification is required.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level.

Q: Which substitute part has the best availability?

A: SN74HC02PWR from Texas Instruments has the highest inventory at 22,300 pcs and is available in Cut Tape & Digi-Reel packaging.

Q: Can I substitute a part with a narrower operating temperature range?

A: Substitution is possible only if your application operates within the narrower temperature range. For example, MM74HC02MTCX (-40°C to 85°C) is suitable for applications not exceeding 85°C. For applications requiring the full -40°C to 125°C range, use 74HC02PW,118, SN74HC02QPWRG4Q1, or SN74HC02QPWRQ1.

Q: What packaging options are available?

A: Substitute parts are available in Tape & Reel (TR), Cut Tape & Digi-Reel, and Tube packaging. Select based on procurement volume and handling requirements.