74VHCT08AMX Equivalent & Substitute Parts

Part Overview

The 74VHCT08AMX is a 4-channel AND gate logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and design requirements. The 74VHCT08AMX operates within a 4.5V to 5.5V supply voltage range and is suitable for applications requiring standard TTL-compatible AND gate functionality with CMOS performance characteristics.

Substiute Parts

74VHCT08AMX

onsemiIn Stock: 3273174VHCT08AMX Datasheet

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MC74VHCT08ADR2G

onsemiIn Stock: 9818MC74VHCT08ADR2G Datasheet

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SN74AHCT08D

Texas InstrumentsIn Stock: 5400SN74AHCT08D Datasheet

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SN74AHCT08DR

Texas InstrumentsIn Stock: 2425SN74AHCT08DR Datasheet

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74AHCT08D,118

NXP SemiconductorsIn Stock: 25708074AHCT08D,118 Datasheet

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74AHCT08D-Q100J

Nexperia USA Inc.In Stock: 113874AHCT08D-Q100J Datasheet

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74VHCT08D-Q100J

Nexperia USA Inc.In Stock: 121874VHCT08D-Q100J Datasheet

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SN74AHCT08MDREP

Texas InstrumentsIn Stock: 1190SN74AHCT08MDREP Datasheet

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SN74AHCT08QDRG4Q1

Texas InstrumentsIn Stock: 3371SN74AHCT08QDRG4Q1 Datasheet

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SN74AHCT08QDRQ1

Texas InstrumentsIn Stock: 3786SN74AHCT08QDRQ1 Datasheet

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SN74AHCT08NSR

Texas InstrumentsIn Stock: 5475SN74AHCT08NSR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74VHCT08AMX is determined by strict equivalence across the following critical parameters: logic type (AND gate), number of circuits (4), number of inputs (2), supply voltage range (4.5V ~ 5.5V), output current capability (8mA high and low), input logic levels (0.8V low, 2V high), propagation delay (7.9ns @ 5V, 50pF), and package type (14-SOIC surface mount).

Substitute parts are grouped into three categories:

Direct Substitutes (Same Series, Same Status): Parts maintaining the 74VHCT series designation with identical electrical specifications and active product status. MC74VHCT08ADR2G qualifies as a direct substitute with upgraded operating temperature range (-40°C ~ 125°C) and active product status.

Cross-Series Substitutes (74AHCT Series): Parts from the Texas Instruments and Nexperia 74AHCT series that maintain all critical electrical parameters while offering active product status. These include SN74AHCT08DR, SN74AHCT08MDREP, SN74AHCT08QDRG4Q1, and SN74AHCT08QDRQ1.

Automotive-Grade Alternatives: Parts qualified to AEC-Q100 automotive standards, including 74AHCT08D-Q100J and 74VHCT08D-Q100J, suitable for applications requiring automotive-grade components.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: MC74VHCT08ADR2G maintains the 74VHCT series lineage with active product status and extended operating temperature range. This part is the direct successor to the obsolete 74VHCT08AMX.

Secondary Recommendation: SN74AHCT08DR (Texas Instruments) or SN74AHCT08QDRQ1 provide active product status with identical electrical specifications. Both are available in standard packaging configurations.

Automotive Applications: 74AHCT08D-Q100J or 74VHCT08D-Q100J are required for designs requiring AEC-Q100 automotive qualification. Both maintain full electrical equivalence with active product status.

Extended Temperature Range: SN74AHCT08MDREP extends the lower operating temperature to -55°C, suitable for applications requiring enhanced low-temperature performance.

All recommended substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental specifications.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 74VHCT08AMX with MC74VHCT08ADR2G?

A: Yes. MC74VHCT08ADR2G is electrically equivalent across all critical parameters: logic type, circuit count, input count, supply voltage, output current, input logic levels, and propagation delay. The primary difference is packaging format (Tape & Reel vs. Cut Tape) and extended operating temperature range (-40°C ~ 125°C vs. -40°C ~ 85°C).

Q: What is the difference between 74VHCT and 74AHCT series parts?

A: Both series maintain identical electrical specifications for AND gate functionality, supply voltage, output current, and propagation delay. The 74AHCT series is manufactured by Texas Instruments and Nexperia, while 74VHCT is manufactured by onsemi. Cross-series substitution is valid based on electrical equivalence.

Q: Are automotive-grade parts (AEC-Q100) compatible with standard applications?

A: Yes. Automotive-grade parts such as 74AHCT08D-Q100J and 74VHCT08D-Q100J meet all standard electrical specifications and can be used in non-automotive applications. They provide additional qualification and reliability assurance.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (Cut Tape, Tape & Reel, Tube, Bulk) affects supply and handling logistics only. All parts in 14-SOIC package maintain identical electrical performance and pin compatibility.

Q: Which substitute offers the widest operating temperature range?

A: SN74AHCT08MDREP operates from -55°C to 125°C, providing the widest temperature range among available substitutes. This part is suitable for applications requiring enhanced low-temperature performance.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original 74VHCT08AMX environmental specifications.