74VHCT00ASJ NAND Gate IC Equivalent & Substitute Parts

Part Overview

The 74VHCT00ASJ is a 4-channel 2-input NAND gate logic IC manufactured by onsemi in 14-SOP surface mount packaging. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The 74VHCT00ASJ operates within the 4.5V to 5.5V supply voltage range and is suitable for general-purpose logic applications requiring NAND gate functionality.

Substiute Parts

74VHCT00ASJ

onsemiIn Stock: 111674VHCT00ASJ Datasheet

Current PartRFQ

SN74AHCT00NSR

Texas InstrumentsIn Stock: 2905SN74AHCT00NSR Datasheet

DirectRFQ

74AHCT00D,118

Nexperia USA Inc.In Stock: 360874AHCT00D,118 Datasheet

SimilarRFQ

SN74AHCT00D

Texas InstrumentsIn Stock: 8219SN74AHCT00D Datasheet

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SN74AHCT00DR

Texas InstrumentsIn Stock: 3104SN74AHCT00DR Datasheet

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SN74AHCT00MDREP

Texas InstrumentsIn Stock: 1172SN74AHCT00MDREP Datasheet

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SN74AHCT00QDRQ1

Texas InstrumentsIn Stock: 3160SN74AHCT00QDRQ1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74VHCT00ASJ is determined by strict equivalence across the following critical parameters:

• Logic Type: NAND Gate (4 channels, 2 inputs per channel)
• Voltage Supply Range: 4.5V ~ 5.5V
• Electrical Characteristics: Quiescent current, output drive current, input logic levels, and propagation delay
• Mounting Type: Surface Mount
• Package Type: 14-SOIC footprint compatibility
• Moisture Sensitivity Level: MSL 1 (Unlimited)

Substitute parts must maintain identical logic functionality, electrical performance within specified tolerances, and physical compatibility with the original 14-SOIC package footprint. The 74AHCT00 series from multiple manufacturers meets these criteria as direct functional equivalents.

Parameter Comparison

Engineering Selection Recommendations

For replacement of the obsolete 74VHCT00ASJ, the following active-status parts are recommended based on product availability and compliance status:

Primary Recommendation: SN74AHCT00NSR (Texas Instruments) This part maintains identical electrical specifications and operating temperature range (-40°C ~ 85°C) as the original 74VHCT00ASJ. It is actively manufactured, ROHS3 compliant, and available in Tape & Reel packaging with 2815 units in stock.

Secondary Recommendation: SN74AHCT00DR (Texas Instruments) An active product with identical electrical performance and operating temperature range. Available in Cut Tape & Digi-Reel packaging with 3078 units in stock. ROHS3 compliant.

Extended Temperature Option: SN74AHCT00MDREP (Texas Instruments) For applications requiring extended operating temperature range (-55°C ~ 125°C), this active part provides superior thermal performance while maintaining all other electrical specifications. ROHS3 compliant with 1155 units in stock.

Automotive-Grade Option: SN74AHCT00QDRQ1 (Texas Instruments) For automotive applications requiring AEC-Q100 qualification, this active part meets automotive standards with extended temperature range (-40°C ~ 125°C). ROHS3 compliant with 3150 units in stock.

Alternative Manufacturer: 74AHCT00D,118 (Nexperia USA Inc.) An active product from an alternative manufacturer with extended operating temperature range (-40°C ~ 125°C). ROHS3 compliant with 3590 units in stock.

Frequently Asked Questions (FAQ)

Q: Can the 74VHCT00ASJ be directly replaced with SN74AHCT00NSR? A: Yes. Both parts share identical logic type (4-channel 2-input NAND gate), electrical specifications, and operating temperature range. The 14-SOIC package footprint is compatible. The primary difference is product status: the original is obsolete while the substitute is actively manufactured.

Q: What is the difference between the various Texas Instruments 74AHCT00 variants? A: The variants differ in packaging format (Tape & Reel, Cut Tape, Tube), operating temperature range, and product status. SN74AHCT00NSR and SN74AHCT00DR are both active with standard temperature range (-40°C ~ 85°C). SN74AHCT00MDREP extends to -55°C ~ 125°C. SN74AHCT00QDRQ1 includes automotive qualification (AEC-Q100) with -40°C ~ 125°C range.

Q: Are there package footprint differences between substitute parts? A: The original 74VHCT00ASJ uses 14-SOIC with 0.209" (5.30mm) width. Most substitutes use 14-SOIC with 0.154" (3.90mm) width. Both are 14-pin SOIC packages and are mechanically compatible on standard PCB layouts, though the narrower package may provide improved board density.

Q: Do all substitute parts meet RoHS compliance? A: All listed substitute parts are ROHS3 compliant. The original 74VHCT00ASJ RoHS status is not specified in the provided data.

Q: Which substitute part should I select for a new design? A: For standard applications, SN74AHCT00DR or SN74AHCT00NSR are recommended as they are actively manufactured with confirmed availability. For automotive applications, select SN74AHCT00QDRQ1. For extended temperature requirements, select SN74AHCT00MDREP.

Q: Are the electrical characteristics identical across all substitutes? A: Yes. All substitute parts maintain identical quiescent current (2 µA), output drive current (8mA), input logic levels (0.8V low, 2V high), and propagation delay (7.9ns @ 5V, 50pF) specifications.