74VHCT04ASJ Equivalent & Substitute Parts

Part Overview

The 74VHCT04ASJ is a 6-channel inverter logic IC manufactured by onsemi in a 14-SOP surface mount package. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The 74VHCT04ASJ operates within a 4.5V to 5.5V supply voltage range and is designed for standard TTL-compatible logic applications requiring signal inversion across multiple channels.

Substiute Parts

74VHCT04ASJ

onsemiIn Stock: 117474VHCT04ASJ Datasheet

Current PartRFQ

SN74AHCT04NSR

Texas InstrumentsIn Stock: 6111SN74AHCT04NSR Datasheet

DirectRFQ

74AHCT04D,118

Nexperia USA Inc.In Stock: 84274AHCT04D,118 Datasheet

SimilarRFQ

SN74AHCT04D

Texas InstrumentsIn Stock: 6134SN74AHCT04D Datasheet

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SN74AHCT04DR

Texas InstrumentsIn Stock: 21324SN74AHCT04DR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74VHCT04ASJ are qualified based on the following criteria:

Functional Equivalence: All substitute parts maintain identical logic type (inverter), circuit count (6 channels), and input configuration (1 input per channel).

Electrical Compatibility: Supply voltage range (4.5V ~ 5.5V), quiescent current (2 µA max), output current (8mA high/low), input logic levels (0.8V low, 2V high), and propagation delay (7.7ns @ 5V, 50pF) are preserved across all substitutes.

Package Compatibility: All substitute parts are available in 14-SOIC surface mount packages with equivalent pinout and mechanical dimensions suitable for direct replacement.

Key Substitution Parameters:

• Logic family: 74AHCT series (advanced high-speed CMOS TTL-compatible)
• Electrical specifications: Identical to main part
• Mounting: Surface mount, 14-SOIC package
• MSL rating: 1 (Unlimited)

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SN74AHCT04DR (Texas Instruments)

The SN74AHCT04DR is the preferred substitute for the obsolete 74VHCT04ASJ. This part maintains full electrical and functional equivalence while offering active product status and ROHS3 compliance. With 21,300 units in stock and availability in Cut Tape & Digi-Reel packaging, the SN74AHCT04DR provides supply chain continuity for both prototype and production volumes. The extended operating temperature range (-40°C ~ 125°C) exceeds the original part specification.

Secondary Recommendation: SN74AHCT04NSR (Texas Instruments)

The SN74AHCT04NSR provides an alternative from Texas Instruments with identical electrical specifications and active product status. This part is available in Cut Tape & Digi-Reel packaging with 6,100 units in stock. ROHS3 compliance and unlimited MSL rating ensure compatibility with modern manufacturing processes.

Alternative: 74AHCT04D,118 (Nexperia USA Inc.)

The 74AHCT04D,118 from Nexperia USA Inc. offers functional equivalence with active product status and ROHS3 compliance. Available in Tape & Reel packaging with 744 units in stock, this part serves as a secondary alternative when primary sources are unavailable.

Note on SN74AHCT04D (Texas Instruments)

The SN74AHCT04D is discontinued at DiGi Electronics and should not be selected for new designs requiring long-term supply assurance.

Frequently Asked Questions (FAQ)

Q: Can the 74AHCT04 series directly replace the 74VHCT04ASJ?

A: Yes. The 74AHCT04 series maintains identical electrical specifications, logic function, circuit count, and package pinout. All substitute parts operate within the same 4.5V to 5.5V supply voltage range with equivalent propagation delay, output current, and input logic levels.

Q: What is the difference between the 74VHCT and 74AHCT logic families?

A: Both families are TTL-compatible inverter logic ICs with identical electrical performance for the specified parameters. The 74AHCT series represents advanced high-speed CMOS technology and is actively manufactured, while the 74VHCT series is obsolete.

Q: Are there package dimension differences between substitute parts?

A: The original 74VHCT04ASJ specifies a 14-SOIC package with 0.209" (5.30mm) width. Most substitute parts (SN74AHCT04NSR) maintain this dimension. However, some alternatives (74AHCT04D,118, SN74AHCT04D, SN74AHCT04DR) specify 14-SOIC with 0.154" (3.90mm) width. Verify PCB footprint compatibility before selection.

Q: Do all substitute parts meet RoHS compliance?

A: All active substitute parts (SN74AHCT04DR, SN74AHCT04NSR, 74AHCT04D,118) are ROHS3 compliant. The original 74VHCT04ASJ does not specify RoHS status.

Q: What is the operating temperature range difference?

A: The original 74VHCT04ASJ operates from -40°C to 85°C. All 74AHCT substitute parts extend this range to -40°C to 125°C, providing enhanced thermal performance for demanding applications.

Q: Which substitute part offers the best supply availability?

A: The SN74AHCT04DR from Texas Instruments offers the highest inventory level with 21,300 units in stock, followed by SN74AHCT04NSR with 6,100 units.