74F38SJ NAND Gate IC Equivalent & Substitute Parts

Part Overview

The 74F38SJ is a NAND Gate IC featuring 4 channels with 2 inputs per channel in a 14-SOP surface mount package. Manufactured by onsemi, this component is classified as obsolete, which necessitates identifying equivalent substitute parts for ongoing design requirements and production continuity. The 74F38 series provides open collector output configuration suitable for logic applications requiring this specific output topology.

Substiute Parts

74F38SJ

onsemiIn Stock: 169174F38SJ Datasheet

Current PartRFQ

SN74F38NSR

Texas InstrumentsIn Stock: 5085SN74F38NSR Datasheet

DirectRFQ

SN74F38D

Texas InstrumentsIn Stock: 2529SN74F38D Datasheet

SimilarRFQ

SN74F38DR

Texas InstrumentsIn Stock: 2618SN74F38DR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74F38SJ are qualified based on the following critical parameters that determine functional and mechanical compatibility:

• Logic Function: NAND Gate with 4 channels, 2 inputs per channel
• Output Configuration: Open Collector topology
• Electrical Specifications: Supply voltage 4.5V ~ 5.5V, output current 64mA, propagation delay 12.5ns @ 5V with 50pF load
• Input Logic Levels: Low 0.8V, High 2V
• Operating Temperature Range: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package Family: 14-pin SOIC variants

All substitute parts maintain identical logic function, electrical performance, and thermal operating range. Variations exist only in packaging format (SOP vs. SOIC width specifications) and supplier packaging method (Tape & Reel, Tube, or Cut Tape).

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SN74F38DR (Texas Instruments)

The SN74F38DR is the preferred substitute for the obsolete 74F38SJ. This part maintains active product status with Texas Instruments, ensuring long-term availability and supply chain stability. It carries ROHS3 compliance certification and is available in Cut Tape and Digi-Reel packaging formats suitable for both prototype and production environments.

Secondary Recommendation: SN74F38NSR (Texas Instruments)

The SN74F38NSR provides an alternative with active product status. This variant is supplied in Tape & Reel format, optimized for high-volume automated assembly processes. ROHS3 compliance is maintained.

Tertiary Option: SN74F38D (Texas Instruments)

The SN74F38D remains available but carries Last Time Buy status, indicating limited future availability. This part is supplied in Tube packaging and maintains ROHS3 compliance. Selection of this variant should account for potential supply constraints.

All three Texas Instruments substitutes deliver identical electrical performance and logic functionality. Selection between them depends on packaging format requirements and supply chain considerations rather than technical performance.

Frequently Asked Questions (FAQ)

Q: Can SN74F38NSR, SN74F38D, and SN74F38DR be used interchangeably with 74F38SJ?

A: Yes. All three Texas Instruments parts are functionally equivalent to the 74F38SJ. They provide identical logic function (4-channel NAND gate with 2 inputs), electrical specifications (supply voltage, output current, propagation delay), and operating temperature range. Differences exist only in packaging format and supplier packaging method.

Q: What is the difference between the package specifications listed for these parts?

A: The 74F38SJ and SN74F38NSR both use 14-SOIC packages with 0.209" (5.30mm) width. The SN74F38D and SN74F38DR use 14-SOIC packages with 0.154" (3.90mm) width. These are different physical package sizes. PCB footprints must match the selected part's package dimensions. Verify your PCB design accommodates the chosen package width before substitution.

Q: Why is the 74F38SJ marked as obsolete?

A: The 74F38SJ is an onsemi product that has reached end-of-life status. Texas Instruments continues to manufacture equivalent 74F38 variants in active production, making substitution straightforward for design continuity.

Q: Are there compliance differences between the substitute parts?

A: The Texas Instruments substitutes (SN74F38NSR, SN74F38D, SN74F38DR) all carry ROHS3 compliance certification. The original 74F38SJ does not specify RoHS status. All parts are REACH Unaffected and carry EAR99 ECCN classification.

Q: Which substitute should I select for new designs?

A: For new designs, select SN74F38DR or SN74F38NSR based on your assembly process requirements. Both maintain active product status. SN74F38DR is suitable for mixed-volume production with Cut Tape availability. SN74F38NSR is optimized for high-volume automated assembly with Tape & Reel packaging.

Q: What is the moisture sensitivity level for these parts?

A: All parts in this comparison carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints during storage or handling.