74F38SJX NAND Gate IC Equivalent & Substitute Parts

Part Overview

The 74F38SJX is a NAND Gate IC featuring 4 channels with 2 inputs per channel and open collector output configuration in a 14-SOP package. Manufactured by onsemi, this component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The 74F series logic family provides standard TTL-compatible switching functionality suitable for digital logic applications requiring NAND gate operations.

Substiute Parts

74F38SJX

onsemiIn Stock: 1894874F38SJX Datasheet

Current PartRFQ

SN74F38D

Texas InstrumentsIn Stock: 2529SN74F38D Datasheet

SimilarRFQ

SN74F38DR

Texas InstrumentsIn Stock: 2618SN74F38DR Datasheet

SimilarRFQ

SN74F38NSR

Texas InstrumentsIn Stock: 5085SN74F38NSR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74F38SJX are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Parameters (Must Match):

• Logic Type: NAND Gate
• Number of Circuits: 4
• Number of Inputs: 2
• Features: Open Collector
• Voltage - Supply: 4.5V ~ 5.5V
• Current - Output High, Low: -, 64mA
• Input Logic Level - Low: 0.8V
• Input Logic Level - High: 2V
• Max Propagation Delay @ V, Max CL: 12.5ns @ 5V, 50pF
• Operating Temperature: 0°C ~ 70°C

Mechanical Parameters (Must Match):

• Mounting Type: Surface Mount
• Base Product Number: 74F38
• Package Type: 14-pin SOIC variants

All substitute parts listed maintain identical electrical specifications and are pin-compatible within their respective package configurations. Differences in packaging format (tube, cut tape, tape & reel) and supplier device package designations do not affect functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SN74F38DR (Texas Instruments)

The SN74F38DR is the preferred substitute for the obsolete 74F38SJX. This part maintains active product status with Texas Instruments, ensuring long-term availability and supply chain stability. The SN74F38DR carries ROHS3 compliance certification and is supplied 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 substitute with identical electrical specifications and active product status. This variant is supplied in tape & reel packaging, optimized for high-volume automated assembly processes. ROHS3 compliance and unlimited moisture sensitivity rating align with modern manufacturing standards.

Tertiary Option: SN74F38D (Texas Instruments)

The SN74F38D remains available as a last-time-buy option from Texas Instruments. While functionally equivalent, this part carries last-time-buy status, indicating limited future availability. Selection of this variant should be reserved for applications where existing inventory or specific packaging requirements justify its use.

All three substitute parts are electrically and mechanically interchangeable with the 74F38SJX within the specified operating parameters and environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can SN74F38D, SN74F38DR, and SN74F38NSR be used interchangeably with 74F38SJX?

A: Yes. All three Texas Instruments parts are functionally equivalent to the onsemi 74F38SJX. They share identical electrical specifications including logic type, circuit count, input configuration, supply voltage range, output current ratings, propagation delay, and operating temperature range. Differences exist only in packaging format and product lifecycle status.

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

A: The 74F38SJX uses 14-SOP packaging. Substitute parts are available in 14-SOIC variants with different physical dimensions: SN74F38D and SN74F38DR use 14-SOIC (0.154", 3.90mm width), while SN74F38NSR uses 14-SOIC (0.209", 5.30mm width). All are 14-pin surface mount packages with identical pin configurations. Physical board layout and footprint design must accommodate the specific package width selected.

Q: Why is the 74F38SJX listed as obsolete?

A: The 74F38SJX has reached end-of-life status with onsemi. Substitute parts from Texas Instruments provide continued access to functionally identical NAND gate logic with 4 channels and 2 inputs per channel in open collector configuration.

Q: Are there compliance differences between the main part and substitutes?

A: The 74F38SJX carries REACH Unaffected status. All three Texas Instruments substitutes are ROHS3 compliant, meeting current regulatory requirements for new designs and production. All parts maintain unlimited moisture sensitivity level (MSL 1).

Q: Which substitute should be selected for new designs?

A: For new designs, SN74F38DR is recommended due to active product status, ROHS3 compliance, and availability in multiple packaging formats. SN74F38NSR is preferred for high-volume production requiring tape & reel packaging.

Q: Are the electrical characteristics identical across all parts?

A: Yes. All parts maintain identical supply voltage range (4.5V ~ 5.5V), output current ratings (64mA low), input logic levels (0.8V low, 2V high), propagation delay (12.5ns @ 5V, 50pF), and operating temperature range (0°C ~ 70°C).