SN74LS38NG4 Equivalent & Substitute Parts

Part Overview

The SN74LS38NG4 is a NAND Gate IC featuring 4 channels with 2 inputs per channel and open collector output configuration in a 14-PDIP package. This component is classified as discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design requirements and procurement needs. The part operates within the 74LS logic family standard and maintains compatibility with TTL-level systems requiring open collector NAND gate functionality.

Substiute Parts

SN74LS38NG4

Texas InstrumentsIn Stock: 908SN74LS38NG4 Datasheet

Current PartRFQ

SN74LS38N

Texas InstrumentsIn Stock: 2413SN74LS38N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS38NG4 is determined by strict equivalence across the following critical parameters:

• Logic Type: NAND Gate configuration
• Circuit Count: 4 channels
• Input Count: 2 inputs per channel
• Output Configuration: Open Collector
• Supply Voltage Range: 4.75V ~ 5.25V
• Output Current Capability: 24mA low
• Propagation Delay: 32ns @ 5V, 45pF
• Package Type: 14-DIP through-hole
• Series Classification: 74LS

The SN74LS38N qualifies as a direct substitute based on identical electrical specifications and functional characteristics across all parameters listed above. The primary distinction between the main part and substitute relates to product status and packaging format, not electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS38N is the designated manufacturer-recommended substitute for the SN74LS38NG4. Both parts maintain identical electrical and mechanical specifications, ensuring direct functional compatibility in circuit applications. The SN74LS38N carries active product status with confirmed inventory availability, addressing the discontinuation status of the original part number. Both components satisfy ROHS3 compliance requirements and REACH unaffected classification, maintaining regulatory alignment for industrial and commercial applications. Selection of the SN74LS38N eliminates supply chain constraints while preserving all performance characteristics required for TTL-level NAND gate logic operations.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS38N be used as a direct replacement for the SN74LS38NG4 in existing designs?

A: Yes. The SN74LS38N provides complete electrical and mechanical equivalence. All logic levels, timing parameters, output current ratings, and package dimensions are identical. No circuit modifications are required.

Q: What is the difference between SN74LS38NG4 and SN74LS38N?

A: The primary difference is product status and packaging format. The SN74LS38NG4 is discontinued, while the SN74LS38N maintains active status. Both parts are manufactured by Texas Instruments and share identical functional specifications.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant and REACH unaffected. Regulatory and environmental compliance status is equivalent.

Q: Does the 14-DIP package dimension remain the same?

A: Yes. Both parts use the 14-DIP (0.300", 7.62mm) package with identical pin configuration and through-hole mounting specifications.

Q: What is the supply voltage requirement for these parts?

A: Both parts operate within the 4.75V to 5.25V supply voltage range, standard for 74LS logic family components.

Q: Can these parts be used in new designs?

A: The SN74LS38N is recommended for new designs due to its active product status and confirmed availability. The SN74LS38NG4 should not be specified for new projects given its discontinued classification.