SN74LS00NS NAND Gate IC Equivalent & Substitute Parts

Part Overview

The SN74LS00NS is a 4-channel 2-input NAND gate logic IC manufactured by Texas Instruments in a 14-SO surface mount package. This component is classified as discontinued at DiGi Electronics, making identification of active equivalent parts essential for ongoing design support and procurement. The SN74LS00NS operates within the 74LS logic family and maintains standard TTL voltage and timing specifications suitable for digital logic applications requiring NAND gate functionality.

Substiute Parts

SN74LS00NS

Texas InstrumentsIn Stock: 1967SN74LS00NS Datasheet

Current PartRFQ

SN74LS00NSR

Texas InstrumentsIn Stock: 2000361SN74LS00NSR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS00NS is determined by strict equivalence across the following critical parameters:

• Logic Type: NAND Gate (4 channels, 2 inputs per channel)
• Voltage Supply Range: 4.75V ~ 5.25V
• Output Current Specifications: 400µA (high), 8mA (low)
• Input Logic Levels: 0.8V (low), 2V (high)
• Propagation Delay: 15ns @ 5V, 15pF load
• Operating Temperature Range: 0°C ~ 70°C
• Package: 14-SOIC surface mount
• Series: 74LS
• Compliance: ROHS3, MSL Level 1

The SN74LS00NSR qualifies as a direct substitute based on identical electrical specifications, package configuration, and compliance certifications. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS00NSR is the direct equivalent for the discontinued SN74LS00NS. Both parts maintain identical electrical characteristics, timing specifications, and package dimensions. The SN74LS00NSR carries active product status with significantly higher inventory availability, ensuring procurement continuity.

Both parts satisfy ROHS3 compliance and MSL Level 1 requirements, making them suitable for applications without moisture sensitivity constraints. The packaging difference (Tube versus Cut Tape/Digi-Reel) does not affect electrical performance or pin compatibility and reflects only distribution format variation.

Selection of the SN74LS00NSR is supported by its active status, equivalent electrical specifications, and compliance certifications matching the original part.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS00NSR directly replace the SN74LS00NS in existing designs?

A: Yes. Both parts are electrically identical with matching pin configurations, voltage specifications, timing characteristics, and package dimensions (14-SOIC). No circuit modifications are required.

Q: What is the difference between Tube and Cut Tape packaging?

A: Tube packaging supplies components in plastic tubes for manual handling, while Cut Tape and Digi-Reel packaging provides components on continuous tape for automated assembly equipment. Electrical performance is identical; packaging selection depends on assembly process requirements.

Q: Are both parts RoHS compliant?

A: Yes. Both the SN74LS00NS and SN74LS00NSR are ROHS3 compliant with MSL Level 1 rating, indicating no moisture sensitivity limitations during storage and handling.

Q: Why is the SN74LS00NS marked as discontinued?

A: The SN74LS00NS is discontinued at DiGi Electronics. The SN74LS00NSR remains in active production with full availability, providing a direct path for continued component sourcing.

Q: Do the propagation delay and output current specifications match between parts?

A: Yes. Both parts specify 15ns maximum propagation delay at 5V with 15pF load, and identical output current ratings of 400µA (high) and 8mA (low).