74ACT00SC NAND Gate IC Equivalent & Substitute Parts

Part Overview

The 74ACT00SC is a 4-channel 2-input NAND gate logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The 74ACT00 series provides standard logic gating functionality with TTL-compatible input/output levels and is widely used in digital logic applications requiring NAND gate operations.

Substiute Parts

74ACT00SC

onsemiIn Stock: 318274ACT00SC Datasheet

Current PartRFQ

MC74ACT00DR2G

onsemiIn Stock: 8922MC74ACT00DR2G Datasheet

DirectRFQ

MC74ACT00DG

onsemiIn Stock: 1997MC74ACT00DG Datasheet

SimilarRFQ

CD74ACT00M

Harris CorporationIn Stock: 2417CD74ACT00M Datasheet

DirectRFQ

CD74ACT08M

Harris CorporationIn Stock: 1806CD74ACT08M Datasheet

DirectRFQ

SN74ACT00DR

Texas InstrumentsIn Stock: 59116SN74ACT00DR Datasheet

DirectRFQ

SN74ACT00TDRQ1

Texas InstrumentsIn Stock: 3494SN74ACT00TDRQ1 Datasheet

UpgradeRFQ

CD74ACT00M96

Harris CorporationIn Stock: 2942CD74ACT00M96 Datasheet

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SN74ACT00NSR

Texas InstrumentsIn Stock: 2985SN74ACT00NSR Datasheet

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SN74ACT00D

Texas InstrumentsIn Stock: 2164SN74ACT00D Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74ACT00SC is determined by the following critical parameters:

• Logic Function: NAND gate with 4 channels and 2 inputs per channel
• Electrical Specifications: Supply voltage 4.5V ~ 5.5V, output current 24mA/24mA, input logic levels 0.8V (low) and 2V (high)
• Timing Performance: Maximum propagation delay of 9ns at 5V with 50pF load
• Package Compatibility: 14-SOIC surface mount package (0.154", 3.90mm width)
• Environmental Compliance: RoHS3 compliance and operating temperature range

Substitute parts are grouped into three categories based on their relationship to the main part:

Direct Manufacturer Equivalents maintain identical electrical and timing specifications with active product status and improved temperature ranges.

Similar Parts provide equivalent functionality with minor variations in packaging format or product status while maintaining core electrical parameters.

Parametric Equivalents deliver the same logic function and electrical performance but may have different product availability status.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: MC74ACT00DR2G or MC74ACT00DG (onsemi)

These parts provide direct functional equivalence with active product status, extended operating temperature range (-55°C ~ 125°C), and ROHS3 compliance. MC74ACT00DR2G is supplied in Tape & Reel packaging, while MC74ACT00DG is supplied in Tube packaging. Both maintain identical electrical specifications and 9ns propagation delay performance.

Secondary Recommendation: SN74ACT00DR (Texas Instruments)

This part delivers identical electrical performance and timing specifications with active product status and ROHS3 compliance. Operating temperature range matches the original part (-40°C ~ 85°C). Available in Cut Tape and Digi-Reel packaging.

Automotive Grade Option: SN74ACT00TDRQ1 (Texas Instruments)

For applications requiring automotive qualification, this part provides AEC-Q100 certification with extended operating temperature range (-40°C ~ 105°C). Electrical specifications and timing performance are identical to the original part.

Not Recommended: CD74ACT00M, CD74ACT00M96

These Harris Corporation parts are obsolete with RoHS non-compliance status. While electrically compatible, they present procurement and compliance risks.

Not Recommended: SN74ACT00NSR

This part uses 14-SO packaging (0.209", 5.30mm width) instead of the standard 14-SOIC (0.154", 3.90mm width), creating potential PCB layout incompatibility.

Frequently Asked Questions (FAQ)

Q: Can I use MC74ACT00DR2G as a direct replacement for 74ACT00SC?

A: Yes. MC74ACT00DR2G provides identical NAND gate logic function, electrical specifications (4.5V ~ 5.5V supply, 24mA output current, 9ns propagation delay), and 14-SOIC package. The part is active with ROHS3 compliance and extended temperature range (-55°C ~ 125°C).

Q: What is the difference between MC74ACT00DR2G and MC74ACT00DG?

A: Both parts are electrically and functionally identical. The difference is packaging format: MC74ACT00DR2G is supplied in Tape & Reel (TR), while MC74ACT00DG is supplied in Tube. Select based on your procurement and assembly requirements.

Q: Why is SN74ACT00NSR not recommended as a substitute?

A: While SN74ACT00NSR provides identical electrical and timing performance, it uses 14-SO packaging with 5.30mm width instead of the standard 14-SOIC with 3.90mm width. This creates potential PCB footprint incompatibility and requires design verification.

Q: Is SN74ACT00TDRQ1 suitable for non-automotive applications?

A: Yes. SN74ACT00TDRQ1 is a qualified automotive part (AEC-Q100) but functions identically to standard 74ACT00 parts in non-automotive applications. It provides extended temperature range (-40°C ~ 105°C) and ROHS3 compliance.

Q: What is the impact of quiescent current differences between parts?

A: The original 74ACT00SC specifies 2 µA maximum quiescent current, while MC74ACT00DR2G and MC74ACT00DG specify 4 µA. This 2 µA difference is negligible in most applications and does not affect functional compatibility or logic performance.

Q: Can I use CD74ACT00M or CD74ACT00M96 as substitutes?

A: These parts are functionally compatible but present compliance and procurement risks. Both are obsolete with RoHS non-compliance status. Use only if no other alternatives are available and compliance requirements permit.

Q: What packaging options are available for active 74ACT00 NAND gate parts?

A: Active parts are available in multiple packaging formats: Tape & Reel (MC74ACT00DR2G, SN74ACT00TDRQ1, SN74ACT00NSR), Tube (MC74ACT00DG), and Cut Tape/Digi-Reel (SN74ACT00DR). Select based on your assembly process and volume requirements.