MC74ACT00D NAND Gate IC Equivalent & Substitute Parts

Part Overview

The MC74ACT00D is a 4-channel 2-input NAND gate logic IC manufactured by onsemi in a 14-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The MC74ACT00D operates within the 74ACT logic family standard, which defines compatible electrical and mechanical parameters across multiple manufacturers.

Substiute Parts

MC74ACT00D

onsemiIn Stock: 2216MC74ACT00D Datasheet

Current PartRFQ

MC74ACT00DG

onsemiIn Stock: 1997MC74ACT00DG Datasheet

DirectRFQ

CD74ACT00M

Harris CorporationIn Stock: 2417CD74ACT00M Datasheet

DirectRFQ

SN74ACT00D

Texas InstrumentsIn Stock: 2164SN74ACT00D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MC74ACT00D is determined by strict adherence to the 74ACT logic family standard. All substitute parts must maintain identical functional specifications: 4-channel NAND gate configuration, 2 inputs per gate, 14-SOIC package geometry, and compatible electrical parameters including supply voltage range (4.5V ~ 5.5V), output current ratings (24mA), and input logic thresholds (0.8V low, 2V high).

The substitute parts are grouped as follows:

Direct Equivalents maintain all electrical and mechanical parameters within specification tolerance, differing only in manufacturer or packaging format (tube vs. reel).

Compatible Substitutes meet all functional and package requirements with minor variations in non-critical parameters such as quiescent current or propagation delay, provided these variations remain within acceptable operating margins for the application.

Parameter Comparison

Engineering Selection Recommendations

MC74ACT00DG (onsemi) is the primary recommended substitute. This part is manufactured by the same supplier as the original MC74ACT00D, maintains identical electrical specifications, and carries Active product status with ROHS3 compliance. The tube packaging format is standard for production environments.

SN74ACT00D (Texas Instruments) is a secondary option for applications where lower quiescent current (2 µA vs. 4 µA) provides design advantage. This part meets all functional requirements and carries ROHS3 compliance. Note the operating temperature range is restricted to -40°C ~ 85°C compared to the original -55°C ~ 125°C specification.

CD74ACT00M (Harris Corporation) is suitable only for legacy system maintenance where existing inventory must be matched. This part is obsolete and non-RoHS compliant. The propagation delay specification (13.2ns) exceeds the original (9ns), which may impact timing-critical applications.

Frequently Asked Questions (FAQ)

Q: Can MC74ACT00DG be used as a direct replacement for MC74ACT00D?

A: Yes. Both parts are manufactured by onsemi, share identical electrical parameters, and use the same 14-SOIC package. The primary difference is product status (Active vs. Obsolete) and packaging format (tube). MC74ACT00DG is the recommended substitute for new designs and production.

Q: What is the impact of the SN74ACT00D operating temperature range (-40°C ~ 85°C vs. -55°C ~ 125°C)?

A: The SN74ACT00D has a narrower operating range. If your application requires operation below -40°C or above 85°C, the SN74ACT00D is not suitable. For standard industrial and commercial temperature ranges, this restriction is typically not a limiting factor.

Q: Why does CD74ACT00M have a longer propagation delay (13.2ns)?

A: Propagation delay variation is inherent to manufacturing process differences between suppliers. The 13.2ns specification for CD74ACT00M remains within acceptable logic family tolerances but may affect timing margins in high-speed applications. Verify timing requirements before selection.

Q: Are all substitute parts pin-compatible with MC74ACT00D?

A: Yes. All listed substitutes use the 14-SOIC package with identical pinout. Direct PCB substitution is possible without layout modification.

Q: What is the significance of RoHS compliance status?

A: ROHS3-compliant parts (MC74ACT00DG, SN74ACT00D) meet current environmental regulations for lead-free manufacturing. Non-compliant parts (MC74ACT00D, CD74ACT00M) may face procurement restrictions in regulated markets. For new designs, ROHS3-compliant substitutes are recommended.