MM74C00M NAND Gate IC Equivalent & Substitute Parts

Part Overview

The MM74C00M is a 4-channel 2-input NAND gate logic IC manufactured by onsemi, housed in a 14-SOIC surface mount package. This device is classified as obsolete, making substitute parts necessary for new designs and production continuity. The MM74C00M operates across a wide supply voltage range of 3V to 15V and is suitable for general-purpose digital logic applications requiring NAND gate functionality.

Substiute Parts

MM74C00M

onsemiIn Stock: 5216MM74C00M Datasheet

Current PartRFQ

SN74AC00DR

Texas InstrumentsIn Stock: 2479SN74AC00DR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MM74C00M is determined by the following critical parameters:

• Logic Function: Identical NAND gate configuration (4 channels, 2 inputs per channel)
• Package Compatibility: 14-SOIC surface mount package with matching pinout
• Electrical Compatibility: Supply voltage range, input/output logic levels, and output drive capability must support the application requirements
• Functional Equivalence: Pin-for-pin compatible replacement with equivalent switching characteristics

The SN74AC00DR from Texas Instruments meets these substitution criteria. Both devices implement the same 4-channel 2-input NAND gate logic in identical 14-SOIC packaging. The SN74AC00DR is an active product, providing design continuity for applications currently using the obsolete MM74C00M.

Parameter Comparison

Engineering Selection Recommendations

The SN74AC00DR is the qualified substitute for the MM74C00M based on the following factors:

• Pin-for-Pin Compatibility: Both devices use the 14-SOIC package with identical pinout, enabling direct board-level replacement without layout modifications.
• Active Product Status: The SN74AC00DR is an active product from a major manufacturer, ensuring long-term availability and supply chain stability compared to the obsolete MM74C00M.
• Regulatory Compliance: Both parts maintain REACH Unaffected status and carry identical MSL ratings, meeting environmental and handling requirements.
• Functional Equivalence: The SN74AC00DR performs the identical 4-channel 2-input NAND gate logic function with superior performance characteristics (faster propagation delay, higher output drive capability).

Design considerations must account for the different supply voltage ranges: the MM74C00M operates from 3V to 15V, while the SN74AC00DR operates from 2V to 6V. Applications operating above 6V supply voltage cannot use the SN74AC00DR as a direct substitute without additional circuit modifications.

Frequently Asked Questions (FAQ)

Q: Can the SN74AC00DR replace the MM74C00M in all applications?

A: Pin-for-pin replacement is possible in the 14-SOIC package. However, the SN74AC00DR has a maximum supply voltage of 6V, while the MM74C00M supports up to 15V. Substitution is valid only for applications operating within the 2V to 6V supply range.

Q: What are the key differences between these two parts?

A: The primary differences are supply voltage range, output drive capability, and propagation delay. The SN74AC00DR offers higher output current (24mA vs. 8mA) and faster switching (8ns vs. 60ns), but operates at lower supply voltages. Both implement identical NAND gate logic in the same package.

Q: Are there any package or pinout differences?

A: No. Both the MM74C00M and SN74AC00DR use the 14-SOIC package with 0.154" width and 3.90mm body width. Pinout is identical, enabling direct PCB replacement.

Q: What is the significance of the obsolete status for the MM74C00M?

A: Obsolete status indicates the MM74C00M is no longer manufactured or supported by onsemi. The SN74AC00DR, as an active product, provides design continuity and ensures availability for new production runs and long-term supply chain reliability.

Q: Are moisture sensitivity levels compatible?

A: Yes. Both parts carry MSL Level 1 (Unlimited), indicating identical moisture handling and storage requirements.