DM74LS00N NAND Gate IC Equivalent & Substitute Parts

Part Overview

The DM74LS00N is a 4-channel 2-input NAND gate logic IC manufactured by onsemi in a 14-MDIP package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and production continuity. The SN74LS00N from Texas Instruments serves as a direct functional equivalent, offering identical logic performance with improved product status and compliance certifications.

Substiute Parts

DM74LS00N

onsemiIn Stock: 1507DM74LS00N Datasheet

Current PartRFQ

SN74LS00N

Texas InstrumentsIn Stock: 13015SN74LS00N Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DM74LS00N is determined by strict equivalence across the following parameters:

• Logic configuration: 4-channel NAND gate with 2 inputs per channel
• Electrical specifications: 4.75V ~ 5.25V supply voltage, 400µA/8mA output current, matching input logic levels (0.8V low, 2V high)
• Timing performance: Maximum propagation delay of 15ns at 5V
• Physical form factor: 14-DIP through-hole package with 0.300" (7.62mm) pitch
• Base product number: 74LS00

The SN74LS00N from Texas Instruments meets all these criteria and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS00N is the appropriate substitute for the DM74LS00N based on the following factors:

• Product Status: The SN74LS00N maintains active product status, ensuring continued availability and manufacturing support, whereas the DM74LS00N is obsolete.
• Compliance: The SN74LS00N is ROHS3 compliant, meeting current environmental and regulatory requirements. The DM74LS00N is RoHS non-compliant.
• Electrical Equivalence: Both parts share identical logic specifications, supply voltage range, output current ratings, input logic levels, and operating temperature range.
• Package Compatibility: Both components use the 14-DIP through-hole package with matching physical dimensions, enabling direct board-level substitution.
• Regulatory Alignment: Both parts maintain REACH Unaffected and EAR99 ECCN classifications.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS00N be used as a direct replacement for the DM74LS00N in existing designs?

A: Yes. The SN74LS00N is electrically and mechanically equivalent. Both parts feature identical logic configuration, supply voltage, output current, input logic levels, and 14-DIP package dimensions. Direct substitution is possible without circuit modification.

Q: Are there differences in propagation delay between these parts?

A: Both parts specify a maximum propagation delay of 15ns at 5V. The SN74LS00N is characterized at a lower maximum load capacitance (15pF versus 50pF), but this does not affect functional compatibility in standard applications.

Q: What is the significance of the RoHS compliance difference?

A: The SN74LS00N is ROHS3 compliant, meeting current environmental directives for new designs and production. The DM74LS00N is RoHS non-compliant. For applications subject to RoHS requirements, the SN74LS00N is the required choice.

Q: Are the package dimensions identical?

A: Yes. Both the DM74LS00N and SN74LS00N use the 14-DIP package with 0.300" (7.62mm) pitch. Pin-to-pin compatibility is guaranteed, allowing direct socket substitution.

Q: Why is the DM74LS00N listed as obsolete?

A: Obsolete status indicates that the manufacturer (onsemi) has discontinued production. The SN74LS00N from Texas Instruments remains in active production, providing a viable path for design continuity and new applications.