DM74AS00M NAND Gate IC Equivalent & Substitute Parts

Part Overview

The DM74AS00M 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 procurement. The DM74AS00M operates within a 4.5V to 5.5V supply voltage range with a maximum propagation delay of 4.5ns at 5V with 50pF load, suitable for standard TTL logic applications requiring NAND gate functionality.

Substiute Parts

DM74AS00M

onsemiIn Stock: 1971DM74AS00M Datasheet

Current PartRFQ

SN74AS00DR

Texas InstrumentsIn Stock: 31689SN74AS00DR Datasheet

DirectRFQ

SN74AS00NSR

Texas InstrumentsIn Stock: 3840SN74AS00NSR Datasheet

SimilarRFQ

SN74AS00D

Texas InstrumentsIn Stock: 1057SN74AS00D Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the DM74AS00M is determined by strict electrical and mechanical parameter matching across the 74AS series base product. All substitute parts maintain identical logic functionality (4-channel 2-input NAND gate), electrical specifications (4.5V ~ 5.5V supply, 2mA/20mA output current, 0.8V/2V input logic levels, 4.5ns propagation delay), and operating temperature range (0°C ~ 70°C).

Substitute parts are grouped into three categories based on packaging and product status:

Direct Manufacturer Equivalent (SN74AS00DR): Identical electrical parameters and 14-SOIC package footprint with Tape & Reel packaging. Active product status from Texas Instruments.

Similar Manufacturer Part (SN74AS00NSR): Identical electrical parameters with 14-SO package (0.209", 5.30mm width) versus the original 14-SOIC (0.154", 3.90mm width). Active product status from Texas Instruments. Package width difference requires PCB layout verification.

Parametric Equivalent (SN74AS00D): Identical electrical parameters and 14-SOIC package footprint with Tube packaging. Last Time Buy product status from Texas Instruments.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: SN74AS00DR (Texas Instruments)

The SN74AS00DR is the recommended substitute for new designs and ongoing production. This part maintains identical electrical parameters and 14-SOIC package dimensions to the DM74AS00M, ensuring direct PCB compatibility without layout modifications. Active product status from Texas Instruments provides long-term availability and supply chain stability. ROHS3 compliance supports environmental and regulatory requirements.

Secondary Selection: SN74AS00D (Texas Instruments)

The SN74AS00D provides parametric equivalence with identical electrical specifications and package footprint. This option is suitable for applications where Tube packaging is acceptable. Last Time Buy status indicates limited future availability; procurement should prioritize SN74AS00DR for new projects.

Alternative Selection: SN74AS00NSR (Texas Instruments)

The SN74AS00NSR maintains all electrical parameters but uses a 14-SO package with increased width (0.209" versus 0.154"). This part is electrically compatible but requires PCB layout verification to confirm footprint compatibility with existing designs. Active product status ensures availability. Selection of this part should be limited to applications where package width difference does not conflict with board layout constraints.

Frequently Asked Questions (FAQ)

Q: Can SN74AS00DR be used as a direct replacement for DM74AS00M without PCB modifications?

A: Yes. The SN74AS00DR maintains identical electrical parameters and 14-SOIC package dimensions (0.154", 3.90mm width) to the DM74AS00M. No PCB layout changes are required for direct substitution.

Q: What is the difference between SN74AS00DR and SN74AS00NSR?

A: Both parts are electrically identical with matching logic functionality and electrical specifications. The primary difference is package width: SN74AS00DR uses 14-SOIC (0.154", 3.90mm), while SN74AS00NSR uses 14-SO (0.209", 5.30mm). PCB footprint compatibility must be verified before selecting SN74AS00NSR.

Q: Why is DM74AS00M listed as obsolete?

A: The DM74AS00M is classified as obsolete by onsemi. Texas Instruments offers active alternatives (SN74AS00DR and SN74AS00NSR) that provide equivalent functionality and electrical performance for ongoing design support.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. SN74AS00DR, SN74AS00NSR, and SN74AS00D are all ROHS3 compliant, meeting environmental and regulatory requirements for modern applications.

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

A: Tape & Reel (TR) packaging is used for automated assembly processes and high-volume production. Tube packaging is used for manual assembly or lower-volume applications. Both packaging types contain identical components with the same electrical specifications.

Q: Can I use SN74AS00D for new production designs?

A: SN74AS00D is classified as Last Time Buy, indicating limited future availability. For new production designs, SN74AS00DR is the recommended choice due to its Active product status and long-term supply assurance.

Q: Are the electrical characteristics identical across all substitute parts?

A: Yes. All substitute parts (SN74AS00DR, SN74AS00NSR, and SN74AS00D) maintain identical electrical specifications including supply voltage (4.5V ~ 5.5V), output current (2mA, 20mA), input logic levels (0.8V, 2V), propagation delay (4.5ns @ 5V, 50pF), and operating temperature range (0°C ~ 70°C).