DM74AS30N NAND Gate IC Equivalent & Substitute Parts

Part Overview

The DM74AS30N is a NAND Gate IC featuring 1 channel with 8 inputs in a 14-MDIP package, manufactured by onsemi. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The 74AS series logic gate remains functionally relevant in legacy systems and applications requiring direct pin-compatible replacements.

Substiute Parts

DM74AS30N

onsemiIn Stock: 2403DM74AS30N Datasheet

Current PartRFQ

SN74AS30N

Texas InstrumentsIn Stock: 3181SN74AS30N Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DM74AS30N is determined by strict equivalence across the following critical parameters:

• Logic Function: NAND Gate with identical 1 channel, 8-input configuration
• Electrical Specifications: Matching supply voltage range (4.5V ~ 5.5V), output current ratings (2mA high, 20mA low), input logic thresholds (0.8V low, 2V high), and propagation delay (5ns @ 5V, 50pF)
• Thermal Range: Operating temperature 0°C ~ 70°C
• Package Compatibility: 14-DIP through-hole mounting with 0.300" (7.62mm) pitch
• Base Series: 74AS logic family

The SN74AS30N from Texas Instruments meets all these criteria as a parametric equivalent, with identical functional and electrical characteristics. Both parts share the same base product number (74AS30) and are pin-compatible within the specified 14-DIP package.

Parameter Comparison

Engineering Selection Recommendations

The SN74AS30N is the direct substitute for the obsolete DM74AS30N. Selection is based on:

• Product Status: The SN74AS30N maintains active status with Texas Instruments, ensuring continued availability and supply chain reliability compared to the obsolete DM74AS30N.
• Compliance: The SN74AS30N is ROHS3 compliant, providing environmental and regulatory advantages over the legacy onsemi part.
• Electrical Equivalence: Both parts are fully interchangeable within the specified electrical and thermal operating ranges.
• Package Compatibility: Identical 14-DIP through-hole packaging enables direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the SN74AS30N directly replace the DM74AS30N in existing designs?

A: Yes. The SN74AS30N is pin-compatible and electrically equivalent. Both parts feature identical logic function, supply voltage range, output current ratings, input thresholds, propagation delay, and operating temperature range within the 14-DIP package.

Q: What is the primary reason to substitute the DM74AS30N?

A: The DM74AS30N is classified as obsolete. The SN74AS30N from Texas Instruments provides an active, supported alternative with identical electrical and functional specifications.

Q: Are there package differences between these parts?

A: Both parts use the 14-DIP (0.300", 7.62mm) through-hole package. No package conversion or board redesign is required for substitution.

Q: What compliance certifications apply to the substitute part?

A: The SN74AS30N is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: Are the electrical characteristics identical between DM74AS30N and SN74AS30N?

A: Yes. Both parts share identical supply voltage (4.5V ~ 5.5V), output current (2mA high, 20mA low), input logic levels (0.8V low, 2V high), propagation delay (5ns @ 5V, 50pF), and operating temperature range (0°C ~ 70°C).