DM74ALS02N Equivalent & Substitute Parts

Part Overview

The DM74ALS02N is a NOR Gate IC with 4 channels and 2 inputs per channel, manufactured by onsemi in a 14-MDIP package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The DM74ALS02N operates within the 74ALS logic family standard, which defines compatible electrical and mechanical parameters for direct substitution.

Substiute Parts

DM74ALS02N

onsemiIn Stock: 1978DM74ALS02N Datasheet

Current PartRFQ

SN74ALS02AN

Texas InstrumentsIn Stock: 1921SN74ALS02AN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DM74ALS02N is determined by strict equivalence across the following parameters:

• Logic family and base product number (74ALS02)
• Functional configuration: 4-channel NOR gate with 2 inputs per channel
• Electrical specifications: supply voltage range, output current ratings, input logic levels, and propagation delay
• Physical package: 14-DIP form factor with 0.300" (7.62mm) pitch
• Mounting technology: Through-hole configuration

The SN74ALS02AN from Texas Instruments meets all these criteria and qualifies as a direct equivalent substitute. Both parts share identical electrical performance characteristics and mechanical compatibility, differing only in manufacturer and product status.

Parameter Comparison

Engineering Selection Recommendations

The SN74ALS02AN is the qualified substitute for the DM74ALS02N. Selection between these parts should be based on availability and compliance requirements:

• The SN74ALS02AN carries Active product status, ensuring continued availability and manufacturing support from Texas Instruments.
• The SN74ALS02AN is RoHS3 compliant, meeting current environmental and regulatory standards for new designs.
• Both parts maintain identical electrical and mechanical specifications, ensuring direct pin-for-pin and functional compatibility.
• The DM74ALS02N, classified as obsolete, should be replaced with the SN74ALS02AN in new designs and production planning.

Frequently Asked Questions (FAQ)

Q: Can the SN74ALS02AN replace the DM74ALS02N in existing designs?

A: Yes. The SN74ALS02AN is a direct equivalent substitute. Both parts share identical electrical specifications, logic configuration, and 14-DIP package dimensions. No circuit modifications are required.

Q: Are there differences in package dimensions between these parts?

A: No. Both the DM74ALS02N and SN74ALS02AN use the 14-DIP (0.300", 7.62mm) package format. Pin spacing, lead pitch, and mounting hole locations are identical, enabling direct PCB compatibility.

Q: What is the significance of the product status difference?

A: The DM74ALS02N is obsolete, indicating onsemi has discontinued manufacturing. The SN74ALS02AN is active, meaning Texas Instruments continues production and provides ongoing supply chain support. For new designs and long-term production, the active part is the appropriate choice.

Q: Do compliance certifications differ between these parts?

A: The SN74ALS02AN is RoHS3 compliant. Both parts are REACH unaffected and carry the same ECCN and HTSUS classifications. For applications requiring RoHS compliance, the SN74ALS02AN is the specified choice.

Q: Are the electrical performance characteristics identical?

A: Yes. Supply voltage range, output current ratings, input logic levels, propagation delay, and operating temperature range are identical across both parts. Functional performance in circuit applications is equivalent.