DM74ALS1008AMX Equivalent & Substitute Parts

Part Overview

The DM74ALS1008AMX is a 4-channel AND gate logic IC manufactured by onsemi in a 14-SOIC surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part operates within the 74ALS logic family standard, which defines compatible electrical and mechanical parameters for direct substitution.

Substiute Parts

DM74ALS1008AMX

onsemiIn Stock: 1130DM74ALS1008AMX Datasheet

Current PartRFQ

SN74ALS08DR

Texas InstrumentsIn Stock: 4134SN74ALS08DR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DM74ALS1008AMX is determined by strict adherence to the following parameters:

• Logic family classification (74ALS series)
• Functional equivalence (4-channel AND gate with 2 inputs per channel)
• Electrical specifications (4.5V ~ 5.5V supply voltage, matching input logic levels)
• Package compatibility (14-SOIC surface mount form factor)
• Operating temperature range (0°C ~ 70°C)

The SN74ALS08DR from Texas Instruments meets all these criteria and is classified as an active product, making it a direct functional and electrical equivalent to the obsolete DM74ALS1008AMX.

Parameter Comparison

Engineering Selection Recommendations

The SN74ALS08DR is the recommended substitute for the obsolete DM74ALS1008AMX. Both parts share identical logic family classification, functional specifications, and package geometry. The SN74ALS08DR maintains active product status with Texas Instruments, ensuring long-term availability and supply chain continuity.

Both parts carry identical REACH and ECCN compliance classifications, with MSL rating of 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling. The SN74ALS08DR is RoHS3 compliant, meeting current environmental and regulatory requirements for new designs.

Differences in output current specifications (DM74ALS1008AMX: 2.6mA/24mA versus SN74ALS08DR: 400µA/8mA) and propagation delay (9ns versus 14ns) are within acceptable tolerances for 74ALS logic family applications and do not preclude direct substitution in standard digital logic circuits.

Frequently Asked Questions (FAQ)

Q: Can the SN74ALS08DR directly replace the DM74ALS1008AMX without circuit modifications?

A: Yes. Both parts are 74ALS series AND gates with identical pin configurations, supply voltage requirements, input logic levels, and operating temperature ranges. The 14-SOIC package geometry is identical, enabling direct PCB footprint compatibility.

Q: What is the significance of the different output current ratings?

A: The SN74ALS08DR has lower output current specifications (400µA high, 8mA low) compared to the DM74ALS1008AMX (2.6mA high, 24mA low). This difference reflects manufacturing process variations within the 74ALS family. For standard logic-level applications, both ratings are sufficient. Applications requiring maximum current drive should verify load requirements against the SN74ALS08DR specifications.

Q: Does the 5ns difference in propagation delay affect circuit performance?

A: The DM74ALS1008AMX specifies 9ns maximum propagation delay while the SN74ALS08DR specifies 14ns. This 5ns difference is typical within 74ALS logic family tolerances. Circuit timing analysis should account for the SN74ALS08DR's 14ns specification to ensure system-level timing margins remain adequate.

Q: Are there packaging or handling differences between these parts?

A: Both parts use 14-SOIC surface mount packaging with identical MSL rating of 1 (Unlimited). No special moisture control measures are required during storage or assembly for either part.

Q: Why is the DM74ALS1008AMX classified as obsolete?

A: Obsolete status indicates the manufacturer (onsemi) has discontinued production. The SN74ALS08DR from Texas Instruments remains in active production, providing a viable path for continued component sourcing and design continuity.