DM74ALS151M Equivalent & Substitute Parts

Part Overview

The DM74ALS151M is a 1 x 8:1 multiplexer logic IC manufactured by onsemi in a 16-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The DM74ALS151M operates with a single supply voltage of 4.5V to 5.5V and is suitable for applications requiring 8-to-1 data selection in digital logic circuits.

Substiute Parts

DM74ALS151M

onsemiIn Stock: 8691DM74ALS151M Datasheet

Current PartRFQ

SN74ALS151DR

Texas InstrumentsIn Stock: 2752SN74ALS151DR Datasheet

DirectRFQ

SN74ALS151D

Texas InstrumentsIn Stock: 1407SN74ALS151D Datasheet

Parametric EquivalentRFQ

SN74ALS251D

Texas InstrumentsIn Stock: 1640SN74ALS251D Datasheet

Parametric EquivalentRFQ

SN74AS151D

Texas InstrumentsIn Stock: 2579SN74AS151D Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the DM74ALS151M is determined by strict equivalence across the following parameters: multiplexer circuit configuration (1 x 8:1), package type (16-SOIC), mounting method (surface mount), supply voltage range (4.5V ~ 5.5V), output current specifications (2.6mA high, 24mA low), and operating temperature range (0°C ~ 70°C). All identified substitute parts maintain these electrical and mechanical specifications, ensuring functional compatibility in existing designs.

The substitute parts are grouped into two categories: direct manufacturer equivalents from Texas Instruments with identical base part numbers (SN74ALS151DR, SN74ALS151D), and parametric equivalents that share the same functional specifications but may have different base part designations (SN74ALS251D, SN74AS151D).

Parameter Comparison

Engineering Selection Recommendations

For new designs and procurement, SN74ALS151DR is the preferred substitute. This part is manufactured by Texas Instruments with active product status, ROHS3 compliance, and is supplied in tape and reel packaging suitable for automated assembly. It maintains full electrical and mechanical compatibility with the DM74ALS151M.

SN74ALS151D and SN74ALS251D are available as alternatives with last time buy status, indicating limited future availability. Both parts are ROHS3 compliant and supplied in tube packaging. These options are suitable for replacement applications where existing inventory must be refreshed.

SN74AS151D is a parametric equivalent from the 74AS logic family with obsolete status. While electrically compatible, this part should be considered only when other options are unavailable, as its obsolete classification limits long-term procurement viability.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS151DR be used as a direct replacement for DM74ALS151M? A: Yes. SN74ALS151DR maintains identical electrical specifications, package configuration, and mounting type. The primary difference is active product status and ROHS3 compliance certification.

Q: What is the difference between SN74ALS151D and SN74ALS251D? A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The difference lies in their base part designations (74ALS151 versus 74ALS251), though they function identically in 1 x 8:1 multiplexer applications. Both are last time buy status.

Q: Is packaging format important when selecting a substitute? A: Yes. SN74ALS151DR is supplied in tape and reel format for automated assembly, while SN74ALS151D and SN74ALS251D are supplied in tube packaging. Verify your assembly process requirements before selection.

Q: Why is the DM74ALS151M obsolete while some substitutes are active? A: Product status reflects manufacturer support timelines. Texas Instruments maintains active support for SN74ALS151DR, making it the recommended choice for new designs. onsemi has discontinued the DM74ALS151M, necessitating alternative sourcing.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All Texas Instruments substitute parts listed carry ROHS3 compliance certification. The original DM74ALS151M does not specify RoHS status.

Q: Can SN74AS151D be used interchangeably with the ALS variants? A: While SN74AS151D maintains identical electrical and package specifications, it belongs to the 74AS logic family rather than 74ALS. Both families are compatible in this application, but SN74AS151D's obsolete status makes it a secondary choice.