DM74ALS151MX Equivalent & Substitute Parts

Part Overview

The DM74ALS151MX is a 1 x 8:1 multiplexer logic integrated circuit 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 production continuity. The DM74ALS151MX operates with a single supply voltage between 4.5V and 5.5V and is suitable for applications requiring high-speed data selection across eight input channels.

Substiute Parts

DM74ALS151MX

onsemiIn Stock: 1944DM74ALS151MX Datasheet

Current PartRFQ

SN74ALS151D

Texas InstrumentsIn Stock: 1407SN74ALS151D Datasheet

DirectRFQ

SN74ALS151DR

Texas InstrumentsIn Stock: 2752SN74ALS151DR Datasheet

Parametric EquivalentRFQ

SN74ALS251DR

Texas InstrumentsIn Stock: 932SN74ALS251DR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DM74ALS151MX are qualified based on strict electrical and mechanical parameter matching within the 74ALS logic family. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Circuit configuration: 1 x 8:1 multiplexer topology
• Package type: 16-SOIC surface mount
• Voltage supply range: 4.5V ~ 5.5V
• Output current specifications: 2.6mA (high), 24mA (low)
• Operating temperature range: 0°C ~ 70°C
• Moisture sensitivity level: 1 (Unlimited)

All substitute parts listed maintain identical electrical performance and physical form factor compatibility with the DM74ALS151MX, enabling direct replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

SN74ALS151DR (Texas Instruments) is the primary substitute for new designs and production. This part maintains active product status with ROHS3 compliance and is available in Tape & Reel packaging, supporting high-volume manufacturing requirements.

SN74ALS151D (Texas Instruments) serves as an alternative substitute with Last Time Buy status. This part is available in Tube packaging and maintains full electrical and mechanical compatibility with the DM74ALS151MX.

SN74ALS251DR (Texas Instruments) is a parametric equivalent with active product status and ROHS3 compliance. While functionally equivalent in the 1 x 8:1 multiplexer configuration, this part carries a different base product number (74ALS251 versus 74ALS151) and should be selected only when the specific 74ALS251 designation is required by design specifications.

All three substitute parts are REACH Unaffected and classified under ECCN EAR99, matching the regulatory status of the original DM74ALS151MX.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS151DR directly replace DM74ALS151MX in existing PCB assemblies?

A: Yes. The SN74ALS151DR maintains identical electrical specifications, output current ratings, supply voltage range, and 16-SOIC package dimensions. Direct pin-for-pin replacement is supported without circuit modification.

Q: What is the difference between SN74ALS151DR and SN74ALS251DR?

A: Both parts are 1 x 8:1 multiplexers with identical electrical performance and package specifications. The primary difference is the base product number designation (74ALS151 versus 74ALS251). Selection between these parts should be based on design documentation requirements or specific product line specifications.

Q: Why is SN74ALS151D listed as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has announced end-of-life for this part. While currently available, procurement should prioritize SN74ALS151DR (Active status) for new designs and long-term production planning.

Q: Are all substitute parts RoHS compliant?

A: Yes. All Texas Instruments substitute parts (SN74ALS151D, SN74ALS151DR, SN74ALS251DR) are ROHS3 Compliant. The original DM74ALS151MX RoHS status was not specified in the provided data.

Q: What packaging formats are available for these substitutes?

A: SN74ALS151D is supplied in Tube packaging. SN74ALS151DR and SN74ALS251DR are supplied in Tape & Reel (TR) format, which is standard for automated assembly operations.

Q: Are there any temperature or voltage operating differences between these parts?

A: No. All parts operate identically across the 0°C to 70°C temperature range with 4.5V to 5.5V supply voltage specifications.