DM74ALS32MX Equivalent & Substitute Parts

Part Overview

The DM74ALS32MX is a 4-channel 2-input OR gate logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The DM74ALS32MX operates within the 74ALS logic family standard, which defines compatible electrical and mechanical parameters for direct substitution.

Substiute Parts

DM74ALS32MX

onsemiIn Stock: 6633DM74ALS32MX Datasheet

Current PartRFQ

SN74ALS32D

Texas InstrumentsIn Stock: 1082SN74ALS32D Datasheet

DirectRFQ

SN74ALS32DR

Texas InstrumentsIn Stock: 3853SN74ALS32DR Datasheet

DirectRFQ

SN74ALS32NSR

Texas InstrumentsIn Stock: 4321SN74ALS32NSR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the DM74ALS32MX is determined by strict equivalence across the following parameters:

• Logic Type: OR Gate (4-channel, 2-input configuration)
• Electrical Specifications: Supply voltage 4.5V ~ 5.5V, output current 400µA/8mA, input logic levels 0.8V/2V, propagation delay 14ns @ 5V/50pF
• Operating Temperature Range: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Base Product Number: 74ALS32 (74ALS logic family standard)

Substitute parts are classified into two categories:

Direct Substitutes maintain identical package specifications (14-SOIC, 0.154" width) and are pin-for-pin compatible:

• SN74ALS32D (Texas Instruments)
• SN74ALS32DR (Texas Instruments)

Similar Substitute shares all electrical parameters but uses a different package variant (14-SO, 0.209" width):

• SN74ALS32NSR (Texas Instruments)

Parameter Comparison

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement:

SN74ALS32DR is the primary substitute for the DM74ALS32MX. This part maintains active product status with Texas Instruments, ensuring long-term availability and supply chain stability. It is ROHS3 compliant and identical in all electrical and mechanical parameters, including the 14-SOIC (0.154", 3.90mm Width) package. No PCB layout modifications are required.

SN74ALS32D is an alternative direct substitute with identical electrical and package specifications. However, its Last Time Buy status indicates limited future availability compared to SN74ALS32DR.

For Package-Variant Applications:

SN74ALS32NSR provides electrical equivalence with a wider 14-SO package variant (0.209", 5.30mm Width). This substitute is suitable only for designs where the larger package footprint is accommodated. PCB layout modifications are necessary for this substitution.

All substitute parts share REACH Unaffected and EAR99 ECCN classifications with the original part, maintaining regulatory compliance across applications.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS32DR be used as a direct replacement for DM74ALS32MX without PCB modifications?

A: Yes. SN74ALS32DR is pin-for-pin compatible with identical package dimensions (14-SOIC, 0.154" width), electrical specifications, and operating parameters. No PCB layout changes are required.

Q: What is the difference between SN74ALS32D and SN74ALS32DR?

A: Both parts are electrically and mechanically identical. The primary difference is packaging format: SN74ALS32D is supplied in Tube packaging, while SN74ALS32DR is supplied in Tape & Reel (TR) format. SN74ALS32DR maintains active product status, whereas SN74ALS32D is Last Time Buy.

Q: Can SN74ALS32NSR replace DM74ALS32MX in existing designs?

A: SN74ALS32NSR is electrically equivalent but uses a different package variant (14-SO, 0.209" width versus 14-SOIC, 0.154" width). PCB layout modifications are required. This substitute is suitable only for new designs or redesigns that accommodate the larger package footprint.

Q: Are all substitute parts RoHS compliant?

A: Yes. SN74ALS32D, SN74ALS32DR, and SN74ALS32NSR are all ROHS3 compliant. The original DM74ALS32MX RoHS status was not specified in available documentation.

Q: What is the moisture sensitivity level for these parts?

A: All parts, including the original DM74ALS32MX and all substitutes, have Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Why is the DM74ALS32MX classified as obsolete?

A: Obsolete status indicates the part is no longer manufactured by onsemi. Substitute parts from active manufacturers ensure continued design support and production availability.