DM74ALS175MX Equivalent & Substitute Parts

Part Overview

The DM74ALS175MX is a single-element D-type flip-flop with 4-bit configuration in a 16-SOIC surface mount package, manufactured by onsemi. This logic component features complementary outputs, positive edge triggering, and master reset functionality. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts maintain identical electrical and mechanical specifications while offering improved availability and product status.

Substiute Parts

DM74ALS175MX

onsemiIn Stock: 2462DM74ALS175MX Datasheet

Current PartRFQ

SN74ALS175D

Texas InstrumentsIn Stock: 2772SN74ALS175D Datasheet

DirectRFQ

SN74ALS175DR

Texas InstrumentsIn Stock: 6208SN74ALS175DR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DM74ALS175MX are qualified based on strict equivalence across the following parameters:

• Functional Type: D-Type flip-flop with 4-bit configuration and master reset function
• Electrical Performance: 50 MHz clock frequency, 17ns maximum propagation delay at 5V with 50pF load, complementary output type
• Output Characteristics: 400µA output high current, 8mA output low current
• Power Supply: 4.5V to 5.5V operating range with 14mA quiescent current
• Package Specification: 16-SOIC (0.154", 3.90mm Width) surface mount configuration
• Operating Temperature Range: 0°C to 70°C
• Trigger Mechanism: Positive edge triggering

The substitute parts SN74ALS175D and SN74ALS175DR, both manufactured by Texas Instruments, meet all specified electrical and mechanical parameters. These parts share the identical base product number 74ALS175 and maintain full pin-for-pin and functional compatibility with the DM74ALS175MX.

Parameter Comparison

Engineering Selection Recommendations

SN74ALS175DR (Texas Instruments) is the primary recommended substitute. This part carries Active product status, ensuring long-term availability and continued manufacturer support. It is ROHS3 compliant and supplied in Tape & Reel packaging, which is standard for production environments. With 6173 pieces in current inventory, this part provides immediate availability for volume requirements.

SN74ALS175D (Texas Instruments) serves as a secondary substitute option. Although classified as Last Time Buy, it maintains full electrical and mechanical equivalence to the DM74ALS175MX. This part is ROHS3 compliant and supplied in Tube packaging. With 2720 pieces in inventory, it remains available for applications where Tape & Reel packaging is not required.

Both Texas Instruments substitutes provide superior product status compared to the obsolete onsemi part, with documented ROHS3 compliance and established supply chains.

Frequently Asked Questions (FAQ)

Q: Are SN74ALS175D and SN74ALS175DR pin-for-pin compatible with DM74ALS175MX?

A: Yes. All three parts share the 16-SOIC package configuration with identical pin assignments. The parts are functionally and electrically equivalent with no design modifications required for substitution.

Q: What is the difference between SN74ALS175D and SN74ALS175DR?

A: Both parts are electrically identical. The primary difference is packaging: SN74ALS175D is supplied in Tube packaging, while SN74ALS175DR is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated assembly processes. Product status also differs, with SN74ALS175DR classified as Active and SN74ALS175D as Last Time Buy.

Q: Why is the DM74ALS175MX classified as obsolete?

A: The DM74ALS175MX is an onsemi product that has reached end-of-life status. Texas Instruments continues to manufacture equivalent 74ALS175 logic components, making the TI substitutes the recommended path forward for new designs and ongoing production.

Q: Can I use these substitutes in existing designs without PCB modifications?

A: Yes. The DM74ALS175MX, SN74ALS175D, and SN74ALS175DR are direct substitutes with identical 16-SOIC package dimensions (0.154", 3.90mm Width) and pin configurations. No PCB layout changes are required.

Q: Are there any compliance differences between the main part and substitutes?

A: The Texas Instruments substitutes (SN74ALS175D and SN74ALS175DR) are ROHS3 compliant. All three parts share identical REACH Unaffected status, ECCN EAR99 classification, and HTSUS code 8542.39.0001. Moisture Sensitivity Level is 1 (Unlimited) for all parts.

Q: Which substitute should I select for new production?

A: SN74ALS175DR is the recommended choice for new production due to its Active product status, ROHS3 compliance, and Tape & Reel packaging standard for automated assembly. This ensures long-term supply continuity and compatibility with modern manufacturing processes.