DM74S05N Equivalent & Substitute Parts

Part Overview

The DM74S05N is a 6-channel inverter IC with open collector outputs in a 14-pin DIP package, manufactured by onsemi. This logic component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The DM74S05N operates within the standard TTL voltage range and provides reliable signal inversion for digital logic circuits requiring open collector output configuration.

Substiute Parts

DM74S05N

onsemiIn Stock: 1176DM74S05N Datasheet

Current PartRFQ

SN74S05N

Texas InstrumentsIn Stock: 4047SN74S05N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DM74S05N is determined by strict equivalence across the following critical parameters:

• Logic type and function (6-channel inverter with open collector output)
• Circuit count (6) and input count (1)
• Supply voltage range (4.75V ~ 5.25V)
• Output current specification (20mA low)
• Input logic levels (0.8V low, 2V high)
• Operating temperature range (0°C ~ 70°C)
• Package type and pin configuration (14-DIP)
• Through-hole mounting compatibility

The SN74S05N from Texas Instruments meets all these criteria and shares the identical 74S05 base product number, confirming functional and electrical equivalence.

Parameter Comparison

Engineering Selection Recommendations

The SN74S05N from Texas Instruments is the direct equivalent substitute for the obsolete DM74S05N. Both components are classified under the identical 74S05 base product number and maintain full electrical and functional equivalence across all specified parameters.

The SN74S05N offers the advantage of active product status, ensuring continued availability and supply chain reliability. The component demonstrates improved propagation delay performance (7.5ns versus 11ns), providing enhanced speed characteristics while maintaining backward compatibility with existing circuit designs.

Both parts comply with REACH regulations and carry the same ECCN and HTSUS classifications, confirming regulatory equivalence. The SN74S05N is RoHS3 compliant, meeting modern environmental standards.

Frequently Asked Questions (FAQ)

Q: Can the SN74S05N directly replace the DM74S05N in existing circuits?

A: Yes. Both components share identical electrical specifications, pin configurations, and package dimensions. The SN74S05N is a direct pin-for-pin replacement with no circuit modifications required.

Q: What is the difference in propagation delay between these parts?

A: The SN74S05N exhibits a maximum propagation delay of 7.5ns at 5V with 50pF load, compared to 11ns for the DM74S05N. This represents improved performance while maintaining full compatibility.

Q: Are there packaging differences between the DM74S05N and SN74S05N?

A: Both components use identical 14-DIP (0.300", 7.62mm) through-hole packages. No PCB layout modifications are necessary for substitution.

Q: Why is the DM74S05N classified as obsolete?

A: The DM74S05N has reached end-of-life status with onsemi. The SN74S05N from Texas Instruments remains in active production, providing a viable long-term alternative for new designs and replacement applications.

Q: Are compliance certifications equivalent between the two parts?

A: Yes. Both components maintain identical REACH status, ECCN classification (EAR99), and HTSUS codes. The SN74S05N additionally carries RoHS3 compliance certification.