DM74ALS137N Equivalent & Substitute Parts

Part Overview

The DM74ALS137N is a Decoder/Demultiplexer logic integrated circuit manufactured by onsemi, featuring a 1 x 3:8 configuration in a 16-DIP package. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support and component procurement. The part operates with single supply voltage and is designed for through-hole mounting applications. Substitute parts are available from active product lines that maintain electrical and mechanical compatibility with the original specification.

Substiute Parts

DM74ALS137N

onsemiIn Stock: 1144DM74ALS137N Datasheet

Current PartRFQ

SN74ALS137AN

Texas InstrumentsIn Stock: 2585SN74ALS137AN Datasheet

DirectRFQ

SN74ALS138AN

Texas InstrumentsIn Stock: 3299SN74ALS138AN Datasheet

Parametric EquivalentRFQ

SN74AS138N

Texas InstrumentsIn Stock: 2235SN74AS138N Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DM74ALS137N are classified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

• Circuit Configuration: 1 x 3:8 decoder/demultiplexer function
• Package Type: 16-DIP (0.300", 7.62mm) through-hole mounting
• Voltage Supply Range: 4.5V ~ 5.5V single supply
• Output Current Specifications: 400µA (high), 8mA (low)
• Operating Temperature Range: 0°C ~ 70°C
• Logic Series Compatibility: 74ALS and 74AS series

All substitute parts listed maintain these core parameters, ensuring functional and physical interchangeability within the specified operating conditions.

Parameter Comparison

Engineering Selection Recommendations

SN74ALS137AN (Texas Instruments) is the direct manufacturer equivalent, maintaining identical part number designation and electrical specifications. This part is currently in active production status with ROHS3 compliance certification, making it the primary choice for direct replacement applications.

SN74ALS138AN (Texas Instruments) is a parametric equivalent with identical electrical and mechanical specifications. The base product number differs (74ALS138 versus 74ALS137), but all critical operating parameters remain unchanged. This part is active and ROHS3 compliant.

SN74AS138N (Texas Instruments) operates within the same parameter envelope as the original part. The 74AS series represents a different logic family within the TTL logic hierarchy, maintaining voltage supply, output current, temperature range, and package specifications. This part is active and ROHS3 compliant.

All three substitute parts are available from active product lines with current manufacturing status and regulatory compliance documentation, providing long-term component availability compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS137AN be used as a direct replacement for DM74ALS137N?

A: Yes. The SN74ALS137AN maintains identical electrical specifications, circuit configuration, package type, and operating parameters. Both parts function as 1 x 3:8 decoder/demultiplexers in 16-DIP packages with 4.5V ~ 5.5V supply voltage and 0°C ~ 70°C operating temperature range.

Q: What is the difference between SN74ALS138AN and SN74ALS137AN?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The base product number differs (74ALS138 versus 74ALS137), but all critical parameters including circuit configuration, package, voltage supply, output current, and operating temperature are equivalent.

Q: Can the 74AS series part (SN74AS138N) replace the 74ALS series part?

A: Yes. The SN74AS138N maintains all specified electrical parameters: 1 x 3:8 decoder/demultiplexer function, 16-DIP package, 4.5V ~ 5.5V supply voltage, 400µA/8mA output current, and 0°C ~ 70°C operating temperature. The 74AS series represents a different logic family but operates within the same parameter envelope for this application.

Q: Are all substitute parts available in the same package configuration?

A: Yes. All substitute parts are supplied in 16-DIP (0.300", 7.62mm) through-hole packages, maintaining identical physical dimensions and pin configurations for direct board-level replacement.

Q: What compliance certifications apply to the substitute parts?

A: All Texas Instruments substitute parts (SN74ALS137AN, SN74ALS138AN, SN74AS138N) are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.