DM74LS151N Equivalent & Substitute Parts

Part Overview

The DM74LS151N is a 1 x 8:1 multiplexer logic IC manufactured by onsemi in a 16-DIP package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The Texas Instruments SN74LS151N provides direct functional and electrical equivalence while maintaining active product status.

Substiute Parts

DM74LS151N

onsemiIn Stock: 1426DM74LS151N Datasheet

Current PartRFQ

SN74LS151N

Texas InstrumentsIn Stock: 13554SN74LS151N Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DM74LS151N with the SN74LS151N is based on strict equivalence across all critical electrical and mechanical parameters:

• Circuit Configuration: Both parts implement identical 1 x 8:1 multiplexer logic
• Electrical Specifications: Output current ratings (400µA high, 8mA low), supply voltage range (4.75V ~ 5.25V), and operating temperature (0°C ~ 70°C) are identical
• Package Compatibility: Both use 16-DIP (0.300", 7.62mm) through-hole packaging with 16-PDIP supplier designation
• Series Classification: Both belong to the 74LS logic family with matching base product number 74LS151

The SN74LS151N qualifies as a direct substitute due to complete parameter alignment and active product status from Texas Instruments.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS151N from Texas Instruments is the appropriate substitute for the obsolete DM74LS151N. Selection is based on:

• Product Status: The SN74LS151N maintains active product status, ensuring continued availability and supply chain reliability
• Electrical Equivalence: All specified electrical parameters match exactly, including output current ratings, supply voltage range, and operating temperature specifications
• Package Compatibility: Identical 16-DIP through-hole packaging enables direct board-level substitution without layout modifications
• Compliance Alignment: Both parts maintain REACH Unaffected status, supporting regulatory requirements
• Series Continuity: Both components belong to the 74LS logic family, maintaining design consistency

Frequently Asked Questions (FAQ)

Q: Can the SN74LS151N replace the DM74LS151N in existing designs?

A: Yes. The SN74LS151N provides complete electrical and mechanical equivalence. All critical parameters—circuit configuration, output current ratings, supply voltage range, operating temperature, and package dimensions—are identical, enabling direct substitution.

Q: Are there any package differences between these parts?

A: No. Both parts use 16-DIP (0.300", 7.62mm) through-hole packaging with identical pin configurations and spacing. No PCB layout modifications are required.

Q: What is the difference in product status between these parts?

A: The DM74LS151N is classified as obsolete, while the SN74LS151N maintains active product status. This makes the SN74LS151N the recommended choice for new designs and ongoing production.

Q: Are the electrical specifications identical?

A: Yes. Both parts specify identical output current ratings (400µA high, 8mA low), supply voltage range (4.75V ~ 5.25V), and operating temperature range (0°C ~ 70°C).

Q: Do both parts meet the same regulatory requirements?

A: Both parts maintain REACH Unaffected status. Compliance documentation should be verified with the respective manufacturers for specific application requirements.