DM74LS04N Equivalent & Substitute Parts

Part Overview

The DM74LS04N is a 6-channel inverter logic IC manufactured by onsemi in a 14-MDIP package. This component performs basic logic inversion operations and is classified as obsolete. Due to its obsolete status, identifying functionally equivalent substitute parts is essential for design continuity and procurement planning. The SN74LS04N from Texas Instruments provides a direct functional equivalent with improved product status and compliance certifications.

Substiute Parts

DM74LS04N

onsemiIn Stock: 1412DM74LS04N Datasheet

Current PartRFQ

SN74LS04N

Texas InstrumentsIn Stock: 19159SN74LS04N Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DM74LS04N with the SN74LS04N is based on the following criteria:

Electrical Compatibility:

• Identical logic type (Inverter)
• Identical number of circuits (6) and inputs (1)
• Identical supply voltage range (4.75V ~ 5.25V)
• Identical output current specifications (400µA, 8mA)
• Identical input logic levels (Low: 0.8V, High: 2V)
• Identical operating temperature range (0°C ~ 70°C)
• Identical propagation delay specification (15ns @ 5V)

Mechanical Compatibility:

• Identical package type (14-DIP, 0.300", 7.62mm)
• Both use through-hole mounting
• Pin-for-pin compatible

Series Compatibility:

• Both belong to the 74LS logic family

Parameter Comparison

Engineering Selection Recommendations

The SN74LS04N from Texas Instruments is the recommended substitute for the obsolete DM74LS04N. Selection is based on:

Product Status: The SN74LS04N maintains active product status, ensuring continued availability and manufacturer support, whereas the DM74LS04N is obsolete.

Compliance Certifications: The SN74LS04N is ROHS3 compliant, meeting current environmental and regulatory requirements. The DM74LS04N is RoHS non-compliant.

Electrical Equivalence: All critical electrical parameters are identical between the two parts, including supply voltage, output current, input logic levels, and operating temperature range. The SN74LS04N demonstrates superior propagation delay performance at lower capacitive load (15pF vs. 50pF).

Mechanical Compatibility: Both parts use identical 14-DIP packaging and through-hole mounting, enabling direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS04N directly replace the DM74LS04N on existing PCBs?

A: Yes. Both parts use identical 14-DIP packaging with 0.300" (7.62mm) pitch and through-hole mounting. Pin configuration and electrical specifications are identical, enabling direct substitution without PCB modifications.

Q: Are there differences in electrical performance between these parts?

A: Both parts meet identical electrical specifications for supply voltage, output current, input logic levels, and operating temperature. The SN74LS04N demonstrates improved propagation delay performance at lower capacitive loads (15pF vs. 50pF).

Q: What is the significance of the product status difference?

A: The DM74LS04N is classified as obsolete, indicating onsemi no longer manufactures or supports this part. The SN74LS04N maintains active status, ensuring ongoing availability and manufacturer technical support.

Q: Does the RoHS compliance difference affect substitution?

A: The SN74LS04N is ROHS3 compliant, meeting current environmental regulations. The DM74LS04N is RoHS non-compliant. For new designs or applications requiring regulatory compliance, the SN74LS04N is the appropriate choice.

Q: Are there packaging format alternatives?

A: Both parts are available in 14-DIP through-hole packages. The SN74LS04N is supplied in tube packaging. No alternative package formats are specified for direct substitution.