DM7407M Equivalent & Substitute Parts

Part Overview

The DM7407M is a non-inverting buffer logic IC manufactured by onsemi, featuring 6 elements with 1 bit per element in a 14-SOIC surface mount package. This component operates within the 7400 series logic family and is classified as obsolete. Due to its obsolete status and limited availability relative to active alternatives, identifying equivalent substitute parts is essential for ongoing design support and production continuity.

Substiute Parts

DM7407M

onsemiIn Stock: 1428DM7407M Datasheet

Current PartRFQ

SN7407D

Texas InstrumentsIn Stock: 1969SN7407D Datasheet

DirectRFQ

SN7407DR

Texas InstrumentsIn Stock: 105326SN7407DR Datasheet

DirectRFQ

SN7407NSR

Texas InstrumentsIn Stock: 3245SN7407NSR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DM7407M is determined by the following critical parameters:

• Logic Function: Buffer, Non-Inverting (6 elements, 1 bit per element)
• Supply Voltage Range: 4.75V ~ 5.25V
• Operating Temperature Range: 0°C ~ 70°C
• Package Type: 14-SOIC surface mount
• Series Classification: 7400 logic family

The substitute parts identified below maintain functional equivalence across these core parameters. Variations in output type (open collector vs. standard output) and output current ratings represent acceptable engineering trade-offs within the 7400 series logic family, provided the application circuit design accommodates these differences.

Parameter Comparison

Engineering Selection Recommendations

SN7407DR (Texas Instruments) is the primary recommended substitute. This part maintains identical electrical specifications and package dimensions to the DM7407M, operates within the same supply voltage and temperature ranges, and carries Active product status with full RoHS3 compliance. Inventory availability (105,300 pcs) ensures long-term supply continuity.

SN7407D (Texas Instruments) serves as a secondary option with equivalent electrical performance and Last Time Buy status, indicating continued availability during a defined procurement window. RoHS3 compliance is confirmed.

SN7407NSR (Texas Instruments) provides functional equivalence with Active product status and RoHS3 compliance. The package width differs (0.209" vs. 0.154"), requiring PCB layout verification for mechanical fit. This variant is suitable only when board space constraints permit the wider package footprint.

All three substitutes employ open collector output architecture, which differs from the DM7407M standard output. Circuit designs must accommodate pull-up resistor requirements inherent to open collector logic.

Frequently Asked Questions (FAQ)

Q: Can SN7407D, SN7407DR, and SN7407NSR be used interchangeably with DM7407M?

A: Electrical substitution is valid across all three parts within the specified supply voltage (4.75V ~ 5.25V) and operating temperature (0°C ~ 70°C) ranges. However, the open collector output configuration requires circuit-level design accommodation. SN7407D and SN7407DR share identical 14-SOIC package dimensions (0.154", 3.90mm width) and are mechanically interchangeable. SN7407NSR uses a wider 14-SOIC package (0.209", 5.30mm width) and requires PCB layout verification.

Q: What is the significance of open collector output in the substitute parts?

A: Open collector output differs from the standard output of the DM7407M. Open collector architecture requires external pull-up resistors to establish high-level output voltage. Circuit designs must incorporate appropriate pull-up resistor values and supply voltage connections to function correctly with these substitutes.

Q: Why is SN7407DR recommended over SN7407D?

A: SN7407DR maintains Active product status, ensuring indefinite availability and supply chain stability. SN7407D carries Last Time Buy status, indicating a defined end-of-life procurement window. For new designs and long-term production, SN7407DR is the preferred choice.

Q: Does the package width difference of SN7407NSR affect compatibility?

A: SN7407NSR uses a 14-SOIC package with 0.209" width compared to 0.154" for the DM7407M and other substitutes. This wider footprint requires verification against PCB pad layouts and component placement constraints. Mechanical fit must be confirmed before design implementation.

Q: Are there RoHS compliance considerations for substitute selection?

A: The DM7407M is RoHS non-compliant. All three substitute parts (SN7407D, SN7407DR, SN7407NSR) are ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the Texas Instruments substitutes provide full compliance.