DM7407N Equivalent & Substitute Parts

Part Overview

The DM7407N is a non-inverting buffer IC manufactured by onsemi, designed for logic signal buffering applications. It contains 6 buffer elements with 1 bit per element and operates within a 4.75V to 5.25V supply voltage range. The device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

DM7407N

onsemiIn Stock: 2351DM7407N Datasheet

Current PartRFQ

SN7407N

Texas InstrumentsIn Stock: 9022SN7407N Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SN7407N qualifies as a direct substitute based on the following critical parameters:

• Logic Type: Both devices are non-inverting buffers
• Number of Elements: Both contain 6 buffer elements
• Number of Bits per Element: Both have 1 bit per element
• Voltage - Supply: Both operate at 4.75V ~ 5.25V
• Operating Temperature: Both rated 0°C ~ 70°C (TA)
• Package / Case: Both use 14-DIP (0.300", 7.62mm) through-hole packaging
• Mounting Type: Both are through-hole mounted

The SN7407N is manufactured by Texas Instruments and maintains active product status, providing long-term availability compared to the obsolete DM7407N.

Parameter Comparison

Engineering Selection Recommendations

The SN7407N is the qualified substitute for the DM7407N based on functional equivalence across all critical electrical and mechanical parameters. The SN7407N offers the following advantages:

• Active product status ensures continued availability and supply chain reliability
• ROHS3 compliance meets current environmental and regulatory requirements
• Higher output low current specification (40mA vs 21mA) provides improved drive capability
• Identical pinout and package footprint enable direct board-level replacement

Selection of the SN7407N eliminates obsolescence risk associated with the DM7407N while maintaining full functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the SN7407N directly replace the DM7407N on existing circuit boards?

A: Yes. Both devices share identical pinout, package dimensions (14-DIP), and core electrical specifications including supply voltage range (4.75V ~ 5.25V) and operating temperature range (0°C ~ 70°C). Direct board-level substitution is supported.

Q: What is the significance of the output low current difference between these parts?

A: The DM7407N specifies 21mA output low current while the SN7407N specifies 40mA. The SN7407N's higher current capability provides improved noise margin and drive strength for downstream logic circuits. This difference does not prevent substitution; it represents an enhancement.

Q: Why is the DM7407N classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The SN7407N, maintained in active production by Texas Instruments, provides a direct functional replacement with ongoing supply availability.

Q: Does RoHS compliance affect substitution eligibility?

A: RoHS compliance status reflects manufacturing process standards. The SN7407N's ROHS3 compliance meets current environmental regulations, while the DM7407N's non-compliant status may restrict use in regulated applications. Substitution to the SN7407N aligns designs with current compliance requirements.

Q: Are there any package or mounting differences between these devices?

A: No. Both devices use 14-DIP (0.300", 7.62mm) through-hole packaging with identical mechanical specifications, enabling direct socket compatibility.