DS75451N Equivalent & Substitute Parts

Part Overview

The DS75451N is a 2/0 Driver IC manufactured by Texas Instruments in an 8-MDIP package. This component is classified as an interface driver designed for through-hole mounting applications. The part is currently listed as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs requiring similar driver functionality.

Substiute Parts

DS75451N

Texas InstrumentsIn Stock: 1560DS75451N Datasheet

Current PartRFQ

SN75451BP

Texas InstrumentsIn Stock: 22495SN75451BP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS75451N is based on the following critical parameters that must align between the main part and substitute candidates:

• Supply Voltage Range: 4.75V ~ 5.25V (5V logic standard)
• Operating Temperature Range: 0°C ~ 70°C
• Package Type: 8-DIP through-hole configuration with 0.300" (7.62mm) pitch
• Driver Configuration: 2-element driver architecture
• Output Characteristics: Open collector output topology
• Pin Compatibility: Identical pinout within 8-DIP standard

The SN75451BP qualifies as a direct substitute based on matching all critical electrical and mechanical parameters while maintaining functional equivalence as a peripheral driver with 2 elements and 2 bits per element.

Parameter Comparison

Engineering Selection Recommendations

The SN75451BP is the designated substitute for the obsolete DS75451N based on the following factors:

Product Status: The DS75451N is obsolete, while the SN75451BP maintains active production status, ensuring long-term availability and supply chain continuity.

Electrical Compatibility: Both parts operate within identical supply voltage ranges (4.75V ~ 5.25V) and temperature specifications (0°C ~ 70°C), ensuring direct functional replacement in existing circuit designs.

Package Equivalence: Both components utilize the 8-DIP through-hole package with 0.300" (7.62mm) pitch, permitting direct socket substitution without PCB redesign.

Compliance Improvement: The SN75451BP achieves ROHS3 compliance, addressing environmental and regulatory requirements that the non-compliant DS75451N does not meet.

Output Specification: The SN75451BP provides documented output current capability (300mA low), enabling precise circuit design validation.

Frequently Asked Questions (FAQ)

Q: Can the SN75451BP directly replace the DS75451N in existing designs?

A: Yes. Both parts share identical supply voltage (4.75V ~ 5.25V), operating temperature range (0°C ~ 70°C), 8-DIP package configuration, and 2-element driver architecture with open collector outputs. Pin-for-pin substitution is supported.

Q: What is the primary reason for substitution?

A: The DS75451N is obsolete. The SN75451BP is an active production part from the same manufacturer with equivalent electrical and mechanical specifications, ensuring continued component availability.

Q: Are there packaging differences between these parts?

A: No. Both parts use the 8-DIP (0.300", 7.62mm) through-hole package. The DS75451N is supplied in 8-MDIP format, while the SN75451BP is supplied in 8-PDIP format; both designations refer to the same physical 8-DIP package standard.

Q: Does the SN75451BP meet modern compliance standards?

A: Yes. The SN75451BP is ROHS3 compliant, whereas the DS75451N is RoHS non-compliant. This makes the substitute suitable for applications requiring environmental compliance certification.

Q: What output current capability should be expected?

A: The SN75451BP provides 300mA output low current. The DS75451N does not specify this parameter in available documentation.