SN74LS375DR Equivalent & Substitute Parts

Part Overview

The SN74LS375DR is a quad bistable latch logic integrated circuit manufactured by Texas Instruments, featuring D-type transparent latch architecture with differential output configuration. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The part operates within the 74LS logic family standard and is packaged in a 16-SOIC surface mount configuration.

Substiute Parts

SN74LS375DR

Texas InstrumentsIn Stock: 5764SN74LS375DR Datasheet

Current PartRFQ

SN74LS375D

Texas InstrumentsIn Stock: 3157SN74LS375D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74LS375DR is determined by strict equivalence across the following critical parameters:

• Logic Type: D-Type Transparent Latch (4-channel configuration)
• Output Type: Differential
• Independent Circuits: 4
• Voltage Supply Range: 4.75V ~ 5.25V
• Propagation Delay: 12ns
• Output Current Specifications: 400µA (high), 8mA (low)
• Operating Temperature Range: 0°C ~ 70°C
• Package Configuration: 16-SOIC surface mount

The SN74LS375D qualifies as a direct substitute based on identical electrical characteristics and mechanical compatibility. The primary distinction is product status and packaging format, with the substitute part maintaining active production status.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS375D is a direct functional equivalent to the SN74LS375DR. Both components maintain identical electrical performance specifications and mechanical compatibility within the 16-SOIC package format. The SN74LS375D is preferred for new designs and ongoing procurement due to its active product status, ensuring long-term availability and supply chain continuity. Both parts satisfy ROHS3 compliance and REACH regulatory requirements, with equivalent moisture sensitivity classifications. The transition from the obsolete SN74LS375DR to the active SN74LS375D presents no technical barriers to implementation.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS375D directly replace the SN74LS375DR in existing designs?

A: Yes. The SN74LS375D is electrically and mechanically equivalent to the SN74LS375DR. All electrical parameters, including supply voltage, propagation delay, output current, and operating temperature range, are identical. The 16-SOIC package dimensions are equivalent, enabling direct PCB-level substitution.

Q: What is the primary reason for seeking a substitute for the SN74LS375DR?

A: The SN74LS375DR is classified as obsolete. The SN74LS375D maintains active production status, providing assured long-term availability and supply chain reliability.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both the SN74LS375DR and SN74LS375D carry identical ROHS3 compliance and REACH unaffected status. Moisture sensitivity levels are equivalent at MSL 1 (Unlimited).

Q: What packaging formats are available for the 74LS375 logic family?

A: The SN74LS375D is supplied in tube packaging format. Both the main part and substitute maintain the 16-SOIC surface mount package configuration with 0.154" (3.90mm) width specification.

Q: Are there any performance differences in propagation delay or output current between these parts?

A: No. Both components specify identical propagation delay of 12ns and output current ratings of 400µA (high) and 8mA (low).