SN74LS375DRE4 Equivalent & Substitute Parts

Part Overview

The SN74LS375DRE4 is a D-Type Transparent Latch quad bistable logic IC manufactured by Texas Instruments in the 74LS series. This component functions as a 4-channel latch with differential output, designed for digital logic applications requiring data storage and control. The SN74LS375DRE4 is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations. Substitute parts must maintain identical electrical characteristics, pin configuration, and package specifications to ensure direct compatibility.

Substiute Parts

SN74LS375DRE4

Texas InstrumentsIn Stock: 725SN74LS375DRE4 Datasheet

Current PartRFQ

SN74LS375D

Texas InstrumentsIn Stock: 3157SN74LS375D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS375DRE4 is determined by the following critical parameters:

• Logic Type: D-Type Transparent Latch (4-channel configuration)
• Circuit Configuration: 1:1 ratio
• Output Type: Differential
• Electrical Specifications: Supply voltage 4.75V ~ 5.25V, propagation delay 12ns, output current ratings 400µA (high) and 8mA (low)
• Package: 16-SOIC surface mount form factor
• Pin Configuration: Identical pinout required for direct replacement

The SN74LS375D qualifies as a direct substitute based on matching all electrical parameters, circuit configuration, and package specifications. The primary distinction is packaging format: the SN74LS375DRE4 is supplied in Tape & Reel format, while the SN74LS375D is supplied in Tube packaging. Both variants share identical die and electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS375D is the direct functional equivalent for the SN74LS375DRE4. Selection between these parts is determined by procurement and assembly requirements rather than electrical performance:

• The SN74LS375D is classified as Active product status, ensuring continued availability and manufacturing support from Texas Instruments.
• The SN74LS375DRE4, classified as Obsolete, may face supply constraints and extended lead times.
• Both parts maintain identical ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements.
• Both parts carry MSL Level 1 (Unlimited) moisture sensitivity classification, requiring standard handling procedures.
• Packaging format selection (Tube vs. Tape & Reel) depends on assembly line automation and volume requirements; electrical and mechanical compatibility is identical.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS375D directly replace the SN74LS375DRE4 in existing designs?

A: Yes. Both parts share identical electrical specifications, pin configuration, and 16-SOIC package dimensions. Direct substitution is functionally equivalent with no circuit modifications required.

Q: What is the difference between Tape & Reel and Tube packaging?

A: Tape & Reel (TR) packaging is optimized for automated pick-and-place assembly equipment. Tube packaging is used for manual assembly or lower-volume applications. The internal component and electrical performance are identical.

Q: Why is the SN74LS375DRE4 listed as Obsolete?

A: Obsolete status indicates Texas Instruments has discontinued active manufacturing and support for this specific part number variant. The SN74LS375D (Active status) provides equivalent functionality with ongoing manufacturer support.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL Level 1 classification. Regulatory and environmental compliance is equivalent.

Q: What supply voltage range is required for operation?

A: Both parts operate within 4.75V to 5.25V supply voltage range, consistent with standard TTL logic supply specifications.

Q: Is the propagation delay identical between substitute parts?

A: Yes. Both the SN74LS375DRE4 and SN74LS375D specify 12ns propagation delay time, ensuring timing-critical applications maintain identical performance characteristics.