SN74LS32NSRG4 Equivalent & Substitute Parts

Part Overview

The SN74LS32NSRG4 is a 4-channel 2-input OR Gate logic IC manufactured by Texas Instruments in a 14-SO surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. The SN74LS32 series provides standard TTL-compatible OR gate functionality suitable for digital logic circuits requiring OR operations across multiple channels.

Substiute Parts

SN74LS32NSRG4

Texas InstrumentsIn Stock: 875SN74LS32NSRG4 Datasheet

Current PartRFQ

SN74LS32NSR

Texas InstrumentsIn Stock: 5170SN74LS32NSR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS32NSRG4 is determined by strict equivalence across the following critical parameters:

• Logic Type: OR Gate (4 channels, 2 inputs per channel)
• Electrical Specifications: Supply voltage 4.75V ~ 5.25V, output current 400µA/8mA, input logic levels 0.8V/2V, propagation delay 22ns @ 5V with 15pF load
• Operating Temperature Range: 0°C ~ 70°C
• Package: 14-SOIC surface mount form factor
• Compliance: ROHS3 compliant, MSL Level 1

The SN74LS32NSR meets all these criteria and is the manufacturer-recommended substitute. Both parts share identical electrical characteristics, logic functionality, and physical packaging, enabling direct substitution in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS32NSR is the direct equivalent substitute for the SN74LS32NSRG4. Both parts are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications. The primary distinction is product status: the SN74LS32NSRG4 is discontinued, while the SN74LS32NSR remains in active production with higher inventory availability (5094 units in stock versus 815 units for the discontinued part).

Both parts carry ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with modern manufacturing and environmental standards. The SN74LS32NSR is the recommended selection for new designs and ongoing production requirements due to its active status and superior supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS32NSR directly replace the SN74LS32NSRG4 in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The SN74LS32NSR is the manufacturer-recommended substitute and requires no circuit modifications or re-qualification.

Q: What is the difference between SN74LS32NSRG4 and SN74LS32NSR?

A: The parts are functionally equivalent. The primary difference is product status and packaging format. The SN74LS32NSRG4 is discontinued; the SN74LS32NSR is active production. Both use the same 14-SOIC package and share identical electrical specifications.

Q: Are there any compatibility concerns with the 14-SOIC package?

A: No. Both parts use the identical 14-SOIC (0.209", 5.30mm Width) surface mount package. PCB footprints, reflow profiles, and assembly processes remain unchanged.

Q: What supply voltage range is supported?

A: Both parts operate within 4.75V to 5.25V supply voltage range, standard for TTL-compatible logic circuits.

Q: Is the SN74LS32NSR RoHS compliant?

A: Yes. The SN74LS32NSR is ROHS3 compliant with MSL Level 1 rating, meeting current environmental and manufacturing standards.