SN74LS32DG4 Equivalent & Substitute Parts

Part Overview

The SN74LS32DG4 is a 4-channel OR gate logic IC manufactured by Texas Instruments in 14-SOIC surface mount packaging. This component is discontinued at DiGi Electronics, making substitute parts necessary for ongoing production and maintenance applications. The part operates within the 74LS logic family standard, providing basic OR gate functionality for digital logic circuits requiring 2-input OR operations across four independent channels.

Substiute Parts

SN74LS32DG4

Texas InstrumentsIn Stock: 834SN74LS32DG4 Datasheet

Current PartRFQ

SN74LS32DR

Texas InstrumentsIn Stock: 9717SN74LS32DR Datasheet

DirectRFQ

SN74LS32D

Texas InstrumentsIn Stock: 884SN74LS32D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74LS32DG4 is determined by strict equivalence across the following critical parameters:

• Logic family and type (74LS OR Gate)
• Number of circuits (4 channels)
• Number of inputs per circuit (2-input)
• Electrical specifications (supply voltage, output current, input logic levels, propagation delay)
• Package type (14-SOIC surface mount)
• Operating temperature range (0°C ~ 70°C)
• Compliance certifications (RoHS3, REACH Unaffected)

All substitute parts listed maintain identical electrical and mechanical specifications, ensuring direct functional replacement without circuit redesign or performance degradation.

Parameter Comparison

Engineering Selection Recommendations

SN74LS32DR is the primary substitute for the SN74LS32DG4. This part maintains active product status at the manufacturer and supplier level, with 9700 units in stock. All electrical and mechanical parameters are identical to the original part, and it carries the same compliance certifications (ROHS3 Compliant, REACH Unaffected). The packaging format differs only in supplier delivery method (Cut Tape and Digi-Reel), which does not affect functional performance.

SN74LS32D is a secondary substitute option. While electrically and mechanically equivalent to the SN74LS32DG4, this part is also discontinued at DiGi Electronics with lower inventory availability (860 units). Selection of this part should be based on specific supply chain requirements or existing stock considerations.

Both substitute parts are manufactured by Texas Instruments and require no circuit modifications for direct replacement.

Frequently Asked Questions (FAQ)

Q: Can SN74LS32DR be used as a direct replacement for SN74LS32DG4?

A: Yes. The SN74LS32DR is electrically and mechanically equivalent to the SN74LS32DG4. All critical parameters including supply voltage, output current, input logic levels, propagation delay, operating temperature range, and package type are identical. The only difference is the supplier packaging format (Cut Tape and Digi-Reel versus standard packaging).

Q: What is the difference between SN74LS32DR and SN74LS32D?

A: Both parts are electrically and mechanically identical to the SN74LS32DG4. The primary difference is product status: SN74LS32DR is active with higher inventory availability, while SN74LS32D is discontinued at DiGi Electronics with lower stock levels. Selection depends on supply chain availability and project timeline requirements.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. All substitute parts share the same 14-SOIC package footprint, pin configuration, electrical specifications, and operating characteristics. Direct PCB replacement is possible without design modifications.

Q: Does the packaging format affect performance?

A: No. The packaging format (Cut Tape, Digi-Reel, or standard) is a supplier delivery method only and does not affect electrical performance, reliability, or functionality of the component.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts (SN74LS32DR and SN74LS32D) are ROHS3 Compliant and REACH Unaffected, matching the compliance status of the original SN74LS32DG4.