SN74LS32D Equivalent & Substitute Parts

Part Overview

The SN74LS32D is a 4-channel 2-input OR Gate logic IC manufactured by Texas Instruments in 14-SOIC surface mount packaging. This component is classified as discontinued at DiGi Electronics, making substitute parts necessary for ongoing production and maintenance applications. The SN74LS32D operates within the 74LS logic family and provides standard OR gate functionality for digital logic circuits requiring voltage levels between 4.75V and 5.25V.

Substiute Parts

SN74LS32D

Texas InstrumentsIn Stock: 884SN74LS32D Datasheet

Current PartRFQ

SN74LS32DR

Texas InstrumentsIn Stock: 9717SN74LS32DR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74LS32D is determined by strict equivalence across the following critical parameters:

• Logic Type: OR Gate function
• Number of Circuits: 4 channels
• Number of Inputs: 2 inputs per gate
• Voltage Supply Range: 4.75V ~ 5.25V
• Output Current Specifications: 400µA (high), 8mA (low)
• Input Logic Levels: 0.8V (low), 2V (high)
• Propagation Delay: 22ns @ 5V, 15pF
• Operating Temperature Range: 0°C ~ 70°C
• Package Type: 14-SOIC surface mount
• Series: 74LS

The SN74LS32DR qualifies as a direct substitute because it maintains identical electrical characteristics, logic configuration, and physical packaging while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS32DR is the appropriate substitute for the SN74LS32D. Both components are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications. The primary distinction is product status: the SN74LS32D is discontinued at DiGi Electronics, while the SN74LS32DR maintains active status with significantly higher inventory availability (9700 Pcs versus 860 Pcs). Both parts carry ROHS3 compliance and identical moisture sensitivity ratings, ensuring regulatory and environmental compatibility. The SN74LS32DR is supplied in Cut Tape (CT) and Digi-Reel® packaging formats, providing flexibility for production environments.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS32DR replace the SN74LS32D in existing designs?

A: Yes. The SN74LS32DR is a direct electrical and mechanical equivalent. All functional parameters, voltage specifications, timing characteristics, and package dimensions are identical. Pin configuration and logic behavior remain unchanged.

Q: What is the difference between SN74LS32D and SN74LS32DR?

A: The primary difference is product status and packaging format. The SN74LS32D is discontinued, while the SN74LS32DR is active. The SN74LS32DR is supplied in Cut Tape (CT) and Digi-Reel® formats, whereas the SN74LS32D was supplied in standard packaging. Electrical specifications are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical RoHS3 compliance, REACH unaffected status, and moisture sensitivity level ratings. Regulatory and environmental certifications are equivalent.

Q: What packaging options are available for the substitute part?

A: The SN74LS32DR is available in Cut Tape (CT) and Digi-Reel® packaging. Both formats maintain the 14-SOIC surface mount package configuration with 0.154" width (3.90mm).

Q: Is the SN74LS32DR suitable for new production designs?

A: Yes. The active product status, high inventory availability, and identical electrical specifications make the SN74LS32DR suitable for new production designs and ongoing manufacturing requirements.