SN74LS32DRG4 Equivalent & Substitute Parts

Part Overview

The SN74LS32DRG4 is a 4-channel OR gate logic integrated circuit manufactured by Texas Instruments in a 14-SOIC surface mount package. This component is classified as discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. The part operates within a 4.75V to 5.25V supply voltage range and is suitable for digital logic applications requiring OR gate functionality with standard TTL logic levels.

Substiute Parts

SN74LS32DRG4

Texas InstrumentsIn Stock: 905SN74LS32DRG4 Datasheet

Current PartRFQ

SN74LS32DR

Texas InstrumentsIn Stock: 9717SN74LS32DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS32DRG4 is determined by strict equivalence across the following critical parameters:

• Logic function: 4-channel OR gate with 2 inputs per channel
• Electrical specifications: 4.75V to 5.25V supply voltage, 400µA output high current, 8mA output low current
• Input logic levels: 0.8V low threshold, 2V high threshold
• Propagation delay: 22ns maximum at 5V with 15pF load
• Operating temperature range: 0°C to 70°C
• Package format: 14-SOIC surface mount configuration
• Compliance: ROHS3 compliant, MSL Level 1

The SN74LS32DR qualifies as a direct substitute based on identical electrical characteristics, logic configuration, and package specifications. The primary distinction is product status and packaging format availability.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS32DR is the direct substitute for the SN74LS32DRG4. Both parts are manufactured by Texas Instruments with identical electrical and functional specifications. The SN74LS32DR maintains active product status with higher inventory availability (9700 pcs vs. 840 pcs), ensuring supply chain continuity. Both parts meet ROHS3 compliance requirements and carry MSL Level 1 rating, indicating no moisture sensitivity constraints during storage and handling. The SN74LS32DR is available in Cut Tape and Digi-Reel packaging formats, providing flexibility for different procurement and assembly workflows.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS32DR be used as a direct replacement for the SN74LS32DRG4?

A: Yes. Both parts are electrically and functionally identical. They share the same logic configuration (4-channel OR gate), electrical specifications (supply voltage, output current, input logic levels, propagation delay), operating temperature range, and 14-SOIC package format. The primary difference is product status and packaging availability.

Q: What is the difference between SN74LS32DRG4 and SN74LS32DR?

A: The SN74LS32DRG4 is discontinued at DiGi Electronics, while the SN74LS32DR maintains active status. The SN74LS32DR is available in Cut Tape and Digi-Reel packaging, whereas the SN74LS32DRG4 uses Digi-Reel packaging. All electrical and functional parameters are identical.

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

A: No compatibility concerns exist. Both parts use the 14-SOIC surface mount package with identical pinout and electrical characteristics. PCB layout, solder reflow profiles, and circuit design require no modification.

Q: What is the MSL rating for these parts?

A: Both parts carry MSL Level 1 (Unlimited), indicating no moisture sensitivity constraints. Standard storage and handling procedures are sufficient without requiring dry-pack or desiccant storage.

Q: Are both parts RoHS compliant?

A: Yes. Both the SN74LS32DRG4 and SN74LS32DR are ROHS3 compliant, meeting environmental and regulatory requirements for lead-free manufacturing.