AM26C31QDRG4 Equivalent & Substitute Parts

Part Overview

The AM26C31QDRG4 is a 4/0 Driver interface IC manufactured by Texas Instruments in a 16-SOIC surface mount package. This component is classified as discontinued at DiGi Electronics, making identification of functionally equivalent alternatives essential for ongoing design support and procurement planning. The part operates within a 4.5V to 5.5V supply voltage range and supports operating temperatures from -40°C to 125°C. Equivalent and substitute parts maintain identical or compatible electrical and mechanical specifications to ensure direct replacement capability in existing circuit designs.

Substiute Parts

AM26C31QDRG4

Texas InstrumentsIn Stock: 703AM26C31QDRG4 Datasheet

Current PartRFQ

AM26C31QDR

Texas InstrumentsIn Stock: 15406AM26C31QDR Datasheet

MFR RecommendedRFQ

DS26C31TM/NOPB

Texas InstrumentsIn Stock: 1540DS26C31TM/NOPB Datasheet

MFR RecommendedRFQ

DS26C31TMX/NOPB

Texas InstrumentsIn Stock: 20390DS26C31TMX/NOPB Datasheet

MFR RecommendedRFQ

ST26C31BDR

STMicroelectronicsIn Stock: 30523ST26C31BDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM26C31QDRG4 is determined by the following critical parameters:

• Number of Drivers/Receivers: Must be 4/0 configuration
• Voltage - Supply: Must support 4.5V ~ 5.5V range
• Package / Case: Must be 16-SOIC (0.154", 3.90mm Width) or equivalent 16-SO package
• Mounting Type: Must be Surface Mount
• RoHS Status: Must maintain ROHS3 Compliance

Substitute parts are grouped into two categories based on product status and protocol support:

Category 1 - Texas Instruments Active Parts: AM26C31QDR, DS26C31TM/NOPB, and DS26C31TMX/NOPB maintain active product status with full Texas Instruments support.

Category 2 - Alternative Manufacturer: ST26C31BDR from STMicroelectronics provides equivalent functionality with active product status and alternative sourcing.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute - AM26C31QDR: This Texas Instruments part maintains identical electrical specifications and operating temperature range (-40°C to 125°C) to the AM26C31QDRG4. It is the direct functional equivalent with active product status and unlimited moisture sensitivity rating. This part is recommended as the first choice for direct replacement.

Secondary Substitutes - DS26C31TM/NOPB and DS26C31TMX/NOPB: Both parts are Texas Instruments products with active status and ROHS3 compliance. These parts support RS422 and RS485 protocols and maintain the 4.5V to 5.5V supply voltage specification. The operating temperature range is reduced to -40°C to 85°C, which is a design consideration for applications requiring the full -40°C to 125°C range of the original part.

Alternative Manufacturer - ST26C31BDR: STMicroelectronics ST26C31BDR provides equivalent 4/0 driver functionality with active product status and ROHS3 compliance. The operating temperature range is -40°C to 85°C. Moisture sensitivity level is rated at MSL 3 (168 hours), which differs from the original part's MSL 1 rating and may require adjusted handling procedures during storage and assembly.

Frequently Asked Questions (FAQ)

Q: Can AM26C31QDR be used as a direct replacement for AM26C31QDRG4?

A: Yes. AM26C31QDR is functionally equivalent with identical electrical specifications, operating temperature range, and package configuration. Both parts are Texas Instruments products with ROHS3 compliance and MSL 1 rating.

Q: What is the difference between AM26C31QDR and DS26C31TM/NOPB?

A: Both are Texas Instruments 4/0 drivers with 4.5V to 5.5V supply voltage and 16-SOIC packaging. DS26C31TM/NOPB includes RS422 and RS485 protocol support and has a reduced operating temperature range of -40°C to 85°C compared to AM26C31QDR's -40°C to 125°C range.

Q: Is ST26C31BDR compatible with the original AM26C31QDRG4?

A: ST26C31BDR maintains the same 4/0 driver configuration, 4.5V to 5.5V supply voltage, and 16-SO package footprint. The operating temperature range is -40°C to 85°C, and the moisture sensitivity level is MSL 3 (168 hours) rather than MSL 1. These differences require evaluation against specific application requirements.

Q: What packaging options are available for substitute parts?

A: AM26C31QDR is available in Cut Tape (CT) and Digi-Reel packaging. DS26C31TM/NOPB is supplied in Tube packaging. DS26C31TMX/NOPB is available in Cut Tape (CT) and Digi-Reel packaging. ST26C31BDR is supplied in Cut Tape (CT) and Digi-Reel packaging.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and are suitable for applications requiring RoHS certification.