AM26C31CDG4 Equivalent & Substitute Parts

Part Overview

The AM26C31CDG4 is a 4/0 Driver interface IC manufactured by Texas Instruments in a 16-SOIC surface mount package. This component is classified as Last Time Buy, indicating discontinued production with limited remaining inventory. The part operates within a 4.5V to 5.5V supply voltage range and supports 0°C to 70°C operating temperatures. Finding equivalent and substitute parts is necessary due to the Last Time Buy status and limited stock availability of 840 pieces.

Substiute Parts

AM26C31CDG4

Texas InstrumentsIn Stock: 873AM26C31CDG4 Datasheet

Current PartRFQ

AM26C31IDR

Texas InstrumentsIn Stock: 20198AM26C31IDR Datasheet

MFR RecommendedRFQ

DS26C31TM/NOPB

Texas InstrumentsIn Stock: 1540DS26C31TM/NOPB Datasheet

UpgradeRFQ

DS26C31TMX/NOPB

Texas InstrumentsIn Stock: 20390DS26C31TMX/NOPB Datasheet

UpgradeRFQ

ST26C31BDR

STMicroelectronicsIn Stock: 30523ST26C31BDR Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM26C31CDG4 is determined by the following critical parameters: identical package type (16-SOIC), matching number of drivers/receivers (4/0), compatible supply voltage range (4.5V ~ 5.5V), and surface mount mounting type. All identified substitute parts meet these core electrical and mechanical requirements. The substitute parts are grouped into two categories: MFR Recommended (same base product line with extended temperature range) and Upgrade options (enhanced protocol support with RS422/RS485 capability).

Parameter Comparison

Engineering Selection Recommendations

The AM26C31IDR is the primary MFR Recommended substitute, maintaining the same Texas Instruments AM26C31 base product line while offering Active product status and extended operating temperature range (-40°C to 85°C). This part is suitable for applications requiring the original AM26C31CDG4 functionality with improved long-term availability.

The DS26C31TM/NOPB and DS26C31TMX/NOPB are Upgrade options that provide RS422 and RS485 protocol support while maintaining electrical compatibility. Both parts are Active products with extended temperature ranges. The DS26C31TMX/NOPB offers the highest inventory availability at 20,338 pieces in Cut Tape & Digi-Reel packaging.

The ST26C31BDR from STMicroelectronics is a cross-manufacturer substitute offering RS422/RS485 protocol support, Active product status, and the highest inventory level at 30,449 pieces. The MSL rating of 3 (168 Hours) requires appropriate moisture control during storage and handling compared to the MSL 1 rating of other options.

All substitute parts maintain ROHS3 compliance and EAR99 ECCN classification consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can AM26C31IDR directly replace AM26C31CDG4 in existing designs? A: Yes. The AM26C31IDR maintains identical electrical specifications (4.5V ~ 5.5V supply, 4/0 driver configuration) and package type (16-SOIC). The extended operating temperature range (-40°C to 85°C versus 0°C to 70°C) provides broader environmental capability without affecting compatibility.

Q: What is the difference between the MFR Recommended and Upgrade substitute categories? A: The MFR Recommended substitute (AM26C31IDR) maintains the same base product line and protocol specifications as the original part. Upgrade options (DS26C31TM/NOPB, DS26C31TMX/NOPB, ST26C31BDR) add RS422/RS485 protocol support, enabling enhanced communication capabilities in applications requiring these standards.

Q: Are packaging differences between substitute parts significant? A: Packaging format (Tube versus Cut Tape & Digi-Reel) affects inventory handling and procurement but does not impact electrical or mechanical compatibility. All parts use identical 16-SOIC surface mount packages with 0.154" width and 3.90mm dimensions.

Q: Does the ST26C31BDR MSL rating of 3 affect usability? A: The MSL 3 rating (168 Hours) requires moisture control during storage and handling, whereas other substitutes have MSL 1 (Unlimited). This affects shelf life and reflow processing windows but does not impact functional performance in the final application.

Q: Which substitute offers the best long-term availability? A: The DS26C31TMX/NOPB and ST26C31BDR both maintain Active product status with high inventory levels (20,338 and 30,449 pieces respectively), ensuring sustained availability for future procurement.