AM26C31ID Equivalent & Substitute Parts

Part Overview

The AM26C31ID is a 4/0 driver interface IC manufactured by Texas Instruments in a 16-SOIC surface mount package. This component operates within a 4.5V to 5.5V supply voltage range and supports operating temperatures from -40°C to 85°C. The AM26C31ID is currently in Last Time Buy status, indicating limited availability and the necessity to identify equivalent or substitute components for ongoing production and maintenance requirements.

Substiute Parts

AM26C31ID

Texas InstrumentsIn Stock: 355864AM26C31ID Datasheet

Current PartRFQ

DS26C31TM/NOPB

Texas InstrumentsIn Stock: 1540DS26C31TM/NOPB Datasheet

DirectRFQ

DS26C31TMX/NOPB

Texas InstrumentsIn Stock: 20390DS26C31TMX/NOPB Datasheet

DirectRFQ

AM26C31IDR

Texas InstrumentsIn Stock: 20198AM26C31IDR Datasheet

MFR RecommendedRFQ

ST26C31BDR

STMicroelectronicsIn Stock: 30523ST26C31BDR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM26C31ID is determined by the following critical parameters:

• Number of Drivers/Receivers: 4/0 configuration (mandatory match)
• Package / Case: 16-SOIC form factor with 0.154" width and 3.90mm width (mandatory match)
• Voltage - Supply: 4.5V ~ 5.5V operating range (mandatory match)
• Operating Temperature: -40°C ~ 85°C range (mandatory match)
• Mounting Type: Surface Mount (mandatory match)
• RoHS Status: ROHS3 Compliant (mandatory match)

All identified substitute parts meet these core electrical and mechanical parameters. Variations in protocol support, product status, and packaging format do not affect functional substitution within the specified parameter constraints.

Parameter Comparison

Engineering Selection Recommendations

AM26C31IDR (Texas Instruments) is the manufacturer-recommended substitute. This part maintains identical electrical specifications and packaging to the AM26C31ID while offering Active product status with higher inventory availability. The AM26C31IDR is suitable for direct replacement in new designs and production continuity.

DS26C31TM/NOPB and DS26C31TMX/NOPB (Texas Instruments) are functionally equivalent alternatives with Active product status. These parts support RS422 and RS485 protocols and are available in different packaging formats (Tube and Cut Tape/Digi-Reel respectively). Selection between these variants depends on procurement and assembly requirements.

ST26C31BDR (STMicroelectronics) is a cross-manufacturer substitute meeting all core electrical and mechanical parameters. This part is Active and maintains ROHS3 compliance. The Moisture Sensitivity Level (MSL) rating of 3 (168 Hours) differs from the AM26C31ID specification of MSL 1 (Unlimited), requiring consideration of storage and handling protocols in moisture-sensitive environments.

Frequently Asked Questions (FAQ)

Q: Can the AM26C31IDR directly replace the AM26C31ID in existing designs?

A: Yes. The AM26C31IDR maintains identical electrical specifications (4.5V ~ 5.5V supply, -40°C ~ 85°C operating temperature), driver/receiver configuration (4/0), and 16-SOIC package form factor. Direct substitution is supported without circuit modification.

Q: What is the difference between DS26C31TM/NOPB and DS26C31TMX/NOPB?

A: Both parts are electrically identical with 4/0 driver configuration and identical electrical ratings. The primary difference is packaging format: DS26C31TM/NOPB is supplied in Tube packaging, while DS26C31TMX/NOPB is supplied in Cut Tape (CT) & Digi-Reel format. Selection depends on assembly line requirements and procurement preferences.

Q: Is the ST26C31BDR suitable for applications requiring unlimited moisture exposure?

A: The ST26C31BDR has an MSL rating of 3 (168 Hours), compared to the AM26C31ID MSL rating of 1 (Unlimited). Applications requiring extended storage in high-humidity environments or unlimited moisture exposure should prioritize parts with MSL 1 rating. The ST26C31BDR requires adherence to MSL 3 handling and storage protocols.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts (DS26C31TM/NOPB, DS26C31TMX/NOPB, AM26C31IDR, and ST26C31BDR) maintain ROHS3 compliance, consistent with the AM26C31ID specification.

Q: What is the significance of the AM26C31ID being in Last Time Buy status?

A: Last Time Buy status indicates that the AM26C31ID is no longer in active production and existing inventory is limited. Transition to an Active product status substitute (AM26C31IDR, DS26C31TM/NOPB, DS26C31TMX/NOPB, or ST26C31BDR) is necessary for long-term design continuity and production planning.