AM26C31CD Equivalent & Substitute Parts

Part Overview

The AM26C31CD 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 it is no longer in active production. The AM26C31CD operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range of 0°C to 70°C. Due to its Last Time Buy status, identifying equivalent and substitute parts is necessary for design continuity and long-term component availability.

Substiute Parts

AM26C31CD

Texas InstrumentsIn Stock: 2246AM26C31CD 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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AM26C31CD is determined by the following critical parameters:

• Electrical Compatibility: Voltage supply range (4.5V ~ 5.5V), driver/receiver configuration (4/0), and package type (16-SOIC)
• Mechanical Compatibility: Surface mount packaging with identical footprint dimensions (0.154", 3.90mm Width)
• Compliance Requirements: ROHS3 compliance and EAR99 classification
• Functional Equivalence: Interface driver functionality with matching pin configuration

Substitute parts must maintain identical electrical specifications and physical package dimensions to ensure direct replacement capability. The AM26C31CD operates at a narrower temperature range (0°C ~ 70°C) compared to active alternatives, which may operate at extended temperature ranges (-40°C ~ 85°C).

Parameter Comparison

Engineering Selection Recommendations

AM26C31IDR (Texas Instruments) is the primary recommended substitute. This part maintains identical electrical and mechanical specifications to the AM26C31CD while offering Active product status and extended operating temperature range (-40°C ~ 85°C). Both parts share MSL 1 rating and ROHS3 compliance.

DS26C31TM/NOPB and DS26C31TMX/NOPB (Texas Instruments) are upgrade alternatives that provide RS422 and RS485 protocol support in addition to standard driver functionality. These parts maintain voltage and package compatibility while offering extended temperature operation and Active status.

ST26C31BDR (STMicroelectronics) is a cross-manufacturer substitute with equivalent electrical and package specifications. This part carries MSL 3 rating (168 Hours) compared to MSL 1 for Texas Instruments alternatives, requiring additional moisture control during storage and handling.

All substitute parts are ROHS3 compliant and EAR99 classified, matching the regulatory profile of the original AM26C31CD.

Frequently Asked Questions (FAQ)

Q: Can AM26C31IDR directly replace AM26C31CD? A: Yes. Both parts share identical voltage supply (4.5V ~ 5.5V), driver/receiver configuration (4/0), package type (16-SOIC), and compliance ratings. The AM26C31IDR offers extended temperature operation and Active product status.

Q: What is the difference between AM26C31IDR and DS26C31TM/NOPB? A: Both parts are electrically and mechanically compatible with AM26C31CD. DS26C31TM/NOPB adds RS422 and RS485 protocol support. Selection depends on whether protocol-specific functionality is required for the application.

Q: Is ST26C31BDR suitable for high-reliability applications? A: ST26C31BDR maintains electrical and package compatibility with AM26C31CD. However, its MSL 3 rating (168 Hours) requires stricter moisture control compared to MSL 1 alternatives. Applications with extended storage or humid environments should consider Texas Instruments options.

Q: What packaging options are available for substitute parts? A: AM26C31IDR is available in Cut Tape (CT) & Digi-Reel packaging. DS26C31TM/NOPB is supplied in Tube packaging. DS26C31TMX/NOPB is available in Cut Tape (CT) & Digi-Reel packaging. Packaging selection affects handling, storage, and integration into automated assembly processes.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts (AM26C31IDR, DS26C31TM/NOPB, DS26C31TMX/NOPB, and ST26C31BDR) are ROHS3 compliant and EAR99 classified, matching the regulatory compliance of AM26C31CD.