AM26C31IDBRE4 Equivalent & Substitute Parts

Part Overview

The AM26C31IDBRE4 is a 4/0 driver interface IC manufactured by Texas Instruments in a 16-SSOP surface mount package. This component is designed for applications requiring RS422/RS485 driver functionality with a supply voltage range of 4.5V to 5.5V and operating temperature range of -40°C to 85°C. The AM26C31IDBRE4 is currently discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and production continuity.

Substiute Parts

AM26C31IDBRE4

Texas InstrumentsIn Stock: 1008AM26C31IDBRE4 Datasheet

Current PartRFQ

AM26C31IDBR

Texas InstrumentsIn Stock: 2382AM26C31IDBR Datasheet

MFR RecommendedRFQ

ST26C31BTR

STMicroelectronicsIn Stock: 1499ST26C31BTR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AM26C31IDBRE4 are qualified based on the following critical parameters:

• Functional Equivalence: 4/0 driver configuration (4 drivers, 0 receivers)
• Electrical Compatibility: Supply voltage range 4.5V to 5.5V
• Temperature Range: Operating temperature -40°C to 85°C
• Mounting and Package: Surface mount technology with compatible pinout
• Compliance: ROHS3 compliance and MSL rating of 1 (Unlimited)

Two substitute parts meet these criteria: the AM26C31IDBR from Texas Instruments and the ST26C31BTR from STMicroelectronics. Both maintain functional equivalence and electrical specifications while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

AM26C31IDBR (Texas Instruments): This part is the direct manufacturer-recommended substitute from Texas Instruments. It maintains identical electrical specifications, supply voltage range, operating temperature range, and package dimensions (16-SSOP). The AM26C31IDBR is currently in active production status with higher inventory availability (2320 pcs) compared to the discontinued AM26C31IDBRE4. This part is the preferred choice for designs requiring continuity with the original Texas Instruments product line.

ST26C31BTR (STMicroelectronics): This part provides functional equivalence with identical electrical specifications and operating parameters. The ST26C31BTR uses a 16-TSSOP package (0.173", 4.40mm width) instead of the 16-SSOP package, resulting in a narrower package footprint. This substitute is suitable for applications where package width reduction is acceptable and PCB layout can accommodate the different package geometry. The ST26C31BTR is in active production with good inventory availability (1444 pcs).

Frequently Asked Questions (FAQ)

Q: Can the AM26C31IDBR be used as a direct replacement for the AM26C31IDBRE4?

A: Yes. The AM26C31IDBR is the manufacturer-recommended substitute from Texas Instruments. Both parts share identical electrical specifications, supply voltage range (4.5V to 5.5V), operating temperature range (-40°C to 85°C), and package dimensions (16-SSOP). The primary difference is product status: the AM26C31IDBR is in active production while the AM26C31IDBRE4 is discontinued.

Q: What is the difference between the 16-SSOP and 16-TSSOP packages?

A: The 16-SSOP package has a width of 0.209" (5.30mm), while the 16-TSSOP package has a width of 0.173" (4.40mm). The TSSOP variant is narrower and may require PCB layout modifications. Pin pitch and functionality remain compatible for driver applications.

Q: Are both substitute parts ROHS3 compliant?

A: Yes. Both the AM26C31IDBR and ST26C31BTR are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the compliance profile of the original AM26C31IDBRE4.

Q: Which substitute should I select for new designs?

A: For designs prioritizing manufacturer continuity and identical package geometry, select the AM26C31IDBR from Texas Instruments. For designs where package width reduction is beneficial and PCB layout can be adjusted, the ST26C31BTR from STMicroelectronics is a valid alternative.

Q: Do both substitutes support the same supply voltage and temperature range?

A: Yes. Both substitute parts operate within the same supply voltage range (4.5V to 5.5V) and temperature range (-40°C to 85°C) as the original AM26C31IDBRE4.