AM26C31CDBR Equivalent & Substitute Parts

Part Overview

The AM26C31CDBR is a 4/0 driver interface IC manufactured by Texas Instruments in a 16-SSOP surface mount package. This component is classified as a Last Time Buy product, indicating discontinued production with limited remaining inventory of 3,798 pieces. The part operates within a supply voltage range of 4.5V to 5.5V and is rated for 0°C to 70°C operating temperature. Due to its Last Time Buy status, identifying functionally equivalent substitute parts is essential for long-term design continuity and procurement planning.

Substiute Parts

AM26C31CDBR

Texas InstrumentsIn Stock: 3811AM26C31CDBR Datasheet

Current PartRFQ

AM26C31IDBR

Texas InstrumentsIn Stock: 2382AM26C31IDBR Datasheet

MFR RecommendedRFQ

ST26C31BTR

STMicroelectronicsIn Stock: 1499ST26C31BTR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM26C31CDBR is determined by the following critical parameters:

Core Functional Requirements:

• Number of Drivers/Receivers: 4/0 configuration
• Voltage Supply Range: 4.5V ~ 5.5V compatibility
• Mounting Type: Surface Mount
• Category: Interface Driver

Compliance & Environmental:

• RoHS3 Compliance
• MSL Rating: 1 (Unlimited)
• REACH Status: REACH Unaffected

Package Considerations:

• Primary package: 16-SSOP (0.209", 5.30mm Width)
• Alternative package: 16-TSSOP (0.173", 4.40mm Width) with PCB layout verification

The identified substitute parts maintain functional equivalence through matching driver/receiver configuration, supply voltage range, and compliance certifications. Package variations require design review for PCB footprint compatibility.

Parameter Comparison

Engineering Selection Recommendations

AM26C31IDBR (Texas Instruments): This part is the direct functional equivalent with identical package footprint (16-SSOP). The extended operating temperature range (-40°C to 85°C) provides broader environmental coverage compared to the AM26C31CDBR. Active product status ensures long-term availability. This substitute is recommended for applications requiring direct PCB compatibility without layout modifications. Current inventory: 2,320 pieces.

ST26C31BTR (STMicroelectronics): This part maintains functional equivalence with matching 4/0 driver configuration and supply voltage range. The package differs (16-TSSOP vs. 16-SSOP), requiring PCB footprint verification and potential layout redesign. Extended operating temperature range (-40°C to 85°C) and active product status support long-term procurement. This substitute is suitable for designs where package footprint modification is feasible. Current inventory: 1,444 pieces.

Both substitutes maintain ROHS3 compliance and MSL 1 ratings, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can AM26C31IDBR replace AM26C31CDBR without PCB modifications? A: Yes. Both parts use identical 16-SSOP packaging (0.209", 5.30mm Width), enabling direct footprint substitution without PCB layout changes.

Q: What is the primary difference between AM26C31CDBR and AM26C31IDBR? A: The operating temperature range differs. AM26C31CDBR operates 0°C to 70°C, while AM26C31IDBR operates -40°C to 85°C. Both maintain identical supply voltage (4.5V ~ 5.5V) and driver configuration (4/0).

Q: Can ST26C31BTR be used as a direct replacement? A: Functional substitution is possible, but package differences require design review. ST26C31BTR uses 16-TSSOP (0.173", 4.40mm Width) versus the original 16-SSOP (0.209", 5.30mm Width). PCB footprint compatibility must be verified before implementation.

Q: Are all three parts RoHS3 compliant? A: Yes. AM26C31CDBR, AM26C31IDBR, and ST26C31BTR are all ROHS3 compliant with MSL 1 (Unlimited) ratings.

Q: Which substitute offers the best long-term availability? A: Both AM26C31IDBR and ST26C31BTR carry Active product status, ensuring continued manufacturing and supply. AM26C31CDBR is Last Time Buy with limited inventory.

Q: Do the substitutes support the same supply voltage range? A: Yes. All three parts operate within 4.5V to 5.5V supply voltage range, ensuring direct electrical compatibility in existing circuit designs.