AM26C31INS Equivalent & Substitute Parts

Part Overview

The AM26C31INS is a 4/0 Driver RS422 interface integrated circuit manufactured by Texas Instruments in a 16-SOIC surface mount package. This component is classified as a Last Time Buy product, indicating discontinued production with limited remaining inventory of 965 pieces. The AM26C31INS operates within a supply voltage range of 4.5V to 5.5V and supports operating temperatures from -40°C to 85°C. Substitute parts are necessary due to the Last Time Buy status and to ensure long-term design continuity and supply chain reliability.

Substiute Parts

AM26C31INS

Texas InstrumentsIn Stock: 1029AM26C31INS Datasheet

Current PartRFQ

AM26C31INSR

Texas InstrumentsIn Stock: 3796AM26C31INSR Datasheet

MFR RecommendedRFQ

DS26C31TM/NOPB

Texas InstrumentsIn Stock: 1540DS26C31TM/NOPB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AM26C31INS are identified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Critical Matching Parameters:

• Number of Drivers/Receivers: 4/0 configuration
• Voltage Supply Range: 4.5V ~ 5.5V
• Operating Temperature Range: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package Type: 16-SOIC
• RoHS Compliance: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute Classification:

MFR Recommended Substitute: AM26C31INSR matches all critical electrical parameters and maintains identical package specifications. This part is in Active product status with higher inventory availability (3740 pieces). The primary difference is packaging format (Cut Tape & Digi-Reel versus standard packaging).

Similar Substitute: DS26C31TM/NOPB is a Texas Instruments alternative with matching electrical specifications (4.5V ~ 5.5V supply, -40°C ~ 85°C operating range, 4/0 driver configuration). This part supports both RS422 and RS485 protocols. The package footprint differs slightly (16-SOIC 0.154" width versus 0.209" width), requiring PCB layout verification.

Parameter Comparison

Engineering Selection Recommendations

For AM26C31INSR Selection: The AM26C31INSR is the primary recommended substitute. This part maintains identical electrical specifications and package dimensions to the AM26C31INS. Both components are ROHS3 compliant with MSL Level 1 rating. The AM26C31INSR is in Active product status, ensuring long-term availability and supply chain continuity. The packaging format difference (Cut Tape & Digi-Reel) does not affect electrical performance or PCB assembly compatibility. This substitute is suitable for direct replacement in existing designs without circuit modification.

For DS26C31TM/NOPB Selection: The DS26C31TM/NOPB is an alternative substitute with identical electrical operating parameters. This part is also in Active product status and ROHS3 compliant. The package width dimension differs (0.154" versus 0.209"), which may require PCB layout verification to confirm footprint compatibility. The DS26C31TM/NOPB supports both RS422 and RS485 protocols, providing additional protocol flexibility compared to the AM26C31INS RS422-only specification. Selection of this part requires confirmation that the narrower package footprint is compatible with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can AM26C31INSR be used as a direct replacement for AM26C31INS?

A: Yes. The AM26C31INSR maintains identical electrical specifications (4.5V ~ 5.5V supply, -40°C ~ 85°C operating range, 4/0 driver configuration) and package dimensions (16-SOIC 0.209" width). Both parts are ROHS3 compliant with MSL Level 1 rating. The packaging format difference does not affect electrical performance or assembly compatibility.

Q: What is the key difference between AM26C31INSR and DS26C31TM/NOPB?

A: Both parts share identical electrical specifications and operating parameters. The primary difference is package width: AM26C31INSR uses 16-SOIC 0.209" width, while DS26C31TM/NOPB uses 16-SOIC 0.154" width. Additionally, DS26C31TM/NOPB supports both RS422 and RS485 protocols, whereas AM26C31INS and AM26C31INSR are specified for RS422 only.

Q: Is PCB layout modification required when substituting DS26C31TM/NOPB?

A: The narrower package width of DS26C31TM/NOPB (0.154" versus 0.209") requires verification of PCB footprint compatibility. Confirm that the existing PCB layout accommodates the narrower package dimensions before implementation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. AM26C31INSR and DS26C31TM/NOPB are both ROHS3 compliant with MSL Level 1 rating, matching the compliance status of the AM26C31INS.

Q: Why is AM26C31INS classified as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this part number. Existing inventory is limited to 965 pieces. Substitute parts in Active status (AM26C31INSR and DS26C31TM/NOPB) ensure continued availability for future production requirements.

Q: What is the inventory advantage of selecting AM26C31INSR?

A: AM26C31INSR has significantly higher inventory availability (3740 pieces) compared to AM26C31INS (965 pieces), providing improved supply chain security and shorter lead times for procurement.