AM26C31CNS Equivalent & Substitute Parts

Part Overview

The AM26C31CNS is a 4/0 driver interface IC manufactured by Texas Instruments in a 16-SO surface mount package. This component is classified as a half-duplex driver operating at 10 Mbps with a supply voltage range of 4.5V to 5.5V and an operating temperature range of 0°C to 70°C. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain flexibility for applications requiring this driver functionality.

Substiute Parts

AM26C31CNS

Texas InstrumentsIn Stock: 2436AM26C31CNS Datasheet

Current PartRFQ

AM26C31CNSR

Texas InstrumentsIn Stock: 5256AM26C31CNSR Datasheet

MFR RecommendedRFQ

DS26C31TM/NOPB

Texas InstrumentsIn Stock: 1540DS26C31TM/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM26C31CNS is determined by the following critical parameters:

• Driver Configuration: 4/0 (4 drivers, 0 receivers)
• Package Type: 16-SO surface mount package
• Supply Voltage: 4.5V ~ 5.5V compatibility
• Base Product Series: AM26C31 or equivalent functional family
• Compliance: ROHS3 compliant, MSL Level 1

The substitute parts identified maintain the core 4/0 driver functionality and 16-SO package footprint. Variations in operating temperature range, data rate specification, and protocol designation do not preclude substitution when the primary electrical and mechanical parameters align.

Parameter Comparison

Engineering Selection Recommendations

AM26C31CNSR is the primary substitute for AM26C31CNS. Both parts share identical electrical specifications, package dimensions, and compliance certifications. The AM26C31CNSR maintains Active product status, ensuring continued availability and supply chain support. The packaging format differs (Cut Tape & Digi-Reel versus Tube), which may affect procurement and handling but does not impact functional compatibility.

DS26C31TM/NOPB is a secondary substitute option. This part maintains the 4/0 driver configuration and 4.5V to 5.5V supply voltage requirement. The extended operating temperature range (-40°C to 85°C) provides broader environmental capability. The package case dimensions differ (0.154" versus 0.209" width), requiring PCB layout verification before implementation. This part is suitable for applications where the extended temperature range provides operational advantage.

Both substitute parts carry ROHS3 compliance and MSL Level 1 ratings, meeting the same regulatory and environmental requirements as the original part.

Frequently Asked Questions (FAQ)

Q: Can AM26C31CNSR be used as a direct replacement for AM26C31CNS?

A: Yes. Both parts are 4/0 drivers in 16-SOIC packages with identical supply voltage specifications (4.5V ~ 5.5V) and operating temperature ranges (0°C ~ 70°C). The primary difference is packaging format and product status. AM26C31CNSR is in Active status, ensuring continued availability.

Q: What is the difference between the 16-SOIC package dimensions listed for these parts?

A: AM26C31CNS and AM26C31CNSR use 16-SOIC packages with 0.209" width (5.30mm). DS26C31TM/NOPB uses a 16-SOIC package with 0.154" width (3.90mm). These are different package variants. PCB footprint compatibility must be verified before substitution.

Q: Does the extended temperature range of DS26C31TM/NOPB affect substitution suitability?

A: The DS26C31TM/NOPB operates from -40°C to 85°C, compared to 0°C to 70°C for the AM26C31CNS. The extended range does not prevent substitution for applications operating within the original 0°C to 70°C specification. Applications requiring the full -40°C to 85°C range benefit from this part's broader capability.

Q: Are all three parts ROHS3 compliant?

A: Yes. AM26C31CNS, AM26C31CNSR, and DS26C31TM/NOPB are all ROHS3 compliant with MSL Level 1 ratings, meeting identical regulatory requirements.

Q: Why is AM26C31CNS in Last Time Buy status?

A: Last Time Buy status indicates the manufacturer is discontinuing production. AM26C31CNSR and DS26C31TM/NOPB are Active products and represent the recommended long-term supply alternatives.