AM26C31IPWR-NM Equivalent & Substitute Parts

Part Overview

The AM26C31IPWR-NM is a 4/0 Driver RS422 interface IC manufactured by Texas Instruments in a 16-TSSOP surface mount package. This component is classified as obsolete, indicating discontinuation from active production. The part operates within a 4.5V to 5.5V supply voltage range and supports data rates up to 10 Mbps, making it suitable for RS422 serial communication applications requiring four driver channels and no receiver channels.

Due to its obsolete status, locating replacement units from original inventory becomes increasingly difficult. Identifying equivalent substitute parts with matching electrical and mechanical specifications is essential for system maintenance, repair, and redesign efforts.

Substiute Parts

AM26C31IPWR-NM

Texas InstrumentsIn Stock: 1056AM26C31IPWR-NM Datasheet

Current PartRFQ

AM26C31IPWR

Texas InstrumentsIn Stock: 5467AM26C31IPWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AM26C31IPWR-NM is determined by strict equivalence across the following critical parameters:

Electrical Compatibility:

• Driver/Receiver configuration: 4/0 (four drivers, zero receivers)
• Supply voltage range: 4.5V ~ 5.5V
• Operating temperature range: -40°C ~ 85°C
• Protocol: RS422

Mechanical Compatibility:

• Package type: 16-TSSOP
• Physical dimensions: 0.173" width, 4.40mm width
• Mounting type: Surface Mount

Regulatory & Environmental:

• RoHS3 Compliance
• Moisture Sensitivity Level: 1 (Unlimited)

The AM26C31IPWR qualifies as a direct substitute based on matching all electrical and mechanical parameters. The primary distinction is product status: AM26C31IPWR-NM is obsolete, while AM26C31IPWR maintains active production status.

Parameter Comparison

Engineering Selection Recommendations

The AM26C31IPWR serves as the direct functional equivalent for the obsolete AM26C31IPWR-NM. Both components share identical electrical specifications, package geometry, and regulatory compliance certifications.

Selection Basis:

The AM26C31IPWR is the appropriate substitute due to:

1. Active Product Status: AM26C31IPWR maintains active production status with Texas Instruments, ensuring continued availability and supply chain reliability.

2. Regulatory Compliance: Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, satisfying environmental and manufacturing requirements.

3. Electrical & Mechanical Equivalence: Matching supply voltage (4.5V ~ 5.5V), operating temperature range (-40°C ~ 85°C), driver configuration (4/0), and 16-TSSOP package ensure direct pin-for-pin and functional compatibility.

4. Inventory Availability: The substitute part demonstrates significantly higher inventory levels (5400 Pcs vs. 1039 Pcs), supporting procurement reliability.

For applications currently using AM26C31IPWR-NM, transition to AM26C31IPWR requires no circuit modifications, PCB redesign, or firmware changes.

Frequently Asked Questions (FAQ)

Q: Can AM26C31IPWR directly replace AM26C31IPWR-NM in existing designs?

A: Yes. Both parts are electrically and mechanically identical. Pin configuration, signal levels, timing characteristics, and package footprint are equivalent. No circuit modifications are required.

Q: What is the significance of the "-NM" suffix in AM26C31IPWR-NM?

A: The "-NM" designation indicates a specific product variant or manufacturing code assigned by Texas Instruments. The base part number AM26C31IPWR represents the active production equivalent without this suffix.

Q: Are there any compliance differences between the two parts?

A: No. Both parts maintain identical RoHS3 compliance status, moisture sensitivity level (MSL 1), and environmental certifications. No additional qualification or testing is required for substitution.

Q: What packaging options are available for AM26C31IPWR?

A: The substitute part is available in Cut Tape (CT) and Digi-Reel® packaging formats, both maintaining the 16-TSSOP surface mount package specification.

Q: Is the 10 Mbps data rate specification maintained in the substitute part?

A: Yes. The AM26C31IPWR supports the same 10 Mbps data rate as the obsolete AM26C31IPWR-NM, ensuring equivalent performance in RS422 communication applications.

Q: What is the base product number for these parts?

A: The base product number is AM26C31. Both AM26C31IPWR-NM and AM26C31IPWR are variants of this base product line.

Q: Are there any temperature or voltage derating considerations for the substitute?

A: Both parts operate identically across the -40°C to 85°C temperature range and 4.5V to 5.5V supply voltage range. No derating adjustments are necessary.