DS26LS31CN/NOPB Equivalent & Substitute Parts

Part Overview

The DS26LS31CN/NOPB is a 4/0 Driver RS422/RS485 interface IC manufactured by Texas Instruments in a 16-DIP package. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The obsolete status necessitates sourcing alternative components that maintain functional and electrical compatibility with existing applications.

Substiute Parts

DS26LS31CN/NOPB

Texas InstrumentsIn Stock: 1745DS26LS31CN/NOPB Datasheet

Current PartRFQ

AM26LS31CN

Texas InstrumentsIn Stock: 3604AM26LS31CN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS26LS31CN/NOPB is determined by strict equivalence across the following critical parameters:

• Protocol compatibility: RS422/RS485 interface standards
• Driver/receiver configuration: 4/0 (4 drivers, 0 receivers)
• Package type: 16-DIP (0.300", 7.62mm) through-hole mounting
• Supply voltage range: Compatible operating range
• Operating temperature range: 0°C ~ 70°C minimum
• Regulatory compliance: ROHS3 and REACH status

The AM26LS31CN meets all substitution criteria as a manufacturer-recommended alternative from Texas Instruments with active product status, identical functional configuration, and compatible electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

The AM26LS31CN is the designated manufacturer-recommended substitute for the obsolete DS26LS31CN/NOPB. Both components are manufactured by Texas Instruments and maintain identical functional specifications for RS422/RS485 driver applications with 4/0 configuration in 16-DIP packaging.

The AM26LS31CN offers the advantage of active product status, ensuring continued availability and manufacturing support. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and legacy system replacements.

The supply voltage range of the AM26LS31CN (4.75V ~ 5.25V) is narrower than the DS26LS31CN/NOPB (4.5V ~ 5.5V). Applications operating at the extremes of the original specification range (below 4.75V or above 5.25V) require circuit design verification before substitution.

Frequently Asked Questions (FAQ)

Q: Can the AM26LS31CN directly replace the DS26LS31CN/NOPB in existing designs?

A: Yes. Both components share identical protocol support (RS422/RS485), driver/receiver configuration (4/0), and 16-DIP package dimensions. Pin-for-pin compatibility is maintained for through-hole mounting applications.

Q: What is the primary difference between these two parts?

A: The DS26LS31CN/NOPB is obsolete, while the AM26LS31CN maintains active product status. The AM26LS31CN has a narrower supply voltage specification (4.75V ~ 5.25V versus 4.5V ~ 5.5V).

Q: Are there packaging differences between these parts?

A: Both components use identical 16-DIP (0.300", 7.62mm) through-hole packaging. The AM26LS31CN is supplied in tube packaging, while the DS26LS31CN/NOPB packaging type is not specified.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the DS26LS31CN/NOPB and AM26LS31CN are ROHS3 compliant and REACH unaffected, satisfying current environmental and regulatory standards.

Q: What supply voltage range should be used for the AM26LS31CN?

A: The AM26LS31CN operates within 4.75V ~ 5.25V. Designs using the original DS26LS31CN/NOPB at voltages below 4.75V or above 5.25V require circuit verification before substitution.