AM26LS31PC Equivalent & Substitute Parts

Part Overview

The AM26LS31PC is a 4/0 Driver IC for RS422 and RS485 interface applications, manufactured by Texas Instruments in a 16-DIP package. This part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. The functional role of this driver—managing four output channels with no receiver channels—remains consistent across qualified substitute parts, provided electrical and mechanical parameters align within specified tolerances.

Substiute Parts

AM26LS31PC

Texas InstrumentsIn Stock: 2227AM26LS31PC Datasheet

Current PartRFQ

LTC486CN#PBF

Analog Devices Inc.In Stock: 1299LTC486CN#PBF Datasheet

MFR RecommendedRFQ

SN75ALS192N

Texas InstrumentsIn Stock: 3333SN75ALS192N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM26LS31PC is determined by strict equivalence across the following parameters:

• Protocol Support: RS422 and RS485 compatibility required
• Driver/Receiver Count: 4/0 configuration mandatory
• Supply Voltage: 4.75V ~ 5.25V range required
• Operating Temperature: 0°C ~ 70°C range required
• Package: 16-DIP form factor and 16-PDIP supplier package required
• Mounting: Through-hole technology required

All qualified substitutes maintain identical electrical specifications and physical packaging, ensuring direct functional replacement without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

LTC486CN#PBF is the primary substitute for new designs. This part is manufactured by Analog Devices Inc. and maintains active product status with ROHS3 compliance. The LTC486CN#PBF provides equivalent electrical performance and identical packaging, with the additional advantage of current availability and regulatory compliance for modern applications.

SN75ALS192N serves as an alternative substitute, also manufactured by Texas Instruments. While this part achieves ROHS3 compliance, it carries obsolete product status. Selection of this part is appropriate only when supply chain constraints or design continuity requirements necessitate a Texas Instruments source.

For applications requiring new component procurement, LTC486CN#PBF is the recommended selection due to active product status and compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can AM26LS31PC be directly replaced with LTC486CN#PBF without circuit modification?

A: Yes. Both parts share identical electrical specifications (4.75V ~ 5.25V supply, 0°C ~ 70°C operating range, 4/0 driver/receiver configuration) and identical 16-DIP package geometry. Direct pin-for-pin substitution is supported.

Q: What is the difference between AM26LS31PC and SN75ALS192N?

A: Both parts meet the same electrical and mechanical requirements. The primary difference is product status: AM26LS31PC is obsolete, while SN75ALS192N is also obsolete but remains available from inventory. Both are RoHS3 compliant alternatives to the original non-compliant AM26LS31PC.

Q: Why is LTC486CN#PBF recommended over SN75ALS192N?

A: LTC486CN#PBF maintains active product status, ensuring long-term availability and continued manufacturer support. SN75ALS192N, while functionally equivalent, carries obsolete designation. For new designs, active-status components reduce supply chain risk.

Q: Are there any package or pinout differences between these substitutes?

A: No. All three parts use the 16-DIP (0.300", 7.62mm) package with identical pinout. Through-hole mounting is consistent across all variants.

Q: Does RoHS compliance affect functional compatibility?

A: No. RoHS compliance relates to material composition and environmental standards, not electrical function. Both RoHS-compliant and non-compliant variants perform identically within specified electrical parameters.