AM26LS32ACDBR Equivalent & Substitute Parts

Part Overview

The AM26LS32ACDBR is a 0/4 Receiver IC for RS422 and RS485 serial communication interfaces, manufactured by Texas Instruments in a 16-SSOP surface mount package. This component is classified as Obsolete, indicating it has been discontinued from active production. Due to its obsolete status and limited inventory availability (1018 pieces), identifying functionally equivalent substitute parts is essential for ongoing system maintenance, redesign efforts, and long-term supply chain planning.

Substiute Parts

AM26LS32ACDBR

Texas InstrumentsIn Stock: 1060AM26LS32ACDBR Datasheet

Current PartRFQ

AM26LS32ACDR

Texas InstrumentsIn Stock: 38721AM26LS32ACDR Datasheet

MFR RecommendedRFQ

AM26LS32ACDBR

Texas InstrumentsIn Stock: 1060AM26LS32ACDBR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AM26LS32ACDBR is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Receiver configuration: 0/4 (four receivers, no drivers)
• Protocol support: RS422 and/or RS485 compatibility
• Receiver hysteresis: 50 mV
• Supply voltage range: 4.75V ~ 5.25V
• Operating temperature range: 0°C ~ 70°C

Mechanical Equivalence Criteria:

• Surface mount technology
• Pin count and signal compatibility
• Package footprint compatibility

Compliance Criteria:

• RoHS3 compliance
• Moisture sensitivity level: 1 (Unlimited)

The AM26LS32ACDR qualifies as a manufacturer-recommended substitute based on identical electrical parameters and compliance certifications. The primary difference is the package type (16-SOIC versus 16-SSOP), which affects PCB layout and assembly considerations but does not alter electrical functionality or performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Part Replacement:

The AM26LS32ACDR is the manufacturer-recommended substitute for the AM26LS32ACDBR. Both components share identical electrical specifications, including receiver configuration, hysteresis characteristics, supply voltage range, and operating temperature limits. Both are RoHS3 compliant with unlimited moisture sensitivity classification.

Product Status Consideration:

The AM26LS32ACDBR is classified as Obsolete with limited inventory (1018 pieces). The AM26LS32ACDR maintains Active product status with significantly higher availability (38682 pieces), ensuring long-term supply chain continuity and support from the manufacturer.

Package Transition:

The primary design consideration is the package change from 16-SSOP to 16-SOIC. The 16-SOIC package is narrower (3.90mm versus 5.30mm width) and requires PCB layout modification. Pin assignments and signal functionality remain identical, allowing direct functional substitution with appropriate board redesign.

Compliance and Certification:

Both parts maintain equivalent RoHS3 compliance and moisture sensitivity ratings, ensuring regulatory and environmental compliance requirements are preserved during substitution.

Frequently Asked Questions (FAQ)

Q: Can the AM26LS32ACDR directly replace the AM26LS32ACDBR without circuit modification?

A: Electrical functionality is identical. Pin assignments and signal characteristics are equivalent. PCB layout modification is required due to package geometry differences (16-SSOP to 16-SOIC). No circuit schematic changes are necessary.

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

A: The AM26LS32ACDBR uses a 16-SSOP package (0.209" width), while the AM26LS32ACDR uses a 16-SOIC package (0.154" width). Electrical performance, receiver configuration, and protocol support are identical.

Q: Why is the AM26LS32ACDBR classified as Obsolete?

A: Texas Instruments has discontinued production of this part number. The AM26LS32ACDR represents the active product line continuation with equivalent functionality.

Q: Are there any protocol differences between these parts?

A: The AM26LS32ACDBR supports RS422 and RS485 protocols. The AM26LS32ACDR supports RS422 and RS423 protocols. Both support RS422, which is the common protocol for these receiver configurations.

Q: What are the inventory implications?

A: The AM26LS32ACDBR has 1018 pieces available. The AM26LS32ACDR has 38682 pieces in stock, providing substantially greater availability for new designs and ongoing production requirements.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the AM26LS32ACDBR and AM26LS32ACDR are RoHS3 compliant with unlimited moisture sensitivity level (MSL 1), meeting current environmental and regulatory standards.

Q: Can I use the AM26LS32ACDR in existing designs without redesign?

A: Electrical substitution is direct. Physical PCB layout must be modified to accommodate the different package footprint. No schematic changes are required.