AM26LS32CN Equivalent & Substitute Parts

Part Overview

The AM26LS32CN is a 0/4 Receiver IC for RS422 and RS423 serial communication protocols, manufactured by Texas Instruments in a 16-DIP through-hole package. This component is classified as obsolete, which necessitates identification of active equivalent parts to maintain system continuity and support ongoing production requirements. The receiver features 100 mV hysteresis and operates within a 4.75V to 5.25V supply voltage range across a 0°C to 70°C temperature window.

Substiute Parts

AM26LS32CN

Texas InstrumentsIn Stock: 3253AM26LS32CN Datasheet

Current PartRFQ

SN75ALS193N

Texas InstrumentsIn Stock: 9892SN75ALS193N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AM26LS32CN is determined by strict equivalence across the following critical parameters:

• Protocol Compatibility: Both main and substitute parts must support RS422 and RS423 serial communication standards
• Functional Configuration: 0/4 receiver architecture (4 receiver channels, 0 driver channels) must be maintained
• Electrical Specifications: Supply voltage range (4.75V ~ 5.25V) and operating temperature range (0°C ~ 70°C) must be compatible
• Physical Package: 16-DIP through-hole package with 0.300" (7.62mm) pitch is required for PCB compatibility
• Receiver Hysteresis: Acceptable variance within standard RS422/RS423 receiver specifications

The SN75ALS193N meets all substitution criteria as an active product from the same manufacturer with identical functional configuration, package form factor, and electrical operating parameters.

Parameter Comparison

Engineering Selection Recommendations

The SN75ALS193N is the direct functional equivalent to the AM26LS32CN. Selection of the SN75ALS193N provides the following advantages:

• Product Status: Active product with ongoing manufacturer support and availability, eliminating obsolescence risk
• Regulatory Compliance: ROHS3 compliant, meeting current environmental and hazardous substance restrictions
• Electrical Compatibility: Identical supply voltage and operating temperature specifications ensure drop-in replacement capability
• Package Equivalence: Identical 16-DIP through-hole package enables direct PCB substitution without layout modifications
• Receiver Hysteresis: The 120 mV hysteresis specification of the SN75ALS193N remains within acceptable RS422/RS423 receiver operating parameters

Frequently Asked Questions (FAQ)

Q: Can the SN75ALS193N be used as a direct replacement for the AM26LS32CN?

A: Yes. The SN75ALS193N is functionally equivalent across all critical parameters: protocol support (RS422/RS423), receiver configuration (0/4), supply voltage (4.75V ~ 5.25V), operating temperature (0°C ~ 70°C), and package form factor (16-DIP). No circuit modifications are required.

Q: What is the difference in receiver hysteresis between these parts?

A: The AM26LS32CN specifies 100 mV hysteresis while the SN75ALS193N specifies 120 mV hysteresis. Both values are within standard RS422/RS423 receiver specifications and do not affect functional compatibility in typical applications.

Q: Are there any compliance differences between these parts?

A: The AM26LS32CN is RoHS non-compliant, while the SN75ALS193N is ROHS3 compliant. If your application or supply chain requires RoHS compliance, the SN75ALS193N is the appropriate selection.

Q: Will the SN75ALS193N fit the existing PCB layout designed for the AM26LS32CN?

A: Yes. Both parts use identical 16-DIP through-hole packaging with 0.300" (7.62mm) pitch. No PCB modifications are necessary for physical installation.

Q: Why is the AM26LS32CN classified as obsolete?

A: The AM26LS32CN has reached end-of-life status with Texas Instruments. The SN75ALS193N represents the active product line continuation for this functional category.