AM26C32CD Equivalent & Substitute Parts

Part Overview

The AM26C32CD is a 0/4 Receiver RS422/RS423 interface IC manufactured by Texas Instruments in a 16-SOIC package. This component is classified as Last Time Buy, indicating limited availability and the necessity to identify compatible alternatives for ongoing design requirements and production planning. The AM26C32CD operates within a 4.5V to 5.5V supply range with a 60 mV receiver hysteresis specification, designed for surface mount applications in industrial and commercial communication systems.

Substiute Parts

AM26C32CD

Texas InstrumentsIn Stock: 3079AM26C32CD Datasheet

Current PartRFQ

AM26C32IDR

Texas InstrumentsIn Stock: 22842AM26C32IDR Datasheet

MFR RecommendedRFQ

DS26C32ATM/NOPB

Texas InstrumentsIn Stock: 1330DS26C32ATM/NOPB Datasheet

MFR RecommendedRFQ

DS26C32ATMX/NOPB

Texas InstrumentsIn Stock: 22903DS26C32ATMX/NOPB Datasheet

MFR RecommendedRFQ

SP26LV432CN-L

MaxLinear, Inc.In Stock: 2877SP26LV432CN-L Datasheet

MFR RecommendedRFQ

ST26C32ABDR

STMicroelectronicsIn Stock: 87612ST26C32ABDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM26C32CD is determined by the following critical parameters:

Primary Compatibility Criteria:

• Protocol support: RS422 and/or RS423
• Receiver configuration: 0/4 (4 receivers, 0 drivers)
• Receiver hysteresis: 60 mV
• Package type: 16-SOIC form factor
• Supply voltage range: 4.5V ~ 5.5V or compatible range
• Mounting type: Surface Mount

Substitution Logic: Parts are classified as direct substitutes when they maintain identical receiver hysteresis, protocol support, driver/receiver count, and package specifications. Extended operating temperature ranges (-40°C to 85°C) represent an enhancement over the base specification and do not preclude substitution. Packaging format variations (Tube vs. Cut Tape) are logistical considerations and do not affect electrical compatibility. Parts with different supply voltage requirements, protocol deviations, or package incompatibilities are excluded from direct substitution.

Parameter Comparison

Engineering Selection Recommendations

Tier 1 - Direct Substitutes (Texas Instruments): AM26C32IDR, DS26C32ATM/NOPB, and DS26C32ATMX/NOPB are direct electrical equivalents manufactured by Texas Instruments. These parts maintain identical protocol support, receiver configuration, hysteresis specification, and supply voltage requirements. All three are classified as Active products with extended operating temperature ranges (-40°C to 85°C), providing enhanced thermal performance compared to the AM26C32CD. These parts are recommended for new designs and production continuity.

Tier 2 - Compatible Substitute (STMicroelectronics): ST26C32ABDR is manufactured by STMicroelectronics and maintains electrical compatibility across all critical parameters: RS422/RS423 protocol support, 0/4 receiver configuration, 60 mV hysteresis, 4.5V to 5.5V supply range, and 16-SOIC package. The ST26C32ABDR is classified as Active with extended operating temperature range (-40°C to 85°C). Data rate specification (20 Mbps) is provided for this part but not specified for the AM26C32CD, representing an additional performance characteristic.

Tier 3 - Conditional Substitute (MaxLinear): SP26LV432CN-L is manufactured by MaxLinear, Inc. and presents a conditional substitution path. This part maintains the 0/4 receiver configuration, 60 mV hysteresis, and 16-SOIC package. However, the supply voltage requirement differs (3.3V vs. 4.5V ~ 5.5V), requiring circuit-level voltage compatibility verification. The SP26LV432CN-L supports RS422 and RS485 protocols, with RS485 capability providing extended functionality. This part is classified as Last Time Buy, similar to the AM26C32CD. Data rate specification (50 Mbps) exceeds the AM26C32CD baseline.

Compliance and Availability: All substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the AM26C32CD. Inventory availability varies: AM26C32IDR (22,800 pcs), DS26C32ATMX/NOPB (22,854 pcs), and ST26C32ABDR (87,600 pcs) offer substantial stock levels for production requirements.

Frequently Asked Questions (FAQ)

Q: Can AM26C32IDR replace AM26C32CD in existing designs? A: Yes. AM26C32IDR is a direct electrical equivalent with identical protocol support (RS422/RS423), receiver configuration (0/4), hysteresis (60 mV), and supply voltage range (4.5V ~ 5.5V). The extended operating temperature range (-40°C to 85°C) represents an enhancement. Packaging format differs (Cut Tape vs. Tube), which is a procurement consideration only.

Q: What is the difference between DS26C32ATM/NOPB and DS26C32ATMX/NOPB? A: Both parts are electrically identical with respect to protocol, receiver configuration, hysteresis, and supply voltage. The primary difference is packaging format: DS26C32ATM/NOPB is supplied in Tube, while DS26C32ATMX/NOPB is supplied in Cut Tape (CT) & Digi-Reel format. Selection depends on production assembly requirements and inventory management practices.

Q: Is SP26LV432CN-L a direct substitute for AM26C32CD? A: SP26LV432CN-L is not a direct substitute due to supply voltage incompatibility (3.3V vs. 4.5V ~ 5.5V). Substitution requires circuit-level verification to confirm voltage compatibility. The part offers RS485 protocol support in addition to RS422, and higher data rate capability (50 Mbps). Both parts share Last Time Buy status.

Q: Why does ST26C32ABDR have a different package designation (16-SO vs. 16-SOIC)? A: Both designations refer to the same 16-pin small outline package with 0.154" width and 3.90mm body width. The terminology variation reflects manufacturer nomenclature differences. Electrical and mechanical compatibility is maintained.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed (AM26C32IDR, DS26C32ATM/NOPB, DS26C32ATMX/NOPB, SP26LV432CN-L, and ST26C32ABDR) are ROHS3 compliant and REACH unaffected, consistent with the AM26C32CD.

Q: What is the significance of Moisture Sensitivity Level (MSL) differences? A: The AM26C32CD, AM26C32IDR, DS26C32ATM/NOPB, DS26C32ATMX/NOPB, and ST26C32ABDR are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. SP26LV432CN-L is rated MSL 2 (1 Year), requiring controlled storage and handling within one year of manufacture. This affects supply chain management and storage protocols.