AM26C32CDE4 Equivalent & Substitute Parts

Part Overview

The AM26C32CDE4 is a quad receiver interface IC manufactured by Texas Instruments, designed for RS422 and RS423 serial communication protocols. This component operates within a 4.5V to 5.5V supply range and features a 60 mV receiver hysteresis specification, housed in a 16-SOIC surface mount package.

The AM26C32CDE4 carries a Last Time Buy product status, indicating that Texas Instruments has discontinued active production. This status necessitates identification of equivalent substitute parts to ensure design continuity and procurement availability for new builds and ongoing production requirements.

Substiute Parts

AM26C32CDE4

Texas InstrumentsIn Stock: 1070AM26C32CDE4 Datasheet

Current PartRFQ

AM26C32CD

Texas InstrumentsIn Stock: 3079AM26C32CD Datasheet

MFR RecommendedRFQ

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 AM26C32CDE4 is determined by the following critical parameters:

Primary Substitution Criteria:

• Protocol support (RS422, RS423 minimum requirement)
• Number of receivers (4 receivers required)
• Receiver hysteresis (60 mV specification)
• Package type (16-SOIC form factor)
• Supply voltage compatibility (4.5V ~ 5.5V operation)
• RoHS3 compliance
• Surface mount mounting type

Substitution Groups:

Group 1: Texas Instruments AM26C32 Series (Direct Functional Equivalents) Parts AM26C32CD, AM26C32IDR, DS26C32ATM/NOPB, and DS26C32ATMX/NOPB share identical electrical specifications with the AM26C32CDE4. These parts maintain the same protocol support, receiver count, hysteresis, and package configuration. Differences exist only in product status (Active vs. Last Time Buy), operating temperature range extensions, and packaging format (Tube vs. Cut Tape).

Group 2: Alternative Manufacturer (Limited Compatibility) The SP26LV432CN-L from MaxLinear, Inc. provides RS422/RS485 protocol support with identical receiver count and hysteresis. However, this part operates at 3.3V supply voltage rather than 4.5V ~ 5.5V, and specifies a 50 Mbps data rate not present in the original specification. This part is suitable only for designs with 3.3V power architecture.

Group 3: STMicroelectronics Alternative The ST26C32ABDR from STMicroelectronics maintains RS422/RS423 protocol support, 4 receivers, 60 mV hysteresis, and 16-SOIC packaging. This part specifies a 20 Mbps data rate and extended operating temperature range (-40°C ~ 85°C), providing broader environmental operation than the original part.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: AM26C32IDR or DS26C32ATMX/NOPB

Both parts are manufactured by Texas Instruments with Active product status, ensuring long-term availability and supply chain stability. AM26C32IDR offers the highest inventory level (22,800 pcs) with Cut Tape and Digi-Reel packaging options suitable for high-volume production. DS26C32ATMX/NOPB provides equivalent specifications with comparable inventory (22,854 pcs) and identical Active status. Both parts extend the operating temperature range to -40°C ~ 85°C, providing enhanced environmental performance beyond the original AM26C32CDE4 specification.

Secondary Recommendation: ST26C32ABDR

The STMicroelectronics ST26C32ABDR provides full electrical equivalence with the highest available inventory (87,600 pcs), ensuring procurement availability. This part maintains identical protocol support, receiver configuration, and supply voltage specifications. The extended temperature range (-40°C ~ 85°C) and 20 Mbps data rate specification provide additional operational margin for demanding applications.

Alternative for 3.3V Systems: SP26LV432CN-L

The MaxLinear SP26LV432CN-L is suitable only for designs operating at 3.3V supply voltage. This part is not recommended as a direct substitute for 5V systems due to voltage incompatibility, despite maintaining identical receiver count and hysteresis specifications.

Frequently Asked Questions (FAQ)

Q: Can AM26C32IDR be used as a direct replacement for AM26C32CDE4?

A: Yes. Both parts maintain identical electrical specifications including RS422/RS423 protocol support, 4 receivers, 60 mV hysteresis, 4.5V ~ 5.5V supply voltage, and 16-SOIC packaging. AM26C32IDR offers Active product status and extended operating temperature range (-40°C ~ 85°C vs. 0°C ~ 70°C), making it a functionally superior substitute.

Q: What is the difference between AM26C32CD and AM26C32IDR?

A: Both parts are Texas Instruments AM26C32 series with identical electrical specifications. The primary differences are: AM26C32CD carries Last Time Buy status with Tube packaging, while AM26C32IDR has Active status with Cut Tape and Digi-Reel packaging options. AM26C32IDR is preferred for new designs due to its Active product status and higher inventory availability.

Q: Is SP26LV432CN-L compatible with a 5V system?

A: No. The SP26LV432CN-L operates at 3.3V supply voltage and is not compatible with systems designed for 4.5V ~ 5.5V operation. This part is suitable only for 3.3V power architectures.

Q: What packaging options are available for substitute parts?

A: Substitute parts are available in two packaging formats: Tube (standard packaging for lower-volume applications) and Cut Tape with Digi-Reel (suitable for automated assembly and high-volume production). AM26C32IDR and DS26C32ATMX/NOPB offer Cut Tape packaging, while AM26C32CD, DS26C32ATM/NOPB, SP26LV432CN-L, and ST26C32ABDR are available in Tube format.

Q: Does the extended temperature range of AM26C32IDR affect circuit design?

A: No. The extended operating temperature range (-40°C ~ 85°C) of AM26C32IDR is a superset of the original AM26C32CDE4 specification (0°C ~ 70°C). This provides enhanced environmental performance without requiring design modifications. All other electrical parameters remain identical.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain RoHS3 compliance, matching the environmental and regulatory status of the original AM26C32CDE4.