ISL32272EIBZ Equivalent & Substitute Parts

Part Overview

The ISL32272EIBZ is a 4/0 Driver RS422/RS485 interface IC manufactured by Renesas Electronics Corporation in a 16-SOIC package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The ISL32272EIBZ operates across a 3V to 5.5V supply range with a 10Mbps data rate, suitable for industrial and commercial RS422/RS485 communication applications.

Substiute Parts

ISL32272EIBZ

Renesas Electronics CorporationIn Stock: 1022ISL32272EIBZ Datasheet

Current PartRFQ

DS26C31TM/NOPB

Texas InstrumentsIn Stock: 1540DS26C31TM/NOPB Datasheet

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DS26C31TMX/NOPB

Texas InstrumentsIn Stock: 20390DS26C31TMX/NOPB Datasheet

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SN75ALS192D

Texas InstrumentsIn Stock: 1296SN75ALS192D Datasheet

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SN75ALS192DR

Texas InstrumentsIn Stock: 17178SN75ALS192DR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ISL32272EIBZ is determined by the following critical parameters:

• Protocol Compatibility: All substitute parts must support RS422 and RS485 protocols
• Driver/Receiver Configuration: 4/0 driver/receiver count is mandatory
• Package Type: 16-SOIC package with 0.154" (3.90mm) width is required for PCB compatibility
• Mounting Type: Surface mount technology must be maintained
• RoHS Compliance: ROHS3 compliance is required for regulatory alignment

The substitute parts identified below meet these core substitution criteria. Voltage supply ranges and operating temperature ranges vary among substitutes and must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Product Status)

DS26C31TM/NOPB and DS26C31TMX/NOPB are Texas Instruments RS422/RS485 drivers with active product status. Both maintain the 16-SOIC package and 4/0 driver/receiver configuration. These parts operate within 4.5V to 5.5V supply range and -40°C to 85°C temperature range, matching the ISL32272EIBZ operating temperature specification. MSL rating of 1 (Unlimited) provides superior moisture handling compared to the original part. DS26C31TMX/NOPB is available in higher inventory (20,338 pcs) with Cut Tape and Digi-Reel packaging options.

Secondary Substitute (Last Time Buy Status)

SN75ALS192D carries Last Time Buy status, indicating limited future availability. This part maintains protocol, package, and driver/receiver specifications but operates within a narrower voltage range (4.75V to 5.25V) and reduced temperature range (0°C to 70°C). Selection of this part should account for its end-of-life trajectory.

Active Alternative (Broad Availability)

SN75ALS192DR is an active product from Texas Instruments with the highest inventory availability (17,114 pcs) in Cut Tape and Digi-Reel format. Electrical specifications match SN75ALS192D with the same voltage and temperature constraints.

Frequently Asked Questions (FAQ)

Q: Can DS26C31TM/NOPB directly replace ISL32272EIBZ in existing designs?

A: DS26C31TM/NOPB meets all core substitution criteria: RS422/RS485 protocol support, 4/0 driver/receiver configuration, and 16-SOIC package. However, the voltage supply range is narrower (4.5V to 5.5V versus 3V to 5.5V). Applications operating below 4.5V require design verification.

Q: What is the difference between DS26C31TM/NOPB and DS26C31TMX/NOPB?

A: Both parts are functionally identical with matching electrical specifications. The primary difference is packaging format: DS26C31TM/NOPB is supplied in Tube packaging, while DS26C31TMX/NOPB is available in Cut Tape and Digi-Reel format. DS26C31TMX/NOPB has significantly higher inventory availability.

Q: Why do SN75ALS192D and SN75ALS192DR have different operating temperature ranges than the original part?

A: SN75ALS192D and SN75ALS192DR are specified for 0°C to 70°C operation, which is narrower than the ISL32272EIBZ range of -40°C to 85°C. Applications requiring extended temperature operation below 0°C or above 70°C must use DS26C31 series alternatives.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts carry ROHS3 compliance certification, matching the original ISL32272EIBZ specification.

Q: What does MSL rating mean for component selection?

A: Moisture Sensitivity Level (MSL) indicates the maximum time a component can be exposed to moisture before soldering. The ISL32272EIBZ has MSL 3 (168 hours), while all substitute parts have MSL 1 (Unlimited). Lower MSL ratings provide greater handling flexibility in manufacturing environments.