ISL32490EIBZ Equivalent & Substitute Parts

Part Overview

The ISL32490EIBZ is a full-duplex RS422/RS485 transceiver IC manufactured by Renesas Electronics Corporation in a 14-SOIC surface mount package. This device is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity. The part operates across industrial temperature ranges (-40°C to 85°C) with a 250 kbps data rate and 4.5V to 5.5V supply voltage. Locating parametrically equivalent active alternatives ensures design flexibility and supply chain resilience.

Substiute Parts

ISL32490EIBZ

Renesas Electronics CorporationIn Stock: 1023ISL32490EIBZ Datasheet

Current PartRFQ

ISL31470EIBZ

Renesas Electronics CorporationIn Stock: 9154ISL31470EIBZ Datasheet

Parametric EquivalentRFQ

ISL31490EIBZ

Renesas Electronics CorporationIn Stock: 917ISL31490EIBZ Datasheet

Parametric EquivalentRFQ

ISL32470EIBZ

Renesas Electronics CorporationIn Stock: 19070ISL32470EIBZ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ISL32490EIBZ is determined by strict parametric equivalence across the following critical criteria:

Protocol & Functionality: RS422/RS485 full-duplex transceiver operation with 1 driver and 1 receiver configuration

Electrical Specifications: 250 kbps data rate, 25 mV receiver hysteresis, 4.5V to 5.5V supply voltage range, and -40°C to 85°C operating temperature

Physical & Manufacturing: 14-SOIC surface mount package (0.154" width, 3.90mm), ROHS3 compliance, and MSL 2 rating

All substitute parts listed maintain identical electrical performance parameters and package specifications. The primary distinction among substitutes is product status: ISL31470EIBZ, ISL31490EIBZ, and ISL32470EIBZ are active products, whereas the original ISL32490EIBZ is obsolete.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the ISL32490EIBZ, transition to an active equivalent is recommended due to obsolete product status. All three substitute parts—ISL31470EIBZ, ISL31490EIBZ, and ISL32470EIBZ—maintain full parametric equivalence and ROHS3 compliance.

ISL32470EIBZ is the preferred selection, offering the highest inventory availability (19,056 pcs) and active product status, ensuring long-term supply chain stability and manufacturer support.

ISL31470EIBZ and ISL31490EIBZ are secondary alternatives with active status and adequate inventory (9,082 pcs and 831 pcs respectively), suitable for applications where ISL32470EIBZ is unavailable.

All substitutes are pin-compatible, electrically equivalent, and require no circuit modifications for direct replacement in 14-SOIC surface mount applications.

Frequently Asked Questions (FAQ)

Q: Can ISL31470EIBZ, ISL31490EIBZ, and ISL32470EIBZ be used interchangeably with ISL32490EIBZ?

A: Yes. All three parts are parametrically equivalent across protocol (RS422/RS485), electrical specifications (250 kbps data rate, 25 mV hysteresis, 4.5V–5.5V supply), operating temperature range (-40°C to 85°C), and 14-SOIC package configuration. Direct substitution requires no circuit modifications.

Q: Why is the ISL32490EIBZ classified as obsolete?

A: Product obsolescence is determined by the manufacturer. Active equivalents (ISL31470EIBZ, ISL31490EIBZ, ISL32470EIBZ) are available from Renesas Electronics Corporation and are recommended for new designs and ongoing production.

Q: Are there differences in packaging between the main part and substitutes?

A: All parts use identical 14-SOIC surface mount packaging (0.154" width, 3.90mm). The primary packaging difference is that ISL31470EIBZ, ISL31490EIBZ, and ISL32470EIBZ are supplied in tube packaging, whereas ISL32490EIBZ was supplied in standard packaging. This does not affect electrical or mechanical compatibility.

Q: Do all substitutes meet the same compliance standards?

A: Yes. All parts are ROHS3 compliant, REACH unaffected, and carry MSL 2 (1 Year) moisture sensitivity ratings. Compliance certifications are identical across all four parts.

Q: Which substitute part should be selected for new designs?

A: ISL32470EIBZ is recommended for new designs due to active product status and highest inventory availability. This ensures manufacturer support and supply chain continuity throughout the product lifecycle.