ISL32472EIBZ Equivalent & Substitute Parts

Part Overview

The ISL32472EIBZ is an active RS422/RS485 half-duplex transceiver manufactured by Renesas Electronics Corporation in 8-SOIC surface mount packaging. This interface IC operates at 4.5V to 5.5V supply voltage with a 250kbps data rate and supports industrial temperature ranges from -40°C to 85°C. The part is currently in active production status with 1775 units in stock.

Equivalent and substitute parts are identified when design requirements permit component interchange due to matching electrical specifications, mechanical compatibility, and functional equivalence within the RS422/RS485 transceiver category.

Key Parameters

Parameter	ISL32472EIBZ
Manufacturer	Renesas Electronics Corporation
Type	Transceiver Half Duplex
Protocol	RS422, RS485
Number of Drivers/Receivers	1/1
Data Rate	250kbps
Voltage Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Receiver Hysteresis	25 mV
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict parameter matching across the following criteria:

Primary Matching Parameters:

Protocol: RS422/RS485 half-duplex operation
Package: 8-SOIC form factor with identical 0.154" width (3.90mm)
Drivers/Receivers: 1/1 configuration
Mounting: Surface mount technology
Data Rate: 250kbps minimum capability
Supply Voltage: Overlapping or compatible operating range
Temperature Range: -40°C to 85°C minimum coverage
RoHS3 Compliance: Environmental regulatory alignment

Parametric Equivalents share all primary matching parameters with identical electrical specifications.

Direct Substitutes maintain functional equivalence with minor parameter variations (hysteresis, MSL rating) that do not affect circuit operation within specified conditions.

Similar Alternatives provide RS422/RS485 half-duplex functionality in 8-SOIC packaging with acceptable parameter deviations for applications where extended data rates or temperature ranges are not required.

Parameter Comparison

Part Number	Manufacturer	Data Rate	Voltage Supply	Operating Temp	Receiver Hysteresis	Packaging	Inventory	Product Status
ISL32472EIBZ	Renesas	250kbps	4.5V ~ 5.5V	-40°C ~ 85°C	25 mV	Tube	1775 Pcs	Active
ISL31472EIBZ	Renesas	250kbps	4.5V ~ 5.5V	-40°C ~ 85°C	25 mV	Tube	12490 Pcs	Active
ISL32492EIBZ	Renesas	250kbps	4.5V ~ 5.5V	-40°C ~ 85°C	25 mV	Tube	7584 Pcs	Active
ADM487EARZ	Analog Devices	250kbps	4.75V ~ 5.25V	-40°C ~ 85°C	70 mV	Tube	50630 Pcs	Active
ADM487EARZ-REEL7	Analog Devices	250kbps	4.75V ~ 5.25V	-40°C ~ 85°C	70 mV	Cut Tape & Digi-Reel	20400 Pcs	Active
ADM1487EARZ	Analog Devices	2.5Mbps	4.75V ~ 5.25V	-40°C ~ 85°C	70 mV	Tube	1964 Pcs	Active
ADM1487EARZ-REEL7	Analog Devices	2.5Mbps	4.75V ~ 5.25V	-40°C ~ 85°C	70 mV	Cut Tape & Digi-Reel	2300 Pcs	Active
MAX13444EASA+T	Analog Devices/Maxim	250kbps	4.75V ~ 5.25V	-40°C ~ 125°C	25 mV	Cut Tape & Digi-Reel	2498 Pcs	Active
MAX3468CSA+	Analog Devices/Maxim	40Mbps	4.75V ~ 5.25V	0°C ~ 70°C	50 mV	Tube	12900 Pcs	Active
MAX3468CSA+T	Analog Devices/Maxim	40Mbps	4.75V ~ 5.25V	0°C ~ 70°C	50 mV	Cut Tape & Digi-Reel	6032 Pcs	Active
SP3494EN-L	MaxLinear, Inc.	2.5Mbps	3V ~ 3.6V	-40°C ~ 85°C	20 mV	Tube	1175 Pcs	Active

Engineering Selection Recommendations

Parametric Equivalents (ISL31472EIBZ, ISL32492EIBZ): These Renesas parts maintain identical electrical specifications to the ISL32472EIBZ with matching supply voltage, data rate, hysteresis, and temperature range. Both are active production parts with ROHS3 compliance. ISL31472EIBZ offers higher inventory availability (12490 units). Selection between these parts depends on packaging preference (tube) and application-specific requirements.

Direct Substitutes (ADM487EARZ, ADM487EARZ-REEL7): Analog Devices ADM487 series provides 250kbps operation across the required temperature range with 8-SOIC packaging. Supply voltage range is narrower (4.75V to 5.25V versus 4.5V to 5.5V) and receiver hysteresis is elevated to 70 mV. Both tube and reel packaging options are available with substantial inventory (50630 and 20400 units respectively). These parts are suitable for applications where the tighter voltage tolerance and higher hysteresis do not present circuit constraints.

Similar Alternatives (ADM1487EARZ, ADM1487EARZ-REEL7): Analog Devices ADM1487 series supports 2.5Mbps data rate, exceeding the 250kbps requirement. Temperature and voltage specifications match ADM487 series. Hysteresis is 70 mV. Limited inventory availability (1964 and 2300 units). Suitable for designs requiring higher data rate capability within the same package footprint.

Similar Alternatives (MAX13444EASA+T): Maxim MAX13444 operates at 250kbps with 25 mV hysteresis matching the ISL32472EIBZ. Extended operating temperature range to 125°C provides thermal margin. Supply voltage 4.75V to 5.25V. Available in cut tape & digi-reel packaging (2498 units). Appropriate for applications requiring elevated temperature operation.

Similar Alternatives (MAX3468CSA+, MAX3468CSA+T): Maxim MAX3468 series supports 40Mbps data rate with 50 mV hysteresis. Operating temperature range is restricted to 0°C to 70°C, limiting suitability for industrial temperature applications. Available in both tube (12900 units) and reel (6032 units) packaging. Selection requires confirmation that the narrower temperature range meets application requirements.

Similar Alternative (SP3494EN-L): MaxLinear SP3494EN-L operates at 2.5Mbps with 20 mV hysteresis. Supply voltage range is 3V to 3.6V, incompatible with the 4.5V to 5.5V requirement of the ISL32472EIBZ. This part is not suitable for direct substitution in circuits designed for 5V operation.

Frequently Asked Questions (FAQ)

Q: Can ISL31472EIBZ replace ISL32472EIBZ in production designs?

A: Yes. ISL31472EIBZ is a parametric equivalent with identical electrical specifications, package, and compliance certifications. Both are Renesas active production parts in 8-SOIC tube packaging. Substitution is valid without circuit modification.

Q: What is the key difference between ADM487EARZ and ADM1487EARZ?

A: ADM487EARZ supports 250kbps data rate matching the ISL32472EIBZ specification. ADM1487EARZ supports 2.5Mbps, providing tenfold higher data rate capability. Both share identical supply voltage (4.75V to 5.25V), temperature range (-40°C to 85°C), and 8-SOIC packaging. Selection depends on whether the application requires higher data rate performance.

Q: Are packaging variants (tube versus cut tape & digi-reel) electrically equivalent?

A: Yes. Packaging variants of the same part number (e.g., ADM487EARZ versus ADM487EARZ-REEL7) contain identical die and electrical specifications. Packaging differences affect only handling, storage, and assembly processes. Electrical performance is unchanged.

Q: Can MAX3468CSA+ substitute for ISL32472EIBZ?

A: MAX3468CSA+ is not recommended as a direct substitute. While both are RS422/RS485 half-duplex transceivers in 8-SOIC packaging, the MAX3468 operating temperature range (0°C to 70°C) does not meet the ISL32472EIBZ industrial specification (-40°C to 85°C). Use only if application temperature requirements are limited to 0°C to 70°C.

Q: Why is SP3494EN-L not suitable for ISL32472EIBZ replacement?

A: SP3494EN-L operates at 3V to 3.6V supply voltage, which is incompatible with the ISL32472EIBZ 4.5V to 5.5V requirement. Applying 5V to a 3.6V maximum rated device will cause permanent damage. This part is not electrically compatible.

Q: Which substitute offers the best inventory availability?

A: ADM487EARZ provides the highest inventory with 50630 units in stock. This part meets the 250kbps data rate and -40°C to 85°C temperature requirements with minor parameter variations (70 mV hysteresis, 4.75V to 5.25V supply voltage) that are acceptable for most industrial RS422/RS485 applications.

Q: Can I use MAX13444EASA+T if my application requires operation above 85°C?

A: MAX13444EASA+T extends the operating temperature range to 125°C, providing thermal margin above the ISL32472EIBZ specification. This part is suitable for applications requiring operation up to 125°C while maintaining 250kbps data rate and 25 mV hysteresis specifications.

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