ISL32602EFBZ Equivalent & Substitute Parts

Part Overview

The ISL32602EFBZ is a 1/1 full-duplex RS422/RS485 transceiver manufactured by Renesas Electronics Corporation in a 14-SOIC surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The part operates across a wide supply voltage range of 1.8V to 3.3V and supports data rates up to 460 kbps with a receiver hysteresis of 65 mV.

Key Parameters

Parameter	ISL32602EFBZ
Manufacturer	Renesas Electronics Corporation
Type	Transceiver
Protocol	RS422, RS485
Number of Drivers/Receivers	1/1
Duplex	Full
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Voltage - Supply	1.8V ~ 3.3V
Data Rate	460 kbps
Receiver Hysteresis	65 mV
Operating Temperature	-40°C ~ 125°C
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the ISL32602EFBZ is determined by the following critical parameters:

Protocol compatibility: RS422/RS485 full-duplex operation
Package compatibility: 14-SOIC surface mount form factor
Electrical interface: 1/1 driver/receiver configuration
Supply voltage range: Must support the operating voltage requirements of the application
Data rate capability: Must meet or exceed the application's communication speed
Operating temperature range: Must cover the intended deployment environment
Compliance certifications: RoHS3 and REACH status for regulatory requirements

The substitute parts listed below maintain functional equivalence through identical protocol support, package geometry, and pin configuration while offering variations in supply voltage ranges, data rate capabilities, and temperature specifications.

Parameter Comparison

Parameter	ISL32602EFBZ	ISL3173EIBZ-T	SN65HVD37D	SN65HVD37DR
Manufacturer	Renesas Electronics	Renesas Electronics	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active	Active
Protocol	RS422, RS485	RS422, RS485	RS422, RS485	RS422, RS485
Number of Drivers/Receivers	1/1	1/1	1/1	1/1
Duplex	Full	Full	Full	Full
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Voltage - Supply	1.8V ~ 3.3V	3V ~ 3.6V	3V ~ 3.6V	3V ~ 3.6V
Data Rate	460 kbps	500 kbps	20 Mbps	20 Mbps
Receiver Hysteresis	65 mV	15 mV	60 mV	60 mV
Operating Temperature	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	3 (168 Hours)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

All substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the ISL32602EFBZ.

For applications requiring the extended temperature range of -40°C to 125°C, the ISL32602EFBZ remains the only option among the listed parts. However, given its obsolete status, long-term availability cannot be assured.

The ISL3173EIBZ-T offers active product status from Renesas Electronics with compatible protocol and package specifications. This part is suitable for applications operating within the 3V to 3.6V supply range and -40°C to 85°C temperature window, with data rate capability of 500 kbps.

The SN65HVD37D and SN65HVD37DR from Texas Instruments provide active product status with significantly higher data rate capability (20 Mbps) and superior moisture sensitivity rating (MSL 1 vs. MSL 3). Both parts operate within 3V to 3.6V supply range and -40°C to 85°C temperature specifications. The primary difference between these two Texas Instruments options is packaging format: SN65HVD37D is supplied in Tube, while SN65HVD37DR is supplied in Cut Tape and Digi-Reel format.

Frequently Asked Questions (FAQ)

Q: Can the ISL3173EIBZ-T directly replace the ISL32602EFBZ in all applications?

A: The ISL3173EIBZ-T is functionally compatible for RS422/RS485 communication in the 14-SOIC package. However, the supply voltage range differs: ISL3173EIBZ-T operates at 3V to 3.6V versus ISL32602EFBZ at 1.8V to 3.3V. Applications requiring supply voltages below 3V cannot use the ISL3173EIBZ-T. Additionally, the operating temperature range is reduced from 125°C to 85°C maximum.

Q: What are the advantages of the Texas Instruments SN65HVD37 series over the Renesas alternatives?

A: The SN65HVD37D and SN65HVD37DR offer data rate capability of 20 Mbps compared to 460 kbps for the ISL32602EFBZ and 500 kbps for the ISL3173EIBZ-T. The Texas Instruments parts also feature MSL rating of 1 (Unlimited) versus MSL 3 (168 Hours), providing superior moisture handling characteristics. Both maintain identical 14-SOIC package geometry and full-duplex RS422/RS485 protocol support.

Q: What is the difference between SN65HVD37D and SN65HVD37DR?

A: Both parts are electrically and functionally identical. The difference is packaging format: SN65HVD37D is supplied in Tube packaging, while SN65HVD37DR is supplied in Cut Tape and Digi-Reel format. Selection depends on assembly process requirements and inventory management preferences.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all listed substitute parts including ISL3173EIBZ-T, SN65HVD37D, and SN65HVD37DR are ROHS3 compliant and REACH unaffected, matching the regulatory status of the ISL32602EFBZ.

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

A: For new designs, selection should prioritize active product status parts. The ISL3173EIBZ-T from Renesas or the SN65HVD37 series from Texas Instruments are recommended. Choose based on supply voltage requirements (ISL3173EIBZ-T for 3V to 3.6V systems) and data rate needs (SN65HVD37 series for applications exceeding 500 kbps).

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