XR3071XID-F RS422/RS485 Transceiver Equivalent & Substitute Parts

Part Overview

The XR3071XID-F is a full-duplex RS422/RS485 transceiver IC manufactured by MaxLinear, Inc., housed in an 8-SOIC surface mount package. This device operates at 250 kbps data rate with a 3V to 3.6V supply voltage range and supports industrial temperature operation from -40°C to 85°C. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	XR3071XID-F
Manufacturer	MaxLinear, Inc.
Type	Transceiver
Protocol	RS422, RS485
Number of Drivers/Receivers	1/1
Duplex	Full
Data Rate	250 kbps
Voltage - Supply	3V ~ 3.6V
Operating Temperature	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Receiver Hysteresis	25 mV
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the XR3071XID-F is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Protocol: RS422/RS485 full-duplex operation
Number of Drivers/Receivers: 1/1 configuration
Package: 8-SOIC form factor (0.154", 3.90mm Width)
Voltage Supply Range: 3V ~ 3.6V
Data Rate: 250 kbps minimum
Mounting Type: Surface Mount

Acceptable Variation Parameters:

Receiver Hysteresis: 15 mV to 100 mV (within specification tolerance)
Operating Temperature: -40°C to 85°C minimum; extended to 125°C acceptable for upgraded applications
Product Status: Active preferred; obsolete acceptable for legacy support
Packaging Format: Tube, Cut Tape (CT) & Digi-Reel®, or Tape & Reel (TR) formats are interchangeable based on procurement requirements
RoHS/REACH Compliance: ROHS3 Compliant and REACH Unaffected preferred for regulatory alignment

Substitute parts are grouped into direct equivalents (matching all parameters) and upgrade options (enhanced temperature range or performance characteristics).

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Data Rate	Supply Voltage	Operating Temp	Receiver Hysteresis	Package	Product Status	RoHS Status
XR3071XID-F	MaxLinear, Inc.	RS422, RS485	1/1	250 kbps	3V ~ 3.6V	-40°C ~ 85°C	25 mV	8-SOIC	Obsolete	N/A
ADM3071EARZ	Analog Devices Inc.	RS422, RS485	1/1	250 kbps	3V ~ 3.6V	-40°C ~ 85°C	100 mV	8-SOIC	Active	ROHS3 Compliant
ADM3071EARZ-REEL7	Analog Devices Inc.	RS422, RS485	1/1	250 kbps	3V ~ 3.6V	-40°C ~ 85°C	100 mV	8-SOIC	Active	ROHS3 Compliant
MAX3071EESA+	Analog Devices Inc./Maxim Integrated	RS422, RS485	1/1	250 kbps	3V ~ 3.6V	-40°C ~ 85°C	100 mV	8-SOIC	Active	ROHS3 Compliant
MAX3071EESA+T	Analog Devices Inc./Maxim Integrated	RS422, RS485	1/1	250 kbps	3V ~ 3.6V	-40°C ~ 85°C	100 mV	8-SOIC	Active	ROHS3 Compliant
MAX3071EASA+	Analog Devices Inc./Maxim Integrated	RS422, RS485	1/1	250 kbps	3V ~ 3.6V	-40°C ~ 125°C	100 mV	8-SOIC	Active	ROHS3 Compliant
ISL83071EIBZA	Renesas Electronics Corporation	RS422, RS485	1/1	250 kbps	3V ~ 3.6V	-40°C ~ 85°C	15 mV	8-SOIC	Active	ROHS3 Compliant
ISL83071EIBZA-T	Renesas Electronics Corporation	RS422, RS485	1/1	250 kbps	3V ~ 3.6V	-40°C ~ 85°C	15 mV	8-SOIC	Active	ROHS3 Compliant
LTC2851CS8#PBF	Analog Devices Inc.	RS422, RS485	1/1	20 Mbps	3V ~ 3.6V	0°C ~ 70°C	25 mV	8-SOIC	Active	ROHS3 Compliant
LTC2851CS8#TRPBF	Analog Devices Inc.	RS422, RS485	1/1	20 Mbps	3V ~ 3.6V	0°C ~ 70°C	25 mV	8-SOIC	Active	ROHS3 Compliant
LTC2851HS8#PBF	Analog Devices Inc.	RS422, RS485	1/1	20 Mbps	3V ~ 3.6V	-40°C ~ 125°C	25 mV	8-SOIC	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalents (Recommended Primary Substitutes):

ADM3071EARZ and ADM3071EARZ-REEL7 (Analog Devices Inc.) are direct functional equivalents with active product status and ROHS3 compliance. Both maintain the 250 kbps data rate, 3V to 3.6V supply range, and -40°C to 85°C operating temperature. The receiver hysteresis of 100 mV is within acceptable tolerance. Selection between tube (EARZ) and tape & reel (EARZ-REEL7) packaging depends on procurement volume and assembly requirements.

MAX3071EESA+ and MAX3071EESA+T (Analog Devices Inc./Maxim Integrated) provide equivalent electrical performance with active status and ROHS3 compliance. The EESA+T variant in Cut Tape & Digi-Reel® format offers flexibility for mixed-volume procurement. Both maintain full compatibility with the original specification.

Upgrade Option:

MAX3071EASA+ extends the operating temperature range to -40°C to 125°C while maintaining all other electrical parameters. This upgrade is suitable for applications requiring enhanced thermal performance without functional modification.

Alternative Substitutes:

ISL83071EIBZA and ISL83071EIBZA-T (Renesas Electronics Corporation) are manufacturer-recommended alternatives with active status and ROHS3 compliance. The 15 mV receiver hysteresis provides tighter input threshold control compared to the original 25 mV specification. The -T variant offers Cut Tape & Digi-Reel® packaging. These parts are suitable for applications where improved noise immunity is beneficial.

Limited Compatibility Options:

LTC2851CS8#PBF, LTC2851CS8#TRPBF, and LTC2851HS8#PBF (Analog Devices Inc.) operate at significantly higher data rates (20 Mbps) and have restricted operating temperature ranges. LTC2851CS8 variants are limited to 0°C to 70°C, while LTC2851HS8#PBF extends to -40°C to 125°C. These parts are suitable only for applications where the original 250 kbps data rate requirement can be exceeded and temperature constraints are compatible.

Frequently Asked Questions (FAQ)

Q: Can I directly replace XR3071XID-F with ADM3071EARZ without PCB modifications?

A: Yes. Both devices use the 8-SOIC package with identical pinout and electrical interface. The 100 mV receiver hysteresis of the ADM3071EARZ is within acceptable tolerance for RS422/RS485 applications. No PCB layout changes are required.

Q: What is the difference between ADM3071EARZ and ADM3071EARZ-REEL7?

A: Both parts are electrically identical. The difference is packaging format: EARZ is supplied in tube packaging, while EARZ-REEL7 is supplied in tape & reel format. Selection depends on assembly line requirements and procurement volume.

Q: Why do some substitutes have different receiver hysteresis values?

A: Receiver hysteresis determines the input threshold window for signal detection. The original XR3071XID-F specifies 25 mV. Substitutes with 15 mV (ISL83071EIBZA series) provide tighter thresholds for improved noise immunity. Substitutes with 100 mV (ADM3071, MAX3071 series) provide wider thresholds for greater noise tolerance. All values remain within RS422/RS485 specification compliance.

Q: Can I use LTC2851 series parts as direct replacements?

A: LTC2851 series parts are not direct replacements. While they maintain the same package and basic RS422/RS485 protocol, they operate at 20 Mbps data rate (versus 250 kbps) and have restricted operating temperature ranges. Use LTC2851 parts only if your application can accommodate higher data rates and the specified temperature limits.

Q: Is MAX3071EASA+ a better choice than MAX3071EESA+?

A: MAX3071EASA+ extends the operating temperature range to -40°C to 125°C, making it suitable for high-temperature applications. For standard -40°C to 85°C requirements, MAX3071EESA+ is functionally equivalent and typically more cost-effective. Select based on your specific thermal operating environment.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All active substitute parts listed are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

Q: What packaging options are available for high-volume production?

A: For high-volume assembly, tape & reel formats are recommended: ADM3071EARZ-REEL7, MAX3071EESA+T, and ISL83071EIBZA-T. These formats integrate directly with automated pick-and-place equipment and reduce handling costs.

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