XR3073XID-F RS422/RS485 Transceiver Equivalent & Substitute Parts

Part Overview

The XR3073XID-F is a 1/1 full-duplex RS422/RS485 transceiver manufactured by MaxLinear, Inc., housed in a 14-SOIC surface mount package. This component operates across a 3V to 3.6V supply range with a 1 Mbps data rate and is rated for -40°C to 85°C operating temperatures. The part is currently classified as obsolete, making identification of functionally equivalent and upgraded alternatives essential for ongoing system support, redesigns, and new production runs.

Key Parameters

Parameter	XR3073XID-F
Type	Transceiver
Protocol	RS422, RS485
Drivers/Receivers	1/1
Duplex	Full
Receiver Hysteresis	25 mV
Data Rate	1 Mbps
Voltage Supply	3V – 3.6V
Operating Temperature	-40°C to 85°C
Package	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the XR3073XID-F is determined by strict alignment of the following electrical and mechanical parameters:

Protocol compatibility: RS422/RS485 full-duplex operation
Configuration: 1/1 driver/receiver topology
Package: 14-SOIC form factor with identical pin pitch and dimensions
Supply voltage range: 3V to 3.6V operation
Operating temperature range: Minimum -40°C to 85°C (or extended range)
Data rate capability: Minimum 250 kbps (XR3073XID-F operates at 1 Mbps)

Substitute parts are categorized into three groups:

Direct Equivalents maintain all electrical specifications including receiver hysteresis (100 mV) and data rate (250 kbps), with identical temperature range (-40°C to 85°C). These are pin-compatible replacements from active product lines.

Upgraded Variants extend the operating temperature range to -40°C to 125°C, providing enhanced thermal performance for demanding applications while maintaining all other electrical parameters.

Manufacturer-Recommended Alternatives increase data rate capability to 500 kbps, offering improved performance headroom for future-proofing designs while preserving package and supply voltage compatibility.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Data Rate	Receiver Hysteresis	Voltage Supply	Operating Temperature	Package	Product Status	RoHS Status
XR3073XID-F	MaxLinear, Inc.	RS422, RS485	1/1	1 Mbps	25 mV	3V – 3.6V	-40°C to 85°C	14-SOIC	Obsolete	Not specified
ADM3070EARZ	Analog Devices Inc.	RS422, RS485	1/1	250 kbps	100 mV	3V – 3.6V	-40°C to 85°C	14-SOIC	Active	ROHS3 Compliant
ADM3070EARZ-REEL7	Analog Devices Inc.	RS422, RS485	1/1	250 kbps	100 mV	3V – 3.6V	-40°C to 85°C	14-SOIC	Active	ROHS3 Compliant
MAX3070EESD+	Analog Devices Inc./Maxim Integrated	RS422, RS485	1/1	250 kbps	100 mV	3V – 3.6V	-40°C to 85°C	14-SOIC	Active	ROHS3 Compliant
MAX3070EESD+T	Analog Devices Inc./Maxim Integrated	RS422, RS485	1/1	250 kbps	100 mV	3V – 3.6V	-40°C to 85°C	14-SOIC	Active	ROHS3 Compliant
ADM3070EYRZ	Analog Devices Inc.	RS422, RS485	1/1	250 kbps	100 mV	3V – 3.6V	-40°C to 125°C	14-SOIC	Active	ROHS3 Compliant
ADM3070EYRZ-REEL7	Analog Devices Inc.	RS422, RS485	1/1	250 kbps	100 mV	3V – 3.6V	-40°C to 125°C	14-SOIC	Active	ROHS3 Compliant
MAX3070EASD+	Analog Devices Inc./Maxim Integrated	RS422, RS485	1/1	250 kbps	100 mV	3V – 3.6V	-40°C to 125°C	14-SOIC	Active	ROHS3 Compliant
MAX3070EASD+T	Analog Devices Inc./Maxim Integrated	RS422, RS485	1/1	250 kbps	100 mV	3V – 3.6V	-40°C to 125°C	14-SOIC	Active	ROHS3 Compliant
ADM3073EARZ	Analog Devices Inc.	RS422, RS485	1/1	500 kbps	100 mV	3V – 3.6V	-40°C to 85°C	14-SOIC	Active	ROHS3 Compliant
ADM3073EARZ-REEL7	Analog Devices Inc.	RS422, RS485	1/1	500 kbps	100 mV	3V – 3.6V	-40°C to 85°C	14-SOIC	Active	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts are sourced from active product lines with ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current manufacturing standards.

For direct replacement in existing designs operating within -40°C to 85°C temperature specifications, the ADM3070 and MAX3070 series (both tube and tape & reel packaging options) provide pin-compatible alternatives. These parts maintain identical electrical operation and package footprint.

For applications requiring extended thermal performance, the ADM3070EYRZ and MAX3070EASD+ variants extend the upper operating temperature to 125°C while preserving all other electrical characteristics and package compatibility.

For designs benefiting from increased data rate capability, the ADM3073EARZ and ADM3073EARZ-REEL7 parts operate at 500 kbps, doubling the performance headroom of the original XR3073XID-F while maintaining the same package, supply voltage, and temperature range specifications.

Packaging selection between tube and tape & reel (TR) formats depends on production volume and assembly automation requirements. Tape & reel variants typically offer higher inventory availability and are optimized for automated pick-and-place assembly.

Frequently Asked Questions (FAQ)

Q: Can ADM3070 and MAX3070 series parts directly replace the XR3073XID-F?

A: Yes. Both series maintain identical 14-SOIC package geometry, RS422/RS485 protocol support, 1/1 driver/receiver configuration, 3V to 3.6V supply voltage range, and -40°C to 85°C operating temperature. Pin compatibility is preserved across all specified alternatives.

Q: What is the difference between ADM3070EARZ and ADM3070EYRZ?

A: The primary difference is operating temperature range. ADM3070EARZ operates from -40°C to 85°C, while ADM3070EYRZ extends to -40°C to 125°C. All other electrical parameters remain identical. Selection depends on thermal requirements of the target application.

Q: Why do some part numbers include "-REEL7" suffix?

A: The "-REEL7" suffix indicates tape & reel packaging format, optimized for high-volume automated assembly. Parts without this suffix are supplied in tube packaging, suitable for lower-volume or manual assembly operations. Electrical specifications are identical between packaging variants.

Q: How does the ADM3073 series differ from ADM3070?

A: The ADM3073 series increases data rate capability to 500 kbps compared to 250 kbps for ADM3070. This provides enhanced performance headroom for future-proofing designs. All other parameters including package, supply voltage, and temperature range remain compatible with the original XR3073XID-F specifications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: What packaging options are available for the ADM3070 series?

A: ADM3070 parts are available in tube packaging (ADM3070EARZ, ADM3070EYRZ) and tape & reel format (ADM3070EARZ-REEL7, ADM3070EYRZ-REEL7). MAX3070 variants are supplied in tube (MAX3070EESD+, MAX3070EASD+) and cut tape with Digi-Reel format (MAX3070EESD+T, MAX3070EASD+T).

Q: Can I use a 500 kbps part in a design originally specified for 1 Mbps operation?

A: The ADM3073 series operates at 500 kbps, which is lower than the original XR3073XID-F specification of 1 Mbps. Application feasibility depends on actual system data rate requirements. If the design operates below 500 kbps, the ADM3073 is suitable. If higher data rates are required, the ADM3070 or MAX3070 series at 250 kbps may be limiting factors; system validation is necessary.

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