SP3072EMN-L Equivalent & Substitute Parts

Part Overview

The SP3072EMN-L is a half-duplex RS422/RS485 transceiver IC in 8-SOIC surface mount packaging, manufactured by MaxLinear, Inc. This device integrates one driver and one receiver for serial communication protocols requiring robust noise immunity and extended temperature operation from -40°C to 125°C. The part is currently obsolete, making equivalent substitutes necessary for ongoing system support and new designs requiring compatible functionality.

Key Parameters

Parameter	SP3072EMN-L
Manufacturer	MaxLinear, Inc.
Type	Transceiver Half-Duplex
Protocol	RS422, RS485
Drivers/Receivers	1/1
Data Rate	250 kbps
Supply Voltage	3.3V
Operating Temperature	-40°C to 125°C
Package	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Receiver Hysteresis	15 mV
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the SP3072EMN-L is determined by the following critical parameters:

Protocol compatibility: RS422/RS485 half-duplex operation
Configuration: 1 driver and 1 receiver
Package: 8-SOIC surface mount form factor
Data rate: 250 kbps minimum capability
Supply voltage range: 3V to 3.6V compatibility
Operating temperature range: -40°C minimum to 85°C or 125°C maximum
Receiver hysteresis: 100 mV (acceptable tolerance from 15 mV specification)

Substitute parts are grouped into two categories based on data rate capability:

Category A (250 kbps): MAX3072EASA+, MAX3072EASA+T, ADM3072EARZ, ADM3072EARZ-REEL7, ADM3072EYRZ, ADM3072EYRZ-REEL7

Category B (500 kbps): ADM3075EARZ, ADM3075EARZ-REEL7, ADM3075EYRZ, ADM3075EYRZ-REEL7

All substitutes maintain identical package geometry, mounting type, and protocol support. Category B parts offer higher data rate capability while maintaining backward compatibility with 250 kbps applications.

Parameter Comparison

Parameter	SP3072EMN-L	MAX3072EASA+	MAX3072EASA+T	ADM3072EARZ	ADM3072EARZ-REEL7	ADM3072EYRZ	ADM3072EYRZ-REEL7	ADM3075EARZ	ADM3075EARZ-REEL7	ADM3075EYRZ	ADM3075EYRZ-REEL7
Type	Transceiver Half	Transceiver Half	Transceiver Half	Transceiver Half	Transceiver Half	Transceiver Half	Transceiver Half	Transceiver Half	Transceiver Half	Transceiver Half	Transceiver Half
Protocol	RS422, RS485	RS422, RS485	RS422, RS485	RS422, RS485	RS422, RS485	RS422, RS485	RS422, RS485	RS422, RS485	RS422, RS485	RS422, RS485	RS422, RS485
Drivers/Receivers	1/1	1/1	1/1	1/1	1/1	1/1	1/1	1/1	1/1	1/1	1/1
Data Rate	250 kbps	250 kbps	250 kbps	250 kbps	250 kbps	250 kbps	250 kbps	500 kbps	500 kbps	500 kbps	500 kbps
Supply Voltage	3.3V	3V to 3.6V	3V to 3.6V	3V to 3.6V	3V to 3.6V	3V to 3.6V	3V to 3.6V	3V to 3.6V	3V to 3.6V	3V to 3.6V	3V to 3.6V
Operating Temperature	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C	-40°C to 85°C	-40°C to 85°C	-40°C to 125°C	-40°C to 125°C	-40°C to 85°C	-40°C to 85°C	-40°C to 125°C	-40°C to 125°C
Package	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Receiver Hysteresis	15 mV	100 mV	100 mV	100 mV	100 mV	100 mV	100 mV	100 mV	100 mV	100 mV	100 mV
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts are active production components with ROHS3 compliance and REACH unaffected status, providing regulatory continuity for new designs and legacy system support.

For applications requiring the original 250 kbps data rate specification, select from the MAX3072 or ADM3072 series. The MAX3072EASA+ and MAX3072EASA+T variants are manufactured by Analog Devices Inc./Maxim Integrated and maintain full compatibility with the SP3072EMN-L functional requirements.

For applications operating within the -40°C to 85°C temperature range, ADM3072EARZ or ADM3072EARZ-REEL7 provide equivalent performance. For extended temperature operation to 125°C, ADM3072EYRZ or ADM3072EYRZ-REEL7 are required.

The ADM3075 series (500 kbps variants) offers higher data rate capability while maintaining identical package geometry and protocol support. These parts are suitable for applications requiring enhanced bandwidth within the same form factor.

Packaging options include Tube, Cut Tape (CT) & Digi-Reel®, and Tape & Reel (TR) formats to accommodate different manufacturing and procurement workflows.

Frequently Asked Questions (FAQ)

Q: Can ADM3075 series parts replace SP3072EMN-L in existing designs?

A: Yes. The ADM3075 series maintains identical package geometry, protocol support, and 1/1 driver/receiver configuration. The 500 kbps data rate is backward compatible with 250 kbps applications. Verify operating temperature requirements: ADM3075 variants support -40°C to 85°C or -40°C to 125°C depending on part number suffix.

Q: What is the difference between receiver hysteresis values?

A: The SP3072EMN-L specifies 15 mV receiver hysteresis, while all substitute parts specify 100 mV. This difference affects noise immunity thresholds. Higher hysteresis provides greater noise rejection in electrically noisy environments but may reduce sensitivity to weak signals.

Q: Are packaging variants (Tube, Cut Tape, Tape & Reel) functionally equivalent?

A: Yes. Packaging variants contain identical die and electrical specifications. Differences are limited to quantity per reel, tape format, and shipping container. Selection depends on manufacturing process requirements and procurement volume.

Q: Which substitute part offers the best inventory availability?

A: ADM3075EYRZ provides the highest inventory level at 888,700 units. For 250 kbps applications, ADM3072EYRZ-REEL7 offers 12,100 units in Tape & Reel format.

Q: Do all substitutes support the full -40°C to 125°C temperature range?

A: No. MAX3072EASA+, MAX3072EASA+T, ADM3072EYRZ, ADM3072EYRZ-REEL7, ADM3075EYRZ, and ADM3075EYRZ-REEL7 support -40°C to 125°C. ADM3072EARZ, ADM3072EARZ-REEL7, ADM3075EARZ, and ADM3075EARZ-REEL7 are limited to -40°C to 85°C. Verify application temperature requirements before selection.

Q: Is the 3V to 3.6V supply voltage range compatible with 3.3V systems?

A: Yes. The 3.3V supply voltage of the SP3072EMN-L falls within the 3V to 3.6V range specified for all substitute parts, ensuring direct voltage compatibility.

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