SP3073EMN-L RS422/RS485 Transceiver Equivalent & Substitute Parts

Part Overview

The SP3073EMN-L is a 1/1 full-duplex RS422/RS485 transceiver IC manufactured by MaxLinear, Inc., housed in a 14-SOIC surface mount package. This component is classified as obsolete, with 1505 units available in new original stock. Due to its obsolete product status, identifying functionally equivalent and actively manufactured alternatives is essential for design continuity and long-term supply chain reliability.

Key Parameters

Parameter	SP3073EMN-L
Manufacturer	MaxLinear, Inc.
Type	Transceiver
Protocol	RS422, RS485
Number of Drivers/Receivers	1/1
Duplex	Full
Receiver Hysteresis	15 mV
Data Rate	500 kbps
Voltage - Supply	3.3V
Operating Temperature	-40°C ~ 125°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the SP3073EMN-L is determined by the following critical parameters:

Primary Compatibility Criteria:

Protocol support: RS422 and RS485
Configuration: 1/1 drivers/receivers, full-duplex operation
Package: 14-SOIC form factor with identical pin pitch (0.154", 3.90mm width)
Mounting: Surface mount technology
Supply voltage compatibility: 3.0V to 3.6V range (SP3073EMN-L operates at 3.3V)
Data rate: Minimum 500 kbps to match or exceed original specification
Operating temperature range: Must support -40°C minimum and 125°C maximum

Secondary Considerations:

Receiver hysteresis: Original part specifies 15 mV; substitutes with 100 mV hysteresis remain functionally compatible but exhibit different noise immunity characteristics
Product status: Active parts ensure ongoing availability and supply chain stability
Compliance certifications: RoHS3 compliance and REACH status for regulatory alignment

Substitutes are grouped by data rate capability and temperature range to facilitate selection based on application requirements.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Data Rate	Supply Voltage	Operating Temp	Receiver Hysteresis	Product Status	Packaging
SP3073EMN-L	MaxLinear, Inc.	RS422, RS485	1/1	500 kbps	3.3V	-40°C ~ 125°C	15 mV	Obsolete	14-SOIC
SP3073EEN-L/TR	MaxLinear, Inc.	RS422, RS485	1/1	500 kbps	3.3V	-40°C ~ 85°C	15 mV	Active	Tape & Reel
MAX3073EASD+	Analog Devices Inc./Maxim Integrated	RS422, RS485	1/1	500 kbps	3.0V ~ 3.6V	-40°C ~ 125°C	100 mV	Active	Tube
ADM3073EARZ	Analog Devices Inc.	RS422, RS485	1/1	500 kbps	3.0V ~ 3.6V	-40°C ~ 85°C	100 mV	Active	Tube
ADM3073EARZ-REEL7	Analog Devices Inc.	RS422, RS485	1/1	500 kbps	3.0V ~ 3.6V	-40°C ~ 85°C	100 mV	Active	Tape & Reel
ADM3076EARZ	Analog Devices Inc.	RS422, RS485	1/1	16 Mbps	3.0V ~ 3.6V	-40°C ~ 85°C	100 mV	Active	Tube
ADM3076EARZ-REEL7	Analog Devices Inc.	RS422, RS485	1/1	16 Mbps	3.0V ~ 3.6V	-40°C ~ 85°C	100 mV	Active	Cut Tape & Digi-Reel
ADM3070EARZ	Analog Devices Inc.	RS422, RS485	1/1	250 kbps	3.0V ~ 3.6V	-40°C ~ 85°C	100 mV	Active	Tube
ADM3070EARZ-REEL7	Analog Devices Inc.	RS422, RS485	1/1	250 kbps	3.0V ~ 3.6V	-40°C ~ 85°C	100 mV	Active	Tape & Reel
ADM3070EYRZ	Analog Devices Inc.	RS422, RS485	1/1	250 kbps	3.0V ~ 3.6V	-40°C ~ 125°C	100 mV	Active	Tube
ADM3070EYRZ-REEL7	Analog Devices Inc.	RS422, RS485	1/1	250 kbps	3.0V ~ 3.6V	-40°C ~ 125°C	100 mV	Active	Tape & Reel

Engineering Selection Recommendations

Primary Recommendation: SP3073EEN-L/TR

SP3073EEN-L/TR is the direct MaxLinear equivalent with active product status. It maintains identical electrical specifications to the SP3073EMN-L, including 500 kbps data rate and 15 mV receiver hysteresis. The operating temperature range is reduced to -40°C ~ 85°C, which is acceptable for most industrial and commercial applications. This part is available in Tape & Reel packaging with 5243 units in stock, providing superior supply chain continuity.

Secondary Recommendation: MAX3073EASD+ or ADM3073EARZ-REEL7

Both parts support 500 kbps data rate and full-duplex RS422/RS485 operation. MAX3073EASD+ maintains the full -40°C ~ 125°C temperature range of the original part and is ROHS3 compliant with unlimited moisture sensitivity level. ADM3073EARZ-REEL7 offers high inventory availability (5400 units) in Tape & Reel format with ROHS3 compliance. The 100 mV receiver hysteresis in these alternatives provides increased noise immunity compared to the original 15 mV specification.

High-Speed Alternative: ADM3076EARZ or ADM3076EARZ-REEL7

For applications requiring higher data rates, ADM3076 variants support 16 Mbps operation while maintaining full RS422/RS485 compatibility and 1/1 transceiver configuration. These parts are ROHS3 compliant and available in high quantities (12700 and 20462 units respectively). Temperature range is -40°C ~ 85°C.

Lower Data Rate Alternative: ADM3070EYRZ-REEL7

If application requirements permit reduced data rate (250 kbps), ADM3070EYRZ-REEL7 provides the full -40°C ~ 125°C temperature range with 16863 units in Tape & Reel stock. This option offers maximum temperature compatibility with the original part.

All recommended substitutes are ROHS3 compliant and REACH unaffected, meeting modern regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can SP3073EEN-L/TR directly replace SP3073EMN-L in all applications?

A: SP3073EEN-L/TR is electrically and mechanically compatible with SP3073EMN-L. The primary difference is the reduced operating temperature range (-40°C ~ 85°C versus -40°C ~ 125°C). If your application operates within -40°C ~ 85°C, this part is a direct substitute. If sustained operation above 85°C is required, select MAX3073EASD+ or ADM3070EYRZ-REEL7 instead.

Q: What is the significance of receiver hysteresis differences between 15 mV and 100 mV?

A: Receiver hysteresis determines the voltage difference between rising and falling threshold levels. The original SP3073EMN-L specifies 15 mV hysteresis, providing tighter threshold control. Substitutes with 100 mV hysteresis offer increased noise immunity in electrically noisy environments but may exhibit slightly different switching behavior. Both values are within RS422/RS485 specification compliance. Select based on your signal integrity requirements.

Q: Are packaging differences between tube and tape & reel significant?

A: Tube packaging is suitable for manual assembly and small-volume production. Tape & Reel packaging is optimized for automated pick-and-place assembly and high-volume manufacturing. Both formats contain identical die and electrical specifications. Select based on your assembly process requirements and volume.

Q: Can I use ADM3070 variants (250 kbps) in place of SP3073EMN-L (500 kbps)?

A: ADM3070 parts operate at 250 kbps maximum data rate, which is half the SP3073EMN-L specification. Use ADM3070 variants only if your application data rate requirement is 250 kbps or lower. For applications requiring 500 kbps or higher, select SP3073EEN-L/TR, MAX3073EASD+, ADM3073EARZ variants, or ADM3076 high-speed alternatives.

Q: What is the advantage of ADM3076 (16 Mbps) over the original SP3073EMN-L (500 kbps)?

A: ADM3076 transceivers support 16 Mbps data rates, enabling use in high-speed RS422/RS485 applications. If your design requires only 500 kbps operation, ADM3076 parts are backward compatible but offer excess capability. ADM3076 selection is appropriate for future-proofing designs or applications requiring higher communication speeds.

Q: Are all substitute parts RoHS compliant?

A: Yes. SP3073EEN-L/TR and all Analog Devices ADM/MAX variants listed are ROHS3 compliant. All parts are REACH unaffected. Compliance certifications are documented in product specifications.

Q: Which substitute offers the best supply chain availability?

A: ADM3070EYRZ-REEL7 and ADM3076EARZ-REEL7 offer the highest inventory levels (16863 and 20462 units respectively) in Tape & Reel format. SP3073EEN-L/TR provides 5243 units as the direct MaxLinear alternative. All three options ensure reliable long-term supply.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message