SP3087EEN-L Equivalent & Substitute Parts

Part Overview

The SP3087EEN-L is a 1/1 full-duplex RS422/RS485 transceiver IC manufactured by MaxLinear, Inc., housed in an 8-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring RS422/RS485 interface functionality.

Key Parameters

Parameter	SP3087EEN-L
Manufacturer	MaxLinear, Inc.
Type	Transceiver
Protocol	RS422, RS485
Number of Drivers/Receivers	1/1
Duplex	Full
Receiver Hysteresis	100 mV
Data Rate	20 Mbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the SP3087EEN-L is determined by the following critical parameters:

Protocol compatibility: RS422/RS485 full-duplex operation
Electrical interface: 1/1 driver/receiver configuration
Package compatibility: 8-SOIC form factor (0.154", 3.90mm width)
Receiver hysteresis: 100 mV threshold
Supply voltage range: 4.5V ~ 5.5V nominal operation
Operating temperature range: -40°C ~ 85°C
Data rate capability: minimum 20 Mbps

Substitute parts are grouped into two categories based on these parameters:

Category A: Direct Electrical Equivalents (100 mV Hysteresis, 4.5V ~ 5.5V Supply)

MAX13087ECSA+, MAX13087ECSA+T, MAX13087EESA+, MAX13087EESA+T
These parts maintain identical receiver hysteresis (100 mV) and supply voltage range (4.5V ~ 5.5V), with data rates of 16 Mbps, meeting or exceeding the SP3087EEN-L specification.

Category B: Functional Equivalents (Reduced Hysteresis, Narrower Supply Range)

LTC1690CS8#PBF, LTC1690CS8#TRPBF, LTC1690IS8#PBF, LTC1690IS8#TRPBF
These parts operate at 30 mV receiver hysteresis with 4.75V ~ 5.25V supply range and 5 Mbps data rate. Substitution requires verification of system tolerance to reduced hysteresis and narrower supply voltage window.

Category C: Alternative Supply Voltage (3V ~ 3.6V Operation)

MAX3077EESA+
This part operates at 3V ~ 3.6V supply voltage, incompatible with the SP3087EEN-L's 4.5V ~ 5.5V requirement without external voltage regulation.

Category D: Reduced Data Rate (10 Mbps)

MAX3087CSA+
This part operates at 10 Mbps, below the SP3087EEN-L's 20 Mbps specification, suitable only for lower-speed applications.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Receiver Hysteresis	Data Rate	Supply Voltage	Operating Temperature	Package	Product Status	Packaging Type
SP3087EEN-L	MaxLinear, Inc.	RS422, RS485	1/1	100 mV	20 Mbps	4.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Obsolete	N/A
MAX13087ECSA+	Analog Devices Inc./Maxim Integrated	RS422, RS485	1/1	100 mV	16 Mbps	4.5V ~ 5.5V	0°C ~ 70°C	8-SOIC	Active	Tube
MAX13087ECSA+T	Analog Devices Inc./Maxim Integrated	RS422, RS485	1/1	100 mV	16 Mbps	4.5V ~ 5.5V	0°C ~ 70°C	8-SOIC	Active	Tape & Reel (TR)
MAX13087EESA+	Analog Devices Inc./Maxim Integrated	RS422, RS485	1/1	100 mV	16 Mbps	4.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active	Tube
MAX13087EESA+T	Analog Devices Inc./Maxim Integrated	RS422, RS485	1/1	100 mV	16 Mbps	4.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active	Cut Tape (CT) & Digi-Reel®
LTC1690CS8#PBF	Analog Devices Inc.	RS422, RS485	1/1	30 mV	5 Mbps	4.75V ~ 5.25V	0°C ~ 70°C	8-SOIC	Active	Tube
LTC1690CS8#TRPBF	Analog Devices Inc.	RS422, RS485	1/1	30 mV	5 Mbps	4.75V ~ 5.25V	0°C ~ 70°C	8-SOIC	Active	Tape & Reel (TR)
LTC1690IS8#PBF	Analog Devices Inc.	RS422, RS485	1/1	30 mV	5 Mbps	4.75V ~ 5.25V	-40°C ~ 85°C	8-SOIC	Active	Tube
LTC1690IS8#TRPBF	Analog Devices Inc.	RS422, RS485	1/1	30 mV	5 Mbps	4.75V ~ 5.25V	-40°C ~ 85°C	8-SOIC	Active	Tape & Reel (TR)
MAX3077EESA+	Analog Devices Inc./Maxim Integrated	RS422, RS485	1/1	100 mV	16 Mbps	3V ~ 3.6V	-40°C ~ 85°C	8-SOIC	Active	Tube
MAX3087CSA+	Analog Devices Inc./Maxim Integrated	RS422, RS485	1/1	100 mV	10 Mbps	4.75V ~ 5.25V	0°C ~ 70°C	8-SOIC	Active	Tube

Engineering Selection Recommendations

Preferred Substitutes for Full Compatibility:

MAX13087EESA+ and MAX13087EESA+T are the primary recommended substitutes. Both parts maintain the SP3087EEN-L's critical electrical parameters: 100 mV receiver hysteresis, 4.5V ~ 5.5V supply voltage range, and -40°C ~ 85°C operating temperature. These parts are active products with ROHS3 compliance and REACH unaffected status. The 16 Mbps data rate exceeds the original 20 Mbps specification requirement. Packaging options include Tube (MAX13087EESA+) and Cut Tape & Digi-Reel® (MAX13087EESA+T), with 2300 and 5500 units respectively in stock.

Alternative Substitutes with Temperature Limitations:

MAX13087ECSA+ and MAX13087ECSA+T maintain identical electrical parameters but operate within a narrower temperature range (0°C ~ 70°C). These are suitable for applications not requiring the full -40°C ~ 85°C range. Both are active products with ROHS3 compliance.

Functional Alternatives with Parameter Deviations:

LTC1690 series parts (LTC1690CS8#PBF, LTC1690CS8#TRPBF, LTC1690IS8#PBF, LTC1690IS8#TRPBF) provide RS422/RS485 functionality but with reduced receiver hysteresis (30 mV versus 100 mV) and lower data rate (5 Mbps versus 20 Mbps). The supply voltage range is narrower (4.75V ~ 5.25V). These parts are suitable only for applications with relaxed performance requirements and verified tolerance to reduced hysteresis margins.

Incompatible Alternatives:

MAX3077EESA+ operates at 3V ~ 3.6V supply voltage, incompatible with the SP3087EEN-L's 4.5V ~ 5.5V requirement. MAX3087CSA+ operates at 10 Mbps, below the original 20 Mbps specification. Neither is recommended as a direct substitute without external voltage regulation or system redesign.

Frequently Asked Questions (FAQ)

Q: Can MAX13087EESA+ directly replace SP3087EEN-L in existing designs?

A: Yes. MAX13087EESA+ maintains the critical electrical parameters: 100 mV receiver hysteresis, 4.5V ~ 5.5V supply voltage, and -40°C ~ 85°C operating temperature. The 8-SOIC package is identical. Pin-for-pin compatibility and functional equivalence are confirmed. Both are active products with current manufacturing support.

Q: What is the difference between MAX13087EESA+ and MAX13087ECSA+?

A: Both parts share identical electrical specifications (100 mV hysteresis, 16 Mbps data rate, 4.5V ~ 5.5V supply). The difference is operating temperature range: MAX13087EESA+ operates -40°C ~ 85°C, while MAX13087ECSA+ operates 0°C ~ 70°C. Select MAX13087EESA+ for full temperature range applications.

Q: Why is LTC1690 listed as a substitute if it has different parameters?

A: LTC1690 series parts provide RS422/RS485 transceiver functionality in the same 8-SOIC package. However, they operate at 30 mV receiver hysteresis (versus 100 mV) and 5 Mbps data rate (versus 20 Mbps). These parts are functional alternatives only for applications with reduced performance requirements and verified system tolerance to lower hysteresis margins and narrower supply voltage range (4.75V ~ 5.25V).

Q: What packaging options are available for MAX13087EESA+?

A: MAX13087EESA+ is available in Tube packaging (1000-unit quantities typical). MAX13087EESA+T is available in Cut Tape & Digi-Reel® format. Both are 8-SOIC surface mount packages with identical electrical specifications. Select based on assembly process requirements and volume.

Q: Is MAX3077EESA+ compatible with SP3087EEN-L?

A: No. MAX3077EESA+ operates at 3V ~ 3.6V supply voltage, incompatible with the SP3087EEN-L's 4.5V ~ 5.5V requirement. This part is designed for low-voltage applications and requires external voltage regulation for use in 5V systems.

Q: Can MAX3087CSA+ replace SP3087EEN-L?

A: No. MAX3087CSA+ operates at 10 Mbps maximum data rate, below the SP3087EEN-L's 20 Mbps specification. This part is suitable only for lower-speed RS422/RS485 applications. Additionally, its supply voltage range (4.75V ~ 5.25V) is narrower than the original part.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute parts listed (MAX13087 and LTC1690 series) are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

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