SP485EEP-L Equivalent & Substitute Parts

Part Overview

The SP485EEP-L is a half-duplex RS422/RS485 transceiver IC manufactured by MaxLinear, Inc., housed in an 8-pin DIP package for through-hole mounting. This part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production support. The SP485EEP-L operates within a 4.75V to 5.25V supply range with a 10 Mbps data rate and supports industrial temperature ranges from -40°C to 85°C.

Key Parameters

Parameter	SP485EEP-L
Manufacturer	MaxLinear, Inc.
Type	Transceiver Half-Duplex
Protocol	RS422, RS485
Number of Drivers/Receivers	1/1
Data Rate	10 Mbps
Voltage Supply	4.75V – 5.25V
Operating Temperature	-40°C to 85°C
Receiver Hysteresis	20 mV
Mounting Type	Through Hole
Package	8-DIP (0.300", 7.62mm)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict parameter matching across five critical dimensions:

Protocol Compatibility: All substitutes must support RS422 and RS485 protocols
Electrical Configuration: 1/1 driver/receiver configuration with half-duplex operation
Supply Voltage: 4.75V to 5.25V operating range
Package Type: 8-DIP through-hole mounting (0.300", 7.62mm)
Temperature Range: Operating temperature must encompass or match -40°C to 85°C

Substitutes are categorized by their relationship to the original part:

Direct Substitutes (Same Package, Active Status): Parts maintaining identical package geometry and through-hole mounting with active product status
Functional Equivalents (Different Electrical Characteristics): Parts meeting core protocol and package requirements but with variations in receiver hysteresis or data rate specifications
Package Variants (Surface Mount Alternative): The SP485EEN-L/TR offers identical electrical performance in 8-SOIC surface-mount packaging for designs permitting package migration

Parameter Comparison

Part Number	Manufacturer	Protocol	Config	Data Rate	Supply Voltage	Temp Range	Hysteresis	Package	Mount Type	Status
SP485EEP-L	MaxLinear	RS422/RS485	1/1	10 Mbps	4.75–5.25V	-40 to 85°C	20 mV	8-DIP	Through Hole	Obsolete
SP485EEN-L/TR	MaxLinear	RS422/RS485	1/1	10 Mbps	4.75–5.25V	-40 to 85°C	20 mV	8-SOIC	Surface Mount	Active
LTC1485IN8#PBF	Analog Devices	RS422/RS485	1/1	—	4.75–5.25V	-40 to 85°C	60 mV	8-DIP	Through Hole	Active
LTC1485CN8#PBF	Analog Devices	RS422/RS485	1/1	—	4.75–5.25V	0 to 70°C	60 mV	8-DIP	Through Hole	Active
ADM1485ANZ	Analog Devices	RS422/RS485	1/1	30 Mbps	4.75–5.25V	-40 to 85°C	70 mV	8-DIP	Through Hole	Active
ADM1485JNZ	Analog Devices	RS422/RS485	1/1	30 Mbps	4.75–5.25V	0 to 70°C	70 mV	8-DIP	Through Hole	Active
ADM485ANZ	Analog Devices	RS422/RS485	1/1	5 Mbps	4.75–5.25V	-40 to 85°C	70 mV	8-DIP	Through Hole	Active
ADM485JNZ	Analog Devices	RS422/RS485	1/1	5 Mbps	4.75–5.25V	0 to 70°C	70 mV	8-DIP	Through Hole	Active
LTC1487CN8#PBF	Analog Devices	RS422/RS485	1/1	250 kbps	4.75–5.25V	0 to 70°C	45 mV	8-DIP	Through Hole	Active
LTC485CN8#PBF	Analog Devices	RS422/RS485	1/1	—	4.75–5.25V	0 to 70°C	70 mV	8-DIP	Through Hole	Active
LTC485IN8#PBF	Analog Devices	RS422/RS485	1/1	—	4.75–5.25V	-40 to 85°C	70 mV	8-DIP	Through Hole	Active

Engineering Selection Recommendations

Primary Recommendation for Direct Replacement: LTC1485IN8#PBF and ADM1485ANZ are the preferred direct substitutes. Both maintain 8-DIP through-hole packaging, support the full -40°C to 85°C industrial temperature range, and carry active product status with RoHS3 compliance and REACH unaffected certification.

For Surface-Mount Designs: SP485EEN-L/TR provides an electrically identical alternative from MaxLinear with 8-SOIC packaging, maintaining the original 10 Mbps data rate and 20 mV hysteresis specification while offering active product status.

For Commercial Temperature Range Applications: LTC1485CN8#PBF, ADM1485JNZ, ADM485JNZ, and LTC485CN8#PBF operate within 0°C to 70°C and are suitable for non-industrial environments. These parts maintain active status and full compliance certifications.

For Lower Data Rate Applications: ADM485ANZ and ADM485JNZ support 5 Mbps operation, appropriate for applications not requiring the 10 Mbps capability of the original part. LTC1487CN8#PBF operates at 250 kbps for ultra-low-speed RS485 networks.

All recommended substitutes are RoHS3 compliant and REACH unaffected, meeting modern environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can I use LTC1485IN8#PBF as a direct replacement for SP485EEP-L?

A: Yes. Both parts share 8-DIP through-hole packaging, RS422/RS485 protocol support, 1/1 driver/receiver configuration, 4.75V–5.25V supply voltage, and -40°C to 85°C operating temperature range. The primary difference is receiver hysteresis (60 mV vs. 20 mV), which does not prevent functional substitution in standard RS485 applications.

Q: What is the difference between ADM1485ANZ and ADM485ANZ?

A: ADM1485ANZ supports 30 Mbps data rate, while ADM485ANZ supports 5 Mbps. Both share identical packaging, temperature range (-40°C to 85°C), and supply voltage specifications. Selection depends on application bandwidth requirements.

Q: Can I use SP485EEN-L/TR if my PCB is designed for through-hole components?

A: No. SP485EEN-L/TR uses 8-SOIC surface-mount packaging (0.154" width) and cannot be installed in through-hole footprints designed for 8-DIP packages. PCB redesign is required for this substitution.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry RoHS3 compliance and REACH unaffected certification, meeting current environmental regulations.

Q: Which substitute has the lowest receiver hysteresis?

A: LTC1487CN8#PBF has 45 mV receiver hysteresis, the lowest among all substitutes. However, it operates at 250 kbps data rate and 0°C to 70°C temperature range, limiting its use to low-speed commercial applications.

Q: What is the inventory status of these substitutes?

A: All substitute parts listed carry active product status with available inventory. SP485EEN-L/TR has the highest inventory (503,400 pcs), followed by ADM485JNZ (6,300 pcs) and LTC1487CN8#PBF (3,528 pcs).

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