SP485RCP-L Equivalent & Substitute Parts

Part Overview

The SP485RCP-L is a half-duplex RS422/RS485 transceiver IC manufactured by MaxLinear, Inc., housed in an 8-DIP through-hole package. This part operates at 5 Mbps data rate with a supply voltage range of 4.75V to 5.25V and an operating temperature range of 0°C to 70°C. The SP485RCP-L is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. Substitute parts must maintain electrical compatibility across protocol support, driver/receiver configuration, duplex mode, supply voltage, and package type while accommodating modern product status and availability requirements.

Key Parameters

Parameter	SP485RCP-L
Manufacturer	MaxLinear, Inc.
Protocol	RS422, RS485
Type	Transceiver
Number of Drivers/Receivers	1/1
Duplex	Half
Data Rate	5 Mbps
Voltage - Supply	4.75V ~ 5.25V
Operating Temperature	0°C ~ 70°C
Mounting Type	Through Hole
Package / Case	8-DIP (0.300", 7.62mm)
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the SP485RCP-L is determined by strict adherence to the following electrical and mechanical parameters:

Critical Compatibility Parameters:

Protocol: RS422/RS485 support required
Driver/Receiver Configuration: 1/1 (one driver, one receiver)
Duplex Mode: Half-duplex operation
Supply Voltage: 4.75V to 5.25V range
Mounting Type: Through-hole configuration
Package: 8-DIP form factor (0.300", 7.62mm width)
Moisture Sensitivity: MSL 1 (Unlimited)

Acceptable Variations:

Data Rate: Substitute parts may exceed 5 Mbps specification
Operating Temperature: Substitute parts may extend temperature range beyond 0°C to 70°C
Product Status: Active parts are acceptable replacements for obsolete parts
Receiver Hysteresis: Variations permitted within manufacturer specifications
RoHS/REACH Compliance: Enhanced compliance acceptable

All substitute parts listed maintain identical electrical protocol support, pin configuration, and package dimensions as the SP485RCP-L.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Duplex	Data Rate	Supply Voltage	Operating Temp	Package	Product Status
SP485RCP-L	MaxLinear, Inc.	RS422, RS485	1/1	Half	5 Mbps	4.75V ~ 5.25V	0°C ~ 70°C	8-DIP	Obsolete
SP485REN-L/TR	MaxLinear, Inc.	RS422, RS485	1/1	Half	5 Mbps	4.75V ~ 5.25V	-40°C ~ 85°C	8-SOIC	Active
ADM1485ANZ	Analog Devices Inc.	RS422, RS485	1/1	Half	30 Mbps	4.75V ~ 5.25V	-40°C ~ 85°C	8-DIP	Active
ADM1485JNZ	Analog Devices Inc.	RS422, RS485	1/1	Half	30 Mbps	4.75V ~ 5.25V	0°C ~ 70°C	8-DIP	Active
ADM485ANZ	Analog Devices Inc.	RS422, RS485	1/1	Half	5 Mbps	4.75V ~ 5.25V	-40°C ~ 85°C	8-DIP	Active
ADM485JNZ	Analog Devices Inc.	RS422, RS485	1/1	Half	5 Mbps	4.75V ~ 5.25V	0°C ~ 70°C	8-DIP	Active
LTC1485CN8#PBF	Analog Devices Inc.	RS422, RS485	1/1	Half	—	4.75V ~ 5.25V	0°C ~ 70°C	8-DIP	Active
LTC1485IN8#PBF	Analog Devices Inc.	RS422, RS485	1/1	Half	—	4.75V ~ 5.25V	-40°C ~ 85°C	8-DIP	Active
LTC485CN8#PBF	Analog Devices Inc.	RS422, RS485	1/1	Half	—	4.75V ~ 5.25V	0°C ~ 70°C	8-DIP	Active
LTC485IN8#PBF	Analog Devices Inc.	RS422, RS485	1/1	Half	—	4.75V ~ 5.25V	-40°C ~ 85°C	8-DIP	Active
MAX1487CPA+	Analog Devices Inc./Maxim Integrated	RS422, RS485	1/1	Half	2.5 Mbps	4.75V ~ 5.25V	0°C ~ 70°C	8-DIP	Active

Engineering Selection Recommendations

Through-Hole Package Substitutes (Recommended for Direct Replacement):

For applications requiring identical through-hole 8-DIP mounting, the following active parts provide direct electrical and mechanical compatibility:

ADM1485JNZ: Maintains identical operating temperature range (0°C to 70°C) and 5 Mbps data rate specification. ROHS3 compliant. Recommended for temperature-matched applications.
ADM485JNZ: Identical operating temperature range and data rate. ROHS3 compliant. Alternative Analog Devices option with extended inventory.
LTC1485CN8#PBF or LTC485CN8#PBF: Maintain 0°C to 70°C operating range. ROHS3 compliant. Suitable for applications with matching temperature requirements.
MAX1487CPA+: Maintains 0°C to 70°C operating range. ROHS3 compliant. Maxim Integrated alternative with 2.5 Mbps data rate.

Extended Temperature Range Substitutes:

For applications requiring expanded operating temperature capability (-40°C to 85°C):

ADM1485ANZ: 30 Mbps data rate with extended temperature range. ROHS3 compliant.
ADM485ANZ: 5 Mbps data rate with extended temperature range. ROHS3 compliant.
LTC1485IN8#PBF or LTC485IN8#PBF: Extended temperature range. ROHS3 compliant.

Surface-Mount Alternative:

SP485REN-L/TR: MaxLinear manufacturer-recommended upgrade. 8-SOIC surface-mount package with extended temperature range (-40°C to 85°C). Active product status. Suitable for new PCB designs requiring surface-mount technology.

All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity classification and are RoHS compliant, supporting modern manufacturing and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can SP485REN-L/TR replace SP485RCP-L in existing designs?

A: SP485REN-L/TR is electrically equivalent but uses 8-SOIC surface-mount packaging instead of 8-DIP through-hole. Direct PCB substitution is not possible without redesign. This part is suitable for new designs requiring surface-mount technology.

Q: Which substitute maintains the exact operating temperature range of SP485RCP-L?

A: ADM1485JNZ, ADM485JNZ, LTC1485CN8#PBF, LTC485CN8#PBF, and MAX1487CPA+ all maintain the 0°C to 70°C operating temperature range. These are direct functional replacements for temperature-matched applications.

Q: What is the difference between ADM1485 and ADM485 series?

A: Both series support identical RS422/RS485 protocols with 1/1 driver/receiver configuration and half-duplex operation. ADM1485 variants support 30 Mbps data rate, while ADM485 variants support 5 Mbps data rate matching the original SP485RCP-L specification.

Q: Are all substitute parts RoHS compliant?

A: All listed substitute parts are ROHS3 compliant, meeting modern environmental and manufacturing standards. The original SP485RCP-L does not specify RoHS status due to its obsolete classification.

Q: Can I use a substitute with higher data rate than 5 Mbps?

A: Yes. Substitute parts with higher data rates (such as ADM1485ANZ at 30 Mbps) are backward compatible with 5 Mbps applications. The higher data rate capability does not affect operation at lower speeds.

Q: What is the inventory status of substitute parts?

A: All listed substitute parts are active products with confirmed inventory availability. ADM485JNZ has the highest inventory (6,300 pcs), followed by LTC485IN8#PBF (3,555 pcs) and LTC485CN8#PBF (3,155 pcs).

Q: Do substitute parts require circuit modifications?

A: No. All substitute parts maintain identical pin configuration, electrical characteristics, and supply voltage requirements (4.75V to 5.25V). Direct pin-for-pin substitution is supported for through-hole package variants.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message