SP487CS-L Equivalent & Substitute Parts Reference

Part Overview

The SP487CS-L is a 4/0 Driver RS422/RS485 interface IC manufactured by MaxLinear, Inc., housed in a 16-DIP package. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The SP487CS-L provides four drivers and zero receivers for RS422 and RS485 serial communication protocols, operating within a 4.75V to 5.25V supply voltage range and 0°C to 70°C temperature range.

Substiute Parts

SP487CS-L

MaxLinear, Inc.In Stock: 1099SP487CS-L Datasheet

Current PartRFQ

LTC487CN#PBF

Analog Devices Inc.In Stock: 1869LTC487CN#PBF Datasheet

MFR RecommendedRFQ

MC3487N

Texas InstrumentsIn Stock: 1881MC3487N Datasheet

MFR RecommendedRFQ

SN75174N

Texas InstrumentsIn Stock: 130103SN75174N Datasheet

MFR RecommendedRFQ

SN75LBC174N

Texas InstrumentsIn Stock: 1617SN75LBC174N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SP487CS-L are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

• Protocol Compatibility: RS422 and/or RS485 support
• Driver/Receiver Configuration: 4/0 (four drivers, zero receivers) or functionally equivalent
• Supply Voltage Range: 4.75V ~ 5.25V
• Operating Temperature Range: 0°C ~ 70°C
• Package Type: 16-DIP (0.300", 7.62mm) / 16-PDIP
• Mounting Type: Through Hole

Substitutes are grouped into two categories:

Group 1 - Full Electrical Equivalents (4/0 Configuration)

• LTC487CN#PBF (Analog Devices Inc.)
• SN75174N (Texas Instruments)
• SN75LBC174N (Texas Instruments)

These parts maintain the identical 4/0 driver/receiver configuration and support both RS422 and RS485 protocols.

Group 2 - Functional Alternative (1/1 Configuration)

• MC3487N (Texas Instruments)

This part operates with a 1/1 driver/receiver configuration and supports RS422 protocol only. It is suitable for applications where single driver/receiver functionality is acceptable.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs)

LTC487CN#PBF and SN75174N are the preferred substitutes for the SP487CS-L. Both maintain the 4/0 driver/receiver configuration and dual RS422/RS485 protocol support. LTC487CN#PBF is manufactured by Analog Devices Inc. and carries Active product status with ROHS3 compliance and REACH Unaffected certification. SN75174N is manufactured by Texas Instruments, also with Active product status, ROHS3 compliance, and REACH Unaffected certification. SN75174N offers significantly higher inventory availability (130,022 units in stock).

Secondary Substitute (Functional Alternative)

SN75LBC174N is an obsolete part from Texas Instruments with 4/0 configuration and dual protocol support. While it maintains electrical compatibility with the SP487CS-L, its obsolete status makes it unsuitable for new production designs. This part is listed for reference only in legacy system maintenance scenarios.

Functional Alternative (Limited Compatibility)

MC3487N from Texas Instruments operates with a 1/1 driver/receiver configuration and RS422 protocol only. This part is suitable only for applications where single driver/receiver functionality is acceptable and RS485 protocol is not required. MC3487N carries Active product status with ROHS3 compliance and REACH Unaffected certification.

Frequently Asked Questions (FAQ)

Q: Can LTC487CN#PBF directly replace SP487CS-L in existing designs?

A: Yes. LTC487CN#PBF maintains identical electrical specifications including 4/0 driver/receiver configuration, RS422/RS485 protocol support, 4.75V to 5.25V supply voltage, 0°C to 70°C operating temperature range, and 16-DIP package format. No circuit modifications are required.

Q: What is the difference between SN75174N and SN75LBC174N?

A: Both parts support 4/0 driver/receiver configuration and RS422/RS485 protocols with identical supply voltage and operating temperature ranges. SN75174N is Active product status with superior availability, while SN75LBC174N is Obsolete with a higher specified data rate of 30 Mbps compared to SN75LBC174N's 10 Mbps specification. For new designs, SN75174N is the appropriate choice.

Q: Is MC3487N a suitable replacement for SP487CS-L?

A: MC3487N is a functional alternative only for applications requiring single driver/receiver operation (1/1 configuration) and RS422 protocol support. It is not suitable for applications requiring four drivers or RS485 protocol support. Circuit redesign may be necessary.

Q: Are all substitute parts RoHS and REACH compliant?

A: LTC487CN#PBF, MC3487N, and SN75174N are ROHS3 Compliant and REACH Unaffected. SN75LBC174N is also ROHS3 Compliant and REACH Unaffected. All active substitutes meet current environmental compliance requirements.

Q: What packaging options are available for substitute parts?

A: LTC487CN#PBF is supplied in Tube packaging. SN75174N is supplied in Tube packaging. MC3487N is supplied in Box packaging. All parts are housed in 16-DIP (0.300", 7.62mm) packages suitable for through-hole mounting on standard PCB layouts.