SP486CT-L/TR RS422/RS485 Driver IC Equivalent & Substitute Parts

Part Overview

The SP486CT-L/TR is a 4/0 Driver RS422/RS485 interface IC in 16-SOIC packaging manufactured by MaxLinear, Inc. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and production continuity. The part operates within a supply voltage range of 4.75V to 5.25V and supports data rates up to 10Mbps across industrial and commercial RS422/RS485 communication applications.

Substiute Parts

SP486CT-L/TR

MaxLinear, Inc.In Stock: 762SP486CT-L/TR Datasheet

Current PartRFQ

LTC486CSW#PBF

Analog Devices Inc.In Stock: 2094LTC486CSW#PBF Datasheet

MFR RecommendedRFQ

LTC486CSW#TRPBF

Analog Devices Inc.In Stock: 3863LTC486CSW#TRPBF Datasheet

MFR RecommendedRFQ

LTC486ISW#PBF

Analog Devices Inc.In Stock: 1589LTC486ISW#PBF Datasheet

MFR RecommendedRFQ

LTC486ISW#TRPBF

Analog Devices Inc.In Stock: 3417LTC486ISW#TRPBF Datasheet

MFR RecommendedRFQ

MAX3042BCWE+

Analog Devices Inc./Maxim IntegratedIn Stock: 2186MAX3042BCWE+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SP486CT-L/TR is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Protocol: RS422/RS485
• Number of Drivers/Receivers: 4/0 configuration
• Voltage Supply Range: 4.75V ~ 5.25V
• Package Type: 16-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

Acceptable Variation Parameters:

• Operating Temperature Range: Substitutes may have extended temperature ranges (-40°C ~ 85°C) while maintaining the minimum 0°C ~ 70°C specification
• Data Rate: Substitutes may exceed the 10Mbps specification
• Product Status: Active status substitutes are acceptable for obsolete parts
• Moisture Sensitivity Level: Lower MSL values (1 vs. 3) indicate improved moisture resistance
• RoHS/REACH Compliance: Active substitutes include enhanced compliance certifications

All substitute parts listed maintain electrical and mechanical compatibility with the SP486CT-L/TR within these defined parameters.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical compatibility with the SP486CT-L/TR. Selection among substitutes is based on the following criteria:

For Standard Commercial Temperature Range (0°C ~ 70°C):

• LTC486CSW#PBF and LTC486CSW#TRPBF are direct functional equivalents with identical operating temperature specifications
• MAX3042BCWE+ provides equivalent functionality with enhanced data rate capability (20Mbps vs. 10Mbps)

For Extended Industrial Temperature Range (-40°C ~ 85°C):

• LTC486ISW#PBF and LTC486ISW#TRPBF extend operational capability beyond the original specification

Compliance and Reliability:

• All active substitutes carry ROHS3 compliance and REACH unaffected status
• All active substitutes feature MSL 1 (Unlimited) moisture sensitivity, improving reliability compared to the obsolete part's MSL 3 specification

Packaging Considerations:

• Tube packaging (PBF suffix): Suitable for lower-volume applications and manual assembly
• Cut Tape & Digi-Reel packaging (TRPBF suffix): Optimized for automated pick-and-place assembly and higher-volume production

Frequently Asked Questions (FAQ)

Q: Can I directly replace SP486CT-L/TR with any of the listed substitutes? A: Yes. All listed substitutes maintain the critical electrical parameters (RS422/RS485 protocol, 4/0 driver/receiver configuration, 4.75V ~ 5.25V supply voltage) and identical 16-SOIC package geometry required for direct replacement.

Q: What is the difference between LTC486CSW and LTC486ISW variants? A: The primary difference is operating temperature range. LTC486CSW operates 0°C ~ 70°C (commercial), while LTC486ISW operates -40°C ~ 85°C (industrial). Both maintain identical electrical specifications and package compatibility. Select based on your application's temperature requirements.

Q: Why do some substitutes show no data rate specification? A: Data rate is not specified for LTC486 variants in the provided documentation. The absence of specification does not indicate reduced capability; it reflects the available technical data. MAX3042BCWE+ explicitly specifies 20Mbps, exceeding the original 10Mbps specification.

Q: What is the significance of MSL rating differences? A: The SP486CT-L/TR carries MSL 3 (168 hours), while all active substitutes carry MSL 1 (Unlimited). Lower MSL values indicate superior moisture resistance and reduced risk of moisture-induced failures during storage and assembly. This represents an improvement over the obsolete part.

Q: Should I choose tube or cut tape packaging? A: Tube packaging (PBF) is suitable for manual assembly and lower-volume applications. Cut Tape & Digi-Reel packaging (TRPBF) is optimized for automated assembly equipment and higher-volume production runs. Both provide identical electrical and mechanical performance.

Q: Are there any compliance advantages to using active substitutes? A: Yes. All active substitutes carry ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. The obsolete SP486CT-L/TR does not include these certifications in the provided data.