SP488CT-L/TR Equivalent & Substitute Parts

Part Overview

The SP488CT-L/TR is a 0/4 Receiver RS422/RS485 interface IC manufactured by MaxLinear, Inc., housed in a 16-SOIC package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring compatible receiver functionality.

Substiute Parts

SP488CT-L/TR

MaxLinear, Inc.In Stock: 851SP488CT-L/TR Datasheet

Current PartRFQ

LTC488CSW#PBF

Analog Devices Inc.In Stock: 2061LTC488CSW#PBF Datasheet

DirectRFQ

LTC488CSW#TRPBF

Analog Devices Inc.In Stock: 1991LTC488CSW#TRPBF Datasheet

MFR RecommendedRFQ

LTC488ISW#PBF

Analog Devices Inc.In Stock: 2033LTC488ISW#PBF Datasheet

MFR RecommendedRFQ

LTC488ISW#TRPBF

Analog Devices Inc.In Stock: 1847LTC488ISW#TRPBF Datasheet

MFR RecommendedRFQ

TB5R1DW

Texas InstrumentsIn Stock: 1143TB5R1DW Datasheet

MFR RecommendedRFQ

TB5R2DWR

Texas InstrumentsIn Stock: 3730TB5R2DWR Datasheet

MFR RecommendedRFQ

TB5R3DW

Texas InstrumentsIn Stock: 917TB5R3DW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SP488CT-L/TR is determined by the following critical parameters:

• Package Compatibility: 16-SOIC form factor (0.295", 7.50mm Width)
• Functional Type: Receiver configuration with 0/4 driver/receiver count
• Protocol Support: RS422/RS485 interface capability
• Electrical Compatibility: Supply voltage range and operating temperature envelope
• Mounting Type: Surface mount technology

Substitute parts must maintain electrical and mechanical compatibility within these defined parameters. The Analog Devices LTC488 series and Texas Instruments TB5R series meet these core substitution criteria, with variations in packaging format (Tube vs. Tape & Reel) and operating temperature ranges.

Parameter Comparison

Engineering Selection Recommendations

Analog Devices LTC488 Series (Recommended Primary Substitutes)

The LTC488CSW#PBF and LTC488CSW#TRPBF variants provide direct electrical and thermal compatibility with the SP488CT-L/TR within the original 0°C to 70°C operating range. Both are ROHS3 compliant and carry active product status with unlimited moisture sensitivity rating (MSL 1). The LTC488ISW#PBF and LTC488ISW#TRPBF variants extend the operating temperature range to -40°C to 85°C, suitable for applications requiring enhanced thermal performance. All LTC488 variants maintain RS422/RS485 protocol support and identical package geometry.

Texas Instruments TB5R Series (Extended Temperature Alternative)

The TB5R1DW, TB5R2DWR, and TB5R3DW receivers provide 16-SOIC package compatibility with expanded supply voltage tolerance (4.5V to 5.5V) and extended operating temperature range (-40°C to 85°C). These components are ROHS3 compliant and active products. Protocol specification is not provided for the TB5R series; electrical compatibility is maintained through package and pin-count equivalence.

Packaging Considerations

Tube packaging (PBF suffix) is suitable for manual assembly and lower-volume applications. Tape & Reel packaging (TRPBF or DWR suffix) is optimized for automated pick-and-place assembly and higher-volume production environments.

Frequently Asked Questions (FAQ)

Q: Can LTC488CSW#PBF directly replace SP488CT-L/TR in existing designs?

A: Yes. The LTC488CSW#PBF maintains identical supply voltage range (4.75V to 5.25V), operating temperature range (0°C to 70°C), RS422/RS485 protocol support, 0/4 receiver configuration, and 16-SOIC package geometry. Both are surface-mount components with equivalent electrical performance within specified parameters.

Q: What is the difference between LTC488CSW and LTC488ISW variants?

A: The primary difference is operating temperature range. LTC488CSW operates from 0°C to 70°C, matching the original SP488CT-L/TR specification. LTC488ISW extends the range to -40°C to 85°C, providing enhanced thermal performance for demanding environments. Both maintain identical supply voltage and protocol specifications.

Q: Are TB5R series parts compatible with SP488CT-L/TR?

A: TB5R series receivers are mechanically and electrically compatible through 16-SOIC package equivalence and 0/4 receiver configuration. Supply voltage tolerance is broader (4.5V to 5.5V vs. 4.75V to 5.25V), and operating temperature range is extended (-40°C to 85°C). Protocol specification is not provided for TB5R parts; compatibility should be confirmed against specific application requirements.

Q: What does MSL rating mean for component selection?

A: Moisture Sensitivity Level (MSL) indicates the component's sensitivity to moisture absorption during storage and handling. MSL 1 (unlimited shelf life) provides greater flexibility in inventory management compared to MSL 3 (168-hour limit). All substitute parts carry MSL 1 or MSL 2 ratings, improving supply chain handling compared to the original SP488CT-L/TR (MSL 3).

Q: Should I choose Tube or Tape & Reel packaging?

A: Packaging format depends on assembly method. Tube packaging is appropriate for manual assembly, prototyping, and low-volume production. Tape & Reel packaging is required for automated assembly equipment and high-volume manufacturing. Electrical performance is identical between formats; selection is driven by production process requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, meeting current environmental and hazardous substance restrictions. The original SP488CT-L/TR product status is obsolete and does not carry ROHS3 certification.