FIN1047MX LVDS Driver Equivalent & Substitute Parts

Part Overview

The FIN1047MX is a 4/0 LVDS driver interface IC manufactured by onsemi, housed in a 16-SOIC surface mount package. This active product operates at 400 Mbps data rate with 3V to 3.6V supply voltage and supports operating temperatures from -40°C to 85°C. The FIN1047MX is ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level), making it suitable for industrial and commercial applications requiring LVDS signal transmission.

Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when alternative packaging formats are required for manufacturing optimization. The following equivalent parts maintain electrical and mechanical compatibility while offering different packaging options or enhanced performance characteristics.

Substiute Parts

FIN1047MX

onsemiIn Stock: 3114FIN1047MX Datasheet

Current PartRFQ

SN65LVDS047D

Texas InstrumentsIn Stock: 1527SN65LVDS047D Datasheet

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SN65LVDS047DG4

Texas InstrumentsIn Stock: 1187SN65LVDS047DG4 Datasheet

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SN65LVDS047DR

Texas InstrumentsIn Stock: 3456SN65LVDS047DR Datasheet

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SN65LVDS391D

Texas InstrumentsIn Stock: 3374SN65LVDS391D Datasheet

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SN65MLVD047AD

Texas InstrumentsIn Stock: 2331SN65MLVD047AD Datasheet

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SN65MLVD047ADR

Texas InstrumentsIn Stock: 2762SN65MLVD047ADR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FIN1047MX is determined by the following critical parameters:

Primary Compatibility Criteria:

• Protocol: LVDS (standard point-to-point)
• Number of Drivers/Receivers: 4/0 configuration
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Voltage - Supply: 3V ~ 3.6V
• Data Rate: 400 Mbps minimum
• RoHS Status: ROHS3 Compliant

Substitute Categories:

Category A - Direct Equivalents (400 Mbps LVDS): Parts maintaining identical electrical specifications and LVDS point-to-point protocol. These include SN65LVDS047D, SN65LVDS047DG4, and SN65LVDS047DR from Texas Instruments. Packaging format varies (Tube, Tape & Reel) but electrical performance remains equivalent.

Category B - Enhanced Performance (630 Mbps LVDS): SN65LVDS391D operates at 630 Mbps, exceeding the 400 Mbps requirement while maintaining all other electrical and mechanical specifications. This part provides backward compatibility with superior data rate capability.

Category C - Multipoint LVDS (200 Mbps): SN65MLVD047AD and SN65MLVD047ADR implement LVDS Multipoint protocol at 200 Mbps. These parts are functionally distinct due to protocol differences and reduced data rate, suitable only for applications not requiring point-to-point LVDS performance.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

SN65LVDS047D and SN65LVDS047DR are direct electrical equivalents to the FIN1047MX. Both are manufactured by Texas Instruments, maintain 400 Mbps LVDS performance, and are ROHS3 compliant. Selection between these two depends on packaging requirements: SN65LVDS047D is supplied in Tube format, while SN65LVDS047DR is supplied in Tape & Reel format for automated assembly. Both parts are currently active products with established supply availability.

SN65LVDS047DG4 shares identical electrical specifications but is discontinued at DiGi Electronics, limiting its suitability for new designs requiring long-term component availability.

For Enhanced Performance Applications:

SN65LVDS391D operates at 630 Mbps, exceeding the FIN1047MX specification while maintaining backward compatibility with 400 Mbps system requirements. This part is suitable for applications where future bandwidth expansion is anticipated. The higher data rate does not compromise compatibility with 400 Mbps LVDS implementations.

For Multipoint LVDS Applications:

SN65MLVD047AD and SN65MLVD047ADR implement LVDS Multipoint protocol at 200 Mbps. These parts are not interchangeable with the FIN1047MX for point-to-point LVDS applications due to protocol differences and reduced data rate. Selection between AD (Tube) and ADR (Tape & Reel) variants follows the same packaging criteria as the standard LVDS options.

All recommended substitutes maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can SN65LVDS047D directly replace FIN1047MX in existing designs?

A: Yes. SN65LVDS047D is electrically equivalent to FIN1047MX, maintaining identical LVDS protocol, 4/0 driver/receiver configuration, 400 Mbps data rate, and 3V to 3.6V supply voltage. Both are housed in 16-SOIC packages with identical pinouts. The primary difference is packaging format (Tube vs. Cut Tape & Digi-Reel®).

Q: What is the difference between SN65LVDS047D and SN65LVDS047DR?

A: Both parts are electrically identical. SN65LVDS047D is supplied in Tube packaging, while SN65LVDS047DR is supplied in Tape & Reel format. Selection depends on assembly process requirements: Tube format is suitable for manual or low-volume assembly, while Tape & Reel is optimized for automated pick-and-place equipment.

Q: Is SN65LVDS391D compatible with FIN1047MX applications?

A: SN65LVDS391D is backward compatible with FIN1047MX applications. It operates at 630 Mbps compared to the FIN1047MX's 400 Mbps, but maintains all other electrical specifications including supply voltage, package, and LVDS protocol. Systems designed for 400 Mbps operation will function correctly with SN65LVDS391D without modification.

Q: Why are SN65MLVD047AD and SN65MLVD047ADR listed as substitutes if they operate at 200 Mbps?

A: These parts are listed as available alternatives but are not direct substitutes due to protocol differences (LVDS Multipoint vs. standard LVDS) and reduced data rate (200 Mbps vs. 400 Mbps). They are suitable only for applications specifically designed for Multipoint LVDS operation at lower data rates.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating, matching the FIN1047MX specifications for environmental and regulatory requirements.

Q: What should I consider when selecting between substitute parts?

A: Primary selection criteria are: (1) Protocol requirement (standard LVDS vs. Multipoint LVDS), (2) Data rate requirement (200 Mbps, 400 Mbps, or 630 Mbps), (3) Packaging format (Tube, Tape & Reel, or Cut Tape), and (4) Product status (Active vs. Discontinued). Verify that the selected part meets your application's minimum data rate and protocol requirements.