FIN1049MTC LVDS Transceiver Equivalent & Substitute Parts

Part Overview

The FIN1049MTC is a 2/2 full-duplex LVDS transceiver manufactured by onsemi, housed in a 16-TSSOP surface mount package. This interface IC operates at 400 Mbps data rate with a 3V to 3.6V supply voltage range and supports operating temperatures from -40°C to 85°C. The part is classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

FIN1049MTC

onsemiIn Stock: 2863FIN1049MTC Datasheet

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DS90LV049QMT/NOPB

Texas InstrumentsIn Stock: 2677DS90LV049QMT/NOPB Datasheet

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DS90LV049QMTX/NOPB

Texas InstrumentsIn Stock: 6126DS90LV049QMTX/NOPB Datasheet

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DS90LV049TMT/NOPB

Texas InstrumentsIn Stock: 17846DS90LV049TMT/NOPB Datasheet

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DS90LV049TMTX/NOPB

Texas InstrumentsIn Stock: 44710DS90LV049TMTX/NOPB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the FIN1049MTC is determined by strict electrical and mechanical compatibility criteria. All substitute parts must maintain the following parameters:

• Protocol: LVDS
• Number of Drivers/Receivers: 2/2 configuration
• Duplex: Full
• Data Rate: 400 Mbps
• Voltage Supply: 3V ~ 3.6V
• Package / Case: 16-TSSOP (0.173", 4.40mm Width)
• Mounting Type: Surface Mount
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute parts listed are all Texas Instruments DS90LV049 variants, which share the identical electrical specifications and physical package footprint. Differences exist only in packaging format (Tube, Tape & Reel, Cut Tape & Digi-Reel), operating temperature range, and product status (all substitutes are Active). These variants are pin-compatible and functionally equivalent for the FIN1049MTC application.

Parameter Comparison

Engineering Selection Recommendations

All four Texas Instruments DS90LV049 variants are functionally equivalent substitutes for the FIN1049MTC. Selection among these variants depends on application requirements and procurement constraints:

DS90LV049QMT/NOPB and DS90LV049QMTX/NOPB are qualified to automotive grade (AEC-Q100) with extended operating temperature range (-40°C to 125°C). These variants are suitable for automotive and industrial applications requiring higher temperature margins. DS90LV049QMTX/NOPB is supplied in Tape & Reel format with highest inventory availability (6,107 pcs).

DS90LV049TMT/NOPB and DS90LV049TMTX/NOPB maintain the original -40°C to 85°C operating temperature range of the FIN1049MTC. DS90LV049TMTX/NOPB offers the largest inventory (44,642 pcs) and is available in Cut Tape & Digi-Reel format for flexible procurement quantities.

All substitutes are ROHS3 compliant and carry Active product status, ensuring long-term availability and supply chain continuity compared to the obsolete FIN1049MTC.

Frequently Asked Questions (FAQ)

Q: Are all DS90LV049 variants pin-compatible with the FIN1049MTC?

A: Yes. All substitute parts use the identical 16-TSSOP package with matching pinout. Direct board-level substitution is possible without layout modifications.

Q: What is the difference between the automotive-grade (QMT/QMTX) and standard (TMT/TMTX) variants?

A: The QMT/QMTX variants are qualified to AEC-Q100 automotive standards and support extended operating temperature range (-40°C to 125°C). The TMT/TMTX variants operate within the original -40°C to 85°C range. Both meet the electrical specifications of the FIN1049MTC.

Q: Which packaging format should I select?

A: Packaging format (Tube, Tape & Reel, Cut Tape & Digi-Reel) affects procurement and handling but does not impact electrical performance. Select based on production volume and assembly line requirements. Tape & Reel and Cut Tape formats are standard for high-volume manufacturing.

Q: Is the FIN1049MTC still available?

A: The FIN1049MTC is classified as obsolete. Texas Instruments DS90LV049 variants are all Active products with confirmed inventory availability, making them the recommended path for new designs and ongoing production.

Q: Do the substitute parts require any design changes?

A: No design changes are required. The substitute parts maintain identical electrical specifications (3V to 3.6V supply, 400 Mbps data rate, 2/2 full-duplex LVDS configuration) and physical package dimensions. Existing PCB layouts and firmware are compatible.