FIN1217MTD Equivalent & Substitute Parts

Part Overview

The FIN1217MTD is a serializer/deserializer interface IC manufactured by onsemi, designed to convert 21 LVTTL inputs to 3 LVDS outputs at 1.785Gbps data rate in a 48-TSSOP package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, design updates, and procurement planning. Substitute parts must maintain electrical compatibility across supply voltage, data rate, input/output specifications, and physical packaging to ensure direct replacement capability.

Substiute Parts

FIN1217MTD

onsemiIn Stock: 2001FIN1217MTD Datasheet

Current PartRFQ

DS90CR217MTDX/NOPB

Texas InstrumentsIn Stock: 3139DS90CR217MTDX/NOPB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FIN1217MTD is determined by strict alignment of the following critical parameters:

• Package Compatibility: 48-TFSOP (0.240", 6.10mm Width) form factor and surface mount technology
• Electrical Interface: LVTTL input and LVDS output signal types
• Data Rate: 1.785Gbps serialization capability
• Channel Configuration: 21 inputs and 3 outputs
• Supply Voltage Range: 3V ~ 3.6V operation
• Operating Temperature Range: -40°C ~ 85°C (TA)

The DS90CR217MTDX/NOPB from Texas Instruments meets all specified electrical and mechanical parameters, qualifying it as a direct functional equivalent. Both parts operate within identical voltage and temperature ranges, utilize the same package footprint, and support equivalent data rates and channel configurations required for serializer/deserializer applications.

Parameter Comparison

Engineering Selection Recommendations

The DS90CR217MTDX/NOPB is qualified as a direct substitute for the FIN1217MTD based on matching electrical specifications, identical package geometry, and equivalent functional performance. The substitute part carries active product status from Texas Instruments, ensuring ongoing availability and supply chain continuity compared to the obsolete onsemi component.

The substitute part maintains REACH compliance and carries RoHS3 certification, meeting current regulatory requirements. The MSL rating difference (MSL 2 versus MSL 1) reflects standard industry variation and does not impact functional substitution; MSL 2 (1 Year) remains suitable for standard manufacturing and storage conditions.

Both parts are surface-mount components in 48-TSSOP packaging, requiring identical PCB footprints and assembly processes. No design modifications or layout adjustments are necessary for component replacement.

Frequently Asked Questions (FAQ)

Q: Can the DS90CR217MTDX/NOPB directly replace the FIN1217MTD without PCB modifications?

A: Yes. Both components use identical 48-TFSOP (0.240", 6.10mm Width) packaging and surface-mount technology. The PCB footprint, pin assignment, and electrical interface are compatible, requiring no layout changes.

Q: Are the electrical specifications identical between these parts?

A: The critical electrical parameters match: 3V ~ 3.6V supply voltage, -40°C ~ 85°C operating temperature range, LVTTL input type, LVDS output type, and 1.785Gbps data rate. Both support 21 inputs and 3 outputs for serializer applications.

Q: What is the significance of the different MSL ratings?

A: The FIN1217MTD carries MSL 1 (Unlimited moisture sensitivity), while the DS90CR217MTDX/NOPB carries MSL 2 (1 Year). MSL 2 indicates the component must be used within one year of packaging opening under controlled humidity conditions. This is standard industry practice and does not affect functional performance or substitution suitability.

Q: Why is the FIN1217MTD listed as obsolete?

A: Obsolete status indicates the onsemi part is no longer in active production. The DS90CR217MTDX/NOPB maintains active status from Texas Instruments, providing long-term availability and supply security for new designs and system updates.

Q: Are there compliance differences between the two parts?

A: Both parts are REACH Unaffected. The substitute carries RoHS3 compliance certification, meeting current environmental and regulatory standards. The original part's compliance status reflects its obsolete classification.

Q: What packaging format is available for the substitute part?

A: The DS90CR217MTDX/NOPB is supplied in Tape & Reel (TR) format, standard for high-volume manufacturing and automated assembly processes.