FIN1218MTDX Equivalent & Substitute Parts

Part Overview

The FIN1218MTDX is a 1.785Gbps deserializer interface IC manufactured by onsemi, designed for LVDS-to-LVTTL signal conversion with 3 inputs and 21 outputs in a 48-TSSOP package. The device operates across a 3V to 3.6V supply range and supports industrial temperature specifications from -40°C to 85°C. As an obsolete product, equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for ongoing production and field support applications.

Substiute Parts

FIN1218MTDX

onsemiIn Stock: 1259FIN1218MTDX Datasheet

Current PartRFQ

FIN1216MTDX

onsemiIn Stock: 16380FIN1216MTDX Datasheet

Parametric EquivalentRFQ

DS90CR216AMTDX/NOPB

Texas InstrumentsIn Stock: 760DS90CR216AMTDX/NOPB Datasheet

SimilarRFQ

DS90CR218AMTD/NOPB

Texas InstrumentsIn Stock: 1718DS90CR218AMTD/NOPB Datasheet

SimilarRFQ

DS90CR218AMTDX/NOPB

Texas InstrumentsIn Stock: 2217DS90CR218AMTDX/NOPB Datasheet

SimilarRFQ

SN65LVDS96DGGR

Texas InstrumentsIn Stock: 2488SN65LVDS96DGGR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FIN1218MTDX are classified based on strict electrical and mechanical parameter alignment:

Parametric Equivalents maintain identical or functionally equivalent specifications across all critical parameters: data rate, input/output configuration, voltage supply range, operating temperature, package type, and pin count. These parts are direct functional replacements with no design modifications required.

Similar Parts share the same package, voltage supply, mounting type, and pin count but may differ in data rate or specific interface characteristics. These parts require design verification to confirm compatibility with system timing and signal integrity requirements.

The substitution logic is determined by the following key parameters:

• Data Rate (1.785Gbps or compatible)
• Input Type (LVDS)
• Output Type (LVTTL)
• Number of Inputs (3)
• Number of Outputs (21)
• Voltage - Supply (3V ~ 3.6V)
• Operating Temperature (-40°C ~ 85°C)
• Package / Case (48-TFSOP)
• Mounting Type (Surface Mount)

Parameter Comparison

Engineering Selection Recommendations

FIN1216MTDX is the primary parametric equivalent, offering identical electrical specifications (1.785Gbps data rate, 3 inputs, 21 outputs, LVDS-to-LVTTL conversion) and package configuration. This onsemi part maintains active product status with ROHS3 compliance and improved moisture sensitivity rating (MSL 2, 1 Year versus MSL 1 Unlimited), making it the preferred direct replacement for the obsolete FIN1218MTDX.

DS90CR218AMTDX/NOPB and DS90CR218AMTD/NOPB are Texas Instruments alternatives with identical package and voltage specifications. Both maintain active product status and ROHS3 compliance. Selection between these variants depends on packaging requirements: DS90CR218AMTDX/NOPB is supplied in Tape & Reel format, while DS90CR218AMTD/NOPB is supplied in Tube format.

DS90CR216AMTDX/NOPB is a Texas Instruments interface IC in the same 48-TFSOP package with matching voltage supply and mounting specifications. This part maintains active status and ROHS3 compliance but requires design verification due to unspecified data rate and interface characteristics.

SN65LVDS96DGGR is a parametric equivalent from Texas Instruments with specified 1.428Gbps data rate, LVDS input, LVTTL output, 3 inputs, and 21 outputs. This part operates within the same voltage and temperature ranges and maintains active product status with ROHS3 compliance. The lower data rate (1.428Gbps versus 1.785Gbps) requires system timing analysis to confirm compatibility with existing designs.

Frequently Asked Questions (FAQ)

Q: Can FIN1216MTDX directly replace FIN1218MTDX without PCB modifications?

A: Yes. FIN1216MTDX is a parametric equivalent with identical electrical specifications (1.785Gbps data rate, 3 LVDS inputs, 21 LVTTL outputs), voltage supply range (3V ~ 3.6V), operating temperature (-40°C ~ 85°C), and 48-TFSOP package configuration. No PCB layout changes are required.

Q: What is the difference between DS90CR218AMTDX/NOPB and DS90CR218AMTD/NOPB?

A: Both parts are functionally identical Texas Instruments interface ICs in 48-TFSOP packages with 3V ~ 3.6V supply specifications. The primary difference is packaging format: DS90CR218AMTDX/NOPB is supplied in Tape & Reel (TR) format for automated assembly, while DS90CR218AMTD/NOPB is supplied in Tube format for manual handling or lower-volume applications.

Q: Is SN65LVDS96DGGR compatible with designs using FIN1218MTDX?

A: SN65LVDS96DGGR shares the same input/output configuration (3 LVDS inputs, 21 LVTTL outputs), voltage supply range, operating temperature, and package type. However, the specified data rate is 1.428Gbps compared to 1.785Gbps for FIN1218MTDX. System timing analysis is required to confirm compatibility with existing signal timing and bandwidth requirements.

Q: What compliance certifications apply to these substitute parts?

A: All active substitute parts (FIN1216MTDX, DS90CR216AMTDX/NOPB, DS90CR218AMTD/NOPB, DS90CR218AMTDX/NOPB, and SN65LVDS96DGGR) are ROHS3 compliant and REACH unaffected. All parts maintain the same HTSUS classification as the original FIN1218MTDX.

Q: Are there inventory considerations when selecting a substitute?

A: Yes. FIN1216MTDX has the highest inventory availability (16,279 pcs), followed by DS90CR218AMTDX/NOPB (2,118 pcs), SN65LVDS96DGGR (2,400 pcs), DS90CR218AMTD/NOPB (1,616 pcs), and DS90CR216AMTDX/NOPB (667 pcs). Inventory levels should be considered alongside technical compatibility for procurement planning.