LFXP6C-3T144I Equivalent & Substitute Parts

Part Overview

The LFXP6C-3T144I is an XP series Field Programmable Gate Array (FPGA) manufactured by Lattice Semiconductor Corporation, featuring 100 I/O pins in a 144-LQFP package. This device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and production requirements. The part operates across a supply voltage range of 1.71V to 3.465V with 6000 logic elements and 73728 total RAM bits.

Substiute Parts

LFXP6C-3T144I

Lattice Semiconductor CorporationIn Stock: 926LFXP6C-3T144I Datasheet

Current PartRFQ

LCMXO2-7000HC-4TG144I

Lattice Semiconductor CorporationIn Stock: 18239LCMXO2-7000HC-4TG144I Datasheet

MFR RecommendedRFQ

LFXP2-8E-5TN144I

Lattice Semiconductor CorporationIn Stock: 3141LFXP2-8E-5TN144I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LFXP6C-3T144I is determined by the following critical parameters:

• Package compatibility: 144-LQFP form factor (20x20mm)
• I/O pin count: 100 pins minimum
• Logic element capacity: 6000 cells or greater
• RAM capacity: 73728 bits or greater
• Operating temperature range: -40°C to 100°C (TJ)
• Mounting type: Surface Mount
• Manufacturer: Lattice Semiconductor Corporation

Two substitute parts meet these criteria and are listed as manufacturer-recommended alternatives.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts satisfy the core package and I/O requirements for direct replacement of the LFXP6C-3T144I.

LFXP2-8E-5TN144I provides an active-status alternative within the XP product family lineage. This part maintains the 100 I/O pin count and exceeds the logic element and RAM specifications. However, the supply voltage range (1.14V ~ 1.26V) differs significantly from the original part and requires verification of power supply compatibility in existing designs.

LCMXO2-7000HC-4TG144I represents a cross-family substitute from the MachXO2 series. This part offers increased I/O capacity (114 pins), enhanced logic elements (6864), and substantially greater RAM (245760 bits). The supply voltage range (2.375V ~ 3.465V) overlaps with the original part's upper range. Both substitute parts carry ROHS3 compliance, addressing regulatory requirements not met by the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can the LFXP2-8E-5TN144I be used as a direct replacement for the LFXP6C-3T144I?

A: The LFXP2-8E-5TN144I shares the same 100 I/O pin count and 144-LQFP package. However, the supply voltage specification (1.14V ~ 1.26V) is substantially different from the original part (1.71V ~ 3.465V). Power supply compatibility must be verified before implementation.

Q: What are the advantages of the LCMXO2-7000HC-4TG144I as a substitute?

A: The LCMXO2-7000HC-4TG144I provides increased I/O capacity (114 versus 100 pins), greater logic element count (6864 versus 6000), and significantly higher RAM capacity (245760 versus 73728 bits). The supply voltage range partially overlaps with the original part, and the device carries ROHS3 compliance.

Q: Are both substitute parts available in the same package?

A: Yes. Both substitute parts use the 144-LQFP (20x20mm) package with surface mount configuration, maintaining PCB layout compatibility with the original LFXP6C-3T144I.

Q: What is the impact of the increased I/O count on the LCMXO2-7000HC-4TG144I?

A: The LCMXO2-7000HC-4TG144I provides 114 I/O pins within the same 144-pin package footprint. Designs requiring only 100 I/O pins can utilize this part without modification, while designs requiring additional I/O capacity can leverage the extra pins.

Q: How do the RAM specifications compare?

A: The LFXP6C-3T144I contains 73728 bits of RAM. The LFXP2-8E-5TN144I provides 226304 bits, and the LCMXO2-7000HC-4TG144I provides 245760 bits. Both substitutes exceed the original specification, supporting designs with increased memory requirements.

Q: What compliance considerations apply to these substitutes?

A: The original LFXP6C-3T144I is RoHS non-compliant. Both substitute parts carry ROHS3 compliance, meeting current regulatory requirements for new designs and production.