LFEC6E-3FN484C Equivalent & Substitute Parts

Part Overview

The LFEC6E-3FN484C is a Lattice Semiconductor EC series Field Programmable Gate Array (FPGA) featuring 224 I/O pins and 6100 logic elements in a 484-BBGA package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

The primary reason for identifying substitute parts is the discontinued status of the EC series. Active production alternatives within the Lattice FPGA portfolio provide equivalent or enhanced functionality while maintaining compatibility with the same package form factor and electrical specifications.

Substiute Parts

LFEC6E-3FN484C

Lattice SemiconductorIn Stock: 798LFEC6E-3FN484C Datasheet

Current PartRFQ

LFE2-12E-5FN484C

Lattice SemiconductorIn Stock: 2188LFE2-12E-5FN484C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LFEC6E-3FN484C is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 484-BBGA package form factor with identical 23x23mm dimensions to ensure PCB footprint compatibility without redesign.

Electrical Specifications: Supply voltage range (1.14V ~ 1.26V) and operating temperature range (0°C ~ 85°C) must be maintained or exceeded to ensure functional equivalence in the target application.

I/O Pin Count: The substitute part must provide a minimum of 224 I/O pins to support existing circuit designs without signal routing modifications.

Logic Capacity: The substitute part must provide sufficient logic elements and RAM bits to accommodate the original design's functional requirements.

Manufacturer Consistency: Lattice Semiconductor maintains architectural compatibility across its FPGA series, enabling direct substitution within the same package class.

The LFE2-12E-5FN484C meets all substitution criteria while offering enhanced logic capacity and active product status.

Parameter Comparison

Engineering Selection Recommendations

The LFE2-12E-5FN484C is the designated manufacturer-recommended substitute for the LFEC6E-3FN484C. This substitution is supported by:

Product Status: The LFE2-12E-5FN484C maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete EC series.

Regulatory Compliance: Both devices share identical REACH and ECCN classifications, maintaining compliance with export control and environmental regulations without modification to procurement or documentation procedures.

Package and Electrical Equivalence: Identical 484-BBGA package dimensions, supply voltage range, and operating temperature specifications enable direct substitution without PCB redesign or thermal management modifications.

Enhanced Capacity: The LFE2-12E-5FN484C provides doubled logic element count (12000 vs. 6100) and expanded RAM (226304 vs. 94208 bits), offering design margin and future functionality expansion within the same physical footprint.

Frequently Asked Questions (FAQ)

Q: Can the LFE2-12E-5FN484C be used as a direct replacement for the LFEC6E-3FN484C without PCB modifications?

A: Yes. Both devices use the 484-BBGA package with identical 23x23mm dimensions and pin assignments for the 224 common I/O pins. No PCB layout changes are required for mechanical or electrical compatibility.

Q: What are the key differences between these two parts?

A: The LFE2-12E-5FN484C offers increased logic capacity (12000 vs. 6100 logic elements), expanded embedded RAM (226304 vs. 94208 bits), and additional I/O pins (297 vs. 224). Both maintain identical supply voltage, operating temperature, and package specifications.

Q: Are the supply voltage and operating temperature ranges identical?

A: Yes. Both devices operate at 1.14V ~ 1.26V supply voltage and 0°C ~ 85°C junction temperature, ensuring thermal and power management compatibility in existing designs.

Q: Does the LFE2-12E-5FN484C have the same moisture sensitivity rating?

A: Yes. Both devices are rated MSL 3 (168 Hours), requiring identical handling, storage, and reflow procedures during assembly.

Q: What is the inventory status for the substitute part?

A: The LFE2-12E-5FN484C is available with 2115 pieces in stock as new original inventory, compared to 788 pieces for the obsolete LFEC6E-3FN484C.

Q: Are there any regulatory or compliance differences between these parts?

A: No. Both devices share identical REACH status (REACH Unaffected), ECCN classification (3A991D), and HTSUS code (8542.39.0001), maintaining consistent compliance documentation and export control requirements.