LFEC6E-4FN484I Equivalent & Substitute Parts

Part Overview

The LFEC6E-4FN484I is an EC series Field Programmable Gate Array (FPGA) manufactured by Lattice Semiconductor Corporation, featuring 224 I/O pins and 6100 logic elements in a 484-BBGA package. This device is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations where legacy compatibility is required.

Substiute Parts

LFEC6E-4FN484I

Lattice Semiconductor CorporationIn Stock: 1116LFEC6E-4FN484I Datasheet

Current PartRFQ

LFE2-12E-5FN484I

Lattice Semiconductor CorporationIn Stock: 1039LFE2-12E-5FN484I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LFEC6E-4FN484I is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 484-BBGA package with identical 23x23mm dimensions to ensure PCB footprint compatibility and mechanical fit.

Electrical Specifications: Supply voltage range (1.14V ~ 1.26V) and operating temperature range (-40°C ~ 100°C TJ) must be maintained to ensure functional compatibility within the target application environment.

I/O Pin Count: The substitute part must provide sufficient I/O pins to accommodate the design requirements. The main part provides 224 I/O pins; substitutes with equal or greater I/O capacity are acceptable.

Logic Capacity: The substitute must provide logic element count and RAM capacity equal to or exceeding the original part to support design implementation without functional degradation.

Manufacturer Continuity: Lattice Semiconductor Corporation maintains the EC and ECP2 series within compatible architectural frameworks, enabling direct substitution where electrical and mechanical parameters align.

Parameter Comparison

Engineering Selection Recommendations

The LFE2-12E-5FN484I is a direct substitute for the LFEC6E-4FN484I based on matching electrical specifications, identical package geometry, and compatible operating parameters. The substitute part offers increased logic capacity (12000 elements vs. 6100) and expanded RAM (226304 bits vs. 94208 bits), providing design headroom for complex implementations.

The LFE2-12E-5FN484I maintains active product status with Lattice Semiconductor Corporation, ensuring long-term availability and supply chain continuity. Both parts comply with identical regulatory frameworks (REACH Unaffected, ECCN 3A991D, HTSUS 8542.39.0001) and share equivalent moisture sensitivity classifications.

Selection of the LFE2-12E-5FN484I is appropriate for applications requiring the 484-BBGA form factor with 1.14V–1.26V supply voltage and -40°C to 100°C operating range. The enhanced logic and memory resources support design scalability without requiring PCB redesign or thermal management modifications.

Frequently Asked Questions (FAQ)

Q: Can the LFE2-12E-5FN484I replace the LFEC6E-4FN484I in existing designs?

A: Yes. Both parts share identical package geometry (484-FPBGA 23x23mm), supply voltage range (1.14V–1.26V), operating temperature range (-40°C to 100°C TJ), and mounting type (Surface Mount). PCB footprints are directly compatible without modification.

Q: What are the key differences between these parts?

A: The LFE2-12E-5FN484I provides double the logic element count (12000 vs. 6100) and significantly greater RAM capacity (226304 bits vs. 94208 bits). The substitute also offers 297 I/O pins compared to 224 on the original part. The LFE2-12E-5FN484I maintains active product status, whereas the LFEC6E-4FN484I is obsolete.

Q: Are there any compliance or regulatory differences?

A: No. Both parts share identical REACH status (REACH Unaffected), ECCN classification (3A991D), and HTSUS code (8542.39.0001). Moisture sensitivity levels are equivalent (MSL 3, 168 Hours).

Q: Does the increased I/O count on the substitute part affect compatibility?

A: No. The additional I/O pins (297 vs. 224) do not compromise compatibility. Unused pins can remain unconnected in the design. The identical package footprint ensures mechanical and electrical fit without modification.

Q: What is the inventory status for these parts?

A: The LFEC6E-4FN484I (obsolete) has 1038 pieces in stock. The LFE2-12E-5FN484I (active) has 1014 pieces in stock, with ongoing availability through Lattice Semiconductor Corporation's active product line.