LFEC6E-4FN484C Equivalent & Substitute Parts

Part Overview

The LFEC6E-4FN484C is an EC series Field Programmable Gate Array (FPGA) manufactured by Lattice Semiconductor Corporation. This device features 224 I/O pins, 6100 logic elements, and 94208 total RAM bits in a 484-BBGA package. The product is currently obsolete, which necessitates identification of functionally compatible alternatives for ongoing system support and new designs requiring equivalent or enhanced capabilities.

Substiute Parts

LFEC6E-4FN484C

Lattice Semiconductor CorporationIn Stock: 1200LFEC6E-4FN484C Datasheet

Current PartRFQ

LFE2-12E-5FN484C

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The LFE2-12E-5FN484C qualifies as a manufacturer-recommended substitute based on the following critical parameters:

Matching Parameters:

• Package / Case: 484-BBGA (identical physical footprint)
• Supplier Device Package: 484-FPBGA (23x23) (identical dimensions)
• Voltage - Supply: 1.14V ~ 1.26V (identical operating voltage range)
• Mounting Type: Surface Mount (identical mounting method)
• Operating Temperature: 0°C ~ 85°C (TJ) (identical thermal range)
• Moisture Sensitivity Level (MSL): 3 (168 Hours) (identical handling requirements)

Enhanced Capabilities: The LFE2-12E-5FN484C provides increased logic density (12000 logic elements versus 6100), expanded I/O capacity (297 pins versus 224), and greater RAM resources (226304 bits versus 94208 bits), making it suitable for designs requiring equivalent or expanded functionality within the same physical package constraint.

Parameter Comparison

Engineering Selection Recommendations

The LFE2-12E-5FN484C is the manufacturer-recommended substitute for the obsolete LFEC6E-4FN484C. Selection of this alternative is justified by:

• Product Status Alignment: The substitute is Active, ensuring continued availability and manufacturing support, whereas the original part is Obsolete.
• Regulatory Compliance: The LFE2-12E-5FN484C carries ROHS3 compliance certification, meeting current environmental and regulatory requirements.
• Physical Compatibility: Identical package footprint (484-BBGA, 23x23mm) and mounting type enable direct PCB layout reuse without redesign.
• Electrical Compatibility: Matching supply voltage range (1.14V ~ 1.26V) and operating temperature range (0°C ~ 85°C) ensure compatibility with existing power delivery and thermal management infrastructure.
• Handling Requirements: Identical MSL rating (3, 168 Hours) maintains consistency in storage, handling, and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the LFE2-12E-5FN484C be used as a direct replacement for the LFEC6E-4FN484C?

A: Yes, from a physical and electrical standpoint. Both devices share identical package dimensions (484-FPBGA, 23x23mm), supply voltage range (1.14V ~ 1.26V), operating temperature range (0°C ~ 85°C), and MSL rating (3). However, design validation is required to confirm that the increased logic element count, I/O capacity, and RAM do not introduce unintended functional changes in your specific application.

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

A: The LFE2-12E-5FN484C offers double the logic elements (12000 vs. 6100), 2.4x the RAM capacity (226304 vs. 94208 bits), and 73 additional I/O pins (297 vs. 224). The substitute belongs to the ECP2 series, while the original is EC series. The substitute is Active, whereas the original is Obsolete.

Q: Are there any compatibility concerns with the increased I/O count?

A: The LFE2-12E-5FN484C provides 297 I/O pins compared to 224 on the original part. Designs utilizing only the original 224 pins will function without modification. Additional pins remain available for future expansion or can be left unconnected.

Q: Does the package footprint remain identical?

A: Yes. Both parts use the 484-BBGA package with identical 23x23mm dimensions. PCB layouts, solder paste stencils, and assembly processes require no modification.

Q: What certifications apply to the substitute part?

A: The LFE2-12E-5FN484C is ROHS3 compliant and carries REACH Unaffected status, meeting current environmental and regulatory standards for electronic components.