LFEC10E-4FN256C Equivalent & Substitute Parts

Part Overview

The LFEC10E-4FN256C is an EC series Field Programmable Gate Array (FPGA) manufactured by Lattice Semiconductor Corporation. This device features 10,200 logic elements, 282,624 total RAM bits, and 195 I/O pins in a 256-BGA package. The product is currently obsolete, making identification of compatible substitute components essential for ongoing system support, design updates, and procurement planning.

Substiute Parts

LFEC10E-4FN256C

Lattice Semiconductor CorporationIn Stock: 1091LFEC10E-4FN256C Datasheet

Current PartRFQ

LFE2-12E-5FN256C

Lattice Semiconductor CorporationIn Stock: 5064LFE2-12E-5FN256C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LFEC10E-4FN256C is determined by the following critical parameters:

• Package Compatibility: Both main and substitute parts must use 256-BGA (17x17) surface mount packaging to ensure PCB layout and assembly process compatibility.
• Voltage Supply Range: Substitute parts must operate within the 1.14V ~ 1.26V supply voltage window to maintain power delivery compatibility.
• Operating Temperature Range: Substitute parts must support the 0°C ~ 85°C operating temperature specification.
• I/O Pin Count: The substitute part must provide sufficient I/O pins (minimum 193 pins) to accommodate design requirements.
• Logic Element Capacity: The substitute part must provide equal or greater logic element count to support functional requirements.
• RAM Capacity: The substitute part must provide equal or greater total RAM bits to support memory requirements.

The LFE2-12E-5FN256C meets all substitution criteria as an active product from Lattice Semiconductor Corporation, offering enhanced logic capacity and maintained electrical specifications within the same package footprint.

Parameter Comparison

Engineering Selection Recommendations

The LFE2-12E-5FN256C is the qualified substitute for the obsolete LFEC10E-4FN256C based on the following factors:

• Active Product Status: The LFE2-12E-5FN256C is an active product with confirmed availability (4,982 units in stock), ensuring long-term procurement viability compared to the obsolete LFEC10E-4FN256C.
• Regulatory Compliance: Both parts maintain identical REACH and ECCN classifications (REACH Unaffected, EAR99), ensuring no change in export or environmental compliance requirements.
• Electrical Compatibility: Identical voltage supply range (1.14V ~ 1.26V) and operating temperature range (0°C ~ 85°C) eliminate power delivery and thermal management modifications.
• Package Footprint Compatibility: Both parts use 256-BGA (17x17) surface mount packaging, allowing direct PCB layout reuse without redesign.
• Enhanced Capacity: The LFE2-12E-5FN256C provides 12,000 logic elements versus 10,200 in the original part, offering additional design margin and functional headroom.

Frequently Asked Questions (FAQ)

Q: Can the LFE2-12E-5FN256C be used as a direct replacement for the LFEC10E-4FN256C?

A: Yes, the LFE2-12E-5FN256C is a qualified substitute. Both parts share identical package dimensions (256-BGA 17x17), voltage supply range (1.14V ~ 1.26V), operating temperature range (0°C ~ 85°C), and moisture sensitivity level (MSL 3). The substitute part provides equal or greater functional capacity across all critical parameters.

Q: What are the differences in I/O pin count between these parts?

A: The LFEC10E-4FN256C provides 195 I/O pins, while the LFE2-12E-5FN256C provides 193 I/O pins. This two-pin difference requires verification that all design I/O connections can be accommodated within the available pins on the substitute part.

Q: How do the logic element counts compare?

A: The LFEC10E-4FN256C contains 10,200 logic elements, while the LFE2-12E-5FN256C contains 12,000 logic elements. The substitute part provides 1,800 additional logic elements, offering increased design capacity and functional flexibility.

Q: Are there differences in RAM capacity?

A: Yes. The LFEC10E-4FN256C provides 282,624 total RAM bits, while the LFE2-12E-5FN256C provides 226,304 total RAM bits. Designs requiring the full RAM capacity of the original part must be evaluated to confirm compatibility with the reduced RAM specification of the substitute.

Q: What is the product status difference?

A: The LFEC10E-4FN256C is obsolete, meaning it is no longer manufactured or supported. The LFE2-12E-5FN256C is an active product with ongoing manufacturing and support, ensuring availability for current and future procurement needs.

Q: Are there any compliance or regulatory differences?

A: No. Both parts maintain identical REACH status (REACH Unaffected) and ECCN classification (EAR99), eliminating any changes to export control or environmental compliance requirements.