LFECP10E-3FN256C Equivalent & Substitute Parts

Part Overview

The LFECP10E-3FN256C is an ECP Field Programmable Gate Array (FPGA) from Lattice Semiconductor Corporation, featuring 10,200 logic elements, 282,624 total RAM bits, and 195 I/O pins in a 256-BGA package. This device is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations. The ECP series has been superseded by newer FPGA architectures, requiring careful parameter matching to ensure functional equivalence in replacement scenarios.

Substiute Parts

LFECP10E-3FN256C

Lattice Semiconductor CorporationIn Stock: 1997LFECP10E-3FN256C 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 LFECP10E-3FN256C is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 256-BGA package format with identical 17x17 footprint dimensions to ensure PCB-level 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 guarantee functional operation within the original system design envelope.

Logic Capacity: The substitute part must provide logic element count and RAM bit capacity equal to or greater than the original 10,200 logic elements and 282,624 RAM bits to support existing firmware implementations.

I/O Pin Count: The substitute must provide a minimum of 195 I/O pins to maintain signal connectivity without requiring board-level modifications.

Moisture Sensitivity: MSL rating of 3 (168 Hours) establishes handling and storage requirements that must be matched or improved in the substitute part.

The LFE2-12E-5FN256C meets these substitution criteria as an active product from the same manufacturer with compatible electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The LFE2-12E-5FN256C is a valid substitute for the obsolete LFECP10E-3FN256C based on matching package geometry, electrical specifications, and operating conditions. The substitute part offers increased logic element capacity (12,000 vs. 10,200), providing design margin for future enhancements.

Considerations for substitution:

The LFE2-12E-5FN256C provides 193 I/O pins compared to the original 195 pins. Design verification is required to confirm that the two fewer I/O pins do not impact system functionality or signal routing.

The substitute part contains 226,304 RAM bits versus 282,624 bits in the original device. Applications requiring the full original RAM capacity must be evaluated to determine if the reduced memory allocation affects firmware operation.

The LFE2-12E-5FN256C is an active product with current manufacturer support, ensuring availability and long-term supply chain stability compared to the obsolete LFECP10E-3FN256C.

Both parts maintain identical supply voltage ranges, operating temperature specifications, and moisture sensitivity ratings, eliminating the need for power supply or thermal management redesign.

Compliance certifications (REACH, ECCN) are equivalent between the two parts, supporting regulatory and export requirements without modification.

Frequently Asked Questions (FAQ)

Q: Can the LFE2-12E-5FN256C directly replace the LFECP10E-3FN256C without PCB modifications?

A: The 256-FPBGA (17x17) package footprint is identical, allowing direct PCB-level replacement without layout changes. However, the two fewer I/O pins (193 vs. 195) require verification that unused pins in the original design or alternative routing can accommodate this difference.

Q: What is the impact of reduced RAM capacity in the substitute part?

A: The LFE2-12E-5FN256C provides 226,304 RAM bits compared to 282,624 bits in the original. Applications must be analyzed to confirm that firmware and data storage requirements do not exceed the substitute's memory allocation. If full capacity is required, alternative parts with higher RAM density should be evaluated.

Q: Are the electrical and thermal operating ranges identical?

A: Yes. Both parts operate at 1.14V ~ 1.26V supply voltage and 0°C ~ 85°C junction temperature, eliminating the need for power supply or thermal design modifications.

Q: Why is the substitute part recommended despite being from a different FPGA series?

A: The LFE2-12E-5FN256C is from the ECP2 series, representing the direct successor architecture from Lattice Semiconductor. It maintains package compatibility, electrical specifications, and operating conditions while offering improved logic capacity and active manufacturer support, addressing the obsolescence of the original ECP series part.

Q: What are the supply chain implications of this substitution?

A: The LFECP10E-3FN256C is obsolete with no ongoing production. The LFE2-12E-5FN256C is an active product with 4,982 units currently in stock, providing immediate availability and long-term supply assurance for new designs and system support.

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

A: No. Both parts carry identical REACH and ECCN classifications (REACH Unaffected, EAR99), maintaining compliance with export control and environmental regulations without additional documentation or approval requirements.