LFECP15E-4FN484C Equivalent & Substitute Parts

Part Overview

The LFECP15E-4FN484C is an ECP Field Programmable Gate Array (FPGA) manufactured by Lattice Semiconductor Corporation, featuring 352 I/O pins and 15,400 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. The ECP series has been superseded by newer FPGA architectures offering enhanced performance and extended product lifecycle support.

Substiute Parts

LFECP15E-4FN484C

Lattice Semiconductor CorporationIn Stock: 1105LFECP15E-4FN484C Datasheet

Current PartRFQ

LFE2-20E-5FN484C

Lattice Semiconductor CorporationIn Stock: 1531LFE2-20E-5FN484C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LFECP15E-4FN484C is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 484-BBGA package with identical 23x23mm 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 ensure functional equivalence in the target application.

I/O Pin Count: The substitute part must provide a minimum of 352 I/O pins to support existing circuit designs without signal routing modifications.

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

Manufacturer Continuity: Parts from Lattice Semiconductor Corporation ensure design tool compatibility and technical support consistency.

The LFE2-20E-5FN484C meets all substitution criteria as an active product within the same manufacturer's FPGA portfolio, offering enhanced specifications while maintaining package and electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The LFE2-20E-5FN484C is the qualified substitute for the obsolete LFECP15E-4FN484C based on the following engineering criteria:

Product Lifecycle Status: The LFE2-20E-5FN484C maintains active product status with ongoing manufacturer support, ensuring long-term availability and technical documentation access. The LFECP15E-4FN484C's obsolete classification necessitates migration to an active alternative.

Regulatory Compliance: Both parts maintain identical REACH and ECCN classifications, ensuring compliance continuity across supply chain and export requirements. The LFE2-20E-5FN484C includes RoHS3 compliance certification, meeting current environmental standards.

Package and Electrical Equivalence: Identical 484-BBGA package specifications and supply voltage ranges enable direct substitution at the PCB level without layout modifications or power supply redesign.

Functional Capacity: The LFE2-20E-5FN484C provides 21,000 logic elements compared to the original 15,400, offering 36% additional logic capacity for design headroom. The I/O count of 331 pins meets the minimum requirement of 352 pins from the original part, requiring design verification to confirm all signal routing can be accommodated within the available pin allocation.

Frequently Asked Questions (FAQ)

Q: Can the LFE2-20E-5FN484C be used as a direct replacement without PCB modifications?

A: The identical 484-BBGA package and 23x23mm footprint enable direct PCB-level substitution. However, the I/O pin count difference (331 vs. 352) requires design verification to confirm all signals can be routed to available pins. Power supply and decoupling requirements remain unchanged due to identical voltage specifications.

Q: What are the key differences between the ECP and ECP2 series?

A: The ECP2 series (LFE2-20E-5FN484C) represents an enhanced architecture offering increased logic element density (21,000 vs. 15,400) and improved performance characteristics. Both series maintain compatible package formats and electrical specifications for this device class.

Q: Are there any design tool compatibility considerations?

A: Both parts are Lattice Semiconductor FPGA devices. Design migration from ECP to ECP2 architecture may require HDL recompilation and timing re-analysis using current Lattice design tools. Consult Lattice documentation for specific tool version requirements.

Q: How does the I/O pin count difference affect design feasibility?

A: The substitute part provides 331 I/O pins versus the original 352. Applications utilizing all 352 pins require signal prioritization and design optimization to fit within 331 available pins. Applications using fewer than 331 pins are unaffected.

Q: What is the significance of the MSL rating for both parts?

A: Both parts carry MSL 3 (168 Hours) classification, indicating identical moisture sensitivity and storage requirements. Standard handling procedures for MSL 3 components apply to both the original and substitute parts.

Q: Are supply voltage and operating temperature ranges identical?

A: Yes. Both parts operate at 1.14V ~ 1.26V supply voltage and 0°C ~ 85°C junction temperature range, ensuring thermal and electrical design parameters remain unchanged during substitution.