LFECP15E-3FN484C Equivalent & Substitute Parts

Part Overview

The LFECP15E-3FN484C is an ECP Field Programmable Gate Array (FPGA) manufactured by Lattice Semiconductor, 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 represents an earlier generation of Lattice FPGA technology, and active alternatives within the same package footprint and electrical specifications are available to ensure design continuity.

Substiute Parts

LFECP15E-3FN484C

Lattice SemiconductorIn Stock: 1054LFECP15E-3FN484C 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-3FN484C 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 layout modifications.

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 equivalence in the target application.

I/O Pin Count: The substitute part must provide a minimum of 352 I/O pins to support existing pinout requirements. Increased I/O availability does not preclude substitution.

Logic Capacity: The substitute must provide logic element capacity equal to or greater than 15,400 elements to accommodate the original design's functional requirements.

Manufacturer Compliance: Parts must maintain REACH compliance status and equivalent moisture sensitivity ratings to ensure supply chain and manufacturing process compatibility.

The LFE2-20E-5FN484C meets all substitution criteria as an active product within the same package family, representing an enhanced generation of Lattice FPGA technology.

Parameter Comparison

Engineering Selection Recommendations

The LFE2-20E-5FN484C is a direct substitute for the LFECP15E-3FN484C based on the following engineering criteria:

Package Equivalence: Both devices utilize the identical 484-BBGA (23x23mm) package, eliminating PCB redesign requirements and ensuring mechanical compatibility.

Electrical Compatibility: Matching supply voltage specifications (1.14V ~ 1.26V) and operating temperature ranges (0°C ~ 85°C) guarantee functional equivalence in power delivery and thermal management.

Regulatory Compliance: Both parts maintain REACH compliance status and identical export control classifications (ECCN 3A991D, HTSUS 8542.39.0001), ensuring supply chain continuity.

Product Status Advantage: The LFE2-20E-5FN484C is classified as active, providing long-term availability and manufacturing support compared to the obsolete LFECP15E-3FN484C.

Enhanced Capacity: The substitute provides 21,000 logic elements compared to 15,400 in the original part, offering additional design margin and future scalability within the same physical footprint.

I/O Consideration: The LFE2-20E-5FN484C provides 331 I/O pins versus 352 in the original part. Design verification is required to confirm that the 21-pin reduction does not impact the target application's pinout requirements.

Frequently Asked Questions (FAQ)

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

A: Yes. Both devices share the identical 484-BBGA package footprint (23x23mm), eliminating PCB layout changes. However, the pinout assignment must be verified to ensure the 331 available I/O pins accommodate the original design's signal routing.

Q: What is the impact of the reduced I/O count (331 vs. 352 pins)?

A: The substitute provides 21 fewer I/O pins. Design verification is required to confirm that all signals in the original design can be routed using the available pins on the LFE2-20E-5FN484C.

Q: Are the 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, ensuring equivalent power delivery and thermal performance.

Q: Why does the substitute have lower RAM capacity (282,624 bits vs. 358,400 bits)?

A: The ECP2 series architecture allocates silicon resources differently than the ECP series. The LFE2-20E-5FN484C compensates with 37% more logic elements (21,000 vs. 15,400), which may offset RAM requirements depending on the application.

Q: Is the LFE2-20E-5FN484C suitable for new designs?

A: Yes. The LFE2-20E-5FN484C is classified as active, providing long-term manufacturing support and availability for both legacy system support and new design implementations.

Q: Are moisture sensitivity and handling requirements the same?

A: Yes. Both parts carry MSL 3 (168 Hours) classification, requiring identical storage, handling, and reflow procedures.

Q: What are the regulatory compliance implications of substitution?

A: Both parts maintain REACH compliance and identical export control classifications (ECCN 3A991D), ensuring no regulatory barriers to substitution.