LFECP20E-3FN484C Equivalent & Substitute Parts

Part Overview

The LFECP20E-3FN484C is an ECP Field Programmable Gate Array (FPGA) from Lattice Semiconductor Corporation, featuring 360 I/O pins, 19700 logic elements, and 434176 total RAM bits 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.

Substiute Parts

LFECP20E-3FN484C

Lattice Semiconductor CorporationIn Stock: 893LFECP20E-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 LFECP20E-3FN484C is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 484-BBGA package with 484-FPBGA (23x23) supplier device package to ensure mechanical and electrical compatibility with existing PCB layouts and assembly processes.

Electrical Specifications: Supply voltage range (1.14V ~ 1.26V) and operating temperature range (0°C ~ 85°C) must be maintained to ensure functional compatibility within the target application environment.

I/O Pin Count and Logic Resources: The substitute part must provide sufficient I/O pins, logic elements, and RAM bits to support the original design requirements. The LFE2-20E-5FN484C meets these criteria with 331 I/O pins, 21000 logic elements, and 282624 RAM bits, providing equivalent or greater functional capacity.

Regulatory and Environmental Compliance: REACH status and ECCN classification must align to maintain compliance with applicable regulations and export controls.

Parameter Comparison

Engineering Selection Recommendations

The LFE2-20E-5FN484C is the manufacturer-recommended substitute for the obsolete LFECP20E-3FN484C. Both devices share identical package specifications (484-BBGA), electrical operating parameters (1.14V ~ 1.26V supply, 0°C ~ 85°C operating temperature), and regulatory compliance status (REACH Unaffected, ECCN 3A991D).

The LFE2-20E-5FN484C offers active product status, ensuring continued availability and technical support. The ECP2 series provides enhanced logic capacity (21000 logic elements versus 19700) and maintains compatibility with the same package footprint and pin assignment structure.

Both devices carry identical moisture sensitivity levels (MSL 3, 168 Hours) and are classified under the same HTSUS code, confirming their functional equivalence for component selection purposes.

Frequently Asked Questions (FAQ)

Q: Can the LFE2-20E-5FN484C directly replace the LFECP20E-3FN484C in existing designs?

A: Yes, both devices use the identical 484-BBGA package with 484-FPBGA (23x23) footprint, identical supply voltage range (1.14V ~ 1.26V), and identical operating temperature range (0°C ~ 85°C). PCB layout compatibility is maintained. Design verification is required to confirm functional equivalence based on specific application requirements.

Q: What is the difference in I/O pin count between these parts?

A: The LFECP20E-3FN484C provides 360 I/O pins, while the LFE2-20E-5FN484C provides 331 I/O pins. Both devices use the same 484-pin package; the difference reflects the internal architecture of each series. Pin assignment verification is necessary for applications with specific I/O requirements.

Q: Are there differences in RAM capacity between these devices?

A: The LFECP20E-3FN484C contains 434176 total RAM bits, while the LFE2-20E-5FN484C contains 282624 total RAM bits. Applications requiring the full RAM capacity of the original device must be evaluated for compatibility with the reduced RAM specification of the substitute.

Q: Why is the LFECP20E-3FN484C classified as obsolete?

A: The LFECP20E-3FN484C belongs to the ECP series, which has been superseded by the ECP2 series. Lattice Semiconductor has transitioned product support to newer architectures. The LFE2-20E-5FN484C represents the active product line continuation.

Q: Are moisture sensitivity levels identical for both parts?

A: Yes, both the LFECP20E-3FN484C and LFE2-20E-5FN484C carry MSL 3 (168 Hours) classification, indicating identical handling and storage requirements.

Q: Do both parts comply with REACH regulations?

A: Yes, both devices are classified as REACH Unaffected, confirming compliance with applicable environmental regulations.