LFEC20E-5FN484C Equivalent & Substitute Parts

Part Overview

The LFEC20E-5FN484C is an EC series Field Programmable Gate Array (FPGA) manufactured by Lattice Semiconductor Corporation, featuring 360 I/O pins and 19,700 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 ECP2 series successor provides enhanced logic capacity while maintaining electrical and mechanical compatibility within the specified parameter constraints.

Substiute Parts

LFEC20E-5FN484C

Lattice Semiconductor CorporationIn Stock: 3459LFEC20E-5FN484C 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 LFEC20E-5FN484C is determined by the following critical parameters:

Electrical Compatibility: Voltage supply range (1.14V – 1.26V) and operating temperature range (0°C – 85°C) must be maintained or exceeded.

Mechanical Compatibility: Package type (484-BBGA) and physical footprint (23×23 mm) must be identical to ensure PCB-level compatibility without redesign.

Functional Capacity: Logic element count, RAM capacity, and I/O pin count must meet or exceed the original specification to ensure design requirements are satisfied.

Regulatory Compliance: REACH status, ECCN classification, and HTSUS code must align with the original part for supply chain and export compliance.

The LFE2-20E-5FN484C qualifies as a direct substitute based on matching electrical specifications, identical package geometry, and equivalent regulatory classification, while providing increased logic capacity (21,000 elements) and maintained I/O functionality (331 pins).

Parameter Comparison

Engineering Selection Recommendations

The LFE2-20E-5FN484C is the qualified substitute for the obsolete LFEC20E-5FN484C based on the following engineering criteria:

Product Status: The substitute part maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete original part.

Regulatory Alignment: Both parts share identical REACH status (REACH Unaffected), ECCN classification (3A991D), and HTSUS code (8542.39.0001), eliminating compliance barriers for procurement and deployment.

Electrical Specifications: Identical voltage supply range (1.14V – 1.26V) and operating temperature range (0°C – 85°C) ensure direct electrical compatibility without power delivery or thermal management modifications.

Package Compatibility: Identical 484-BBGA package with 23×23 mm footprint enables direct PCB-level substitution without layout redesign or assembly process changes.

Functional Enhancement: The substitute provides increased logic element capacity (21,000 vs. 19,700), supporting design scalability and future feature expansion within the same physical and electrical envelope.

Frequently Asked Questions (FAQ)

Q: Can the LFE2-20E-5FN484C be used as a direct replacement for the LFEC20E-5FN484C on existing PCBs?

A: Yes. Both parts use the 484-BBGA package with identical 23×23 mm footprint, electrical specifications (1.14V – 1.26V supply, 0°C – 85°C operating range), and mounting type (surface mount). No PCB redesign is required.

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

A: The original part provides 360 I/O pins, while the substitute provides 331 I/O pins. Design verification is required to confirm that the reduced I/O count does not impact system functionality.

Q: Does the substitute part have different RAM capacity?

A: Yes. The LFEC20E-5FN484C contains 434,176 RAM bits, while the LFE2-20E-5FN484C contains 282,624 RAM bits. Applications requiring the full original RAM capacity must be evaluated for compatibility.

Q: Are there any regulatory or compliance differences?

A: No. Both parts share identical REACH status, ECCN classification, and HTSUS codes, ensuring equivalent regulatory treatment for procurement and export purposes.

Q: Why is the original part classified as obsolete?

A: The LFEC20E-5FN484C is an older EC series device. Lattice Semiconductor has transitioned to the ECP2 series, which provides enhanced performance and logic capacity while maintaining package and electrical compatibility.

Q: What is the moisture sensitivity level, and does it affect handling?

A: Both parts have MSL 3 rating (168 hours), requiring standard moisture control during storage and assembly. No additional handling precautions are necessary beyond industry-standard practices for BGA components.