LFEC33E-5FN484C Equivalent & Substitute Parts

Part Overview

The LFEC33E-5FN484C is an EC series Field Programmable Gate Array (FPGA) manufactured by Lattice Semiconductor Corporation, featuring 360 I/O pins and 32,800 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 where legacy functionality must be maintained or migrated.

Substiute Parts

LFEC33E-5FN484C

Lattice Semiconductor CorporationIn Stock: 985LFEC33E-5FN484C Datasheet

Current PartRFQ

LFE2-35E-5FN484C

Lattice Semiconductor CorporationIn Stock: 9325LFE2-35E-5FN484C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LFEC33E-5FN484C is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 484-BBGA package in 23x23mm form factor to ensure PCB footprint compatibility and mounting requirements are met.

Electrical Specifications: Supply voltage range (1.14V ~ 1.26V) and operating temperature range (0°C ~ 85°C) must be identical to maintain system-level electrical integrity.

I/O Pin Count: The number of I/O pins determines signal routing capability. Substitute parts must provide sufficient I/O to support the original design's signal requirements.

Logic Capacity: Logic element count and RAM bit capacity define the functional density available for design implementation. Substitutes with equal or greater capacity maintain design portability.

Regulatory Compliance: REACH status, ECCN classification, and HTSUS codes must align to ensure compliance with applicable regulations and export controls.

Parameter Comparison

Engineering Selection Recommendations

The LFE2-35E-5FN484C serves as the primary substitute for the obsolete LFEC33E-5FN484C. Both devices share identical package specifications (484-BBGA, 23x23mm), electrical operating parameters (1.14V ~ 1.26V supply, 0°C ~ 85°C operating range), and regulatory classifications (REACH Unaffected, ECCN 3A991D, HTSUS 8542.39.0001).

The LFE2-35E-5FN484C is currently in active production status, ensuring long-term availability and supply chain stability. The substitute provides comparable logic capacity (32,000 elements versus 32,800) and maintains the same MSL rating (3, 168 Hours).

Design migration from LFEC33E-5FN484C to LFE2-35E-5FN484C requires evaluation of I/O pin utilization (331 available pins on substitute versus 360 on original) and RAM requirements (339,968 bits versus 434,176 bits). These differences must be assessed against specific application requirements to confirm functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the LFE2-35E-5FN484C directly replace the LFEC33E-5FN484C in existing PCB designs?

A: Both devices use identical 484-BBGA packages with 23x23mm form factors, enabling direct PCB footprint compatibility. However, pin assignment differences between EC and ECP2 series require design verification to confirm signal routing compatibility.

Q: What are the key differences in I/O and memory capacity?

A: The LFE2-35E-5FN484C provides 331 I/O pins compared to 360 on the original, and 339,968 RAM bits versus 434,176 bits. Applications utilizing all 360 I/O pins or requiring maximum RAM capacity must evaluate whether the substitute meets functional requirements.

Q: Are the electrical specifications identical?

A: Yes. Both devices operate at 1.14V ~ 1.26V supply voltage and 0°C ~ 85°C junction temperature range, ensuring electrical compatibility in system designs.

Q: What is the significance of product status differences?

A: The LFEC33E-5FN484C is obsolete, indicating discontinued manufacturing and limited availability. The LFE2-35E-5FN484C is active production, providing assured long-term supply and support.

Q: Are regulatory and compliance certifications equivalent?

A: Both devices share identical REACH status (REACH Unaffected), ECCN classification (3A991D), HTSUS codes (8542.39.0001), and MSL ratings (3, 168 Hours), ensuring equivalent regulatory compliance.