LFECP33E-4FN484C Equivalent & Substitute Parts

Part Overview

The LFECP33E-4FN484C is an ECP 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 upgraded.

Substiute Parts

LFECP33E-4FN484C

Lattice Semiconductor CorporationIn Stock: 1154LFECP33E-4FN484C 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 LFECP33E-4FN484C 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) physical dimensions to ensure PCB footprint compatibility and assembly process alignment.

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

I/O Pin Count: The number of I/O pins must be sufficient to support the application's signal routing requirements. The substitute part may have equal or greater I/O capacity.

Logic Capacity: Logic element count and total RAM bits should meet or exceed the original part's specifications to ensure design portability.

Manufacturer Consistency: Parts from Lattice Semiconductor Corporation maintain design ecosystem compatibility and support continuity.

The LFE2-35E-5FN484C qualifies as a substitute based on matching package, voltage, temperature, and mounting specifications while providing enhanced logic capacity and active product status.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Part Replacement: The LFE2-35E-5FN484C is the designated substitute for the LFECP33E-4FN484C. The substitute maintains identical electrical specifications (voltage and temperature ranges), package form factor, and regulatory compliance status. The transition from ECP to ECP2 series represents a technology advancement within the Lattice FPGA product line.

Product Status Consideration: The LFECP33E-4FN484C is obsolete with limited inventory availability. The LFE2-35E-5FN484C is active with substantial inventory (9,300 pcs), ensuring long-term supply chain reliability and design continuity.

Compliance Alignment: Both parts maintain identical REACH, ECCN, and HTSUS classifications, ensuring regulatory and export compliance consistency.

I/O and Logic Trade-offs: The substitute provides comparable logic element density (32,000 vs. 32,800) with a 29-pin I/O reduction (331 vs. 360). Design validation is required to confirm I/O sufficiency for the target application.

Frequently Asked Questions (FAQ)

Q: Can the LFE2-35E-5FN484C directly replace the LFECP33E-4FN484C without PCB modifications?

A: Yes, both parts use the identical 484-BBGA package with 484-FPBGA (23x23) dimensions. PCB footprints are compatible. However, the 29-pin I/O reduction requires design review to confirm signal routing compatibility.

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 thermal and electrical equivalence.

Q: What is the significance of the ECP to ECP2 series transition?

A: ECP2 represents an enhanced generation of Lattice FPGA technology. The LFE2-35E-5FN484C maintains functional compatibility while offering improved performance characteristics and active product status.

Q: Does the substitute part meet the same regulatory requirements?

A: Yes. Both parts share identical REACH, ECCN (3A991D), and HTSUS (8542.39.0001) classifications, maintaining regulatory compliance consistency.

Q: What is the impact of the RAM bit reduction (434,176 vs. 339,968)?

A: The substitute provides 94,208 fewer RAM bits. Design validation is required to confirm that the reduced embedded memory capacity meets application requirements.

Q: Is the moisture sensitivity level the same?

A: Yes. Both parts are classified as MSL 3 (168 Hours), requiring identical handling and storage protocols.