LFECP33E-5FN484C Equivalent & Substitute Parts

Part Overview

The LFECP33E-5FN484C is an ECP Field Programmable Gate Array (FPGA) manufactured by Lattice Semiconductor Corporation. This device features 360 I/O pins, 32,800 logic elements, and 434,176 total RAM bits in a 484-BBGA package. The product is currently obsolete, which necessitates identification of functionally compatible alternatives for ongoing system support and new designs requiring equivalent performance characteristics.

Substiute Parts

LFECP33E-5FN484C

Lattice Semiconductor CorporationIn Stock: 877LFECP33E-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 LFECP33E-5FN484C is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 484-BBGA package with identical 23x23mm dimensions to ensure PCB footprint compatibility and mechanical fit.

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

Logic Capacity: The substitute part must provide logic element count and RAM bit capacity sufficient to accommodate designs originally targeted for the LFECP33E-5FN484C.

I/O Pin Count: The number of available I/O pins must be equal to or greater than the original 360 pins to support existing board designs without requiring layout modifications.

Manufacturer Continuity: Parts from Lattice Semiconductor Corporation ensure design tool compatibility and consistent device architecture within the ECP family lineage.

Parameter Comparison

Engineering Selection Recommendations

The LFE2-35E-5FN484C is the manufacturer-recommended substitute for the obsolete LFECP33E-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 moisture sensitivity classification (MSL 3).

The LFE2-35E-5FN484C is part of the ECP2 series, representing an evolutionary advancement within the Lattice FPGA product line. The substitute provides 32,000 logic elements compared to 32,800 in the original part, and 339,968 RAM bits compared to 434,176. The I/O count is 331 pins versus 360 in the original device.

The LFE2-35E-5FN484C holds Active product status with RoHS3 compliance, ensuring long-term availability and regulatory alignment. Both parts maintain identical REACH and ECCN classifications, supporting consistent supply chain and export compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the LFE2-35E-5FN484C be used as a direct replacement for the LFECP33E-5FN484C?

A: The LFE2-35E-5FN484C shares the same 484-BBGA package footprint and electrical specifications. However, the substitute has 29 fewer I/O pins (331 vs. 360) and reduced RAM capacity (339,968 vs. 434,176 bits). Substitution is viable only if the target application does not require all 360 I/O pins and can operate within the reduced RAM specification.

Q: Are there any voltage or temperature differences between these parts?

A: Both parts operate at identical supply voltage (1.14V ~ 1.26V) and temperature ranges (0°C ~ 85°C). No electrical parameter adjustment is required for thermal or power supply design.

Q: Will the PCB layout require modification?

A: Both parts use the 484-BBGA package with identical 23x23mm dimensions. The PCB footprint remains unchanged. However, the reduction in I/O pin count (360 to 331) may require design review to confirm all required signal connections can be accommodated on the substitute device.

Q: What is the difference between ECP and ECP2 series?

A: The LFE2-35E-5FN484C belongs to the ECP2 series, which represents a subsequent generation within the Lattice FPGA product family. Both series maintain compatible package and electrical specifications for this device class.

Q: Is the substitute part currently available?

A: The LFE2-35E-5FN484C holds Active product status with 9,300 units in stock, compared to the obsolete LFECP33E-5FN484C with 780 units remaining. The substitute ensures long-term procurement viability.

Q: Are compliance certifications identical?

A: Both parts share identical REACH status (REACH Unaffected), ECCN classification (3A991D), and HTSUS code (8542.39.0001). The LFE2-35E-5FN484C additionally carries RoHS3 compliance certification.