LFECP20E-4FN672C Equivalent & Substitute Parts

Part Overview

The LFECP20E-4FN672C is an ECP Field Programmable Gate Array (FPGA) from Lattice Semiconductor, featuring 400 I/O pins and 19,700 logic elements in a 672-BBGA package. This device is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations. The ECP series has been superseded by the ECP2 generation, which maintains package compatibility while offering enhanced logic capacity and performance characteristics.

Substiute Parts

LFECP20E-4FN672C

Lattice SemiconductorIn Stock: 1159LFECP20E-4FN672C Datasheet

Current PartRFQ

LFE2-20E-5FN672C

Lattice Semiconductor CorporationIn Stock: 1224LFE2-20E-5FN672C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LFECP20E-4FN672C is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 672-BBGA (27x27) package to ensure mechanical and electrical fit on existing PCBs.

Voltage Supply Range: The substitute must operate within the 1.14V – 1.26V supply voltage window to maintain compatibility with existing power delivery systems.

Mounting Type: Surface mount technology must be preserved for assembly process compatibility.

Operating Temperature Range: The substitute must support the 0°C – 85°C operating range to function within the same thermal envelope.

I/O Pin Count: The substitute must provide a minimum of 400 I/O pins to support existing signal routing and interface requirements.

Moisture Sensitivity Level: MSL 3 classification ensures equivalent handling and storage requirements.

The LFE2-20E-5FN672C meets all these substitution criteria while offering increased logic capacity (21,000 elements vs. 19,700) and enhanced RAM (282,624 bits vs. 434,176 bits), making it a direct functional replacement with improved specifications.

Parameter Comparison

Engineering Selection Recommendations

The LFE2-20E-5FN672C is the recommended substitute for the obsolete LFECP20E-4FN672C based on the following engineering criteria:

Product Status: The LFECP20E-4FN672C is obsolete, while the LFE2-20E-5FN672C is active and available in production quantities (1,135 pcs in stock).

Regulatory Compliance: The LFE2-20E-5FN672C carries ROHS3 compliance certification, meeting current environmental and regulatory standards. Both parts maintain REACH Unaffected status and identical ECCN and HTSUS classifications.

Package and Electrical Compatibility: Identical 672-BBGA package footprint, voltage supply range, operating temperature range, and moisture sensitivity level ensure direct PCB compatibility without layout modifications.

Enhanced Specifications: The LFE2-20E-5FN672C provides 21,000 logic elements compared to 19,700 in the original part, offering increased design headroom for logic implementation without package or power delivery changes.

Frequently Asked Questions (FAQ)

Q: Can the LFE2-20E-5FN672C be used as a direct replacement on existing PCBs designed for the LFECP20E-4FN672C?

A: Yes. Both devices use the identical 672-BBGA (27x27) package footprint, operate within the same 1.14V – 1.26V supply voltage range, and share the same operating temperature specifications (0°C – 85°C). No PCB layout modifications are required.

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

A: The LFECP20E-4FN672C provides 400 I/O pins, while the LFE2-20E-5FN672C provides 402 I/O pins. The additional 2 pins do not affect compatibility on existing designs, as they represent enhanced functionality in the newer generation.

Q: Are there differences in RAM capacity between the two parts?

A: Yes. The LFECP20E-4FN672C contains 434,176 total RAM bits, while the LFE2-20E-5FN672C contains 282,624 total RAM bits. Design implementations must account for this difference in available embedded memory resources.

Q: Does the LFE2-20E-5FN672C meet current regulatory requirements?

A: Yes. The LFE2-20E-5FN672C is ROHS3 compliant and maintains REACH Unaffected status, meeting current environmental and regulatory standards. The obsolete LFECP20E-4FN672C does not carry ROHS3 certification.

Q: Are the moisture sensitivity levels equivalent?

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

Q: What is the availability status of each part?

A: The LFECP20E-4FN672C is obsolete with 1,130 pcs in stock. The LFE2-20E-5FN672C is active with 1,135 pcs in stock and represents the current production alternative.