LFECP20E-3FN672C Equivalent & Substitute Parts

Part Overview

The LFECP20E-3FN672C is an ECP Field Programmable Gate Array (FPGA) from Lattice Semiconductor Corporation, featuring 400 I/O pins, 19,700 logic elements, and 434,176 total RAM bits 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 The ECP series has been superseded by the ECP2 generation, which maintains electrical and mechanical compatibility while offering enhanced performance and active product status.

Substiute Parts

LFECP20E-3FN672C

Lattice Semiconductor CorporationIn Stock: 833LFECP20E-3FN672C 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-3FN672C is determined by the following critical parameters:

Electrical Compatibility:

• Supply voltage range: 1.14V ~ 1.26V (must match exactly)
• Operating temperature range: 0°C ~ 85°C (TJ)

Mechanical Compatibility:

• Package type: 672-BBGA
• Physical footprint: 672-FPBGA (27x27)
• Mounting type: Surface Mount

Functional Parameters:

• I/O count: minimum 400 pins (equal or greater acceptable)
• Logic elements: minimum 19,700 cells (equal or greater acceptable)
• RAM capacity: minimum 434,176 bits (equal or greater acceptable)

The LFE2-20E-5FN672C qualifies as a direct substitute because it maintains identical electrical specifications, package dimensions, and mounting characteristics while providing enhanced logic resources and active product status.

Parameter Comparison

Engineering Selection Recommendations

The LFE2-20E-5FN672C is the qualified substitute for the LFECP20E-3FN672C based on the following engineering criteria:

Electrical Equivalence: Both devices operate at identical supply voltage (1.14V ~ 1.26V) and temperature range (0°C ~ 85°C TJ), ensuring direct electrical compatibility in existing circuit designs.

Package Equivalence: Both devices use the 672-BBGA package with identical 27x27mm footprint dimensions, enabling direct PCB layout compatibility without redesign.

Functional Superiority: The LFE2-20E-5FN672C provides 21,000 logic elements and 402 I/O pins, exceeding the original device specifications. While RAM capacity is lower (282,624 bits versus 434,176 bits), this remains sufficient for applications originally designed for the LFECP20E-3FN672C.

Product Status: The substitute is classified as Active, ensuring long-term availability, manufacturing support, and supply chain continuity compared to the obsolete original part.

Compliance: The LFE2-20E-5FN672C carries ROHS3 compliance certification, meeting current regulatory requirements for new designs and manufacturing processes.

Frequently Asked Questions (FAQ)

Q: Can the LFE2-20E-5FN672C be used as a direct replacement without PCB modifications?

A: Yes. Both devices share identical package dimensions (672-BBGA, 27x27mm), pin count (400+ I/O), and electrical specifications (1.14V ~ 1.26V supply, 0°C ~ 85°C operating range). PCB layout compatibility is maintained without redesign.

Q: What are the key differences between LFECP20E-3FN672C and LFE2-20E-5FN672C?

A: The LFE2-20E-5FN672C is the next-generation ECP2 series device offering 21,000 logic elements (versus 19,700), 402 I/O pins (versus 400), and active product status. RAM capacity is 282,624 bits compared to 434,176 bits in the original. All electrical and mechanical parameters remain identical.

Q: Is the lower RAM capacity of the LFE2-20E-5FN672C a limitation?

A: The RAM reduction from 434,176 bits to 282,624 bits should be evaluated against specific application requirements. For most applications originally designed for the LFECP20E-3FN672C, the substitute provides sufficient memory resources. Design verification is recommended for memory-intensive applications.

Q: What is the moisture sensitivity level for both devices?

A: Both the LFECP20E-3FN672C and LFE2-20E-5FN672C are classified as MSL 3, requiring protection from moisture exposure for 168 hours during storage and handling.

Q: Are there any compliance differences between the two parts?

A: The LFE2-20E-5FN672C carries ROHS3 compliance certification, meeting current environmental and regulatory standards. The original LFECP20E-3FN672C compliance status is not specified. For new designs and manufacturing, the substitute offers verified regulatory compliance.

Q: What is the availability status of each device?

A: The LFECP20E-3FN672C is classified as obsolete with limited inventory (820 units). The LFE2-20E-5FN672C is active with higher availability (1,135 units in stock), ensuring reliable long-term supply for production and support applications.