LFXP20E-4FN484C Equivalent & Substitute Parts

Part Overview

The LFXP20E-4FN484C is an XP series Field Programmable Gate Array (FPGA) manufactured by Lattice Semiconductor Corporation. This device features 20,000 logic elements, 405,504 total RAM bits, and 340 I/O pins in a 484-BBGA package. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system support, design updates, and procurement planning.

Substiute Parts

LFXP20E-4FN484C

Lattice Semiconductor CorporationIn Stock: 1234LFXP20E-4FN484C Datasheet

Current PartRFQ

LFXP2-30E-5FN484C

Lattice Semiconductor CorporationIn Stock: 1121LFXP2-30E-5FN484C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LFXP20E-4FN484C is determined by the following critical parameters:

• Package Compatibility: Both main and substitute parts must use the 484-BBGA package in 23x23 form factor to ensure PCB footprint compatibility and mounting requirements remain unchanged.
• Supply Voltage Range: The substitute must operate within the 1.14V ~ 1.26V supply voltage specification to maintain power delivery compatibility with existing power distribution networks.
• Operating Temperature Range: The substitute must support the 0°C ~ 85°C (TJ) operating temperature range to ensure thermal compatibility with the application environment.
• I/O Pin Count: The substitute must provide equal or greater I/O capability (minimum 340 pins) to support existing signal routing and interface requirements.
• Logic Element Capacity: The substitute must provide equal or greater logic element count (minimum 20,000 cells) to accommodate the implemented design.
• RAM Capacity: The substitute must provide equal or greater total RAM bits (minimum 405,504 bits) to support memory-dependent functions.
• Mounting Type: Surface mount technology must be maintained for assembly process compatibility.

The LFXP2-30E-5FN484C meets all substitution criteria as an active product with enhanced specifications across logic elements, I/O count, and RAM capacity while maintaining identical package, voltage, temperature, and mounting specifications.

Parameter Comparison

Engineering Selection Recommendations

The LFXP2-30E-5FN484C is the qualified substitute for the obsolete LFXP20E-4FN484C based on the following engineering criteria:

• Product Status: The substitute is an active product with current manufacturing support and availability, eliminating obsolescence risk associated with the main part.
• Regulatory Compliance: Both parts maintain identical REACH and ECCN classifications, ensuring no change to regulatory or export control requirements.
• RoHS Compliance: The substitute is RoHS3 compliant, meeting current environmental standards for new designs and procurement.
• Electrical Compatibility: Identical supply voltage range (1.14V ~ 1.26V) and operating temperature range (0°C ~ 85°C) ensure direct compatibility with existing power and thermal management infrastructure.
• Physical Compatibility: Identical 484-BBGA package in 23x23 form factor and surface mount technology maintain PCB footprint and assembly process compatibility.
• Functional Enhancement: The substitute provides increased logic element capacity (29,000 vs. 20,000), additional I/O pins (363 vs. 340), and equivalent RAM capacity, supporting design scalability without architectural changes.

Frequently Asked Questions (FAQ)

Q: Can the LFXP2-30E-5FN484C be used as a direct replacement for the LFXP20E-4FN484C?

A: Yes. Both devices share identical package specifications (484-BBGA, 23x23), supply voltage range (1.14V ~ 1.26V), operating temperature range (0°C ~ 85°C), and mounting type (surface mount). The substitute provides equal or greater capacity across all functional parameters.

Q: What are the key differences between these two parts?

A: The LFXP2-30E-5FN484C belongs to the newer XP2 series and provides 29,000 logic elements compared to 20,000 in the XP series main part, plus 23 additional I/O pins (363 vs. 340). The substitute is an active product with current manufacturing support, whereas the main part is obsolete.

Q: Are there any compatibility concerns with PCB assembly?

A: No. Both parts use identical 484-BBGA packaging in 23x23 form factor with surface mount technology. PCB footprints, solder pad layouts, and assembly processes remain unchanged.

Q: Do the parts have the same power supply requirements?

A: Yes. Both parts operate within the 1.14V ~ 1.26V supply voltage range and maintain identical moisture sensitivity level (MSL 3, 168 hours), requiring the same power distribution and handling procedures.

Q: What is the impact of the increased logic element count?

A: The substitute provides 45% more logic elements (29,000 vs. 20,000), enabling support for more complex designs or future design enhancements without requiring a package change or PCB redesign.

Q: Are regulatory and export classifications affected by this substitution?

A: No. Both parts maintain identical REACH status (REACH Unaffected), ECCN classification (3A991D), and HTSUS code (8542.39.0001). The substitute is RoHS3 compliant, meeting current environmental standards.