LFXP20C-5FN388C Equivalent & Substitute Parts

Part Overview

The LFXP20C-5FN388C is an XP series Field Programmable Gate Array (FPGA) manufactured by Lattice Semiconductor Corporation, featuring 268 I/O pins and 20,000 logic elements in a 388-BBGA package. This device is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity. The XP series has been superseded by newer FPGA architectures with enhanced performance and expanded feature sets.

Substiute Parts

LFXP20C-5FN388C

Lattice Semiconductor CorporationIn Stock: 1124LFXP20C-5FN388C 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 LFXP20C-5FN388C is determined by the following criteria:

Functional Capacity: The substitute must provide equal or greater logic element count (minimum 20,000 cells) and RAM capacity (minimum 405,504 bits) to maintain design functionality.

I/O Pin Count: The substitute must accommodate the required 268 I/O connections. Devices with higher I/O counts (363 pins) remain compatible as long as the physical package footprint and pinout mapping are validated during integration.

Voltage Compatibility: The substitute must operate within overlapping or compatible supply voltage ranges to ensure power delivery system compatibility.

Package and Mounting: Surface mount BBGA packages with equivalent or superior thermal and mechanical characteristics are acceptable substitutes.

Product Status and Compliance: Active product status ensures ongoing manufacturer support, documentation availability, and supply chain reliability. ROHS3 compliance and REACH unaffected status confirm environmental and regulatory alignment.

The LFXP2-30E-5FN484C meets these substitution criteria through expanded logic capacity, increased I/O capability, and active product status within the Lattice FPGA portfolio.

Parameter Comparison

Engineering Selection Recommendations

The LFXP2-30E-5FN484C is the designated substitute for the obsolete LFXP20C-5FN388C based on the following factors:

Product Lifecycle: The LFXP2-30E-5FN484C maintains active product status, ensuring manufacturer support, technical documentation, and supply chain availability. The LFXP20C-5FN388C obsolete status creates long-term sourcing risk.

Regulatory Compliance: Both devices share identical ECCN and HTSUS classifications. The LFXP2-30E-5FN484C carries ROHS3 compliance certification, meeting current environmental standards.

Functional Headroom: The substitute provides 45% additional logic elements (29,000 vs. 20,000) and 35% more I/O pins (363 vs. 268), enabling design flexibility and future feature expansion.

Thermal and Mechanical Compatibility: Both devices operate within the same temperature range (0°C ~ 85°C TJ) and share identical MSL ratings (3, 168 Hours), ensuring equivalent handling and storage requirements.

Design Integration Considerations: The transition from 388-BBGA to 484-BBGA packaging requires PCB layout modification and pinout validation. The voltage supply range difference (1.71V ~ 3.465V vs. 1.14V ~ 1.26V) necessitates power delivery system redesign to accommodate the lower, narrower supply specification of the XP2 series device.

Frequently Asked Questions (FAQ)

Q: Can the LFXP2-30E-5FN484C directly replace the LFXP20C-5FN388C without design changes?

A: Direct replacement is not possible. The substitute requires PCB redesign due to package change (388-BBGA to 484-BBGA), pinout differences, and power supply voltage specification changes (1.71V ~ 3.465V to 1.14V ~ 1.26V). Functional logic can be migrated, but hardware integration modifications are mandatory.

Q: What are the key substitution criteria for this FPGA family?

A: Substitution is determined by logic element capacity (minimum 20,000 cells), RAM capacity (minimum 405,504 bits), I/O pin count compatibility (268 minimum), surface mount BBGA packaging, and operating temperature range (0°C ~ 85°C TJ). Voltage supply compatibility and product status are secondary factors affecting implementation feasibility.

Q: Why is the LFXP2-30E-5FN484C recommended over other potential alternatives?

A: The LFXP2-30E-5FN484C is the manufacturer-designated substitute, providing the closest functional match within the Lattice FPGA portfolio. It exceeds minimum capacity requirements, maintains identical thermal and moisture sensitivity specifications, and carries active product status with current compliance certifications.

Q: What impact does the voltage supply range difference have on system design?

A: The LFXP20C-5FN388C operates at 1.71V ~ 3.465V, while the LFXP2-30E-5FN484C requires 1.14V ~ 1.26V. This narrower, lower voltage specification requires dedicated power delivery circuitry redesign, including voltage regulator selection, filtering, and current capacity adjustments. System-level power architecture validation is required.

Q: Are there any compliance or certification differences between these devices?

A: Both devices share identical ECCN (3A991D) and HTSUS (8542.39.0001) classifications. The LFXP2-30E-5FN484C carries ROHS3 compliance, while the obsolete LFXP20C-5FN388C does not specify this certification. Both are REACH unaffected and carry MSL 3 ratings.