ORT82G5-2FN680C Equivalent & Substitute Parts

Part Overview

The ORT82G5-2FN680C is an ORCA® 4 Field Programmable Gate Array (FPGA) manufactured by Lattice Semiconductor Corporation, featuring 372 I/O pins, 10368 logic elements, and 113664 total RAM bits in a 680-BBGA package. This device is classified as obsolete, making identification of functionally compatible alternatives essential for ongoing system support, redesign initiatives, and inventory management. The substitute part LFE3-35EA-8FN672C represents an active product line offering comparable FPGA functionality with enhanced specifications.

Substiute Parts

ORT82G5-2FN680C

Lattice Semiconductor CorporationIn Stock: 1710ORT82G5-2FN680C Datasheet

Current PartRFQ

LFE3-35EA-8FN672C

Lattice Semiconductor CorporationIn Stock: 1032LFE3-35EA-8FN672C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The LFE3-35EA-8FN672C qualifies as a substitute based on the following criteria:

Allowed Substitution Parameters:

• Manufacturer: Same (Lattice Semiconductor Corporation)
• Mounting Type: Same (Surface Mount)
• Category: Same (Embedded FPGA)
• REACH Status: Same (REACH Unaffected)
• ECCN: Same (3A991D)
• HTSUS: Same (8542.39.0001)
• Moisture Sensitivity Level: Same (3, 168 Hours)

Functional Capacity Alignment: The substitute part provides 33000 logic elements and 1358848 RAM bits, representing increased computational capacity compared to the original part. The I/O count of 310 pins is lower than the original 372 pins; however, this reduction is offset by the active product status and enhanced performance characteristics of the ECP3 series.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The ORT82G5-2FN680C is classified as obsolete, indicating discontinued manufacturing and limited long-term availability. The LFE3-35EA-8FN672C maintains active product status with ongoing manufacturing support from Lattice Semiconductor Corporation, ensuring sustained component availability and technical support.

Compliance and Certifications: Both parts share identical REACH status (REACH Unaffected), ECCN classification (3A991D), and HTSUS code (8542.39.0001). The substitute part carries RoHS3 compliance certification, providing additional environmental regulatory alignment for new designs.

Thermal Operating Range: The substitute part extends the upper operating temperature limit to 85°C (TJ) compared to the original 70°C (TA), offering improved thermal margin for demanding applications.

Package and Form Factor: The substitute part uses a 672-FPBGA package (27x27mm) compared to the original 680-FPBGA (35x35mm), resulting in a smaller footprint. This reduction in package size requires PCB layout reassessment but enables more compact system designs.

Frequently Asked Questions (FAQ)

Q: Can the LFE3-35EA-8FN672C directly replace the ORT82G5-2FN680C in existing designs?

A: Direct replacement requires design evaluation. While both parts are Lattice Semiconductor FPGAs with identical compliance certifications, the substitute has fewer I/O pins (310 vs. 372) and a different package footprint (672-FPBGA 27x27mm vs. 680-FPBGA 35x35mm). PCB layout and pin assignment modifications are necessary.

Q: What are the key differences in logic capacity?

A: The LFE3-35EA-8FN672C provides 33000 logic elements and 1358848 RAM bits, compared to 10368 logic elements and 113664 RAM bits in the ORT82G5-2FN680C. This represents approximately 3.2x greater logic capacity and 11.9x greater RAM capacity in the substitute part.

Q: Are there supply chain advantages to using the substitute part?

A: Yes. The LFE3-35EA-8FN672C is an active product with ongoing manufacturing support, whereas the ORT82G5-2FN680C is obsolete. Active product status ensures sustained availability, technical documentation, and manufacturing support from Lattice Semiconductor Corporation.

Q: How do the voltage supply ranges compare?

A: The ORT82G5-2FN680C operates at 1.425V ~ 3.6V, while the LFE3-35EA-8FN672C operates at 1.14V ~ 1.26V. The substitute part requires a narrower, lower voltage supply range, necessitating power supply circuit redesign.

Q: What packaging considerations apply to the substitute part?

A: The LFE3-35EA-8FN672C uses a 672-pin FPBGA package in a 27x27mm form factor, compared to the 680-pin FPBGA in a 35x35mm form factor. The smaller package reduces PCB area requirements but demands higher-density routing and assembly precision.