ORSO82G5-2FN680C Equivalent & Substitute Parts

Part Overview

The ORSO82G5-2FN680C is an ORCA® 4 Field Programmable Gate Array (FPGA) manufactured by Lattice Semiconductor Corporation. This device features 372 I/O pins, 10,368 logic elements, and 113,664 total RAM bits in a 680-BBGA package. The product is currently obsolete, making identification of compatible substitute components essential for ongoing system support, design updates, and production continuity.

Substiute Parts

ORSO82G5-2FN680C

Lattice Semiconductor CorporationIn Stock: 1159ORSO82G5-2FN680C 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 is identified as a manufacturer-recommended substitute for the ORSO82G5-2FN680C. Substitution eligibility is determined by the following critical parameters:

Substitution Criteria:

• Manufacturer: Both devices are manufactured by Lattice Semiconductor Corporation
• Mounting Type: Both use Surface Mount technology
• Moisture Sensitivity Level: Both rated at MSL 3 (168 Hours)
• Regulatory Compliance: Both are REACH Unaffected and share the same ECCN (3A991D) and HTSUS (8542.39.0001) classifications
• Device Category: Both are embedded FPGA devices

Parameter Variations: The substitute part operates at a different supply voltage range (1.14V ~ 1.26V versus 1.425V ~ 3.6V), features a different package size (672-FPBGA 27x27 versus 680-FPBGA 35x35), and has different I/O count (310 versus 372), logic element count (33,000 versus 10,368), and RAM capacity (1,358,848 bits versus 113,664 bits). These differences reflect the transition from the obsolete ORCA® 4 series to the active ECP3 series.

Parameter Comparison

Engineering Selection Recommendations

The LFE3-35EA-8FN672C is the manufacturer-recommended substitute for the obsolete ORSO82G5-2FN680C. Both devices share identical regulatory classifications (ECCN 3A991D, HTSUS 8542.39.0001) and REACH compliance status. The substitute part is currently in active production status, ensuring long-term availability and supply chain stability.

The LFE3-35EA-8FN672C operates at a narrower, lower supply voltage range and features enhanced logic capacity and RAM resources. The package footprint is smaller (27x27 versus 35x35), and the I/O count is reduced (310 versus 372). These differences require design-level evaluation to confirm functional compatibility with the original application requirements.

Frequently Asked Questions (FAQ)

Q: Can the LFE3-35EA-8FN672C directly replace the ORSO82G5-2FN680C in existing designs?

A: Direct replacement requires design verification. While both devices are Lattice Semiconductor FPGAs with identical regulatory compliance, they differ in package size, I/O count, logic element capacity, RAM size, and supply voltage specifications. PCB layout modifications and firmware updates may be necessary.

Q: What are the key differences in package specifications?

A: The ORSO82G5-2FN680C uses a 680-FPBGA package measuring 35x35mm, while the LFE3-35EA-8FN672C uses a 672-FPBGA package measuring 27x27mm. The smaller footprint of the substitute part may require PCB redesign.

Q: How do the I/O counts differ between these devices?

A: The ORSO82G5-2FN680C provides 372 I/O pins, while the LFE3-35EA-8FN672C provides 310 I/O pins. Applications requiring more than 310 I/O connections cannot use the substitute part without architectural modifications.

Q: Are there voltage supply differences?

A: Yes. The ORSO82G5-2FN680C operates at 1.425V ~ 3.6V, while the LFE3-35EA-8FN672C operates at 1.14V ~ 1.26V. Power supply circuits must be redesigned to accommodate the substitute part's narrower voltage range.

Q: What is the operating temperature range difference?

A: The ORSO82G5-2FN680C operates from 0°C ~ 70°C (TA), while the LFE3-35EA-8FN672C operates from 0°C ~ 85°C (TJ). The substitute part supports a wider upper temperature limit.

Q: Do both devices have the same moisture sensitivity requirements?

A: Yes. Both devices are rated at MSL 3 (168 Hours), requiring identical handling and storage protocols.