ORSO82G5-2FN680I Equivalent & Substitute Parts

Part Overview

The ORSO82G5-2FN680I 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, design updates, and production continuity.

Substiute Parts

ORSO82G5-2FN680I

Lattice Semiconductor CorporationIn Stock: 717ORSO82G5-2FN680I Datasheet

Current PartRFQ

LFE3-35EA-8FN672I

Lattice Semiconductor CorporationIn Stock: 1196LFE3-35EA-8FN672I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ORSO82G5-2FN680I is determined by compatibility across the following critical parameters:

Electrical Compatibility: Supply voltage range, logic element count, RAM capacity, and I/O pin count must support the target application requirements.

Mechanical Compatibility: Package type (BBGA), ball grid array dimensions, and surface mount configuration must be compatible with existing PCB layouts and assembly processes.

Regulatory Compliance: REACH status and ECCN classification must align with end-use requirements and export regulations.

The LFE3-35EA-8FN672I qualifies as a substitute based on shared manufacturer origin, compatible supply voltage operating ranges, surface mount configuration, equivalent MSL rating, and identical regulatory classifications (REACH Unaffected, ECCN 3A991D). The substitute device offers enhanced logic capacity (33000 elements vs. 10368), expanded RAM (1358848 bits vs. 113664 bits), and an extended operating temperature range (-40°C ~ 100°C vs. -40°C ~ 85°C), with the trade-off of reduced I/O count (310 vs. 372) and different package dimensions (672-FPBGA 27x27 vs. 680-FPBGA 35x35).

Parameter Comparison

Engineering Selection Recommendations

The LFE3-35EA-8FN672I is an active product with current manufacturing support, addressing the obsolescence status of the ORSO82G5-2FN680I. Both devices share identical REACH and ECCN classifications, ensuring regulatory compliance continuity. The substitute device maintains equivalent MSL ratings and surface mount configuration.

Design considerations must account for the following parameter differences: the LFE3-35EA-8FN672I operates at a lower supply voltage range (1.14V ~ 1.26V vs. 1.425V ~ 3.6V), requires PCB layout modification due to different package dimensions (672-FPBGA 27x27 vs. 680-FPBGA 35x35), and provides 62 fewer I/O pins (310 vs. 372). The substitute offers significantly greater logic capacity and RAM, supporting designs with expanded computational requirements within the reduced I/O constraint.

Frequently Asked Questions (FAQ)

Q: Can the LFE3-35EA-8FN672I directly replace the ORSO82G5-2FN680I without PCB modification?

A: No. The devices use different package dimensions (672-FPBGA 27x27 vs. 680-FPBGA 35x35) and ball grid array configurations, requiring PCB layout redesign and re-routing of signal traces.

Q: What is the impact of the reduced I/O count (310 vs. 372 pins)?

A: The substitute provides 62 fewer I/O pins. Applications requiring all 372 I/O connections must evaluate whether the reduced pin count accommodates the design. Unused pins on the original device can be eliminated; however, designs utilizing all 372 pins require functional reassessment.

Q: Are the supply voltage ranges compatible?

A: The voltage ranges differ significantly. The ORSO82G5-2FN680I operates at 1.425V ~ 3.6V, while the LFE3-35EA-8FN672I operates at 1.14V ~ 1.26V. Power supply circuitry must be redesigned to accommodate the lower voltage specification of the substitute.

Q: Do both devices share the same regulatory classifications?

A: Yes. Both devices are REACH Unaffected, carry ECCN 3A991D classification, and share the same HTSUS code (8542.39.0001), ensuring regulatory compliance continuity.

Q: What are the advantages of the LFE3-35EA-8FN672I over the obsolete ORSO82G5-2FN680I?

A: The substitute is an active product with current manufacturing support, offers 3.18x greater logic element capacity (33000 vs. 10368), provides 11.9x greater RAM capacity (1358848 vs. 113664 bits), and supports an extended operating temperature range (-40°C ~ 100°C vs. -40°C ~ 85°C).