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Visitor shiromini96
Visitor
2,006 Views
Registered: ‎11-24-2017

What's the operating temperature range?

I am looking at Spartan-6 FPGA Embedded Kit.

The FPGA it contains is Spartan-6 XC6SLX45T-FGG484-3.

According to the datasheet the last letter of the part number is suppose to indicate the FPGA's operating temperature but the last letter of the part number is not even a letter so how do I find out it's operating temperature?

 

Many thanks, 

Shiromini

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3 Replies
Scholar austin
Scholar
1,998 Views
Registered: ‎02-27-2008

Re: What's the operating temperature range?

s,

 

Although not clear, as far as I can tell, it is a -3 speedgrade, and almost surely a commercial temperature grade device (perhaps one of the sp605 board folks can chime in here).

 

That means the junction must not be below 0 degrees C, or above 85 degrees C.  With no heatsink, and no fan (no forced air), it may be limited to less than 5 watts internal power dissipation depending on the ambient air temperature.

 

See:  https://forums.xilinx.com/t5/Spartan-Family-FPGAs/SPARTAN-6-TEMPERATURE-DISSIPATION/td-p/774697

 

Austin Lesea
Principal Engineer
Xilinx San Jose
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Guide avrumw
Guide
1,993 Views
Registered: ‎01-23-2009

Re: What's the operating temperature range?

The part doesn't have an "i" or "q" in it, which would indicate industrial or extended temperature range, so it is a "commercial" part (almost all development boards use commercial temperature range parts).

 

The spartan-6 datasheet (DS162) specifies the Tj for the commercial range to be 0C to 85C (the normal commercial range). This is the junction temperature - you need to do fairly complex analysis to estimate the airflow, heat sink, and cooling you need to keep under this temperature based on the amount of power your FPGA will draw (and the ambient temperature you will be running in). The Xilinx Power Estimator spreadsheet will help you determine this (but it requires some expertise and a fair amount of understanding about your design).

 

Avrum

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Xilinx Employee
Xilinx Employee
1,957 Views
Registered: ‎08-01-2008

Re: What's the operating temperature range?

your SP605 board has this device
XC6SLX45T-FG484C-3CES
https://www.xilinx.com/publications/prod_mktg/v6s6embdkit_faq.pdf
For temp rang please refer page 9
https://www.xilinx.com/support/documentation/data_sheets/ds160.pdf
Thanks and Regards
Balkrishan
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