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BrianSune_Froum's avatar
BrianSune_Froum
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29 days ago

Cyclone IV drop in replacement confirmations

Dear Altera, If the BANK VCCIO is 1.8V and the same package but with different LE # FPGA is drop in replace. Where the original pin is a VCCA while different LE size same pin is a IO. With 1.8V on...
Generic Io
Power
Programmable Logic Device
FvM's avatar
FvM
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15 days ago

Hi Brian,

I apologize for not reading your question thoroughly. I didn't realize that you asked about feeding 2.5 VCCA supply to a 1.8 V GPIO due to migration compatible pin assignment. That should always work. To be sure, you can check the respective assignment in Quartus pinout table.

I checked that Quartus indicates connection of VCCA4 (PIN_L12) to 2.5 V for EP4CE10F17 if you select migration compatibility to CE22, no matter that's in a 1.8 V bank.

Regards Frank

BrianSune_Froum's avatar
BrianSune_Froum
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15 days ago

FvM​ 

Dear Sir,

Stop it. Please stop your replies with all do respect.

You referred information from the datasheet and corrects me in previous reply and said the input for VCCIO is subjected to the table from 1.8Vccio aka 2.25 Vmax not the front table VIN max.

Stop your replies and free Altera to response.

For community help and more clear message stop your madness immediate!

Deep appreciation!!!

Brian