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Altera_Forum
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16 years ago

Pinout compatibility across EP3Cxx devices

We are in design with an EP3C40. We chose the F484 package in order to have upward compatibility to place larger FPGA devices on our circuit board if our design requires greater FPGA resources. I n...
Altera_Forum's avatar
Altera_Forum
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16 years ago

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the larger density devices in the same package have more vcc/gnd pins.

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Basically. Unfortunately, there are some irregularities particularly with pin mapping of Cyclone III devices. Thus it's strongly recommended to check the final assignment with Quartus before producing the PCB.

Apart from having Quartus to check the pinning, I usually combine the Excel pinouts of the intended migration devices into one spreadsheet.