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Altera_Forum's avatar
Altera_Forum
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10 years ago

The pin VCCPGM power supply at AS mode

Hi all, The pin VCCPGM power supply must be 3.0v/3.3v at AS mode in the cyclone v datasheet. why? I select a 1.8v low voltage flash from cypress. Can I connet VCCPGM pin to 1.8v? Thanks...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

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as mode is for epcq or epcs shipped by altera. no cypress device. you may miss understand ps or fpp configuration, 2.5 and 1.8v are also available for these configuration mode.

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I replace the epcs with a cypress small outline 3.3v spi flash successfully.

In order to reduce power cosumption, I plan to use the 1.8v spi flash from cypress now. Can i do it?