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Altera_Forum
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15 years ago

Cyclone III configuration using M25P16 flash

Hi all, I've recently switched config devices from an ST M25P40 to an ST M25P16 flash for a design using a Cyclone III EP3C10 (in active serial mode). I've wired up the flash as indicated in t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Sounds as though the M25P16 has a slightly higher drive strength than the M25P40 causing reflections with your current board layout. I'd check both devices' data sheets if I were you.

If the data sheet shows identical values, this also means that the boards that are being configured by the M25P40 may be marginal and may fail in the future.

Best regards,

Ben