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Nor Flash

DynEng
New Contributor

I need to read the Ready/Busy [RY/BY#] signal with a 3.3V device. Can I pull-up to 3.3V when the IO voltage is 1.8V? Save a level translator if I can without damaging the device.  It is open drain and the core reference is 3.3V but the IO is 1.8.  I don't see this documented in the data sheet.

 

S70GL02GT is the memory type

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1 Solution
BushraH_91
Moderator
Moderator

Hello,

In the datasheet  All pins other than RESET# max rating is Vio +.5V.    Therefore unfortunately you cannot put 3.6V on RY-BY when VIO is 1.8V.

BushraH_91_0-1631919766175.png

Thank you

Regards,

Bushra

 

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2 Replies
BushraH_91
Moderator
Moderator

Hello,

Thank you for contacting Cypress Technical Support, an Infineon Technologies Company. Currently I am looking into your issue and will get back to you as soon as possible.

Have a wonderful day

Regards,

Bushra

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BushraH_91
Moderator
Moderator

Hello,

In the datasheet  All pins other than RESET# max rating is Vio +.5V.    Therefore unfortunately you cannot put 3.6V on RY-BY when VIO is 1.8V.

BushraH_91_0-1631919766175.png

Thank you

Regards,

Bushra

 

View solution in original post

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