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PSoC 5, 3 & 1

NaMo_1534561
Contributor II

Hello,

PSoC1 CY8C29466-24PVXI operates at supply voltage 3.0V to 3.6V or 4.75V to 5.25V.

On the other hand, looking at DC Programming Specifications in the data sheet,

Vddp: VDD for programming and erase requires min 4.5V / max 5.5V.

Customers use PSoC at Vdd=3.3V. Even in this case, is 5V different from Vdd=3.3V needed for on-board programming?

Best Regards,

Naoaki Morimoto

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1 Solution
RyanZhao
Moderator
Moderator

Hello Morimoto-san,

Programming/erasing under 4.5V for PSoC1 may lead to PSoC1 unstable Flash data.

Yes. Even though customers use this device at Vdd=3.3V, 5V programming/erasing is required to guarantee the life cycle of Flash data.

Thanks,

Ryan

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1 Reply
RyanZhao
Moderator
Moderator

Hello Morimoto-san,

Programming/erasing under 4.5V for PSoC1 may lead to PSoC1 unstable Flash data.

Yes. Even though customers use this device at Vdd=3.3V, 5V programming/erasing is required to guarantee the life cycle of Flash data.

Thanks,

Ryan

View solution in original post

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