LPC865 ram issue

TeemoLi — Wed, 15 Nov 2023 07:50:50 GMT

The part number LPC845M301JHI48K.

VDD ~ 1.3Voltage. It can works。

Sometimes it gets erased. Which memory voltage will cause the Flash to be erased.

Or does undervoltage not change or erase data?

Is the normal Flash operating voltage 1.8V or how many voltage ?

Re: LPC865 ram issue

diego_charles — Thu, 16 Nov 2023 20:15:01 GMT

Hi @TeemoLi

I hope that you are doing well!

According to the LPC845 Datasheet, the minimum voltage for VDD is 1.8v.

The normal operating voltage is 3.3v.

As a general reply, if the voltage is below the specification there is no guaratee for the MCU to behave properly.

The LPC845 integrates an brownout protection mechanism, which maintains the device in a reset if the VDD voltage falls below the expected. Because if the VDD specifications are not meet, the device may malfunction.

This a general reply from my side. If you have more concerns about this or more details, like the test situation or scenario that you are facing to get 1.3v, do not hesitate to let me know.

All the best,

Diego

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LPC865 ram issue

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