What is power up sequence for LPC4357?

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What is power up sequence for LPC4357?

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_pritesh
Contributor I

I am working on custom LPC4357 based board design, I would like to know the voltage power-up sequence of this processor like when clock is generated/stabilized, any delay in reset pulse (e.g. when does the /RST pin should be pulled up, before clock generation or after?) required to feed controller upon powering ON.

An in-depth timing diagram is much appreciated.

It will be beneficial for implementation of hardware design for us.

Thank you.

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Pavel_Hernandez
NXP TechSupport
NXP TechSupport

Hello, I was researching more information, there is no available hardware design guide for this MCU, and the Datasheet does not mention a specific power sequence.

But maybe the schematic could help you with your design.

LPC1850EVA-A4.sch (nxp.com)

Best regards,
Pavel

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Pavel_Hernandez
NXP TechSupport
NXP TechSupport

Hello, my name is Pavel, and I will be supporting your case, let me get into your case and when I have more information, I will contact you.

Best regards,
Pavel

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_pritesh
Contributor I
HI,
any update?
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