MSP432P411V: The capacitance of the RSTn pin

UNA

Part Number: MSP432P411V

Hi,

I have question about of the RSTn of MSP432P411V.

As described in the figure below, how to treat the RSTn terminal, I want to reduce the capacitor for noise reduction.
Can I use 1uF instead of 1.1nF?

Best Regards,
H.U

over 6 years ago

0 zrno soli over 6 years ago

Guru 34523 points

I guess that this 47k / 1nF combination is copy / paste from MSP430 family where RST pin is used for SBW connection. SWD don't use RST pin, so for all Cortex-M devices I know, cap value can be 1 uF.

0 Chris Sterzik over 6 years ago

TI__Guru 66581 points

Yes. You can use the larger capacitor value. If timing of the reset is critical, then please pay attention to the change in the time constant associated with the larger capacitance.

Regards,
Chris

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MSP432P411V: The capacitance of the RSTn pin