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Is series resistor to IC required?

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venkates2218

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Is series resistor to IC is required.

power supply pins.png
Friend please refer the image.
In this circuit I added an series resistor to the controller across VDD and MCLR pins...
Is this good practice or their is no need to put an series resistor across VDD and MCLR..?
 

Re: Is series resistor to IC is required.

Hi,

the second time you show a schematic with a series resistor in VCC or VDD line. Why?
As before: It still is no good idea.

An electrolytic capacitor is not suitable to stabilize VDD.

If you want a delayed MCLR, then your circuit simply is wrong.

Just reading the datasheet will give you the answer to both VDD and MCLR questions.

Klaus
 

Re: Is series resistor to IC is required.

Hello venkates2218,
I have to agree with KlausST 100%.
C11 should be a non-polarized cap of 0.1uF placed as close to the IC itself when producing
the PCB pattern.
R2 should not be in-circuit at all, as with C10 and R1, as the MCLR needs +5V to operate
correctly.
Regards,
Relayer
 

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