HI,
From most of the TI reference design for MCUs, I found numerous decoupling capacitors next to power pins.
There are two questions about decoupling capacitors.
1) Value of the capacitor
Most of the decoupling capacitors have value of 100nF.
Is there any specific reason that most of MCU use 100nF as decouping capacitors?
2) Replace several capacitors with one large value capacitor
In case of extremely size-constraint design, it would be great to replace several 100nF decoupling capacitors with one large value capacitor to save space.
If the replaced capacitor had large enough value, would it be OK for stability of entire circuitry?
If so, could ten 100nF capacitors simply be replaced by one 1uF capacitor?
Thanks in advance