How does one typically model a microcontroller circuit load? I can read the datasheets and see the maximum current, but of course the load is dynamic. I presume also I can throw a large capacitor that is the sum of all the bypass caps plus the input capacitance on the source circuits. So I guess there are two questions:

1. How do I model the max load? Just the total capacitance w/ a current source in parallel, then a DC point?

2. How do I model things across time? Perhaps make the current source a PWL type and run a transient analysis?

Thanks!