Deagol_the_Dead
New Member
The PIC12C509A has 6 I/O pins with 25mA source/sink per I/O.
I am having trouble understanding the whole "source/sink" deal.
Does "source" mean draw 25mA from the chip (output)?
Does "sink" mean the chip can draw (input) 25mA? :?:
Let's say, at 5V, 25mA, R would need to = 200 Ohms, right?
If R = 50 ohms, the chip would try to output 100mA (and burn up?)?
If R = 250 ohms, the chip would only output 20mA?
Sorry if this sounds trivial, but for some reason I am having a hard time getting it! :cry:
Thanks!
I am having trouble understanding the whole "source/sink" deal.
Does "source" mean draw 25mA from the chip (output)?
Does "sink" mean the chip can draw (input) 25mA? :?:
Let's say, at 5V, 25mA, R would need to = 200 Ohms, right?
If R = 50 ohms, the chip would try to output 100mA (and burn up?)?
If R = 250 ohms, the chip would only output 20mA?
Sorry if this sounds trivial, but for some reason I am having a hard time getting it! :cry:
Thanks!