On Sat, 17 Jun 2000, Greg Hastings wrote:

> The PIC 16F84 spec says it can
>
> sink 25mA max
> and
> source 20mA max
>
> What is the difference between the two?

Sink:
Current flows into the PIC from an external source...
------
PIC  |--/\/\/\------ GND
------

Source:
Current flows out from the PIC to an external load...
------
PIC  |--/\/\/\------ +V
------

Somebody please tell me I didn't get that bass-ackwards, it's been a long
day.

Dale
---
The most exciting phrase to hear in science, the one that heralds new
discoveries, is not "Eureka!" (I found it!) but "That's funny ..."
                -- Isaac Asimov