Studying For Exams, Help to understand the image

[Steves Johnson]

Hi All,

I am studying for exams and I need hep to understand the functionality of the image

http://s1353.beta.photobucket.com/user/joh...4b6df6.png.html

[Geek]

You're not studying very hard

I popped a chip number into Google (curious as to what it was) and found your circuit first page with full description.

[Steves Johnson]

Thanks! I am going to do that. Although last time a used google and got the wrong answer. (as you checked, that's probably correct)

This post has been edited by Steves Johnson on January 16, 2013 10:32 am

[CWB]

look up the part numbers and what functions they perform , then re-draw the circuit as a function block diagram.
this will be far more valuable than a "cookie cutter" answer .

also , i know of a couple of instructors that are not above "planting" bogus or in some manner identifiable schematics ...
this helps to show which students are (shall we say) "cheating" ?

[Geek]

Tip: Study your basic logic gates... 74xxx and 4000-series CMOS and understand what they do and why. If it's digital electronics you're taking, if you don't know or can't identify the basics, you're hooped when it comes to PIC's

(trust me, I KNOW!)