piclist 2000\06\08\130055a >
Thread: Newbie questions: TTL or CMOS?
www.piclist.com/techref/microchip/begin.htm?key=pic
picon face BY : Nathan Burnside email (remove spam text)



<x-flowed>Are the PIC I/O pins TTL or CMOS? The data sheets say that the PICs are
CMOS, but it also says the I/O pins have a TTL buffer. Does this mean that
I need to treat them strictly as TTL? What kind of situations can damage
the I/O pins on a PIC? (aside from the case of voltages over Vdd and under
Vss) If I set an output pin high when it is tied to ground, will it simply
source 20mA without damaging the chip, or will it cause a short to Vdd and
fry the chip? Thanks for your help.

Nathan

</x-flowed>
<4.2.0.58.20000608114400.009861d0@students.uiuc.edu>

See also: www.piclist.com/techref/microchip/begin.htm?key=pic
Reply You must be a member of the piclist mailing list (not only a www.piclist.com member) to post to the piclist. This form requires JavaScript and a browser/email client that can handle form mailto: posts.
Subject (change) Newbie questions: TTL or CMOS?

month overview.

new search...