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4hv.org :: Forums :: General Science and Electronics
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Logic Gates

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Tetris
Sat Jul 23 2011, 02:27AM Print
Tetris Registered Member #4016 Joined: Thu Jul 21 2011, 01:52AM
Location: Gainesville, FL
Posts: 660
Truth tables confuse me. Can someone please explain to me logic gates and what a latch is? Thanks!
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Patrick
Sat Jul 23 2011, 02:35AM
Patrick Registered Member #2431 Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
allaboutcircuits.com explains it well. you may want to start here.... Link2
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haxor5354
Sat Jul 23 2011, 02:36AM
haxor5354 Registered Member #2063 Joined: Sat Apr 04 2009, 03:16PM
Location: Toronto
Posts: 352
ture table are easy, you have inputs on the left and output on the right
heres a truth table for an "and" gate and "or" gate
AndOrTables
colum A and B are inputs and colum X is output.
in TTL logic, 5 volts is a 1, and 0 volts is a 0
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Tetris
Sat Jul 23 2011, 04:50AM
Tetris Registered Member #4016 Joined: Thu Jul 21 2011, 01:52AM
Location: Gainesville, FL
Posts: 660
but what about when you connect multiple ones? And what about NANDs, NORs, XORs, inverters, and XNORs? ...
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Adam Munich
Sat Jul 23 2011, 05:00AM
Adam Munich Registered Member #2893 Joined: Tue Jun 01 2010, 09:25PM
Location: Cali-forn. i. a.
Posts: 2242
Then you use a Karnaugh Map.

Link2

Also, sig too long :p
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Patrick
Sat Jul 23 2011, 06:38AM
Patrick Registered Member #2431 Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Grenadier wrote ...

Then you use a Karnaugh Map.

Link2

Also, sig too long :p
Yes, your sig is too damn long and yes for the K-map point Grenadier makes. Im more than twice your age, therefore i remember what the dinosaurs were like. (Wholly crap--Im older than dirt)
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