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Transistors as Digital Switches: Intro to Logic Gates Circuits that really count.

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Presentation on theme: "Transistors as Digital Switches: Intro to Logic Gates Circuits that really count."— Presentation transcript:

1 Transistors as Digital Switches: Intro to Logic Gates Circuits that really count

2 My sound’s laid down by the (digital) underground…

3 Operation in Saturation and Cutoff

4 Binary/Digital Representation Digital “1” = +5 V = high Digital “0” = 0 V = low

5 Inverter (NOT logic gate)

6 NAND gate

7 What a real device looks like -- -- From the data sheet http://www.ti.com/lit/ds/symlink/sn74ls00.pdf

8 NOR gate

9 Design an OR gate ABY 000 101 011 111

10 Exclusive OR (XOR)

11 Logic Gate Library

12 And now, your joke of the day There are only 10 types of people in the world. Those who understand binary, and those who don’t.

13 Half-Adder

14 Teddy KGB’s Oreos Stash

15 Digital combos Green LED illuminates when proper code is entered. Ready, set crack the code!

16 Images and Data From: http://www.spsu.edu/cs/faculty/bbrown/web_lectures/transistors/ http://pcbheaven.com/scripts/imagepresent.php?filename=%2Fwikipages%2Fimages%2Ftransistorcircuits_1235488532.jpg http://cpuville.com/logic_gates.htm http://thalia.spec.gmu.edu/~pparis/classes/notes_101/node115.html http://www.cs.uakron.edu/~margush/465/03_digitallevel.html http://faculty.kfupm.edu.sa/COE/ashraf/RichFilesTeaching/COE022_200/Chapter4_1.htm

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