WhatTheDilly-O
Baseband Member
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- 34
i'm brand new here, so i hope this is the right forum to post this question on:
i'm wondering if all logic circuits are designed with the regular Boolean logic gates, or if theyre ever designed transistor by transistor. for example, with the boolean gates, a half-adder is built with one XOR and one AND gate, which as far as i know requiers at least ten transistors to implement. however, i can make a half adder that has the exact same logic table with just four transistors, if i just forget about boolean gates and just work with the logic of NPN and PNP transistors. it seems to me that everyone uses the boolean gates, and i'm wondering why it's done that way, and what i'm missing. does it have something to do with the electronic properties of the transistors or something?
hope you understand what i'm talking about.
i'm wondering if all logic circuits are designed with the regular Boolean logic gates, or if theyre ever designed transistor by transistor. for example, with the boolean gates, a half-adder is built with one XOR and one AND gate, which as far as i know requiers at least ten transistors to implement. however, i can make a half adder that has the exact same logic table with just four transistors, if i just forget about boolean gates and just work with the logic of NPN and PNP transistors. it seems to me that everyone uses the boolean gates, and i'm wondering why it's done that way, and what i'm missing. does it have something to do with the electronic properties of the transistors or something?
hope you understand what i'm talking about.