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1 vote
0 answers
138 views

Confusion In Fanout of Logic Circuit and Transistor

Fanout:-Maximum Gate we connect to output of any Logic gate. so there is limited number of gate we connect the output of Logic Gate.hence there is some minimum condition required for operation of ...
Nitish's user avatar
  • 306
0 votes
1 answer
355 views

Advantages of using 2 NPN transistor NOT gate

Is there any benefit using 2 NPN transistors for a NOT gate rather than one NPN transistor?
Oliver's user avatar
  • 39
5 votes
2 answers
603 views

TTL NOR Gate analysis

I'm looking at the design below. I am reading this webpage where the picture came from. What I'm aiming at is the wisdom behind the design. Looking at the two transistors facing downward, I assume ...
romeoPH's user avatar
  • 317
0 votes
1 answer
250 views

TTL Gates Power Dissipation Values

I am not finding any datasheets that provide clear information about the power dissipation of some gates of the 74LS series: 08, 02, 04, 00, 32 and 86. Can someone help?
Ralph Aouad's user avatar
4 votes
2 answers
19k views

TTL, Totem Pole vs. Open Collector Output

What is the difference of these two ttl nand gates? What is a totem pole, what does it do and what is it used for? When connecting multiple ttl logic gates together is it better to use one or the ...
Kevin Sirois's user avatar
6 votes
2 answers
14k views

Help between 2n2222 and 2n2222a?

I am thinking about ordering this: http://www.ebay.com/itm/x100-Fairchild-PN2222A-2N2222A-NPN-Small-Signal-TO-92-Transistors-US-Seller-/171520659038?pt=LH_DefaultDomain_0&hash=item27ef6d8e5e and ...
Cello Coder's user avatar
5 votes
3 answers
2k views

Going from Transistors to Gates to.....IC's?

So I am trying to understand I guess what is probably a basic concept of computers. I was taking a look at this previous question: From Transistor to Gates And it's accompanying link: http://www.cs....
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