107Views5Replies

Author Options:

Can someone provide the schematic for a 2 input TTL OR Gate with Totem Pole Output? Answered

I have for some weeks been researching to find the schematic for a 2 input TTL OR Gate with Totem Pole Output (versus the Open Collector variety).  However, I have had little success in finding the schematic.  It was suggested that I try the Forum to resolve my problem.  Therefore, can someone either provide a reference that shows the schematic or draw one?  Thanks.

Discussions

0
None
ElectroZapper

3 years ago

Thanks to all. I finally found the Gate (TTL OR) that I was searching for. I went through a "back door" approach by going to a Texas Instruments Datasheet on a TTL 2 input OR gate. They had one drawn out. Finally! I've been weeks in finding this rascal. I tried searches with Ask, Yahoo, Google....etc. and zip. But, finally hit pay dirt. Again, thanks to everyone. Problem solved.

0
None
Josehf Murchison

3 years ago

I have schematics for a number gates, inverter, buffer, and, nand, or, nor.

You can PM me with your Email or just Google transistor logic gates.

0
None
ElectroZapper

3 years ago

Thanks for answering. Yes, I am a student of electronics and am sort of time traveling, at this point. Just in case anyone is worried, NO, I am not attempting to cheat on any test. Anywho, yes, I want to build these gates from discrete components. During my college training, I, indeed, took the DC, AC, Analogue, and Digital requirements; howbeit, to my frustration and disappointment, they only taught a brief overview on digital material (saying much is now out-of-date). Whilst that is true, I still feel it important to get a grasp of what is truly going on inside those crazy chips. I mean, somebody had to sit down and draw up these monsters as if using discrete stuff, test to see if it worked, fixed what was needed, then took that to chip technology, and came out with the finished product (a chip of some sort). BUT, what is going on inside? That's my quest. So, again, YES, I am studying discrete components. Currently, I am looking at TTL (circa 1970s and 1980s technology). Later, I shall time travel further back and pick up DTL (I think that one is before TTL...circa 1960s to 1970s?). So, can you provide me with a schematic of the 2-input TTL OR Gate with totem pole output (I found the open collector output easily, but the totem pole output seems a bit lost in time). I hope that by doing this, gaps in my electronics education might be better filled in. Thanks. Have a great day.

0
None
rickharris

3 years ago

You want to make one from descrete componants?

0
None
steveastrouk

3 years ago

Very tricky, semiconductor manufacturers don't play by the rules of discrete circuit building, they can use special tricks like transistors with multiple emitters that can't be replicated in discrete circuitry.