Materials for DTL, TTL circuit analysis

Click For Summary

Discussion Overview

The discussion centers around the analysis of DTL (Diode-Transistor Logic) and TTL (Transistor-Transistor Logic) circuits in preparation for an upcoming test. Participants seek additional resources and materials to better understand the qualitative and quantitative aspects of these circuits, including truth tables and timing diagrams.

Discussion Character

  • Homework-related
  • Exploratory
  • Technical explanation

Main Points Raised

  • One participant expresses a need for additional materials, particularly video resources, to supplement their understanding of DTL and TTL circuits beyond what is covered in lectures.
  • Another participant questions whether the original poster has covered the material in class, indicating a potential gap in understanding.
  • A participant suggests using Google Images to find visual representations of TTL logic and recommends discussing any confusing images with instructors or classmates.
  • One participant provides a brief overview of basic logic gate functions, outlining the behavior of OR, AND, NOR, and NAND gates.
  • A suggestion is made to consider truth tables as a fundamental tool for analyzing logic circuits.
  • Another participant mentions that data sheets for basic logic gates may provide insight into internal circuit analysis.

Areas of Agreement / Disagreement

Participants generally agree on the need for additional resources and the importance of understanding the basic functions of logic gates. However, there is no consensus on specific materials or methods for studying DTL and TTL circuits, and some participants express uncertainty about their prior knowledge and experience with DTL logic.

Contextual Notes

Some participants express limitations in their understanding of DTL logic, and there are references to varying levels of familiarity with the subject matter. The discussion includes suggestions for visual aids and practical resources but does not resolve the participants' differing experiences with the material.

diredragon
Messages
321
Reaction score
15
Hi fellow forum-ers :),
I have a test in about two weeks where i am going to be given a dtl or ttl circuit which i have to analyse and calculate its function. The professor said that the circuit given to us will always be a useful and existing one meaning he's going to give us some NAND, NOR or similar circuit without specifying which circuit it is and we have to analyse the circuit both qualitatively with a table of inputs - transistor states - outputs to conclude which it is and quantitatively by making calculations and drawing a graph of the circuit with all the points of change drawn on the graphic.
So far i have only found a youtube video by ntelhrd

which deals with this and was wondering if any of you guys can recommend any extra material (preferably in video form if exists) to cover this in more clarity than i got from my lectures?
 
Engineering news on Phys.org
So have you not covered any of this material in a lecture or classroom?
 
Averagesupernova said:
So have you not covered any of this material in a lecture or classroom?
We have, but we only just started and i wanted to learn ahead by studying from some other source. It will be covered in the lectures to come but i don't really like the way they explain it.
 
diredragon said:
We have, but we only just started and i wanted to learn ahead by studying from some other source. It will be covered in the lectures to come but i don't really like the way they explain it.
(I'm really old and even I never learned or used DTL logic, so I'm not of any help on that part) :smile:

I would start with a Google Images search of TTL logic, and be sure that you can figure out each of the dozens and dozens of images that show up. If any confuse you, save them and talk them through with your instructor or classmates. As for guided tutorials, I'd just keep using Google to try to find more of them.
 
  • Like
Likes   Reactions: anorlunda
I will give you a start in a few simple lines:
-
OR: Any HIGH on input gives a HIGH on the output.
AND: Any LOW gives a LOW.
NOR: Any HIGH gives a LOW.
NAND: Any LOW gives a HIGH.
 
  • Like
Likes   Reactions: dlgoff and jim hardy
Does the term "Truth Table" come to mind? It's a basic but powerful tool .
 
  • Like
Likes   Reactions: dlgoff
berkeman said:
(I'm really old and even I never learned or used DTL logic, so I'm not of any help on that part) :smile:
[OFF TOPIC]I must be really old then, as my old ham mentor introduced me to RTL when it first became available in IC packages.[/END OFF TOPIC]
 
  • Like
Likes   Reactions: jim hardy
Some data sheets for basic logic gates show the internal circuit. Perhaps practice analysing some of those?
 
  • Like
Likes   Reactions: Tom.G and berkeman

Similar threads

  • · Replies 10 ·
Replies
10
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 17 ·
Replies
17
Views
3K
  • · Replies 9 ·
Replies
9
Views
2K
Replies
8
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K
Replies
12
Views
3K
Replies
20
Views
4K