All Questions
Tagged with rise-time digital-logic
7
questions
2
votes
2
answers
409
views
How to speed up rise time on logic shifter?
I am trying to boost a 3.3V data signal to 5V, and I'm using a logic shifter to achieve that. Basically, I'm trying to drive WS2813 LEDs, and the data line needs something close to Vdd (5V) to read ...
- 31
2
votes
1
answer
219
views
What determines the rise time of a digital signal?
What are the factors that determine or affect the rise time of a digital signal?
- 127
0
votes
2
answers
389
views
What does fall and rise of clock mean?
Im new to electronics. In fact, I'm a computer scientist looking into embedded systems.
I am going through Vol. 1 of Jonathan Valvano's book on embedded systems and got stuck when i read on Gated D ...
8
votes
1
answer
360
views
How do I calculate rise times for a push pull GPIO with load with hand calculations?
simulate this circuit – Schematic created using CircuitLab
This is a simplified example of a push pull GPIO found in most microprocessors, with a load attached.
Using the capacitance and ...
- 84.8k
0
votes
1
answer
2k
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How to calculate the rise time and fall time of a flip-flop?
This is an effort to find the rise and fall time of the following circuit.
I have calculated the rise time and requesting confirmation from expert’s end. There are some assumed values like trace ...
- 897
5
votes
2
answers
875
views
Square wave generator has nigh-useless output
I have a system that was designed for testing digital components. I have a device in the system which is used for generation and acquisition of digital signals. Now, I will happily admit to not ...
- 476
4
votes
2
answers
2k
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Building an oscillator out of discrete gates
I want to buid an ocsillator out of discrete XOR gates, I want to acheive 80MHz.
I've tried building one from SN74LVC2G86, but rise/fall times I get is about 25ns. Datasheet does not specify the ...
- 5,571