Tagged Questions
5
votes
2answers
81 views
What should be considered when sizing trace widths for digital logic signals?
For traces that carry a static DC current, it's pretty easy to calculate the minimum trace width based on the required ampacity of the trace. However, I'm not sure what should be considered when ...
2
votes
1answer
246 views
XOR gate; transistor level design [duplicate]
What would a transistor level design of an XOR gate look like?
2
votes
2answers
263 views
Strange behavior from a 4017 Johnson counter
I'm using a HEF4017BP connected to LEDs and a pusbutton to control some LEDs.
Here's the schematic:
So I'm using the pushbutton to drive the clock, the capacitor is there to help with debouncing ...
2
votes
1answer
578 views
What is the fastest 7400 series family? Is 74VHC faster than 74AHC?
What is the fastest 7400 series logic family?
Is 74VHC* faster than 74AHC*?
This list does not seem to be in any particular order:
http://en.wikipedia.org/wiki/7400_series
2
votes
3answers
554 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:
...
2
votes
2answers
543 views
CMOS (or CMOS compatible) shift register with latched open-drain outputs
I've been looking for a 3.3V compatible shift register (SIPO) with latched open-drain outputs. I've settled on a 74xx596 (not a '595!), but of all the 74xx CMOS series I've been looking at omit this ...
