A 74LS374 Octal D-Type Edge Triggered Flip Flop used as an LED sequencer.
By Julian
Youtuber, shed dweller, solar charge controller aficionado
Good morning all…
Youtuber, shed dweller, solar charge controller aficionado
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YOU TUBE – Robotizado con CD 4017 , NE 555 Pilotos Andre
nice job i found this litle boy into many old printer button board any idea why it was use for on this device ??? i notice it looking for salvage 4021 in fact i was thinking there was button matrix on printer and shiffter to read it but not….
Hi Julian, You explained everything very well with good drawings thank you very much
Hello , is it possible to turn on LEDs individually by a corresponding switch ? like 8 switches that each lits its own related led and when pressed it will turn off the rest
So, you turned an octal latch… not into a flip-flop, but a flip-flip-flip-flip-flip-flip-flip-flop?
I hereby dub this the flippin'-flopper. 😀
Please help me what is the IC DM74ALS574AN equation? because I was very difficult to find the IC in my location
Is this IC the same as DM74ALS574AN? thank you for helping
Love the channel. Your videos have been a great help in me building my own breadboard computer. Cheers.
I noticed the 555's output at pin three is not connected to your D flip flop. Just sayin'
Julian, I have to say, this was a very fun circuit to build. I used a Motorola MC74F374N chip. I had been trying to find an octal flip-flop and found on in an ancient ISA Sound Card from the early 1990's. I also can't say how many times I've watched this video over the last month, but I found it fascinating. I watch a lot of your videos, since you seem to be one of you, besides bigclive, that explain things very well. I've also come across some xor and and gates i've been playing with. Thanks for the great videos and HOWDY from Houston, TX.
do you have the diagram?
The flip-flop (or D-latch ) behaves correctly. Imagine how static RAM bechaves just after you power it on. D-latch remembers input state on clock change (rising edge?), and that it all. So, you have to deliberately inform (put 1 or 0 into) the D-Lach what to store and control it all the time. Use 5V + small capacitor (100nF), then pull down (resistor 10k), to the first D-Flip-Flop. Have a nice day.