I am currently looking at a 4017B Decade Counter Data Sheet. As I look at the Logic Schematic for this IC (http://www.ti.com/lit/ds/symlink/cd4017b.pdf) I can see several sqaure boxes label D, C, ...
I am comfortable with rudimentary 555 circuits and other basics, but I have something a little bit beyond me now. I need to have three separate mosfets A, B, and C all turn on and off in sequence. I ...
I would like to test a CD4018B IC. I hooked up five LEDs to the Q1 to Q5 pins, Vdd to 5V and Vss to ground. The five LEDs light up as soon as power is connected. How can I advance the counter? I put ...
I have a circuit that makes uses of a decoder to command the latch line of 8 latches. To avoid spurious latching that could occur in transitions, I disable the decoder output while I change the input ...
NOTE: I have made some changes since the original question, the number of columns is 114 not 45, this may affect some of the answers below. I'm working on a project with a large LED matrix I'm ...
Schematic (from here): Why are four legs connected to the green LED and two to the amber LED in the 4017 traffic light circuit? Shouldn't it be able to do with only one leg per LED?