CD40174 DATASHEET PDF

Where to use CD IC The IC CD is used for counting applications, it has the capability to turn on 10 outputs sequentially in a pre-defined time and reset the count or hold it when required. It also has the capability to indicate the status of counting using Carry pin. We have 10 output pins ranging from Q0 to Q9, these pins can be connected to any load but we are using LEDs here as shown in the circuit below. This IC will increment the count from 0 to 9 Q0 to Q9 each time it senses a high pulse from the clock pin pin The output changes sequentially from Q0 to Q9 for every high pulse from the Clock pin, but this sequence can be interrupted by two pins.

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Each LED must have its own current limiting resistor. I also removed 1K resistor. Your datashet resistor feeding 9V to the circuit makes it much worse. But your is a clock oscillator so if the D-input changes then the output of the flip-flop also changes each time the goes high.

You still have all the same problems as you had before yourevised the schematic. Datasheets search archive of electronic components datasheets You must log in or register to reply here. I have connected 0. The datasheet for the LM shows that two decoupling supply bypass capacitors are needed.

I think this maybe because i left inputs open. Get rid of the useless 1k resistor at the battery. For a better experience, please enable JavaScript in your browser before proceeding. Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets.

The is not a counter, it is just 6 flops with a common clock. By continuing to use this site, you are consenting to our use datashee cookies. Media New media New comments Search media. There are many mistakes: Potentiometer Questions Started by norbss Yesterday at Input to are tied down to high. Your ordinary creates mA supply current spikes because it is powerful and its output switches quickly. A real memory chip should be able to store bits when input logic are gone. Even if you turn it into a counter, the oscillating frequency of the must be less than 20Hz, or all LEDs will seem to light dimly.

I suppose what kind of IC is this that creates glitch in power supply? But I think whats the use when its input needs fix logic to either high or low. I am on seven electronics chat forums. Articles Top Articles Search resources. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. When the tries to conduct mA then the supply voltage to the drops to zero. Click here to register cd To participate you need to register. TOP Related Posts.

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