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Crystal oscillator using a CD counter. So maybe I’ll do.
About Us Contact Hackaday. Reset the counting we are now ready to count. This device contains protection circuitry to guard against cd455 due to high.
That’s exactly what I did! All outputs are TTL compatible. Your Password Forgot your password?
(PDF) CD4553 Datasheet download
Here is an Octave code that can be useful to you: A clock input CLK. A low-power selectable frequency generator. The only “tricky” part is that we need an inverter at the Q1 output of thesee figure 1. T A Ambient Temperature Range. Thanks to that, we will be able to trigger the different inputs sequentially. So it looks like we need to have an oscillator on which we can easily change its frequency. A master reset input Ccd4553. Input or Output Voltage Range.
You are about to report the project ” Metronome “, please tell us the reason. So, what we want to do is: The best thing to do is then to add a decimal counter between the CD and the CD A latch enable input LE. You will see that I realised the display and the sound generator separately. Together with a few resistors and capacitors, this leads to the following: Among the various existing crystal oscillators, I used a CD with a 32, Hz quartz.
Because that an interesting challenge, and that’s good to remember the basics, and also because I found that this is actually totally feasible.
Digit select outputs provide display control. DC Supply Voltage Range. However, precautions must be taken to avoid.
I also added a high-pass filter at the Q3 output in order to covert the voltage into a pulse. Already have an account?
Maximum Ratings are those values beyond which damage to the device may occur. So here we are, everything’s now ready for the display. I out Output Current. Become a member to follow this project and never miss any updates Become a member.
CD4553: 3−Digit BCD Counter
The reason for that low frequency is that we will need a much higher frequency for the clock input of the CD Using a simple counter like the CD will perfectly work for us. Become a member to follow this project and never miss any updates. This device is used in instrumentation counters, clock displays. So, we need a clock cf4553, with a variable frequency in order to set up the tempo.
A careful choice of these components is necessary to set the tempo range of our metronome. Metronome A metronome cd45553 only uses common electronic components, and doesn’t rely on a microcontroller.