Anonymous
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Jul 08, 2014
09:12 AM
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Jul 08, 2014
09:12 AM
Does anybody know how many capacitive keys (CSD) I can use on CY8C4014LQI-421 ?
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3 Replies
Sep 10, 2014
05:51 AM
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Sep 10, 2014
05:51 AM
the part number you have mentioned is a 16-QFN.
It has 9 Capsense pins capable of doing 9 Capacitive keys.
1 pin will go for CMOD.
So, you can do 8 capacitive keys.
if you need shield, then 1 pin will be gone for CTANK and 1 for Shield.
So, you can have 6 Capacitive keys.
I assume you want buttons when i say keys, if you want Sliders, then the calculation will be different.
pls let me know your requirements to help better.
Cheers
Praveen
Praveen
Anonymous
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Mar 03, 2015
06:24 AM
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Mar 03, 2015
06:24 AM
Please note that Ctank is not always needed, even if shield is used. It is only needed when the shield capacitance is very high. For more information on this, please refer to the Capsense design guide for the respective device.
Jul 28, 2015
04:40 PM
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Jul 28, 2015
04:40 PM