[Arm-netbook] IC for analog and digital buttons (EOMA-68)

peter green plugwash at p10link.net
Sun Jul 27 15:58:26 BST 2014


Miguel Garcia wrote:
> We are designing a handheld-game console (based on EOMA-68).
>
> The problem is that EOMA-68 has very few GPIO.
>
> We have 17 digital buttons, 2 analog joystick (
> http://www.digikey.com/product-detail/en/254TA103B50B/254TA103B50B-ND/1755918
> ) and 2 analog triggers (
> http://www.digikey.com/product-detail/en/EVA-W7NR04B34/P13569-ND/1135944
> ).
>
> Luke will use on the tablet the next IC: PCA9536.
>
> However, this component does not meet our requirements.
>
> Does anyone know a IC that meets these requirements (at least 17
> digital buttons and at least 4 ADCs)?
>   
I count 6 ADCs channels required.

I suspect the only single-chip soloution would be a microcontroller of 
some sort.



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