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

[Miguel Garcia]

2014-08-07 8:57 GMT+02:00 Luke Kenneth Casson Leighton <lkcl at lkcl.net>:
>  ...except do try to find one that's a bit less than $0.95 in volume!!
> http://www.futureelectronics.com/en/technologies/semiconductors/comm-products/i2c/Pages/4007443-PCA9575PW2,118.aspx?IM=0

If SPI is better, MCP23S17 is an interesting alternative.

$1.00 en volume:
http://www.digikey.com/product-detail/es/MCP23S17-E%2FSS/MCP23S17-E%2FSS-ND/894277

Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/21952b.pdf

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Regarding the analog-to-digital IC, we have this IC: MCP3008

It is SPI, but I do not see that this has INT. Should we look for
other IC with INT?

Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/21295d.pdf

Thanks.