2014-08-07 8:57 GMT+02:00 Luke Kenneth Casson Leighton lkcl@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-product...
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/...
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.