At 06:51 PM 4/19/2007, you wrote:
>Dario,
>
>were it that simple...
>
>fact is because these devices are rotary faders (a little thing I designed
>for a DIY-synth project as detailed on the synth-diy mailing list), the
>layout, spacing of components is critical. So basically there are 3 very
>small pcb's orientated: 1 x horizontally, 2 x vertically (1 either side of
>the "main" board).
>
>So actually, its not a case that I couldnt put a 40 pin MCU on there
>(providing of course that it would still work after I heated it up and bent
>it round a 180 degree angle), but that I have to split up the functionality
>into smaller units.
>
>The smd maxim chip looks pretty ideal, but its not absotively clear to me if
>I'll be able to use it to power different devices from the same chip (i.e 2
>x 3 digit 7 segs + 1 x 10 seg level meter + a couple of status lights for
>mute, channel select etc) I'll read the docs later tonight and find out.
>
>Regards
>
>EK

Its definitely possible to do that with the Maxim 7219 series.
I have one here that is running 1 x 10 segment bargraph, 4 x seven 
segment displays, and 6 x individual leds
all off the one chip.

Mark


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