next-generation PMU discussion / Memory 1.8V
andy at openmoko.com
Mon Apr 21 16:01:25 CEST 2008
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Somebody in the thread at some point said:
| Andy Green wrote:
|> The price is a lot...
| Yeah. Do you have an estimate how many GPIO pins we really need in
| the end ? Maybe we can find something a little smaller, even if it's
| in a QFN package, not BGA.
Yeah we can do with the smaller on I proposed earlier in the thread in 64QFN
but there is a tradeoff in ADC and lack of peripherals -- it'll have to
be bitbanged for things like SPI to motion sensors, maybe I2C to CPU.
It complicates things and increases power consumption. But it is quite
a bit less than half the price, probably the case in FIC money as well.
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