If you really don't need more than the speed of the Atmel devices, and want the very lowest power possible, various M3 devices beat it easily for maybe $2 to $3.
Steve On 05/21/2012 09:47 PM, Anthony Cutler wrote: > > My main concern with powerful ARM processors is power efficiency. We > don't need 700MHz, and even with underclocking and power-saving modes > I'm really curious how efficient these Corex A8s can get. > > The Atmel 32bit AVR UC3 chips pull .8mW/MHz: > www.*atmel*.com/Images/doc7919.pdf <www.atmel.com/Images/doc7919.pdf> > > At 66Mhz this is roughly 50mW. Of course it depends on the radio, but > it would be good to know what kind of power budget we have. I'm > concerned if we're going to pull power from a battery we've really got > to think about power efficiency too. Nothing annoys me more then > something that eats batteries! > > > ----------- > Cortex A8 SoCs at 700MHz or more can bought for $5 or less in medium > quantities. There is no shortage of reasonably priced processors with a > good peripheral mix these days. > > Steve ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
