> Have you considered another core? The ARM wasn't designed for low > power operation, really. Ulf will tell you that Atmel is best, of > course :-)Not really. I thought the ARM7 would be the most mips for under 10mA. I'd still gravitate towards ARM7 for all the tools available. I'm aiming for ecos, graphic LCD, and for a slightly different project, linux, for which I'm also looking for low power stacked flash+ram. I'll take anything 16-bit+ that can do ecos and linux, I think I'm asking for 32-bit.> PIC24 is a good compromise, with a wide instruction word (24 bits) but > 16 bit data paths. It is (I believe) 0.25 micron. Not that geometry is > going to give you a reliable idea of consumption... It performs better > at 40 MHz than an ARM7 at 60MHz... Also has an excellent interrupt > structure and low cost tools... Its host port can be used for > interfacing to external LCD etc.Speaking of 16-bitters, I love the specs on the TI parts. Someone should do that for arm. I'd spend the money for small quantities for much more expensive ARM chips if theyre better than 90nm and perform like champions on under 10mW. They dont exist.
Lowest power ARM MCU?
Started by ●May 1, 2006
Reply by ●May 4, 20062006-05-04
Reply by ●May 4, 20062006-05-04
ghazanhaider wrote:>> Have you considered another core? The ARM wasn't designed for low >> power operation, really. Ulf will tell you that Atmel is best, of >> course :-) > > Not really. I thought the ARM7 would be the most mips for under 10mA. > I'd still gravitate towards ARM7 for all the tools available. I'm > aiming for ecos, graphic LCD, and for a slightly different project, > linux, for which I'm also looking for low power stacked flash+ram. > > I'll take anything 16-bit+ that can do ecos and linux, I think I'm > asking for 32-bit. >The AT91SAM9261 has a built in framebuffer. This is useful since you can power down external memory and still keep the display alive. -- Best Regards, Ulf Samuelsson ulf@a-t-m-e-l.com This message is intended to be my own personal view and it may or may not be shared by my employer Atmel Nordic AB