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stm32f100 vs. stm32f103 for power control applications..

Question asked by mcmac.michael on Apr 27, 2013
Latest reply on Apr 30, 2013 by jj.sprague
Hi All,
    I've rummaged through the archives but didn't really see what
I'm looking for here.  We have a few PWM power control designs
based on the Atmel ATTINY861A which provides fairly complete
support for this application space.  However we're limited by its
flash capacity and 8-bit architecture.

I've been looking at both the F100 and F103 STM32 devices and
was hoping someone who has dug into the functional limitations
and quirks of these devices may be able to offer some insight.
Specifically it appears the F100 may offer support of more PWM
channels compared to the F103, but I believe the F103 can support
at least three independent complimentary PWM channels with
deadtime control.  And if I read correctly both devices support
hardware PWM cycle termination and A/D synchronized to PWM
cycle.  However the 3X clock speed of the F103 is well worth the
price bump assuming we're not foregoing any power application
specific functionality which may be unique to the F100.

Aside from that any cautions on functionality loss and/or
restriction specific to power control applications with the lower
pin count packages (32,48) relative to 64 LQFP versions?

Thanks,

-mm

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