Re: Microcontroller with 7V supply and I/O tolerance ?

From: David (mangled_us_at_yahoo.com)
Date: 10/24/04

  • Next message: Michael: "Re: Remote temp measurement" 
    Date: 24 Oct 2004 05:17:17 -0700

    > Since I/O is beteen 4 and 7 volts, why do you not connect the GND of the
    > Micro to 4 Volts.
    > Most CPUs will handle that.

    Hi Ulf, thanks for responding.

    I take it from your answer that Atmel don't have such a chip in their
    armoury ? I'm interested to hear from a chip mfr what the reasons
    behind this might be ? Of course I understand that CPU performance is
    all optimised for certain voltages and that device densities would
    suffer. But still... a device with a higher supply and I/O voltage
    tolerance must surely have many applications ? Anything that runs of
    batteries would be easier to design, for instance. So how about
    persuading the chaps back at base for us ? :-)

    Regards,

    David

  • Next message: Michael: "Re: Remote temp measurement"