Re: 5V I/O with 1.8V Core

"Symon"  wrote
>
> "Jim Granville" wrote
> > Following the recurring thread of 5V IO,
> > the loss thereof, and 'the price of progress', here are some
> > of the newest numbers from the uC industry :
> >
> >                      Philips LPC2129      Spartan IIE
> > General        256KF/ARM              Advanced FPGA
> >
> > Vcore            1.8V                            1.8V
> > Vio                <5.5V                            <3.6V
> > Icctyp           10uA                            10mA
> > IccMAX       <500uA                      <200mA
> >
> > Icc numbers are Static, ie represent standby power levels.
> > FPGA of similar core Vcc is chosen, and smallest IIe device is chosen
> > to avoid too much die-area skew effect.
> > -jg
>
> Hi Jim,
>     I haven't used this Philips part but, just so I know you're not
> comparing apple and oranges,  this Philips part supports upteen different
> I/O standards? From 3.3V LVTTL to 2.5V LVDS at 622M?
>             cheers, Syms

 Sorry if this was not clear - this is from the uC industry, so it is
comparing
'like process' capability (~ 0.18u) - what the silicon DOES is, of course,
quite different.
 However, the fundamentals like IO and leakage are a bit more portable and
it's
good to compare real numbers when a vendor claims some 'spec erosion' is
the 'price of progress' - implication:  'We couldn't do anything about
that'.

-jg