On Fri, 2006-03-10 at 07:20 -0800, alan smith wrote:
> Data sheets are always worst case....and typically I have found most devices never reach that max worst case.  It depends on what its doing, what its connected to (driving).  I use those numbers for a power budget, making sure the supplies can provide that amount of power, and always assume and hope that the actual is much lower.  Its when its pulling more current....you have to wonder whats going on

For programmable devices like PICs and FPGAs I'd agree with you, the
power usage is usually speced much higher then in actual use since they
assume maximum draw on I/Os, maximum MIPS, etc.

The ENC28J60 is a fixed function device, aside from say grounding an
output set at one I don't really see how it could consum more power or
less while operating (ignoring possible sleep modes). It's frequency is
fixed (25MHz), it's IO is fixed, so there shouldn't be too much power
fluctuation while operating.

TTYL

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