Not sure how to ask this but you get the idea.

Is it the guts of the chip that use so much power or the ethernet magnetics that it drives?
Does current draw depend on if it's connected to another device? Transmit draw more?

-----Original Message-----
>From: "palam.c" <palam.c@gmail.com>
>Sent: Mar 10, 2006 4:53 AM
>To: "Microcontroller discussion list - Public." <piclist@mit.edu>
>Subject: [PIC] ENC28J60 Power Consumption
>
>Hi all,
>I am testing ENC28J60 + PIC 18f2550 for an ethernet project.
>I found that ENC28J60 circuit alone consumes about 150mA(at 3.3v).
>In Datasheet max Idd is specified as 250mA. It seems to be quite
>big for me.
>ENC consumes that big power ? My observation is true or not ?
>
>regards,
>palani.
>
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