robb wrote:

"Eeyore" wrote
James Sweet wrote:

The 8051 was getting warm? I didn't think those produced
enough heat to feel?

I seem to recall that the NMOS versions (which he has) draw a
little over 100mA.


the datasheet says 125 mA dissipates 1W

125 mA sounds about right. That's 625mW not 1W though. The datasheet value for
dissipation is almost certainly the maximum theoretical allowed value.

Graham