Lpc2000

At 18:29 27.04.2006 +0530, you wrote:
> > Yes, I have implemented isolated coms using HP2531s via 220R resistors
> > without any problems. Vol/Voh are not as relevant as Iol/Ioh when
> > driving leds and optos. The values given in the datasheet of 4ma just
> > means that you can draw that much and still have the output voltage
> > within logic levels *if* you were also driving other logic inputs.
> >
>
>What is maximum baud rate achievable in isolated RS232. We are unable to get
>more than 38400.

That depends very heavily on the optocoupler you use; some of them can be 
used for 9600 baud only, some are very fast. Have a look in the specs of 
the couplers (I currently do not have a recommendation for you).

Herbert


>Best Regards,
>
>Mukund Deshmukh.
>Beta Computronics Pvt Ltd
>10/1, IT Park, Parsodi,
>Nagpur-440022
>Cell - 9422113746
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