Lpc2000

Mukund Deshmukh wrote:
> What is maximum baud rate achievable in isolated RS232. We are unable to get
> more than 38400.

That depends on your choice of opto, drive and load resistors more than 
anything else, these are your limiting factors. Assuming the opto is 
fast enough and sensitive enough (Tplh/Tphl and CTR) then you should 
drive the optos as hard as you can as you will need as low a value 
collector load resistor as possible to achieve a fast low to high on the 
opto collector ...... and so on.

??? That's ok, if you want speed, don't use unbuffered optos, go for 
something with a logic buffers built-in, these are designed for speed.

*Peter*