USB to RS232 one chip solution

May 05, 2008 23 Replies

book. I've had great success using them in a project

Silabs has a nice part, too, and it doesn't even need a quartz. Its also very easy to generate the driver code with your company name etc. I found it to be the best all-around at the time for virtual com port.

Mark

The main problem with the Silabs CP2102/3 is the fine pitch DFN28 package. It looks like it would be nearly impossible to hand solder. The TI parts look good, and they are in leaded SMT packages that can be hand soldered. But at this point I am going with the PIC18F2450. It gives me the most versatility, and I learned a lot about USB when I tweaked the sample code. Having a device available in DIP and SOIC packages is also a plus.

Paul

looks like it would be nearly impossible to hand

be hand soldered. But at this point I am going with

USB when I tweaked the sample code. Having a device

Its not as bad as it looks. Hot air gun is needed, though. DFN is becoming popular, it seems (with manufacturers), so its better to get used to it as you may not have a choice in the future. The problem I had with TI is that you needed EEPROM, if I remember correctly. AFAIR something about it was a show stopper for me.

Mark

looks like it would be nearly impossible to hand

be hand soldered. But at this point I am going with

USB when I tweaked the sample code. Having a device

As it happens, Sparkfun used a CP2103 in part of their tutorials on SMT and hot air. I haven't tried any of the "hidden pad" parts, myself; there's a certain comfort level when you can actually *see* the pins...

Rich Webb Norfolk, VA

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