USB Chip

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1

Hello

We had a question about the USB chips.

For the use of USB in RS485 and RS232 and TTL interface, three FT232RL and CH340 and PL2303 chips have been developed by three different companies.

The question is, is there a fundamental difference between the three chips?

FT232RL chip is more expensive than CH340 or PL2303! Can we say FT232RL is superior to CH340 or PL2303? And what is this advantage? Can we say FT232RL performs better than CH340 or PL2303? And what is this good performance?

Are CH or PL chips less quality or poorer than FT chips?

Sparkfun used two FT and CH chips for TTL converter! Does your converter with FT chip have a clear advantage over CH?

Please Help for select converter with FT or CH or PL.

Thanks.

2

Thanks for posting!

They really all do the exact same thing and it doesn’t really matter which one you choose. I prefer the FTDI based boards though since the drivers for those are widely available and updated frequently. The CH340’s are cheap, but some folks have trouble installing drivers. If you’re wanting to save a few bucks and don’t mind troubleshooting driver issues, those might be an option for you.

At the end of the day, once you have them setup and working, they all perform the same.