A long time ago, in a galaxy far away, there were computers that came with DE-9 serial ports that would let you read/write 8-bit serial data on two lines. Those days are gone, now we have USB only. Many modern chips have a built in USB native peripheral so you can connect to a computer, but there are still lots of chips that don't! In that case, you'll want a converter chip. Let's see what is available in the market and some things to watch out for when spec'ing them.

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