If you look at the datasheet you'll be able to find out whether the use of this device in any way limits your system performance or the like. Unless you're anxious to run your 805x-derivative at a very high rate, it probably won't.

It's a knee-jerk reflex often observed in this forum that, rather than answering your question, folks will tell you what a bad choice you've made, which may or may not be true.

Once you have all the details, you'll find that it's not difficult to interface a 16C550 to any external-bus scheme. Whether it's a particularly good choice is not really the issue. It will, however, require that you provide precisely the right external oscillator to the 16C550 and that you limit the oscillator to the 805x to a rate that allows it to meet the access-time limitations of the 16550.

RE