Hi,
May I know what are the differences between MAX3221E and TRS3221E?
Is TRS3221E more cost competitive?
Thanks,
Phil
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Philip,
There is no difference between the two TI devices.
You may use them interchangeably.
TRS is just a TI brand name.
Philip,
You can try same names without the "E" suffix. The reduction in ESD protection should come with a price reduction.
If you have a 5V supply and can use a different pin out, MAX232 and MAX202 are low price.