NS16550A - UART Design and Application Considerations
National Semiconductor (now Texas Instruments)
Key Features
while maintaining software compatibility These development paths have been brought together in a new UART from National Semiconductor designated the NS16550A The NS16550A has all of the registers of its two predecessor parts (INS8250 and NS16450) so it can run all existing IBM PC XT AT RT and compatible serial port software In addition it has a programmable mode which incorporates new high-performance features Of course all of these advanced features are useful in any asynchronous serial communi.
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NS16550A Datasheet
