ST16C552 ST16C552A DUAL UART WITH 16-BYTE FIFO AND PARALLEL PRINTER PORT December 2003 DESCRIPTION The ST16C552/ST16C552A (552/552A) is a dual universal asynchronous receiver and transmitter (UART) with an added bi-directional parallel port that is directly compatible with a CENTRONICS type printer.
The parallel port is designed such that the user can configure it as general purpose I/O interface, or for connection to other printer devices.
The 552/552A provides enhanced UART functions with 16 byte FIFO’s, a modem control interface, and data rates up to 1.
5Mbps.
Onboard status registers provide the user with error indications and operational status.
The system interrupts and control may be ...

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