ST16C552 - Exar Corporation

ST16C552 DUAL UART WITH 16-BYTE FIFO AND PARALLEL PRINTER PORT

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 p.

Features

-RXRDYA PLCC Package -RXRDYB 61 60 59 58 57 56 55 54 ERROR 63 -DSRB BIDEN -BUSY SLCT -CDB -CSB GND GND VCC ACK RXB 62 -RIB CLK Added features in device revision "F" and newer:
• 5V Tolerant Inputs
• Pin to pin and functional compatible to ST16C452/ 452PS, TL16C552
• 2.97 to 5.5 volt operation
• Software compatible with INS8250, NS16C550
• 1.5 Mbps transmit/receive operation (24MHz)
• 16 byte transmit FIFO
• 16 byte receive FIFO with error flags
• Independent transmit and receive control
• Modem and printer status registers
• UART port and printer port Bi-directional
• Printer port direction .