ST16C552 DUAL UART WITH 16-BYTE FIFO PARALLEL PRINTER PORT
ST16C552A Dual UART with 16-Byte FIFO and Parallel Printer Port(?????????????????????16????????????????????????)
ST16C552ACJ68 DUAL UART WITH 16-BYTE FIFO PARALLEL PRINTER PORT
ST16C552AIJ68 DUAL UART WITH 16-BYTE FIFO PARALLEL PRINTER PORT
ST16C552CJ68 DUAL UART WITH 16-BYTE FIFO PARALLEL PRINTER PORT
ST16C552IJ68 DUAL UART WITH 16-BYTE FIFO PARALLEL PRINTER PORT