NC1D52D63D74RCLK5NC6SIN7SOUT8CS09CS110CS2#11BAUDOUT#12NC13XIN14XOUT15WR1#16WR217VSS18RD1#19RD220NC21DDIS22TXRDY#23ADS#24NC25A226A127A028RXRDY#29INTRPT30OUT2#31RTS#32DTR#33OUT1#34MR35NC36NC37CTS#38DSR#39DCD#40RI#41VCC42D043D144D245D346D447NC48