external devices. FN PACKAGE e Supports flexible PC/XT and AT port address decoding, interrupts, PLASTIC and bus cycles CASE 779 100% compatible with NS16450 and NS8250 UART ; . : Ordering Information e Two full-duplex asynchronous receivers/transmitters MCCS16C452FN e Programmable serial interface character length MCCS16C462FN e Programmable baud rate for each receiver and transmitter e Full modem control functions e Double buffering in character mode False start-bit detection e Centronics printer interface e Parallel port extended mode supports bidirectional input and output Paraliel port supports level sensitive interrupts PIN ASSIGNMENT = Cc So MN to = 3 x CSSEt PDM ERROR [PTOE ACK PE BUSY SLCT VDD SIN1 Vg DCDI ss Rit DSR1 Xin 9 8B 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61 Readable i di SOUT] 10 60] INTSEt e ore o e vero mt vs oor ora 41 591] IRQ7PA e Direct drive for parallel port interface _ aw P P RTSt | 12 581) SLIN e 1.5 micron CMOS technology e 68-lead PLCC package e Operating temperature