PC87332VLJ Datasheet | National Semiconductor

PC87332VLJ (3 3V 5V) and PC87332VLJ-5 (5V) (Super I O TM III Premium Green) Floppy Disk Controller Dual UARTs IEEE1284 Parallel Port and IDE Interface PRELIMINARY May 1995 PC87332VLJ (3 3V 5V) and PC87332VLJ-5 (5V) (Super I O TM III Premium Green) Floppy Disk Controller Dual UARTs IEEE1284 Parallel Port and IDE Interface General Description The PC87332VLJ and PC87332VLJ-5 are single chip solutions for most monly used I O peripherals in ISA EISA and Micro Channel based puters It incorporates a Floppy Disk Controller (FDC) two full featured UARTs an IEEE 1284 patible parallel port and all the necessary control logic for an IDE interface Standard PC-AT address decoding for all the peripherals and a set of configuration registers are also implemented in this highly integrated member of the Super I O family Advanced power management Features and mixed voltage operation in the VLJ version make the PC87332 chips an ideal for low-power and or portable personal puter applications The PC87332 FDC uses a high performance digital data separator eliminating the need for any external filter ponents It is fully patible with the PC8477 and incorporates a superset of DP8473 NEC m PD765 and N82077 floppy disk controller functions All popular 5 25 and 3 5 floppy drives including the 2 88 MB 3 5 floppy drive are supported In addition automatic media sense and 2 Mbps tape drive support are provided by the FDC The two UARTs are fully NS16450 and NS16550 patible Both ports support MIDI baud rates (Continued) Features Floppy Disk Controller Software patible with the DP8473 the 765A and the N82077 16-byte FIFO (disabled by default) Burst and Non-Burst modes Perpendicular Recording drive support New high-performance internal digital data separator (no external filter ponents required) Low-power CMOS with enhanced power-down mode Automatic media-sense support Supports fast 2 Mbps and standard 1 Mbps 500 kbps 250 kbps tape drives Bidirectional Parallel Port...