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PC87351 Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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PC87351 Datasheet(HTML) 1 Page - National Semiconductor (TI) |
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1 / 86 page  www.national.com PRELIMINARY May 1998 PC87351 PC98 and ACPI Compliant SuperI/O with System Wake-Up Control Highlights General Description The PC87351, a member of National Semiconductor’s Su- perI/O family of integrated PC peripherals, is a 128-pin, PC98 and ACPI compliant SuperI/O that offers a single-chip solution to the most commonly used ISA peripherals. The PC87351 incorporates: a Floppy Disk Controller (FDC) which is available also on the Parallel Port pins as a multi- plexed option (PPM), two enhanced Serial Ports, Infrared Comunication Port (HP-SIR, Sharp-IR, and Consumer Electronics-IR), a full IEEE 1284 Parallel Port, a Keyboard and Mouse Controller (KBC), System Wake-Up Control (SWC), General-Purpose Input/Output (GPIO) Ports with assert interrupt capability, and Fan Speed Control (FSC). Outstanding Features • Fan Speed Control for two fans • 11 General-Purpose I/O Ports, bi-directional, with in- terrupt assertion capability • System Wake-Up Control powered by V SB, generates power-up request in response to preprogrammed key- board or mouse sequence, modem, telephone ring, and two general-purpose events without an external clock • Serial or parallel IRQ support • Programmable write protect for Floppy Disk Controller • Power-fail recovery support Block Diagram Controller System Wake-Up IEEE 1284 Wake-Up Parallel Port Ports Keyboard and Mouse Interface Floppy Disk Controller Keyboard and Mouse Control Events Host Interface ISA Interface SERIRQ I/O Ports General-Purpose I/O PWUREQ Serial Port 2 Serial Infrared Interface Interface Serial Port 1 Serial Interface VSB VBAT FANOUT0 FANOUT1 Fan Speed Control with IR Floppy Drive Interface Interface Parallel Port/ Floppy Drive PPM IBM®, MicroChannel®, PC-AT® and PS/2® are registered trademarks of International Business Machines Corporation. Microsoft® and Windows® are registered trademarks of Microsoft Corporation. TRI-STATE® is a registered trademark of National Semiconductor Corporation. © 1998 National Semiconductor Corporation |
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