PC87383 Datasheet, PDF (1/77 Pages) National Semiconductor (TI) – Legacy-Reduced SuperI/O with Fast Infrared Port, Serial Port, Parallel Port and GPIOs for Portable Applications

December 2003
Revision 1.1
PC87383
Legacy-Reduced SuperI/O with Fast Infrared Port, Serial
Port, Parallel Port and GPIOs for Portable Applications
General Description
The PC87383, a member of the National Semiconductor
LPC SuperI/O family, is targeted for a wide range of porta-
ble applications. The PC87383 is PC2001 and ACPI com-
pliant, and features Fast Infrared port (FIR, IrDA 1.1
compliant), Serial Port, Parallel Port and General-Purpose
Input/Output (GPIO) support for a total of 21 ports.
Outstanding Features
s LPC bus interface, based on Intel’s LPC Interface
Specification Revision 1.1, August 2002 (supports
CLKRUN and LPCPD signals)
s Fast Infrared port
s PC2001 and ACPI Revision 2.0 compliant
s Serial IRQ support (15 options)
s Protection features, including GPIO lock and pin con-
figuration lock
s 21 GPIO ports, including 14 with “assert IRQ” capabil-
ity
s XOR Tree and TRI-STATE^ device pins (or ICT) test-
ability modes.
s 5V tolerant and back-drive protected pins (except LPC
bus pins)
s 64-pin TQFP package
System Block Diagram
South Bridge
LPC Bus
Portable
Platform
TPM
PC87383
Embedded
Controller
Parallel Serial Infrared _I/O
Port Interface Interface _Ports
Interface
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