WPCN381U

www.DataSheet4U.com WPCN381U Legacy-Reduced SuperI/O with Fast Infrared Port, Two Serial Ports and GPIOs Product Brief December 2006 Revision 1.0 WPCN381U Legacy-Reduced SuperI/O with Fast Infrared Port, Two Serial Ports and GPIOs General Description The WPCN381U, a member of the Winbond LPC SuperI/O family, is targeted for legacy-reduced ultra-light portable applications. The WPCN381U is PC2001 and ACPI compliant, and features a Fast Infrared port (FIR, IrDA 1.1 compliant), two Serial Ports and General-Purpose Input/Output (GPIO) support for a total of 11 ports. The WPCN381U is a “no-frills” solution for the new generation of notebook systems, providing just the essential functions. Outstanding Features ■ ■ ■ ■ Pin and software compatible with the Winbond 87381 Fast Infrared Port (FIR) Two Serial Ports LPC bus interface, based on Intel’s LPC Interface Specification Revision 1.1, August 2002 (supports CLKRUN and LPCPD signals) PC2001 and ACPI Revision 3.0 compliant 11 GPIO ports, including 6 with IRQ assertion capability Two testability modes (XOR Tree and TRI-STATE® device pins). 5V tolerant and back-drive protected pins (except LPC bus pins) 48-pin LQFP package ■ ■ ■ ■ ■ System Block Diagram I/O Ports South Bridge LPC Bus Portable Platform WPCN381U EC (WPC876xL) Serial Interface FIR/Serial Interface TPM (WPCT200) © 2006 Winbond Electronics Corporation www.winbond.com WPCN381U www.DataSheet4U.com Features ■ Fast Infrared Port (FIR) — Software compatible with...