SCH3223 LPC IO with HWM, Dual UARTs, Power Button and Reset Support Product Features General Features - 3.3 Volt Operation (SIO Block is 5 Volt Tolerant) - Programmable Wake-up Event (PME) Interface - PC99, PC2001 Compliant - ACPI 2.0 Compliant - Serial IRQ Interface Compatible with Serialized IRQ Support for PCI Systems - ISA Plug-and-Play Compatible Register Set - Four Address Options for Power On Configuration Port - System Management Interrupt (SMI) - 8 Dedicated General Purpose I/O pins - 2 GPIOs with VID compatible inputs - Security Key Register (32 byte) for Device Authen- tication Low Pin Count Bus (LPC) Interface - Supports Bus frequencies of 19MHz to 33MHz Watchdog Timer Resume and Main Power Good Generator 2 Full Function Serial Ports - High Speed NS16C550A Compatible UARTs with Send/Receive 16-Byte FIFOs - Supports 230k, 460k, 921k and 1.5M Baud - Programmable Baud Rate Generator - Modem Control Circuitry - 480 Address and 15 IRQ Options - Support IRQ Sharing among serial ports - RS485 Auto Direction Control Mode Hardware Monitor - Monitor Power supplies (+2.5V, +5V, +12V, Vccp processor voltage), VCC, Vbat and Vtr. - Remote Thermal Diode Sensing for One External Temperature Measurement accurate to 1.5C - Internal Ambient Temperature Measurement - Limit Comparison of all Monitored Values - Programmable Automatic FAN control based on temperature IDE Reset Output and 3 PCI Reset Buffers with Software Control Capability Power Button Control and AC Power Failure Recovery Temperature Ranges Available - Industrial (+85C to -40C) - Commercial (+70C to 0C) 64-Ball WFBGA RoHS Compliant Package 2016 Microchip Technology Inc. DS00002107A-page 1SCH3223 TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors microchip.com. We welcome your feedback. Most Current Data Sheet To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: