SCH3112/SCH3114/SCH3116 LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports Enhanced Digital Data Separator Product Features - 2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250 General Features Kbp Data Rates - 3.3 Volt Operation (SIO Block is 5 Volt Toler- - Programmable Precompensation Modes ant) Keyboard Controller - Programmable Wake-up Event (PME) Inter- - 8042 Software Compatible face - 8 Bit Microcomputer - PC99, PC2001 Compliant - 2k Bytes of Program ROM - ACPI 2.0 Compliant - 256 Bytes of Data RAM - Serial IRQ Interface Compatible with Serial- - Four Open Drain Outputs Dedicated for Key- ized IRQ Support for PCI Systems board/Mouse Interface - ISA Plug-and-Play Compatible Register Set - Asynchronous Access to Two Data Registers - Four Address Options for Power On Configu- and One Status Register ration Port - Supports Interrupt and Polling Access - System Management Interrupt (SMI) - 8 Bit Counter Timer - 40 General Purpose I/O pins - Port 92 Support - 6 GPIO with VID compatible inputs - Fast Gate A20 and KRESET Outputs - Support for power button on PS/2 Keyboard - Phoenix Keyboard BIOS ROM - Security Key Register (32 byte) for Device Multiple Serial Ports Authentication - SCH3112 - 2 Full Function Serial Ports Low Pin Count Bus (LPC) Interface - SCH3114 - 4 Full Function Serial Ports - Supports LPC Bus frequencies of 19MHz to 33MHz - SCH3116 - 4 Full Function and 2 Four-Pin Serial Ports Watchdog Timer - High Speed NS16C550A Compatible UARTs Resume and Main Power Good Generator with Programmable Clock Output to 16 HZ. - Send/Receive 16-Byte FIFOs 2.88MB Super I/O Floppy Disk Controller - Supports 230k, 460k, 921k and 1.5M Baud - Licensed CMOS 765B Floppy Disk Controller - Programmable Baud Rate Generator - Supports Two Floppy Drives - Modem Control Circuitry - Configurable Open Drain/Push-Pull - 480 Address and 15 IRQ Options - Supports Vertical Recording Format - Support IRQ Sharing among serial ports - 16-Byte Data FIFO - RS485 Auto Direction Control Mode - 100% IBM Compatibility Infrared Port - Detects All Overrun and Underrun Conditions - Multiprotocol Infrared Interface - Sophisticated Power Control Circuitry (PCC) - IrDA 1.0 Compliant Including Multiple Powerdown Modes for Reduced Power Consumption - SHARP ASK IR - DMA Enable Logic - 480 Addresses, Up to 15 IRQ - Data Rate and Drive Control Registers Multi-Mode Parallel Port with ChiProtect , - 480 Address, Up to Eight IRQ and Four DMA - Standard Mode IBM PC/XT PC/AT , and Options PS/2 Compatible Bi-directional Parallel Port - Support FDD Interface on Parallel Port Pins - Enhanced Parallel Port (EPP) Compatible - EPP 1.7 and EPP 1.9 (IEEE 1284 Compliant) 2014 Microchip Technology Inc. DS00001872A-page 1SCH3112/SCH3114/SCH3116 - IEEE 1284 Compliant Enhanced Capabilities IDE Reset Output and 3 PCI Reset Buffers with Port (ECP) Software Control Capability (SCH3112 and SCH3114 Only) - ChiProtect Circuitry for Protection Power Button Control and AC Power Failure - 960 Address, Up to 15 IRQ and Four DMA Recovery (SCH3112 and SCH3114 Only) Options Temperature Range Available Hardware Monitor - Industrial (+85C to -40C) - Monitor Power supplies (+2.5V, +5V, +12V, Vccp (processor voltage), VCC, Vbat and Vtr. - Commercial (+70C to 0C) - Remote Thermal Diode Sensing for Two 128 Pin VTQFP RoHS Compliant Package External Temperature Measurements accu- o C rate to 1.5 - Internal Ambient Temperature Measurement - Limit Comparison of all Monitored Values - Programmable Automatic FAN control based on temperature - nHWM INT Pin for out-of-limit Temperature or Voltage Indication - Thermtrip signal for over temperature indica- tion 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: