FDC37C67x

5 Volt Operation 

PC98/99 and ACPI 1.0 Compliant 

ISA Plug-and-Play Compatible Register Set 

Intelligent Auto Power Management - Shadowed Write-Only Registers for  ACPI Compliance

System Management Interrupt, Watchdog Timer 

2.88MB Super I/O Floppy Disk Controller - Licensed CMOS 765B Floppy Disk Controller - Software and Register Compatible with SMSC's Proprietary 82077AA Compatible Core - Supports Two Floppy Drives Directly - Configurable Open Drain/Push-Pull  Output Drivers - Supports Vertical Recording Format - 16-Byte Data FIFO - 100% IBM(R) Compatibility - Detects All Overrun and Underrun Conditions - Sophisticated Power Control Circuitry (PCC) Including Multiple Powerdown Modes for Reduced Power Consumption - DMA Enable Logic - Data Rate and Drive Control Registers - 480 Address, Up to Eight IRQ and Three DMA Options

Floppy Disk Available on Parallel Port Pins  Enhanced Digital Data Separator - 2 Mbps, 1 Mbps, 500 Kbps, 300
Kbps, 250 Kbps Data Rates - Programmable Precompensation Modes

Keyboard Controller - 8042 Software Compatible - 8 Bit Microcomputer - 2k Bytes of Program ROM - 256 Bytes of Data RAM - Four Open Drain Outputs Dedicated  for Keyboard/Mouse Interface - Asynchronous Access to Two Data  Registers and One Status Register - Supports Interrupt and Polling Access - 8-Bit Counter Timer - Port 92 Support - 8042 P12 and P16 Outputs

Serial Ports - Two Full Function Serial Ports - High Speed NS16C550A Compatible  UARTs with Send/Receive 16-Byte FIFOs - Supports 230k and 460k Baud Programmable Baud Rate Generator Modem Control Circuitry - 480 Address and Eight IRQ Options

Infrared Port - Multiprotocol Infrared Interface - 128-Byte Data FIFO - IrDA 1.1 Compliant - TEMIC/HP Module Support - Consumer IR - SHARP ASK IR - 480 Address, Up to Eight IRQ and Three DMA Options

Operating Temperature Range..........................................................................................0 to +70
Storage Temperature Range.........................................................................................-55  to +150
Lead Temperature Range (soldering, 10 seconds)......................................................................+325
Positive Voltage on any pin, with respect to Ground................................................................V_cc+0.3V
Negative Voltage on any pin, with respect to Ground....................................................................-0.3V
Maximum V_cc.....................................................................................................................................+7V

The FDC37C67x with Consumer IR and IrDA v1.1 support incorporates a keyboard interface, SMSC's true CMOS 765B floppy disk controller, advanced digital data separator, two 16C550
compatible UARTs, one Multi-Mode parallel port which includes ChiProtect circuitry plus EPP and ECP, on-chip 24 mA AT bus drivers, two floppy direct drive support, Intelligent power
management and SMI support. The true CMOS 765B core provides 100% compatibility with IBM PC/XT and PC/AT architectures in addition to providing data overflow and underflow
protection.  The SMSC advanced digital data separator incorporates SMSC's patented data separator technology, allowing for ease of testing and use.  Both on-chip UARTs are
compatible with the NS16C550.  The parallel port is compatible with IBM PC/AT architecture, as well as IEEE 1284 EPP and ECP.  The FDC37C67x incorporates sophisticated power control circuitry (PCC).  The PCC supports multiple low power down modes.

The FDC37C67x supports the ISA Plug-and-Play Standard (Version 1.0a) and provides the recommended functionality to support Windows '95.  The I/O Address, DMA Channel and Hardware IRQ of each logical device in the FDC37C67x may be reprogrammed through the internal configuration registers.  There are 480 I/O address location options, 8 parallel IRQs, an
optional Serialized IRQ interface, and three DMA channels.

The FDC37C67x does not require any external filter components and is therefore easy to use and offers lower system costs and reduced board area.  The FDC37C67x is software and
register compatible with SMSC's proprietary 82077AA core.