FDC37N972

The FDC37N972 is a 208-pin 3.3V ISA Hos ACPI 1.0 and PC98 (/PC99)-compliant Ultra I/O Controller with Fast Infrared for mobile applications.
 
The FDC37N972 incorporates a high performance 8051-based keyboard controller; a 512k byte Flash ROM interface; four PS/2 ports a real-time clock; SMSC's true CMOS 765B floppy disk controller with advanced digital data separator and 16-byte data FIFO; an NS16C550A-compatible UART, SMSC's advanced Infrared Communications Controlle (IrCC 2.0) with a UART and a Synchronous Communications Engine to provide IrDA v1.1 (Fast IR capabilities; one Multi-Mode paralle port with ChiProtect circuitry plus EPP and ECP support; two 8584-style Access Bus controllers a Serial IRQ peripheral agent interface; an ACP Embedded Controller Interface; Genera Purpose I/O pins; two independently programmable pulse width modulators; two floppy direct drive support; and maskable hardware wake-up events.
 
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.