FDC37C666GT – TBC

The FDC37C666GT is a multi-function Super I/O controller, manufactured by SMSC (Standard Microsystems Corporation). This specific iteration, designated “Non Rohs,” indicates that it does not comply with the Restriction of Hazardous Substances Directive, suggesting a manufacturing date prior to full RoHS implementation. The marking “2005/18” denotes a date code, likely indicating the 18th week of 2005 as the fabrication date. Functionality typically includes floppy disk controller, serial ports (UARTs), parallel port, and keyboard/mouse controller interfaces. The “66/tray” likely refers to the packaging configuration, indicating that the devices are shipped in trays with 66 units per tray. Further specifications, such as operating voltage, temperature range, and specific UART capabilities, would require accessing the original SMSC datasheet for this part number.