NCT6627UD Nuvoton Technology Corporation of America, NCT6627UD Datasheet - Page 10

• Manufacturer Part Number: NCT6627UD
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of NCT6627UD

• Lead Free Status / Rohs Status: Supplier Unconfirmed

W83627UHG/NCT6627UD
1. GENERAL DESCRIPTION
The W83627UHG is a member of Nuvoton’s Super I/O product line. This family features the LPC (Low Pin Count)
interface. This interface is more economical than its ISA counterpart because it has approximately forty pins fewer,
yet still provides as great performance. In addition, the improvement allows even more efficient operation of
software, BIOS and device drivers.
In addition to providing an LPC interface for I/O, the W83627UHG monitors several critical parameters in PC
hardware, including power supply voltages, fan speeds, and temperatures. In terms of temperature monitoring,
the W83627UHG adopts the Current Mode (dual current source) approach. The W83627UHG also supports the
TM
TM
Smart Fan control system, including “S
F
I and S
F
III, which makes the system more stable
MART
AN
MART
AN
and user-friendly.
The W83627UHG supports four – 360K, 720K, 1.2M, 1.44M, or 2.88M – disk drives and data transfer rates of 250
Kb/s, 300 Kb/s, 500 Kb/s, 1 Mb/s, and 2 Mb/s. The disk drive adapter supports the functions of floppy disk drive
controller (compatible with the industry standard 82077/ 765), data separator, write pre-compensation circuit,
decode logic, data rate selection, clock generator, drive interface control logic, and interrupt and DMA logic. Such
a wide range of functions integrated into one W83627UHG greatly reduces the number of required components to
interface with floppy disk drives.
The W83627UHG provides six high-speed serial communication ports (UARTs), one of which provides IR
functions IrDA 1.0 (SIR for 1.152K bps). Each UART includes a 16-byte send/receive FIFO, a programmable
baud rate generator, complete modem-control capability, and a processor interrupt system. All of the UARTs
support legacy speeds up to 115.2K bps as well as higher baud rates of 230K, 460K, or 921K bps to support
higher speed modems.
The W83627UHG supports the PC-compatible printer port (SPP), the bi-directional printer port (BPP), the
enhanced parallel port (EPP) and the extended capabilities port (ECP).
The W83627UHG provides flexible I/O control functions through a set of 45 general purpose I/O (GPIO) ports.
These GPIO ports may serve as simple I/O ports or may be individually configured to provide alternative functions.
®
The W83627UHG supports the SST (Simple Serial Transport) interface and Intel
PECI (Platform Environment
Control Interface).
The W83627UHG fully complies with the Microsoft© PC98 and PC99 Hardware Design Guide and meets the
requirements of ACPI.
Publication Release Date: October 26, 2010
-1-
Revision 1.7