W83627UHG Nuvoton Technology Corporation of America, W83627UHG Datasheet - Page 24

• Manufacturer Part Number: W83627UHG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627UHG

• Applications: PC's, PDA's
• Interface: LPC
• Voltage - Supply: 3.3V, 5V
• Package / Case: 128-XFQFN
• Mounting Type: Surface Mount
• Pin Count: 128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Serial Port & Infrared Port Interface, continued
FAN_SET
SYMBOL
HEFRAS
DSRE#
DSRF#
RTSA#
RTSB#
RTSC#
RTSD#
RTSE#
MOA#
GP56
GP15
GP35
GP45
GP55
RTSF
DSA#
126
111
119
127
PIN
51
80
7
8
I/OD
I/OD
I/OD
I/OD
I/OD
OD
OD
IN
IN
O
O
I/O
IN t
IN
O
O
O
O
12
24
8
cd
8
8
8
cd
t
24
24
12t
12t
8
8
8
Data Set Ready. An active-low signal indicates the modem or
data set is ready to establish a communication link and transfer
data to the UART.
General-purpose I/O port 5 bit 6.
Data Set Ready. An active-low signal indicates the modem or
data set is ready to establish a communication link and transfer
data to the UART.
Motor A On. When set to 0, this pin enables disk drive 0. This is
an open drain output.
UART A Request To Send. An active-low signal informs the
modem or data set that the controller is ready to send data.
During power-on reset, this pin is pulled down internally and is
defined as HEFRAS, which provides the power-on value for
CR26 bit 6 (HEFRAS). The PCB layout should reserve space for
a 1-kΩ resistor to pull down this pin so as to ensure the selection
of I/O port’s configuration address to 2EH, and a 1-kΩ resistor is
recommended to pull it up if 4EH is selected as I/O port′s
configuration address.
UART B Request To Send. An active-low signal informs the
modem or data set that the controller is ready to send data.
General-purpose I/O port 1 bit 5.
UART C Request To Send. An active-low signal informs the
modem or data set that the controller is ready to send data.
General-purpose I/O port 3 bit 5.
UART D Request To Send. An active-low signal informs the
modem or data set that the controller is ready to send data.
Determines the initial FAN speed. Power-on configuration for 2
fan speeds, 50% or 100%. During power-on reset, this pin needs
a pulled-up or a pull-down resistor to decide whether the fan
speed is 50% or 100%.
General-purpose I/O port 4 bit 5.
UART E Request To Send. An active-low signal informs the
modem or data set that the controller is ready to send data.
General-purpose I/O port 5 bit 5.
UART F Request To Send. An active-low signal informs the
modem or data set that the controller is ready to send data.
Drive Select A. When set to 0, this pin enables disk drive A. This
is an open drain output.
-13-
DESCRIPTION
Publication Release Date: May 25, 2007
W83627UHG
Revision 1.0