W83627G-AW Nuvoton Technology Corporation of America, W83627G-AW Datasheet - Page 18

• Manufacturer Part Number: W83627G-AW
• Description: IC LPC SUPER I/O 128-PQFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627G-AW

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

6.2
FANPWM3
DRVDEN0
DRVDEN1
TRACK0#
SYMBOL
INDEX#
FANIN3
IRQIN1
STEP#
MOA#
MOB#
GP27
DSB#
DSA#
SMI#
DIR#
WD#
WE#
WP#
FDC Interface
PIN
10
11
13
14
1
2
3
4
5
6
7
8
9
I/OD12t
I/O
OD12
OD12
OD
OD
OD
OD
OD
OD
OD
OD
OD
OD
IN
IN
IN
INt
I/O
csu
csu
csu
24ts
24
24
24
24
24
24
24
24
24
24
Drive Density Select bit 0.
Drive Density Select bit 1.（Default）
System Management Interrupt
Interrupt channel input.
General purpose I/O port 2 bit 7.
This Schmitt-triggered input from the disk drive is active low
when the head is positioned over the beginning of a track
marked by an index hole. This input pin is pulled up internally
by a 500 ohm resistor. The resistor can be disabled by bit 7 of
LD0-CRF0（FIPURDWN）.
Motor A On. When set to 0, this pin enables disk drive 0.
Drive Select B. When set to 0, this pin enables disk drive B.
0V to +5V amplitude fan tachometer input
Drive Select A. When set to 0, this pin enables disk drive A.
Motor B On. When set to 0, this pin enables disk drive 1.
Fan speed control. Use the Pulse Width Modulation（PWM）
technical knowledge to control the Fan's RPM.
Direction of the head step motor. An open drain output.
Logic 1 = outward motion
Logic 0 = inward motion
Step output pulses. This active low open drain output produces
a pulse to move the head to another track.
Write data. This logic low open drain writes pre-compensation
serial data to the selected FDD. An open drain output.
Write enable. An open drain output.
Track 0. This Schmitt-triggered input from the disk drive is ac-
tive low when the head is positioned over the outermost track.
This input pin is pulled up internally by a 1 K ohm resistor.The
resistor can be disabled by bit 7 of L0-CRF0（FIPURDWN）.
Write protected. This active low Schmitt input from the disk
drive indicates that the diskette is write-protected. This input pin
is pulled up internally by a 1 K ohm resistor. The resistor can
be disabled by bit 7 of L0-CRF0 （FIPURDWN）.
- 14 -
FUNCTION
W83627HF/ F/ HG/ G