W83637HF Winbond Electronics Corp America, W83637HF Datasheet - Page 35

• Manufacturer Part Number: W83637HF
• Description: Description = LPC I/o Plus H/w Monitor, Smart Fan Control, Smart Card (PC/SC) Reader, Memory Stick Reader I/F, Sd/mmc Card Reader I/f ;; Package = QFP 128
• Manufacturer: Winbond Electronics Corp America

Fan with Tach Pull-Up to +12V and Zener Clamp
2 (default)
Connector
Connector
Divisor
FAN
128
FAN
16
32
64
FAN Out
1
4
8
FAN Out
Fan with Tach Pull-Up to +5V
+12V
+12V
GND
+12V
GND
+12V
diode
diode
Nominal
PRM
8800
4400
2200
1100
550
275
137
3.9V Zener
68
Fan Input
Fan Input
+5V
Pull-up resister
Pull-up resister
4.7K Ohms
> 1K
Pin 111-112
Pin 111-112
W83637HF
W83637HF
Revolution
109.08 ms
218.16 ms
436.32 ms
872.64 ms
Time per
13.64 ms
27.27 ms
54.54 ms
6.82 ms
Figure 6.4
Table 2
- 30 -
Connector
Connector
Fan with Tach Pull-Up to +12V, or Totem-Pole
FAN
FAN
Counts
FAN Out
FAN Out
153
153
153
153
153
153
153
153
+12V
GND
+12V
GND
Fan with Tach Pull-Up to +12V, or Totem-Pole
+12V
+12V
Output and Zener Clamp
Publication Release Date: June 25, 2003
Output and Register Attenuator
diode
diode
70% RPM
6160
3080
1540
770
385
192
3.9V Zener
96
48
> 1K
Pull-up resister
4.7K Ohms
14K~39K
Pull-up resister < 1K
or totem-pole output
W83637HF
Fan Input
Fan Input
10K
Time for 70%
1246.72 ms
155.84 ms
311.68 ms
623.36 ms
19.48 ms
38.96 ms
77.92 ms
9.84 ms
Pin 111-112
Revision 1.3
Pin 111-112
W83637HF
W83637HF