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W83781D Datasheet(PDF) 17 Page - Winbond

Part # W83781D
Description  H/W MONITORING IC
Download  54 Pages
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Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond

W83781D Datasheet(HTML) 17 Page - Winbond

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W83781D/W83781G
Publication Release Date: April 14, 2005
- 13 -
Revision 2.0
FAN
Connector
FAN Out
+12V
GND
Pull-up resister
4.7K Ohms
+5V
+12V
Fan Input
Pin 18/19/20
W83781D
FAN
Connector
FAN Out
+12V
GND
Pull-up resister
4.7K Ohms
+12V
Fan Input
Pin 18/19/20
W83781D
14K~39K
10K
Fan with Tach Pull-Up to +12V, or Totem-Pole
Output and Register Attenuator
Fan with Tach Pull-Up to +5V
FAN
Connector
FAN Out
+12V
GND
Pull-up resister
> 1K
+12V
Fan Input
Pin 18/19/20
W83781D
FAN
Connector
FAN Out
+12V
GND
Pull-up resister < 1K
or totem-pole output
+12V
Fan Input
Pin 18/19/20
W83781D
> 1K
Fan with Tach Pull-Up to +12V, or Totem-Pole
Putput and Zener Clamp
Fan with Tach Pull-Up to +12V and Zener Clamp
3.9V Zener
3.9V Zener
7.4 Temperature Measurement Machine
The temperature data format is 8-bit two　-complement for sensor 1 and 9-bit two　-complement for
sensor 2/3. The table are expressed the temperature data as following.
8-Bit Digital Output
9-Bit Digital Output
Temperature
8-Bit Binary
8-Bit Hex
9-Bit Binary
9-Bit Hex
+125°C
0111,1101
7Dh
0,1111,1010
0FAh
+25°C
0001,1001
19h
0,0011,0010
032h
+1°C
0000,0001
01h
0,0000,0010
002h
+0.5°C
-
-
0,0000,0001
001h
+0°C
0000,0000
00h
0,0000,0000
000h
-0.5°C
-
-
1,1111,1111
1FFh
-1°C
1111,1111
FFh
1,1111,1110
1FFh
-25°C
1110,0111
E7h
1,1100,1110
1CEh
-55°C
1100,1001
C9h
1,1001,0010
192h


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