W83783S Datasheet, PDF (21/57 Pages) Winbond – MONITORING IC

+12V
R1
R2
PWM Clock Input
D
G
NMOS
S
PNP Transistor
+
C
-
FAN
Figure 14.
W83783S
Preliminary
6.5 Temperature Measurement Machine
The temperature data format is 8-bit two’s-complement for sensor 2 and 9-bit two -complement for
sensor 1. The 8-bit temperature data can be obtained by reading the CR[27h]. The 9-bit temperature
data can be obtained by reading the 8 MSBs from the Bank1 CR[50h] and the LSB from the Bank1
CR[51h] bit 7. The format of the temperature data is show in Table 1.
Temperature
+125øC
+25øC
+1øC
+0.5øC
+0øC
-0.5øC
-1øC
-25øC
-55øC
8-Bit Digital Output
8-Bit Binary
8-Bit Hex
0111,1101
7Dh
0001,1001
19h
0000,0001
01h
-
-
0000,0000
00h
-
-
1111,1111
FFh
1110,0111
E7h
1100,1001
C9h
Table 2.
9-Bit Digital Output
9-Bit Binary
9-Bit Hex
0,1111,1010
0FAh
0,0011,0010
032h
0,0000,0010
002h
0,0000,0001
001h
0,0000,0000
000h
1,1111,1111
1FFh
1,1111,1110
1FFh
1,1100,1110
1CEh
1,1001,0010
192h
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Publication Release Date: April 1999
Revision 0.55