w83l784r Winbond Electronics Corp America, w83l784r Datasheet - Page 18

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w83l784r

Manufacturer Part Number
w83l784r
Description
Winbond H/w Monitoring Ic
Manufacturer
Winbond Electronics Corp America
Datasheet

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Part Number
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Quantity
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Part Number:
W83L784R
Manufacturer:
WINBOND/华邦
Quantity:
20 000
6.3.3 Battery Fault Alarm
voltage and enable VBAT fault function. When VIN3(pin13) voltage exceeds high or low limit value,
pin BATFAULT# will be asserted.
6.4 Temperature Measurement Machine
The temperature data format is 8-bit two?-complement for internal sensor and 9-bit two -complement
for sensor CPUT1 and CPUT2. The 8-bit temperature data can be obtained by reading the CR[27h].
The 9-bit temperature data (CPUT1 and CPUT2) can be obtained by reading CR[00h] of its serial bus
address. The format of the temperature data is show in Table 1.
6.4.1 Monitor temperature from thermistor:
The W83L784R can connect three thermistors to measure three different envirment temperature. The
specification of thermistor should be considered to (1)
ohms at 25 C. In the Figure 10, the themistor is connected by a serial resistor with 10K Ohms, then
connect to VREF (pin 17).
Confidential, For Beta-site Only
W83L784R provides a good protection for DC battery. Set VIN3 to monitor DC battery
Temperature
+125
+0.5
-0.5
+25
-25
-55
+1
+0
-1
°
°
°
°
°
°
°
°
C
°
C
C
C
C
C
C
C
C
8-Bit Binary
0111,1101
0001,1001
0000,0001
0000,0000
1111,1111
1110,0111
1100,1001
8-Bit Digital Output
-
-
-17 -
8-Bit Hex
Table 1.
7Dh
FFh
E7h
C9h
19h
01h
00h
-
-
value is 3435K, (2) resistor value is 10K
0,1111,1010
0,0011,0010
0,0000,0010
0,0000,0001
0,0000,0000
1,1111,1111
1,1111,1110
1,1100,1110
1,1001,0010
9-Bit Binary
9-Bit Digital Output
Publication Release Date: Sep.
W83L784R
9-Bit Hex
Preliminary
1CEh
0FAh
1FFh
1FFh
032h
002h
001h
000h
192h
Revision 0.54
1999

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