w83l786nr Winbond Electronics Corp America, w83l786nr Datasheet - Page 14

• Manufacturer Part Number: w83l786nr
• Description: W83l786nr W83l786ng Winbond H/w Monitoring Ic
• Manufacturer: Winbond Electronics Corp America

(b) Serial bus read from a register
7.4
The maximum input voltage of the analog pin is 2.048V because the 8-bit ADC has the 8mV LSB.
Actually, the application of the voltage monitoring would most often be connected to power suppliers.
The input voltage lower than 2.048V could directly connect to the analog inputs. The inputs voltage
higher than 2.048V should be reduced by external resistors so as to meet the input range. This is
shown in Figure 3.
SCL
SDA
Analog Inputs
Repeat
start
by
Master
**The connections of D+
Start By
Master
is same as VTIN1
0
0
Typical Therm ister
Connection
0
0
1
Serial Bus Address Byte
1
Figure 2. Serial Bus Read from Internal Address Register
0
Serial Bus Address Byte
Positive Inputs
Frame 3
0
1
Frame 1
1
1
1
0
0
1
10K, 25 C
+2.5V
R THM
1
R/W
7
0
10K, 1%
Figure 3
792D
Ack
7
R/W
0
by
8
- 9 -
792D
100K, 1%
Ack
by
8
0
D7
R1
VTIN1
W83L786NR/ W83L786NG
0
D7
D6
Data Byte
VCORE(M ax2.048V)
VRAM (M ax2.048V)
Frame 4
D6
D5
VREF
Internal Index Register Byte
Publication Release Date: March 31, 2006
R2
100K, 1%
D5
D4
Frame 2
D4
D3
Pin 13
Pin 14
Pin 15
Pin 10
D3
D2
D2
D1
D1
7
D0
8mV LSB
8-bit ADC
with
7
D0
Master
8
Nak
by
792D
8
Ack
Stop by
Master
by
Revision 0.9