W83782G Nuvoton Technology Corporation of America, W83782G Datasheet - Page 12

• Manufacturer Part Number: W83782G
• Description: IC MONITOR H/W 48-LQFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83782G

• Output Type: I²C™, ISA
• Function: Hardware Monitor
• Topology: ADC, Fan Speed Counter, Register Bank
• Sensor Type: External
• Sensing Temperature: External Sensor
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Temperature Sensor Function: Temp Sensor
• Operating Temperature (min): -40C
• Operating Temperature (max): 120C
• Operating Supply Voltage (typ): 5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6.2.4 The serial bus timing of the temperature 2 and 3 is shown as follow:
(a) Typical 2-byte read from preset pointer location (Temp, T
(b) Typical pointer set followed by immediate read for 2-byte register (Temp, T
(c) Serial bus read from a register with the internal address register prefer to desired location
SCL
SDA
SCL
SDA
SCL
SDA
Start By
Start By
Master
Master
SCL
SDA
Figure 6. Typical Pointer Set Followed by Immediate Read for 2-Byte Register
Start By
Master
0
0
0
1
Start By
Master
1
0
1
0
0
Figure 5. Typical 2-Byte Read From Preset Pointer Location
0
Serial Bus Address Byte
Serial Bus Address Byte
0
0
0
1
Serial Bus Address Byte
Frame 3
Figure 4. Serial Bus Write to Internal Address Register Only
Serial Bus Address Byte
1
0
1
Frame 1
0
Frame 1
1
1
A2
Frame 1
1
0
A2
A1
1
1
A1
A0
0
R/W
R/W
7
7
0
A0
1
R/W
Ack
782D
by
8
782D
7
8
Ack
by
R/W
7
0
Ack
782D
by
D7
D7
0
8
0
- 9 -
Ack
781D
by
8
...
...
...
...
0
0
MSB Data Byte
D7
0
MSB Data Byte
Frame 4
0
Frame 2
D6
D1
D1
Internal Index Register Byte
0
D5
Pointer Byte
7
D0
7
D0
Frame 2
OS
Publication Release Date: April 14, 2005
0
Frame 2
, T
W83782D/W83782G
Master
Ack
Master
by
D4
8
Ack
8
by
HYST
4
0
D3
0
D7
0
D7
)
0
D2
...
...
...
...
D1
LSB Data Byte
LSB Data Byte
D1
Frame 5
D0
Frame 3
D1
D1
7
D0
OS
Ack
782D
by
, T
Master
7
D0
7
D0
Ack
8
by
HYST
No Ack
Master
Master
by
Revision 2.0
Ack
Stop by
Master
by
)
Stop by
Master
Stop by
Master