MCP9804T-E/MS Microchip Technology, MCP9804T-E/MS Datasheet - Page 23

• Manufacturer Part Number: MCP9804T-E/MS
• Description: High-Accuracy, 12-bit Thermal Sensor With Serial Interface 8 MSOP 3x3mm T/R
• Manufacturer: Microchip Technology

Specifications of MCP9804T-E/MS

• Function: Temp Monitoring System (Sensor)
• Topology: ADC (Sigma Delta), Register Bank
• Sensor Type: Internal
• Sensing Temperature: -40°C ~ 125°C
• Output Type: I²C™/SMBus™
• Output Alarm: No
• Output Fan: No
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Temperature Threshold: + 150 C
• Full Temp Accuracy: +/- 0.25 %
• Digital Output - Bus Interface: 2-Wire, I2C
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Supply Current: 200 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 5-4:
© 2009 Microchip Technology Inc.
SDA
SCL
• Writing 90°C to the T
• Reading from the T
SDA
SCL
SDA
SCL
S
1
0
S
S
2
0
1
0
Timing Diagram for Writing and Reading from the T
Address Byte
1
0
3
1
2
0
Address Byte
2
0
4
1
UPPER
3
1
UPPER
Address Byte
3
1
5
A
2
4
1
4
1
A
6
1
A
5
2
Register <0000 0101 1010 0000>b.
Register.
A
5
2
A
0
7
6
A
1
MCP9804
W
6
A
1
0
8
1
A
7
0
MCP9804
A
7
0
2
0
A
C
K
8
R
MCP9804
W
8
1
3
0
0
MSB Data
A
C
K
A
C
K
4
0
2
0
T
1
0
UPPER
1
0
0
3
5
0
2
0
2
0
1
6
4
0
T
3
0
MSB Data
Pointer
UPPER
3
0
7
5
0
0
4
0
MCP9804
4
0
8
1
6
0
0
5
Pointer
5
0
A
C
K
7
1
6
1
MCP9804
6
0
1
1
8
0
7
0
7
1
A
C
K
2
0
8
1
Master
MCP9804
0
8
3
1
A
C
K
LSB Data
UPPER
A
C
K
4
0
1
1
Note:
5
0
2
0
6
0
Register (See Section 4.0).
3
1
LSB Data
7
0
4
0
MCP9804
It is not necessary to
select
pointer if it was set from
the previous read/write.
MCP9804
8
0
5
0
A
C
K
6
0
P
DS22203B-page 23
7
0
the
8
0
Master
N
A
K
register
P