MCP9804T-E/MC Microchip Technology, MCP9804T-E/MC Datasheet - Page 27

• Manufacturer Part Number: MCP9804T-E/MC
• Description: IC TEMP SENSOR I2C 2.7V 8DFN
• Manufacturer: Microchip Technology

Specifications of MCP9804T-E/MC

• Package / Case: 8-DFN
• 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
• 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, Lead free / RoHS Compliant
• Other names: MCP9804T-E/MCTR

5.1.4
This register is used to identify the manufacturer of the
device in order to perform manufacturer specific
operation. The Manufacturer ID for the MCP9804 is
0x0054 (hexadecimal).
REGISTER 5-5:
FIGURE 5-7:
© 2009 Microchip Technology Inc.
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15-0
SDA
SCL
R-0
R-0
SDA
SCL
MANUFACTURER ID REGISTER
S
Device Manufacturer Identification Bits
1
0
S
2
0
1
0
R-0
R-1
Address Byte
MANUFACTURER ID REGISTER (READ-ONLY) → ADDRESS
Timing Diagram for Reading the Manufacturer ID Register (See Section 4.0).
1
3
2
0
Address Byte
4
1
1
3
5
A
2
4
1
W = Writable bit
‘1’ = Bit is set
A
6
1
5
A
2
R-0
R-0
7
A
0
A
6
1
MCP9804
W
8
7
A
0
MCP9804
A
C
K
R
8
1
0
A
C
K
2
0
Manuf. ID Pointer
1
0
R-0
R-1
Manufacturer ID
Manufacturer ID
3
0
2
0
4
0
3
0
MSB Data
5
0
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
4
0
6
1
5
0
R-0
R-0
7
1
0
6
MCP9804
8
0
7
0
A
C
K
8
0
Master
A
C
K
R-0
R-1
1
0
Note:
2
1
3
0
LSB Data
4
1
x = Bit is unknown
It is not necessary to
select
pointer if it was set from
the previous read/write.
5
0
MCP9804
R-0
R-0
‘0000 0110’b
6
1
7
0
DS22203B-page 27
the
8
0
Master
N
A
K
register
P
R-0
R-0
bit 8
bit 0