MCP9804T-E/MS Microchip Technology, MCP9804T-E/MS Datasheet - Page 33

• 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

5.3
The MCP9804 has an internal Power-on Reset (POR)
circuit. If the power supply voltage V
the V
the power-on default settings.
Table 5-3
temperature sensor registers.
TABLE 5-3:
© 2009 Microchip Technology Inc.
Address (Hexadecimal)
POR
Summary of Power-on Default
shows the power-on default summary for the
threshold, the device resets the registers to
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
POWER-ON RESET DEFAULTS
Registers
Device ID/ Device Revision
Manufacturer ID
Register Name
Resolution
DD
CONFIG
T
T
T
LOWER
UPPER
glitches below
CRIT
T
A
Data (Hexadecimal)
Default Register
0x0000
0x0000
0x0000
0x0000
0x0000
0x0054
0x0200
0x03
Alert and critical output
Continuous conversion
Register Description
Critical limit unlocked
Alert limits unlocked
Power-up Default
Comparator mode
Active-Low output
Alert not asserted
Interrupt cleared
Output disabled
0°C Hysteresis
0x0054 (hex)
0x0200 (hex)
MCP9804
0x03 (hex)
0°C
0°C
0°C
0°C
DS22203B-page 33