MCP9804 Microchip Technology, MCP9804 Datasheet - Page 33

• Manufacturer Part Number: MCP9804
• Description: Accuracy Digital Temperature Sensor
• Manufacturer: Microchip Technology

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 5-4
temperature sensor registers.
TABLE 5-4:
© 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)
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0°C
0°C
0°C
0°C
DS22203A-page 33