MCP9804 Microchip Technology, MCP9804 Datasheet - Page 15

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

5.0
The MCP9804 temperature sensors consists of a
band-gap type temperature sensor, a Delta-Sigma
Analog-to-Digital
programmable registers and a 2-wire SMBus/I
protocol compatible serial interface.
block diagram of the register structure.
FIGURE 5-1:
© 2009 Microchip Technology Inc.
FUNCTIONAL DESCRIPTION
A0
Converter
Functional Block Diagram.
A1
Register
Pointer
(ΣΔ
A2
Figure 5-1
Device ID/Rev
Resolution
ADC),
Configuration
Temperature
Manufacturer ID
T
T
T
LOWER
CRIT
UPPER
Hysteresis
Shutdown
Critical Trip Lock
Alarm Win. Lock Bit
Clear Alert
Alert Status
Output Control
Critical Alert only
Alert Polarity
Alert
Alert
shows a
user-
Comp/Int
2
C
SMBus/Standard I
SDA
Interface
SCL
2
C
Temperature
Band-Gap
0.0625°C
ΣΔ
0.125°C
Sensor
0.25°C
0.5°C
ADC
V
DD
MCP9804
GND
www.DataSheet4U.com
DS22203A-page 15