STCN75 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'STCN75' PDF : 36 Pages View PDF
Description
Figure 2. Connections
SDA(1) 1
SCL 2
OS/INT(1) 3
GND 4
1. SDA and OS/INT are open drain.
Figure 3. Functional block diagram
8 VDD
7 A0
6 A1
5 A2
STCN75
AI11841
VDD
Temperature
Sensor and
Analog-to-Digital
Converter (ADC)
S-D
Configuration Register
Temperature Register
THYS Set Point Register
TOS Set Point Register
Pointer Register
Control and Logic
Comparator
A0
A1
2-wire I2C Interface
A2
GND
OS/INT
SDA
SCL
AI11833a
1.3
1.3.1
1.3.2
1.3.3
Pin descriptions
See Figure 1 on page 7 and Table 1 on page 7 for a brief overview of the signals
connected to this device.
SDA (open drain)
This is the serial data input/output pin for the 2-wire serial communication port.
SCL
This is the serial clock input pin for the 2-wire serial communication port.
OS/INT (open drain)
This is the overlimit signal/interrupt alert output pin. It is open drain, so it needs a pull-up
resistor. In Interrupt mode, it outputs a pulse whenever the measured temperature exceeds
the programmed threshold (TOS). It behaves as a thermostat, toggling to indicate whether
the measured temperature is above or below the threshold and hysteresis (THYS).
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Doc ID 13307 Rev 9
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