Datasheet

STLM75 Description
Doc ID 13296 Rev 12 9/40
1.3 Pin descriptions
See Figure 1 on page 7 and Table 1 on page 8 for a brief overview of the signals connected
to this device.
1.3.1 SDA (open drain)
This is the serial data input/output pin for the 2-wire serial communication port.
1.3.2 SCL
This is the serial clock input pin for the 2-wire serial communication port.
1.3.3 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 (T
OS
). It behaves as a thermostat, toggling to indicate whether
the measured temperature is above or below the threshold and hysteresis (T
HYS
).
1.3.4 GND
Ground; it is the reference for the power supply. It must be connected to system ground.
1.3.5 A2, A1, A0
A2, A1, and A0 are selectable address pins for the 3 LSBs of the I
2
C interface address.
They can be set to V
DD
or GND to provide 8 unique address selections.
1.3.6 V
DD
This is the supply voltage pin, and ranges from +2.7 V to +5.5 V.