STDS75

Summary description

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1.3

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.

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 Over-Limit Signal/Interrupt Alert Output pin. It is open drain, so it needs a pull-up

resistor.

Note:

The open drain thermostat output that indicates if the temperature has exceeded user-

programmable limits (Over/Under Temperature indicator).

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

1.3.6

This is the supply voltage pin, and ranges from +2.7V to +5.5V.