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AS621x

Application Information

Datasheet

• PUBLIC

DS000677

• v4-00 • 2022-May-17

36

│ 31

7

Application Information

Figure 34:

Application Example

In Figure 34 the connections of the AS621x temperature sensor to a microcontroller and the supply

voltage are shown.

The AS621x is connected to a microcontroller via an I²C bus (SDA and SCL only). Additionally the

Alert output can also be used for temperature monitoring (e.g. using the interrupt mode, refer to IM bit

settings), an example is given in Figure 34 where the Alert output is connected to microcontroller.

The I²C address of the AS621x can be selected by connecting the ADD0 and ADD1 to different pins

(see Figure 28). These pins must not be left unconnected.

Micro-

controller

(Bus Master)

VDD

10nF

VDD

Address Select 0

Slave

Pull-up resistors

RPU

SDA

VDD

ADD0

SCL

ADD1/

ALERT

VSS