SI7013 Datasheet, PDF (35/43 Pages) Silicon Laboratories – I2C HUMIDITY AND TWO-ZONE TEMPERATURE SENSOR

7. Pin Descriptions: Si7013 (Top View)
Si7013
SDA 1
AD0/VOUT 2
GNDD 3
GNDA 4
VSNS 5
10 SCL
9 ^VDDD
8 ^VDDA
7 VINN
6 VINP
Pin Name
SDA
Pin #
1
I²C data.
Pin Description
AD0/VOUT
2
Dual function pin.
This pin can be switched high or low and is generally used to drive an external
thermistor interface.
On powerup, this pin acts as a device address select pin. Tie high or low to set device
address LSB.
See Figure 5 and Figure 6.
GNDD
3
Digital ground. This pin is connected to ground on the circuit board.
GNDA
4
Analog ground. This pin is connected to ground on the circuit board.
VSNS
5
Voltage Sense Input. Tie to VDD.*
VINP
6
Analog to digital converter positive input.
VINN
7
Analog to digital converter negative input.
VDDA
8
Analog power. This pin is connected to power on the circuit board.
VDDD
SCL
9
Digital power. This pin is connected to power on the circuit board.
10
I²C clock
T_GND
Paddle This pad is connected to GND internally. This pad is the main thermal input to the on-
chip temperature sensor. The paddle should be soldered to a floating pad.
*Note: VSNS must be high at power up or device will be held in reset.
Rev. 0.95
35