Pin Specifications

Pin Configuration WLP
PIN NAME FUNCTION
Pin Description
1 DQ Data In/Out
2 VDD External Parasite Power Capacitor and VDD Input. Connect a 3.3nF capacitor between this pin and GND for parasite power operation. Connect power supply voltage to this pin when powering from an external VDD source.
3 GND Ground
5 ADD1 Address Selection Input. Connect to GND or VDD (DQ in parasite mode) to select the location address.
4 ADD0 Address Selection Input. Connect a resistor to GND to select the location address.
6 ALARM Alarm output. Open-drain. Note that the ALARM output generates alarm signals only in external power mode.