Recommended operating conditions

The operating conditions are the physical parameters that the chip can operate within.

Table 1. Recommended operating conditions
Symbol	Parameter	Min.	Nom.	Max.	Units
VDD	Supply voltage, independent of DCDC enable	1.7	3.0	3.6	V
t_{R_VDD}	Supply rise time (0 V to 1.7 V)			60	ms
TA	Operating temperature	-40	25	85	°C

Important: The on-chip power-on reset circuitry may not function properly for rise times longer than the specified maximum.

WLCSP light sensitivity

WLCSP package variants are sensitive to visible and near infrared light, which means that a final product design must shield the chip properly.

For the WLCSP package variant, the marking side is covered with a light absorbing film, while the side edges of the chip and the ball side must be protected by coating or other means.