SCPS124H September 2006 – March 2021 PCA9534
PRODUCTION DATA
When power (from 0 V) is applied to VCC, an internal power-on reset holds the PCA9534 in a reset condition until VCC has reached VPOR. At that point, the reset condition is released and the PCA9534 registers and I2C/SMBus state machine initialize to their default states. After that, VCC must be lowered to below 0.2 V and then back up to the operating voltage for a power-reset cycle.