ZHCSM91F May 2009 – January 2023 TCA6416A
PRODUCTION DATA
The RESET input can be asserted to initialize the system while keeping the VCCP at its operating level. A reset can be accomplished by holding the RESET pin low for a minimum of tW. The TCA6416A registers and I2C/SMBus state machine are changed to their default state once RESET is low (0). When RESET is high (1), the I/O levels at the P port can be changed externally or through the controller. This input requires a pull-up resistor to VCCI, if no active connection is used.