PCA9555 Low-voltage 16-bit I2C-bus I/O port
• I²C-bus to parallel port expander
• Operating power supply voltage range of 2.3 V to 5.5 V
• Ultra low standby current consumption:
• 1 µA (maximum)
It is designed for a wide voltage range of 2.3 V to 5.5 V with interrupt and default pull-up resistors on GPIOs. Nexper.
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