NCA9555 GPIO expander evaluation board
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Key features and benefits
> Input voltage = 1.6 V to 5.5 V
> I²C to parallel port expansion
> Number of GPIOs = 2 ports with 8 bits
> Current drive capability = ± 25 mA
> I²C interface, Fast-Mode 400 kHz
> Open-drain active-low interrupt output
> Configurable slave address via 3 selection pins (2 pins for NCA9539)
> Low-active reset input (NCA9539)
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