NCA9555B - 16-bit I2C-bus I/O port
NCA9555B 16-bit I2C-bus I/O port with interrupt Datasheet (EN) 1.1 Product Overview The NCA9555B is a 24-pin device that provides 16 bits of General Purpose parallel Input/Output (GPIO) expansion for the two-line bidirectional I2C bus applications.
The device can operate with a power supply voltage (VDD) range from 1.65 V to 5.5 V.
It provides a simple solution when additional I/Os are needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.
The NCA9555B consists of two 8-bit Con
NCA9555B Features
* I2C to Parallel Port Expander
* Operating power supply voltage range of 1.65 V to 5.5 V
* Low standby current
* Open-drain active-low interrupt output
* 5.5 V tolerant, 16 I/O ports which default to input mode
* Compatible with most microcontrollers
* Up to 400 kHz cloc
