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NCA9555

nexperia
Part Number NCA9555
Manufacturer nexperia
Description Low-voltage 16-bit I2C and SMBus I/O expander
Published Sep 5, 2023
Detailed Description NCA9555 Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output and configuration registers Rev. 3 — 24 A...
Datasheet PDF File NCA9555 PDF File

NCA9555
NCA9555

Overview
NCA9555 Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output and configuration registers Rev.
3 — 24 April 2023 Product data sheet 1.
General description The NCA9555 provides 16 bits of General Purpose Input/Output (GPIO) expansion for I²C-bus/SMBus applications.
It is designed for a wide voltage range of 1.
65 V to 5.
5 V with interrupt and default pull-up resistors on GPIOs.
Nexperia GPIO expanders provide an elegant solution when additional IOs are needed while keeping the interconnections to a minimum, for example, in ACPI power switches, sensors, push buttons, LEDs and fan control.
The NCA9555 contains a set of 8 bit input, output, configuration and polarity inversion ...


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