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PCA9574 low voltage GPIO

PCA9574 Description

PCA9574 8-bit I2C-bus and SMBus, level translating, low voltage GPIO with reset and interrupt Rev.6.0 * 31 May 2023 Product data sheet 1.
The PCA9574 is a CMOS device that provides 8 bits of General Purpose parallel Input/Output (GPIO) expansion in low voltage processor and handheld batt.

PCA9574 Features

* 400 kHz I2C-bus serial interface NXP Semiconductors PCA9574 8-bit I2C-bus and SMBus, level translating, low voltage GPIO with reset and interrupt
* Compliant with I2C-bus Standard-mode (100 kHz)
* Separate supply rails for core logic and I/O bank provides voltage level

PCA9574 Applications

* and was developed to enhance the NXP family of I2C-bus I/O expanders. The improvements include lower supply current, lower operating voltage of 1.1 V to 3.6 V, dual and separate supply rails to allow voltage level translation anywhere between 1.1 V and 3.6 V, 400 kHz clock frequency, and smaller pac

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low voltage GPIO NXP Semiconductors
NXP Semiconductors PCA9574-like datasheet