PCA9539 Datasheet - nexperia

PCA9539 Low-voltage 16-bit I2C and SMBus low-power I/O expander

The PCA9539 provides 16 bits of General Purpose Input/Output (GPIO) expansion with interrupt and reset for I²C-bus/SMBus applications. It is designed for a wide voltage range of 2.3 V to 5.5 V. Nexperia GPIO expanders provide an elegant solution when additional IOs are needed while keeping the inter.

PCA9539 Features

* 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)

* Schmitt-trigger action allows slow input transition and better switching noise immunity at the SCL and SDA

PCA9539 Datasheet (435.32 KB)