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

nexperia

Description

PCA9539 Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers Rev.1 * 25 Ap.
The PCA9539 provides 16 bits of General Purpose Input/Output (GPIO) expansion with interrupt and reset for I²C-bus/SMBus applications.

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Datasheet Specifications

Part number: PCA9539
Manufacturer: nexperia ↗
File Size: 435.32 KB
Datasheet: PCA9539-nexperia.pdf
Description: Low-voltage 16-bit I2C and SMBus low-power I/O expander

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

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 interconnections to a minimum, for example, in ACPI power switches, sensors, push buttons, LEDs and fan control. The PCA9539 contains a set

PCA9539 Distributors

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