PCA9555A Low-voltage 16-bit I2C-bus I/O port

NXP

Description

PCA9555A Low-voltage 16-bit I2C-bus I/O port with interrupt and weak pull-up Rev.1.1 * 6 October 2015 Product data sheet 1.General descr.
The PCA9555A is a low-voltage 16-bit General Purpose Input/Output (GPIO) expander with interrupt and weak pull-up resistors for I2C-bus/SMBus applicat.

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Datasheet Specifications

Part number: PCA9555A
Manufacturer: NXP ↗
File Size: 2.40 MB
Datasheet: PCA9555A-NXP.pdf
Description: Low-voltage 16-bit I2C-bus I/O port

Features

* I2C-bus to parallel port expander
* Operating power supply voltage range of 1.65 V to 5.5 V
* Low standby current consumption:
* 1.5 A (typical at 5 V VDD)
* 1.0 A (typical at 3.3 V VDD)
* Schmitt-trigger action allows slow input transition and better switching noise immu

Applications

* NXP I/O expanders provide a simple solution when additional I/Os are needed while keeping interconnections to a minimum, for example, in ACPI power switches, sensors, push buttons, LEDs, fan control, etc. In addition to providing a flexible set of GPIOs, the wide VDD range of 1.65 V to 5.5 V allows

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PCA9555A Low-voltage 16-bit I2C-bus port NXP

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