PCA9555A Datasheet





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

PCA9555A   PCA9555A  

Datasheet: PCA9555A datasheet

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Description: PCA9555A Low-voltage 16-bit I2C-bus I/O port with interrupt and weak pull-up Rev. 1.1 — 6 October 2015 Product da ta sheet 1. General description The PC A9555A is a low-voltage 16-bit General Purpose Input/Output (GPIO) expander wi th interrupt and weak pull-up resistors for I2C-bus/SMBus applications. NXP I/ O expanders provide a simple solution w hen additional I/Os are needed while ke eping interconnections to a minimum, fo r example, in ACPI power switches, sens ors, push buttons, LEDs, fan control, e tc. In addition to providing a flexible set of GPIOs, the wide VDD range of 1. 65 V to 5.5 V allows the PCA9555A to in terface with next-generation microproce ssors and microcontrollers where suppl


Manufacture Part Number Description

NXP

PCA9555A

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




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