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PCA8575 - Remote 16-bit I/O expander

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General Description

The PCA8575 provides general purpose remote I/O expansion for most microcontroller families via the two-line bidirectional I2C-bus (serial clock (SCL), serial data (SDA)).

The device consists of a 16-bit quasi-bidirectional port and an I2C-bus interface.

The PCA8575 has a low current consumption and includes latched outputs with high current drive capability for directly driving LEDs.

Overview

PCA8575 Remote 16-bit I/O expander for I2C-bus with interrupt Rev.

02 — 21 March 2007 Product data sheet 1.

Key Features

  • I 400 kHz I2C-bus interface I 2.3 V to 5.5 V operation with 5.5 V tolerant I/Os I 16-bit remote I/O pins that default to inputs at power-up I Latched outputs with 25 mA sink capability for directly driving LEDs I Total package sink capability of 400 mA I Active LOW open-drain interrupt output I 8 programmable slave addresses using 3 address pins I Readable device ID (manufacturer, device type, and revision) I Low standby current (10 µA max. ) I.
  • 40 °C to +85 °C operation I ESD protection.

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