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PCA8575 - Remote 16-bit I/O expander

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.

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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Datasheet preview – PCA8575

Datasheet Details

Part number PCA8575
Manufacturer NXP
File Size 181.46 KB
Description Remote 16-bit I/O expander
Datasheet download datasheet PCA8575 Datasheet
Additional preview pages of the PCA8575 datasheet.

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Full PDF Text Transcription

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PCA8575 Remote 16-bit I/O expander for I2C-bus with interrupt Rev. 02 — 21 March 2007 Product data sheet 1. 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. The PCA8575 also possesses an interrupt line (INT) which can be connected to the interrupt logic of the microcontroller.
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