PCA8574 Remote 8-bit I/O expander

NXP

Description

PCA8574; PCA8574A Remote 8-bit I/O expander for I2C-bus with interrupt Rev.3 * 3 June 2013 Product data sheet 1.General .
The PCA8574/74A provides general-purpose remote I/O expansion via the two-wire bidirectional I2C-bus (serial clock (SCL), serial data (SDA)).

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Datasheet Specifications

Part number: PCA8574
Manufacturer: NXP ↗
File Size: 416.27 KB
Datasheet: PCA8574-NXP.pdf
Description: Remote 8-bit I/O expander

Features

* I2C-bus to parallel port expander
* 400 kHz I2C-bus interface (Fast-mode I2C-bus)
* Operating supply voltage 2.3 V to 5.5 V with 5.5 V tolerant I/Os held to VDD with 100 A current source
* 8-bit remote I/O pins that default to inputs at power-up
* Latched outputs with 25 mA si

Applications

* and the latched output ports have 25 mA high current sink drive capability for directly driving LEDs. The PCA8574 and PCA8574A are identical, except for the different fixed portion of the slave address. The three hardware address pins allow eight of each device to be on the same I2C-bus, so there ca

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PCA8574 Remote 8-bit expander NXP

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