PCA8574 - Remote 8-bit I/O expander

Product Overview

NXP

Part number	PCA8574
Manufacturer	NXP
File Size	416.27 KB
Description	Remote 8-bit I/O expander
Datasheet	PCA8574 Datasheet
Additional preview pages of the PCA8574 datasheet.

The PCA8574/74A provides general-purpose remote I/O expansion via the two-wire bidirectional I2C-bus (serial clock (SCL), serial data (SDA)).

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 sink capability for directly driving LEDs.
Total package sink capability of 200 mA.
Active LOW open-drain interrupt output.
Eight programmable slave addresses using three address pins.

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Published: Apr 24, 2015 |