PCF8574 - Remote 8-bit I/O expander

Product Overview

NXP

Part number	PCF8574
Manufacturer	NXP
File Size	367.27 KB
Description	Remote 8-bit I/O expander
Datasheet	PCF8574 Datasheet
Additional preview pages of the PCF8574 datasheet.

The PCF8574/74A 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.
100 kHz I2C-bus interface (Standard-mode I2C-bus).
Operating supply voltage 2.5 V to 6 V with non-overvoltage tolerant I/O held to VDD with 100 A current source.
8-bit remote I/O pins that default to inputs at power-up.
Latched outputs directly drive LEDs.
Total package sink capability of 80 mA.
Active LOW open-drain interrupt output.
Eight programmable slave addresses using three address pins.
Low standby current.

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Published: Mar 22, 2005 |