PCF8574A - Remote 8-bit I/O expander

This page provides the datasheet information for the PCF8574A, a member of the PCF8574 Remote 8-bit I/O expander family.

Product Overview

NXP

Part number	PCF8574A
Manufacturer	NXP
File Size	367.27 KB
Description	Remote 8-bit I/O expander
Datasheet	PCF8574A Datasheet
Additional preview pages of the PCF8574A 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.

PCF8574A - Remote 8-Bit I/O Expander (Texas Instruments)
PCF8574 - Remote 8-Bit I/O Expander (Texas Instruments)
PCF8574N - Remote 8-Bit I/O Expander (Texas Instruments)
PCF8570C - 128 x 8 Bit / 256 x 8 Bit Static Ram (Philips)
PCF8571 - 128 x 8 Bit / 256 x 8 Bit Static Ram (Philips)
PCF8575 - Remote16-BIT I2C AND SMBus I/O Expander (Texas Instruments)
PCF8575C - Remote 16-Bit I2C AND SMBus Low-Power I/O Expander (Texas Instruments)
PCF8576D - Universal LCD driver (NXP Semiconductors)
PCF8577 - LCD direct/duplex driver (Philips)
PCF8577A - LCD direct/duplex driver (Philips)

Other Datasheets by NXP

Published: Jan 30, 2016 |