PCA9574BS datasheet(2/32 Pages) NXP

Part #	PCA9574BS

Description	8-bit I2C-bus and SMBus, level translating, low voltage GPIO with reset and interrupt

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Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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PCA9574_2

Product data sheet

Rev. 02 — 27 July 2009

2 of 32

NXP Semiconductors

PCA9574

8-bit I2C-bus and SMBus, level translating, low voltage GPIO

The PCA9574 is available in TSSOP16, HVQFN16 and HXQFN16U packages and is

speciﬁed over the

−40 °C to +85 °C industrial temperature range.

2.

Features

I 400 kHz I2C-bus serial interface

I Compliant with I2C-bus Standard-mode (100 kHz)

I Separate supply rails for core logic and I/O bank provides voltage level shifting

I 1.1 V to 3.6 V operation with level shifting feature

I Very low standby current: < 1 µA

I 8 conﬁgurable I/O pins that default to inputs at power-up

I Outputs:

N Totem pole: 1 mA source and 3 mA sink

N Independently programmable 100 kΩ pull-up or pull-down for each I/O pin

N Open-drain active LOW interrupt (INT) output pin allows monitoring of logic level

change of pins programmed as inputs

I Inputs:

N Programmable bus hold provides valid logic level when inputs are not actively

driven

N Programmable Interrupt Mask Control for input pins that do not require an interrupt

when their states change or to prevent spurious interrupts default to mask at

power-up

N Polarity inversion register allows inversion of the polarity of the I/O pins when read

I Active LOW reset (RESET) input pin resets device to power-up default state

I GPIO All Call address allows programming of more than one device at the same time

with the same parameters

I 2 programmable slave addresses using 1 address pin

I −40 °C to +85 °C operation

I ESD protection exceeds 7000 V HBM per JESD22-A114, 500 V MM per

JESD22-A115, and 1000 V CDM per JESD22-C101

I Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA

I Packages offered: TSSOP16, HVQFN16 and HXQFN16U

3.

Applications

I Cell phones

I Media players

I Multi voltage environments

I Battery operated mobile gadgets

I Motherboards

I Servers

I RAID systems

I Industrial control

I Medical equipment

I PLCs

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