PCA9574PW,112 Overview
8 I/Os are programmed into it.16-TSSOP (0.173, 4.40mm Width) packaging contains the device.Case Tape & Reel (TR) is available.Voting within 1.1V~3.6V is provided.Surface Mount is the recommended mounting type.If the operating temperature ranges from -40°C~85°C to Y, the device will work.Performance is achieved by its output frequency at 400kHz.This device can also be used to establish POR.
PCA9574PW,112 Features

PCA9574PW,112 Applications
There are a lot of Rochester Electronics, LLC
PCA9574PW,112 I/O Expanders applications.

Antialiasing/Reconstruction Filter
Single-Ended to Differential Conversion/Amplification
Low Voltage, Low Noise, Differential Signal Processing
Common Mode Voltage Translation
Portable Instrumentation
Multiprotocol RFID Readers: EPC-GEN2, ISD and IPX
IDEN, PHS, GSM Basestations
Repeaters, Radio Links, and Modems
Wireless Telemetry
JTRS

Mounting Type	Surface Mount
Package / Case	16-TSSOP (0.173, 4.40mm Width)
Supplier Device Package	16-TSSOP
Operating Temperature	-40°C~85°C
Packaging	Tape & Reel (TR)
Feature	POR
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Voltage - Supply	1.1V~3.6V
Output Type	Push-Pull
Interface	I2C, SMBus
Number of I/O	8
Clock Frequency	400kHz
Interrupt Output	Yes
Current - Output Source/Sink	1mA 3mA
RoHS Status	ROHS3 Compliant