PCA9554TS,112 Overview
As far as the I/Os are concerned, it is programmed with 8.Packaging includes the device and the 20-LSSOP (0.173, 4.40mm Width).As a matter of fact, it is available in the Tube case as well.Voting is done within 2.3V~5.5V hours after the order is placed.Surface Mount mounting is the type of mounting that is recommended for it.Devices work when their operating temperature falls within a certain range, called -40°C~85°C.For the performance of the output frequency, it works at 400kHz.With the help of this device, it is also possible to establish POR.
PCA9554TS,112 Features

PCA9554TS,112 Applications
There are a lot of Rochester Electronics, LLC
PCA9554TS,112 I/O Expanders applications.

IDEN, PHS, GSM Basestations
Repeaters, Radio Links, and Modems
Wireless Telemetry
JTRS
802.11x Receivers
IDEN
PHS
TD-SCDMA
CDMA2000
WCDMA

Mounting Type	Surface Mount
Package / Case	20-LSSOP (0.173, 4.40mm Width)
Supplier Device Package	20-SSOP
Operating Temperature	-40°C~85°C
Packaging	Tube
Feature	POR
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Voltage - Supply	2.3V~5.5V
Output Type	Push-Pull
Interface	I2C, SMBus
Number of I/O	8
Clock Frequency	400kHz
Interrupt Output	Yes
Current - Output Source/Sink	10mA 25mA
RoHS Status	ROHS3 Compliant