TCA9554DWR Overview
It features 8 I/Os.16-SOIC (0.295, 7.50mm Width) comes in a package with the device.The case comes in the form of a Tape & Reel (TR).In this case, the vote is supplied within the range of 1.65V~5.5V.It is recommended that you mount it in a Surface Mount-position.As long as the operating temperature ranges -40°C~85°C, the device works.In terms of performance, its output frequency is 400kHz.I would say that it has 16 terminations as a whole.A voltage is provided at 1.8V by the device.To run 260, the peak reflow temperature is taken into account.There are a total of four 1 ports on the device.It is possible to search for parts related to the CA9554 family based on the part number.As a result of the use of this device, POR can also be founded.An IC chip has 8 bits in total.There are 16 pins on the device.
TCA9554DWR Features

TCA9554DWR Applications
There are a lot of Texas Instruments
TCA9554DWR I/O Expanders applications.

Multiprotocol RFID Readers: EPC-GEN2, ISD and IPX
IDEN, PHS, GSM Basestations
Repeaters, Radio Links, and Modems
Wireless Telemetry
JTRS
802.11x Receivers
IDEN
PHS
TD-SCDMA
CDMA2000

Lifecycle Status	ACTIVE (Last Updated: 3 days ago)
Factory Lead Time	6 Weeks
Mounting Type	Surface Mount
Package / Case	16-SOIC (0.295, 7.50mm Width)
Surface Mount	YES
Number of Pins	16
Operating Temperature	-40°C~85°C
Packaging	Tape & Reel (TR)
JESD-609 Code	e4
Feature	POR
Pbfree Code	yes
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	16
ECCN Code	EAR99
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Voltage - Supply	1.65V~5.5V
Terminal Position	DUAL
Terminal Form	GULL WING
Peak Reflow Temperature (Cel)	260
Supply Voltage	1.8V
Terminal Pitch	1.27mm
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Base Part Number	CA9554
Output Type	Push-Pull
Interface	I2C
Number of I/O	8
Number of Ports	1
Number of Bits	8
Clock Frequency	400kHz
Interrupt Output	Yes
Height	2.65mm
Length	10.3mm
Width	7.5mm
Thickness	2.35mm
RoHS Status	ROHS3 Compliant