TCAL6408DTUR Overview
A X2QFN-16 is enclosed in the package with the device.Chips conduct when the supplied voltage is 1.08 V to 3.6 V.Interface ICs series is the name of this product.25 mA is the maximum current the device can accept.
TCAL6408DTUR Features

TCAL6408DTUR Applications
There are a lot of Texas Instruments
TCAL6408DTUR I/O Expanders applications.

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
802.11x Receivers
IDEN

Package / Case	X2QFN-16
Mounting Style	SMD/SMT
Development Kit	IO-EXPANDER-EVM
Maximum Clock Frequency	1 MHz
Number of I/Os	8 I/O
Maximum Operating Temperature	+ 125 C
Supply Voltage - Max	3.6 V
Minimum Operating Temperature	- 40 C
Supply Voltage - Min	1.08 V
Interface Type	I2C, Serial
Type	SMBus I/O Expander
Subcategory	Interface ICs
Output Type	Open Drain, Push Pull
Operating Supply Voltage	1.08 V to 3.6 V
Operating Supply Current	- 20 mA
Output Current	25 mA
Product Type	I/O Expanders
ESD Protection	4 kV, 1 kV
Interrupt Output	With Interrupt
Product	I/O Expanders