TCA6408A-Q1 Datasheet, PDF (2/40 Pages) Texas Instruments – Low-Voltage 8-Bit I2C and SMBus I/O Expander With Interrupt Output

TCA6408A-Q1
SCPS234 – SEPTEMBER 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ..................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics........................................... 5
6.6 I²C Interface Timing Requirements........................... 6
6.7 Reset Timing Requirements ..................................... 7
6.8 Switching Characteristics .......................................... 7
6.9 Typical Characteristics .............................................. 8
7 Parameter Measurement Information ................ 11
8 Detailed Description ............................................ 15
8.1 Overview ................................................................. 15
8.2 Functional Block Diagrams ..................................... 16
8.3 Feature Description................................................. 18
8.4 Device Functional Modes........................................ 19
8.5 Programming .......................................................... 19
8.6 Register Map........................................................... 23
9 Application and Implementation ........................ 25
9.1 Application Information............................................ 25
9.2 Typical Application .................................................. 26
10 Power Supply Recommendations ..................... 29
10.1 Power-On Reset Requirements ........................... 29
11 Layout................................................................... 31
11.1 Layout Guidelines ................................................. 31
11.2 Layout Example .................................................... 31
12 Device and Documentation Support ................. 32
12.1 Receiving Notification of Documentation Updates 32
12.2 Community Resources.......................................... 32
12.3 Trademarks ........................................................... 32
12.4 Electrostatic Discharge Caution ............................ 32
12.5 Glossary ................................................................ 32
13 Mechanical, Packaging, and Orderable
Information ........................................................... 33
4 Revision History
DATE
September 2016
REVISION
*
NOTES
Initial release.
2
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