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User's Guide
SLVUA59A–March 2014–Revised July 2014
IO Expander EVM
This document is the user's guide for the IO Expander Evaluation Module (EVM). The IO Expander EVM
allows for evaluation of the IO expander line of TI parts. The TCA6424A and TCA9539 come installed on
the board and the 24-pin TSSOP footprint also supports TCA6408A, TCA6416A, TCA9534, TCA9534A,
TCA9535, TCA9538, TCA9554, TCA9554A, and TCA9555.
Contents
1 About This Manual........................................................................................................... 2
2 Information About Cautions and Warnings............................................................................... 2
3 Items Required For Operation ............................................................................................. 2
4 Introduction ................................................................................................................... 3
5 Setup .......................................................................................................................... 4
5.1 Header and Jumper Connection Descriptions .................................................................. 4
5.2 LED Outputs......................................................................................................... 4
5.3 LaunchPad Hardware and Firmware Setup .................................................................... 5
5.4 GUI Software Setup ................................................................................................ 7
5.5 Getting Started Using the IO Expander EVM ................................................................... 8
6 Schematic ................................................................................................................... 12
7 Board Layout................................................................................................................ 13
8 Bill of Materials ............................................................................................................. 15
List of Figures
1 IO Expander EVM ........................................................................................................... 3
2 TCA6424A Tab (24-bit IO Expander) on GUI............................................................................ 9
3 IO Ports Tab (16-bit Part Installed) on GUI............................................................................. 10
4 IO Ports Tab (8-bit Part Installed) on GUI .............................................................................. 11
5 IO Expander EVM Schematic............................................................................................. 12
6 PCB Layer 1 (Top Layer).................................................................................................. 13
7 PCB Layer 2 (Bottom Layer).............................................................................................. 14
List of Tables
1 Device and Package Configurations ...................................................................................... 3
2 Bill of Materials ............................................................................................................. 15
1
SLVUA59A–March 2014–Revised July 2014 IO Expander EVM
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Verzeichnis
- ・ Blockdiagramm on Seite 12
- ・ Anwendungsbereich on Seite 16 Seite 19
