Contents
1 Introduction ............................................................................................................................................... 1
2 Features ..................................................................................................................................................... 2
3 Ordering ..................................................................................................................................................... 3
3.1 Ordering Part Numbering Scheme ...................................................................................................... 3
3.2 Options ................................................................................................................................................ 3
3.3 Recommended Parts ........................................................................................................................... 4
Serial Communication ........................................................................................................................... 4
I2C Communication ............................................................................................................................... 4
USB Communication ............................................................................................................................. 4
Power .................................................................................................................................................... 4
Mass Storage ......................................................................................................................................... 4
4 Hardware.................................................................................................................................................... 5
4.1 Available Headers ............................................................................................................................... 5
4.2 Extended Serial Communication/Power Header ................................................................................ 6
4.3 Mini-B USB Communication Connector .............................................................................................. 6
Alternate USB Communication Header................................................................................................. 7
Drivers ................................................................................................................................................... 7
4.4 I
2
C Communication/Power Header ..................................................................................................... 7
4.1 Power Adaptor .................................................................................................................................... 7
4.2 Alternate Power Connector ................................................................................................................ 8
4.3 RS422 Header ...................................................................................................................................... 8
4.4 Mass Storage Mini-B USB Header ....................................................................................................... 9
Alternate USB Mass Storage Header..................................................................................................... 9
Mass Storage Mode .............................................................................................................................. 9
SD Memory Card ................................................................................................................................... 9
4.5 General Purpose Outputs ................................................................................................................. 10
4.6 Keypad Header .................................................................................................................................. 10
5 Troubleshooting ....................................................................................................................................... 11
5.1 Power ................................................................................................................................................ 11
5.2 Display ............................................................................................................................................... 11
5.3 Communication ................................................................................................................................. 11
5.4 Factory Defaults ................................................................................................................................ 11
6 Appendix .................................................................................................................................................. 12
6.1 Dimensional Drawing ........................................................................................................................ 12
6.2 Power Consumption.......................................................................................................................... 13
6.3 Environmental ................................................................................................................................... 13
6.4 Touch Specifications .......................................................................................................................... 13
6.5 Optical Characteristics....................................................................................................................... 13
6.6 ESD Performance............................................................................................................................... 13
6.7 Electrical Characteristics ................................................................................................................... 13
Absolute Maximum Ratings ................................................................................................................ 13
Communication Characteristics .......................................................................................................... 14
6.8 Defect Criteria ................................................................................................................................... 14
Display Specifications .......................................................................................................................... 14
Appearance Specifications .................................................................................................................. 14
7 Definitions ................................................................................................................................................ 15
8 Contact ..................................................................................................................................................... 15
Figure 1: The GTT70A Display
1 Introduction
The Matrix Orbital GTT70A is a full colour TFT display with an integrated touch screen, crafted to become
a crisp, controllable canvas for creativity. Utilizing an extended version of our widely used command
library and industry standard communication protocols, the customizable GTT70A series contains an
intelligent display that will quickly become the gorgeous face of your application.
1
GTT70A Hardware Manual
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