GPIO EXPANDER KEYPAD
AND LCD DEMO BOARD
USER ’S GUIDE
Appendix A. Schematics and Board Layouts
A.1
INTRODUCTION
This appendix contains the schematic and PCB layout for the GPIO Expander Keypad
and LCD Demo Board. Diagrams included:
? Board Schematics - Pages 1 - 3.
? Board - Top Layer (with silk screen)
? Board - Bottom Layer
? 2006 Microchip Technology Inc.
DS51636A-page 15
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