This document describes a PIC16C57 based code
hopping automotive security system. The security sys -
tem implements all the basic features found on security
systems and can be changed to modify or add features
as required. The code can also be moved to a higher
functionality PIC
®
microcontroller for more I/O or code
space. AN645
PIC16C57 Based Code Hopping Security System
Author: Kobus Marneweck PINOUT
Microchip Technology Inc.
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OVERVIEW T0CKI
VDD
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