Microchip HCS500 Handleiding

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KEELOQ®HCS5XX Decoder Family

The HCS5XX decoder utilizes the patented KEELOQ®

code-hopping system and high security learning

mechanisms to make this canned solutions when used

with the HCS encoders to implement uni-directional

remote and access control systems. The HCS5XX

decoders operate over a wide voltage range and can be

used as stand-alone decoders or in conjunction with a

PICmicro® MCU through serial or parallel interface.

Microchip also offers a variety of software decoders that

allows the system designer to integrate the KEELOQ

decoding functions with their application onto a single

PICmicro MCU. The software decoders come as part of a

licensing package (DS40149) and include the decoding

algorithm, receive routines and support various learning

schemes to reduce development time and get the product

to market faster.

Security Features:

•Encrypted storage of manufacturer’s code

•Encrypted storage of encoder decryption keys

•Up to seven transmitters can be learned code

hopping technology

•Normal and secure learning mechanisms

Operating Features:

•4.5V – 5.5V operation

•Internal oscillator

•Auto-bit rate detection

Other Features:

•Stand-alone decoder

•Internal EEPROM for transmitter storage

•Synchronous serial interface

•1 Kbit user EEPROM

•14-pin DIP/SOIC package

Compatible Encoders (PWM Mode):

•HCS200, HCS201, HCS300, HCS301, HCS320,

HCS360, HCS361, HCS362, HCS365, HCS370,

HCS410, HCS412, HCS473

Typical Applications:

•Automotive remote entry systems

•Automotive alarm systems

•Automotive immobilizers

•Gate and garage openers

•Electronic door locks

•Identity tokens

•Burglar alarm systems

Related Application Notes:

•AN217 – KEELOQHCS30X, HCS200 Stand-Alone

Programmer

•AN645 – PIC16C57 -Based Code Hopping

Security System

•AN661 – Code Hopping Decoder using PIC16C56

•AN662 – Code Hopping Decoder using Secure

Learn

•AN663 – Simple Code Hopping Decoder

•AN665 – Using KEELOQto Generate Hopping

Passwords

•AN672 – PICmicro® Mid-range MCU Code

Hopping Decoder

•AN740 – Decoding the HCS101 for Non-Secure

Applications

•AN742 – Modular PICmicro Mid-Range Code

Hopping Decoder

•AN744 – Modular Mid-Range PICmicro KEELOQ

Decoder in C

•TB001 – Secure Learning RKE Systems using

KEELOQEncoders

•TB003 – An Introduction to KEELOQCode Hopping

•TB021 – A Guide to Designing for EuroHomelink

Compatibility

•TB042 – Interfacing a KEELOQEncoder to a PLL

Circuit

•TB043 – KEELOQCRC Verification

Routines

Microchip Technology Inc. ·

Product specificaties