Microchip HCS500 Manual

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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 – KEELOQ HCS30X, 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 KEELOQ to 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

KEELOQ Encoders

•TB003 – An Introduction to KEELOQ Code Hopping

•TB021 – A Guide to Designing for EuroHomelink

Compatibility

•TB042 – Interfacing a KEELOQ Encoder to a PLL

Circuit

•TB043 – KEELOQ CRC Verification

Routines

M i c r o c h i p T e c h n o l o g y I n c . ·

HCS4XX Family Lineup

User Maximum

Memory Function Receive Modulation Transmitters Serial VLOW Encoder Operating Packages

Product (bits) Outputs Bits Format Learned Interface Output Supported Voltage Pins

HCS500 1K* 1 67 7 8PWM Yes Yes HCS200, 201, 300 4.5V – 5.5V P, 8SM

HCS301, 320, 360

HCS361, 410, 412

HCS512 — 4 467 PWM Yes Yes HCS200, 201, 300 3.0V – 6.0V 18P, 18SO

HCS301, 320, 360

HCS361, 410, 412

HCS515 1K 2 767 PWM Yes Yes HCS200, 201, 300 4.5V – 5.5V 14P, 14SL

HCS301, 320, 360

HCS361, 410, 412

* With external EEPROM

Information subject to change. The Microchip name and logo, The Embedded Control Solutions Company, PIC, PICmicro, PICSTART, PRO MATE, MPLAB, and KEELOQ are registered trademarks

of Microchip Technology Incorporated in the U.S.A. and other countries. In-Circuit Serial Programming, ICSP, ICEPIC, microID, MXDEV, MPLIB, MPLINK, MPASM, PICC, and PICDEM.net are

trademarks of Microchip in the U.S.A. SQTP is a service mark of Microchip Technology Inc. All other trademarks mentioned herein are the property of their respective companies.

*DS41161A*

Microchip Technology Inc. •2355 W. Chandler Blvd. •Chandler, AZ 85224-6199 •(480) 792-7200 •FAX (480) 792-9210

Customer Support:

Microchip maintains a worldwide network of distributors, representatives, local sales offices, Field Application Engineers, and

Additional Information:

•Microchip’s web site: www.microchip.com

•Microchip’s Technical Library CD-ROM, Order No. DS00161

•Secure Data Products Handbook, Order No. DS40168

•Application Notes are available in:

– Embedded Control Handbook, Order No. DS00092

– Embedded Control Handbook, , Volume 2, Math Library Order No. DS00167

–Embedded Control Handbook Update 2000, Order No. DS00711

•Microchip’s Non-Volatile Memory Products Data Book, Order No. DS00157

•Microchip’s Overview, Quality Systems and Customer Interface System, Order No. DS00169

•Third Party software and hardware support:

– Emulators

– Programmers

– Gang Programmers

– Software Tools

– Development Boards and Accessories

– Design Consultants

– Third Party Guide, Order No. DS00104

Development Tools from Microchip Resale Price*

KEEL LOQ Evaluation Kit Demonstrate, evaluate and prototype KEE OQ devices $299

KEEL LOQ Transponder Evaluation Kit Demonstrate, evaluate and prototype KEE OQ devices $399

*All prices are manufacturer’s suggested resale for North America.

Frequently asked questions

What is KEELOQ Code Hopping and why do I need it?

KEELOQ Code Hopping is a technology developed specifically for secure remote keyless entry and authentication. The basic principle is that the

code change (hop) each time it is transmitted. It is equivalent to changing the mechanical key on a door each time after you lock or unlock the

door. This makes it nearly impossible for a thief to capture and re-transmit the code used to lock/unlock a door or vehicle.

How do I get started with KEELOQ?

The easiest way to get hands-on experience with KEELOQ is to purchase a KEELOQ Evaluation Kit. The evaluation kit contains a complete hardware

system that includes receiver, decoder and different learning options. It also includes easy to use software that allows you to program the various

devices and display the results of encrypting and decrypting data.

What is the KEE OQL Licensing disk and how do I get it?

The KEELOQ Licensing disk contains various firmware implementations of decoders that enable you to decrypt the code-hopping portion of the

KEELOQ transmissions. It also contains application notes and Windows® software that allows you to encrypt, decrypt and experiment with various

Learning Schemes. The Licensing disk is free and available through the Literature Center (DS40149).

What is Learning?

Learning is a method to match the encoder (transmitter) to the decoder (receiver). There are various Learning methods that depend on the level of

security the user requires.

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	HCS500

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