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| KEELOQ(R) HCS1XX/2XX/3XX Encoder Family The KEELOQ(R) family of encoders offers a complete range of products for Remote Control and secure Remote Keyless Entry (RKE) Applications. The encoders range from the HCS101, a fixed code encoder designed for remote control systems to the HCS2XX and HCS3XX products, which utilize Microchip's patented KEELOQ hopping technology. The devices incorporates a small package outline, low cost and the minimum external components to make these device suited for unidirectional remote keyless entry, remote control and access control systems. The Code Hopping Encoders combine a 32-bit hopping code generated by a non-linear encryption algorithm, with a 32-bit serial number and information bits to create a transmission stream of up to 69 bits. The length of the transmission eliminates the threat of code scanning, and the code hopping mechanism makes each transmission unique, thus rendering code capture and resend schemes useless. Security Features: * * * * * * * * * * * * * * * * * * * * * * * * * * * * Up to 2 programmable 32-bit serial numbers Up to 2 programmable 64-bit encoder keys Up to 2 programmable 60-bit seed values Each transmission is unique Up to 69-bit transmission code length 32-bit hopping code Encoder keys are read protected 2.0 - 13.3V operation Up to six button inputs 15 functions available Up to four selectable baud rates Selectable minimum code word completion Battery low signal transmitted to receiver Nonvolatile synchronization data PWM, VPWM, PPM and Manchester modulation Button queue information transmitted Dual Encoder functionality On-chip EEPROM On-chip tuned oscillator (10%) Button inputs have internal pull-down resistors LED output PLL control for ASK and FSK Low external component count Automotive RKE systems Automotive alarm systems Automotive immobilizers Gate and garage door openers 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(R) 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 Operating Features: Other Features: Typical Applications: 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 HCS4XX Family Lineup Encryption Product HCS101 HCS200 HCS201 HCS300 HCS301 HCS320 HCS360 HCS361 HCS362 TSSOP Manchester, CRC, Tuned osc HCS365 2 x 64 4 69 32 60 Tuned osc, Dual mode, PWM, PPM, Manchester, VPWM 2.0V - 5.5V 8P, 8SM * * * Code word Switch Inputs 3 3 3 4 4 4 4 4 4 Code Hopping (bits) -- 32 32 32 32 32 32 32 32 Seed Length (bits) -- 32 32 32 32 32 48 48 60 Key (bits) -- 64 64 64 64 64 64 64 64 Length (bits) 66 66 66 66 66 66 67 67 69 Other Features Tuned oscillator -- Tuned osc, Step-up Regulator LED, Time-out, overflow LED, Time-out, overflow LED, Time-out, overflow, shift function Time-out, overflow, IR Mode, PWM, Manchester, CRC Time-out, overflow, IR Mode, PWM VPWM, CRC Time-out, Guard Time, PWM, Operating Voltage 3.5V - 13V 3.5V - 13V 3.5V - 13V 2.0V - 6.3V 3.5V - 13V 3.5V - 13V 2.0V - 6.3V 2.0V - 6.3V 2.0V - 6.3V Packages Pins 8P, 8SN 8P, 8SN 8P, 8SN 8P, 8SN 8P, 8SN 8P, 8SN 8P, 8SN 8P, 8SN 8P, 8SN, KEELOQ Evaluation Kit KEELOQ Transponder Evaluation Kit Development Tools from Microchip Demonstrate, evaluate and prototype KEELOQ devices Demonstrate, evaluate and prototype KEELOQ devices Frequently asked questions Resale Price* $299 $399 *All prices are manufacturer's suggested resale for North America. 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 KEELOQ 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(R) 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. Customer Support: Microchip maintains a worldwide network of distributors, representatives, local sales offices, Field Application Engineers, and Microchip Technology Inc. * 2355 W. Chandler Blvd. * Chandler, AZ 85224-6199 * (480) 792-7200 * FAX (480) 792-9210 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. (c) 2001 Microchip Technology Inc. All rights reserved. Printed in the U.S.A. 6/01 DS41162A *DS41162A* |
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