HCS500/SM Microchip Technology, HCS500/SM Datasheet
HCS500/SM
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HCS500/SM Summary of contents
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... Microchip Technology Inc. ® Code Hopping Decoder DESCRIPTION The Microchip Technology Inc. HCS500 is a code hop- ping decoder designed for secure Remote Keyless Entry (RKE) systems. The HCS500 utilizes the pat- ented K L code hopping system and high security ...
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... Note: The manufacturer code is a pivotal part of the system’s overall security. Conse- quently, all possible precautions must be taken and maintained for this code. 2002 Microchip Technology Inc. ...
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... FIGURE 1-2: BUILDING THE TRANSMITTED CODE WORD (ENCODER) EEPROM Array Crypt Key Sync Counter Serial Number 2002 Microchip Technology Inc. Key Crypt Key A receiver may use any type of controller as a decoder, but it is typically a microcontroller with compatible firm- ware that allows the decoder to operate in conjunction with an HCS500 based transmitter ...
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... Description (1) Type — Power Connection 2 ™ TTL Clock EEPROM 2 TTL Data EEPROM ST Master clear input TTL Synchronous data from controller TTL Synchronous clock from controller TTL RF input from receiver — Ground connection Sync Counter Crypt Key Match 2002 Microchip Technology Inc. ...
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... ERASE_ALL transmitters and relearn all available transmitters. 2002 Microchip Technology Inc. 3: Learning a transmitter with a crypt key that is identical to a transmitter already in mem- ory replaces the existing transmitter. In practice, this means that all transmitters should have unique crypt keys. Learning a previously learned transmitter does not use any additional memory slots ...
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... DS40153C-page 6 FIGURE 3-2: DECODER OPERATION Start No Transmission Received? Yes Does No Ser # Check Val Match? Yes Decrypt Transmission Is No decryption valid? Yes Execute Command Is Yes counter within 16? Update Counter counter within 16K? Yes Save Counter in Temp Location 2002 Microchip Technology Inc. and ...
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... SYNCHRONIZATION WINDOW Entire Window rotates to eliminate use of previously used codes 2002 Microchip Technology Inc. A "Double Operation" (resynchronization) window fur- ther exists from the Single Operation window up to 32K codes forward of the currently stored counter value referred to as "Double Operation" because a trans- ...
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... Vss EE_CLK RFIN 3 6 EE_DAT S_CLK 4 5 MCLR S_DAT HCS500 T CLKL T CLKH CNT0 CNT3 LOW Information RF RECEIVER SYNC CLOCK SYNC DATA MICRO RESET TX0 TX3 RX0 RX1 RX62 RX63 Received String Ci Cii 2002 Microchip Technology Inc. ...
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... T RESP Decoder Data Start Command A B 2002 Microchip Technology Inc. 4.2.2 COLLISION DETECTION The HCS500 uses collision detection to prevent clashes between the decoder and microcontroller. Whenever the decoder receives a valid transmission the following sequence is followed: • The decoder first checks to see if the clock line is high ...
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... Read a byte from user EEPROM 16 E1 Write a byte to user EEPROM 16 D2 Activate a learn sequence on the decoder 16 C3 Activate an erase all function on the decoder 16 B4 Program manufacturer’s code and configuration byte 16 Max 2.5 ms BPW = 2.7 ms MAX 170 ms Operation 2002 Microchip Technology Inc. ...
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... Decoder DATA Start Command Command Byte A B 2002 Microchip Technology Inc. 4.2.6 WRITE BYTE/S TO USER EEPROM The write command (Figure 4-5) is used to write a loca- tion in the user EEPROM. The address byte is trun- cated to seven bits (C to D). The data is clocked in Least Significant bit first. The clock line must be asserted to initiate the write ...
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... LSB Dummy Byte Dummy Byte CLL T CLKH T T CLH CLKL T DHI Command Request Status Byte CLKH CNT0 CNT3 1 Learn Status Bits T T ACK LRN T RESP MSB T ACK 2 Acknowledge TX0 TX3 RX0 RX1 RX62 RX63 Decoded Tx Ci Cii 2002 Microchip Technology Inc. ...
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... Subcommand 01 can be used where a transmitter with permanent status is implemented in the microcontroller software. Use of subcommand 01 ensures that the per- manent transmitter remains in memory even when all 2002 Microchip Technology Inc. HCS500 other transmitters are erased. The first transmitter learned after any of the following events is the first ...
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... Erase-All Activation C Vcc RF Receiver LEARN RFIN 7 EECLK SCLK 6 EEDAT SDAT 5 MCLR 10K HCS500 10K 10K 22 F LED T T ACK ERA T RESP MSB T 2 ACK Acknowledge Successful D E OUTPUT Vcc RELAY SPST NPN In-circuit Programming Probe Pads (Note) 2002 Microchip Technology Inc. ...
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... LRN_ALG = 1, the XOR algorithm is selected. See Section 6.0 for more detail on learning algorithms. 5.1.3 REPEAT The HCS500 can be configured to indicate repeated transmissions stand-alone configuration, repeated transmis- sions must be disabled. 2002 Microchip Technology Inc. Description LRN_MODE = 0—Normal Learn LRN_MODE = 1—Secure Learn LRN_ALG = 0—K L ...
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... H). If the data line goes high within 30 ms after the clock goes high, programming also fails CMD ADDR DATA T DS LSB MSB MSB Configuration Byte Least Significant Byte DATA ACK LSB MSB T AW Most Significant Byte Acknowledge 2002 Microchip Technology Inc. ...
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... Then, using the manufacturer’s code the crypt key is derived as follows: KeyH = SourceH XOR 64-Bit Manufacturer’s Code Upper 32 bits KeyL = SourceL XOR 64-Bit Manufacturer’s Code Lower 32 bits 2002 Microchip Technology Inc decryption algorithm and the 28-bit serial number of the transmitter to derive 28 Bits 28 Bits (SourceH) | 64-Bit Manufacturer’ ...
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... LOGIC "1" 10xT Encrypted E Header Portion 32 bits of Encrypted Portion Serial Number Button OVR (28 bits) Status (2 bits Serial Number (28 bits Fixed Code Guard Portion Time DISC Sync Counter (10 bits) (16 bits) LSb 66 Data bits Transmitted LSb first. SEED (32 bits) LSb 2002 Microchip Technology Inc. ...
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... This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operation listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. 2002 Microchip Technology Inc. (except V )......................................................................... -0. ......................................................................................................... ± ...
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... Units Conditions MHz 5.5V OSC DD A SLEEP mode (no RF input 3.0V, Commercial 3.0V, Industrial between 4.5V and 5. Otherwise V MCLR V V between 4.5V and 5. Otherwise V MCLR 8 -5 Units Conditions 2002 Microchip Technology Inc. ...
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... FIGURE 8-1: RESET WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP TIMER TIMING V DD MCLR I/O Pins 2002 Microchip Technology Inc. HCS500 T MCLR Tov DS40153C-page 21 ...
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... Standard Operating Conditions (unless otherwise specified): Commercial (C): 0°C TA +70°C Industrial (I): -40°C TA +85°C Min Typ 20 — — — 20 — — — Max Units 500 1000 s 1000 s 1000 s 25000 Hz — Max Units 1500 s Max Units 1000 1000 2002 Microchip Technology Inc. ...
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... Clock high time CLKH T Clock low time CLKL F Clock frequency CLK T Data hold time DS * These parameters are characterized but not tested. 2002 Microchip Technology Inc. Standard Operating Conditions (unless otherwise specified): Commercial (C): 0°C TA +70 °C Industrial (I): -40°C TA +85°C Min Typ 20 — ...
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... Min Typ — — — — 20 — — — 20 — 20 — 500 — — — — — 30 — 20 — — — Max Units 1000 s 210 ms 1000 Max Units 500 1000 1000 s 1000 s 25000 240 ms 1000 2002 Microchip Technology Inc. ...
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... SCL SDA 24LC02B V CC Power Supply Supervisor Vi RST MCP100-4.5 Note: Because each HCS500 is individually matched to its EEPROM, in-circuit programming is strongly recommended. 2002 Microchip Technology Inc. RF Receiver RFIN 7 EECLK SCLK 6 CLOCK EEDAT SDAT 5 DATA MCLR MCLR HCS500 10K HCS500 Microcontroller In-circuit Programming ...
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... For PICmicro device marking beyond this, certain price adders apply. Please check with your Microchip Sales Office. For QTP devices, any special marking adders are included in QTP price. DS40153C-page 26 Example HCS500 XXXXXNNN 0025 Example HCS500 XXX0025 NNN 2002 Microchip Technology Inc. ...
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... Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter § Significant Characteristic Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: MS-001 Drawing No. C04-018 2002 Microchip Technology Inc ...
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... B .014 .017 .020 MILLIMETERS MIN NOM MAX 8 1.27 1.78 1.97 2.03 1.75 1.88 1.98 0.05 0.13 0.25 7.62 7.95 8.26 5.11 5.28 5.38 5.13 5.21 5.33 0.51 0.64 0. 0.20 0.23 0.25 0.36 0.43 0. 2002 Microchip Technology Inc. ...
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... Microchip Products • Conferences for products, Development Systems, technical information and more • Listing of seminars and events 2002 Microchip Technology Inc. HCS500 Systems Information and Upgrade Hot Line The Systems Information and Upgrade Line provides system users a listing of the latest versions of all of Microchip's development systems software products ...
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... What deletions from the data sheet could be made without affecting the overall usefulness there any incorrect or misleading information (what and where)? 7. How would you improve this document? 8. How would you improve our software, systems, and silicon products? DS40153C-page 30 Total Pages Sent FAX: (______) _________ - _________ N Literature Number: DS40153C 2002 Microchip Technology Inc. ...
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... Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products. 2002 Microchip Technology Inc Plastic DIP (300 mil Body), 8-lead SM = Plastic SOIC (207 mil Body), 8-lead Blank = 0° ...
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... HCS500 NOTES: DS40153C-page 32 2002 Microchip Technology Inc. ...
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... Serialized Quick Turn Programming (SQTP service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2002, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system ...
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... Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea 135-882 Tel: 82-2-554-7200 Fax: 82-2-558-5934 Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-334-8870 Fax: 65-334-8850 Taiwan Microchip Technology Taiwan 11F-3, No. 207 ...