HCS200_11 MICROCHIP [Microchip Technology], HCS200_11 Datasheet
HCS200_11
Related parts for HCS200_11
HCS200_11 Summary of contents
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FEATURES Security • Programmable 28-bit serial number • Programmable 64-bit crypt key • Each transmission is unique • 66-bit transmission code length • 32-bit hopping code • 28-bit serial number, 4-bit button status, low battery indicator ...
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HCS200 The HCS200 combines a 32-bit hopping code, generated by a non-linear encryption algorithm, with a 28-bit serial number and 6 information bits to create a 66-bit code word. The code word length eliminates the threat of code scanning and ...
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Statis- tically, if only one bit in the 32-bit string of information changes, greater than 50 percent of the coded trans- mission bits will change. As indicated in the block diagram on page one, ...
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HCS200 FIGURE 1-2: BUILDING THE TRANSMITTED CODE WORD (ENCODER) EEPROM Array Crypt Key Sync Counter Serial Number FIGURE 1-3: BASIC OPERATION OF RECEIVER (DECODER) 1 Received Information Button Press Serial Number Information Check for 2 Match Perform Function Indicated by ...
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ENCODER OPERATION As shown in Figure 2-1, the HCS200 is a simple device to use. It requires only the addition of buttons and RF circuitry for use as the transmitter in your security appli- cation. A description of each ...
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HCS200 3.0 EEPROM MEMORY ORGANIZATION The HCS200 contains 192 bits (12 x 16-bit words) of EEPROM memory (Table 3-1). This EEPROM array is used to store the crypt key information, synchronization value, etc. Further descriptions of the memory array is ...
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If the discrimi- nation value was programmed as the 12 LSb’s of the serial number then it may merely be compared to the respective bits of ...
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HCS200 FIGURE 4-1: CODE WORD FORMAT LOGIC ‘0’ LOGIC ‘1’ Bit Period 50% Duty Cycle Preamble T P FIGURE 4-2: CODE WORD ORGANIZATION 34 bits of Fixed Portion Fixed V Button LOW (1-bit) (1-bit) ...
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SPECIAL FEATURES 5.1 Code Word Completion The code word completion feature ensures that entire code words are transmitted, even if the button is released before the code word is complete. If the but- ton is held down beyond the ...
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HCS200 6.0 PROGRAMMING THE HCS200 When using the HCS200 in a system, the user will have to program some parameters into the device, such as the serial number and crypt key, before it can be used. The programming cycle allows ...
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TABLE 6-1: PROGRAMMING/VERIFY TIMING REQUIREMENTS V = 5.0V ± 10%, 25°C ± 5 °C DD Parameter Symbol Program mode setup time Hold time 1 Hold time 2 Bulk Write time Program delay time Program cycle time Clock low time Clock ...
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HCS200 7.0 INTEGRATING THE HCS200 INTO A SYSTEM An HCS200 based system requires a compatible decoder. The decoder is typically a microcontroller with compatible firmware. Microchip provides, via a license agreement, firmware routines that will receive and authenticate HCS200 transmissions. ...
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Decoder Operation Figure 7-2 summarizes normal decoder operation. The decoder waits until a transmission is received. The received serial number is compared to the EEPROM table of learned transmitters to first determine if this transmitter's use is allowed in ...
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HCS200 FIGURE 7-3: SYNCHRONIZATION WINDOW Entire Window rotates to eliminate use of previously used codes DS40138D-page 14 Blocked Window (32K Codes) Stored Synchronization Counter Value Double Operation (resynchronization) Single Operation Window Window (32K Codes) (16 Codes) © 2011 Microchip Technology ...
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DEVELOPMENT SUPPORT ® The PIC microcontrollers and dsPIC controllers are supported with a full range of software and hardware development tools: • Integrated Development Environment ® - MPLAB IDE Software • Compilers/Assemblers/Linkers - MPLAB C Compiler for Various Device ...
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HCS200 8.2 MPLAB C Compilers for Various Device Families The MPLAB C Compiler code development systems are complete ANSI C compilers for Microchip’s PIC18, PIC24 and PIC32 families of microcontrollers and the dsPIC30 and dsPIC33 families of digital signal control- ...
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MPLAB SIM Software Simulator The MPLAB SIM Software Simulator allows code development in a PC-hosted environment by simulat- ® ing the PIC MCUs and dsPIC DSCs on an instruction level. On any given instruction, the data areas can be ...
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HCS200 8.11 PICkit 2 Development Programmer/Debugger and PICkit 2 Debug Express The PICkit™ 2 Development Programmer/Debugger is a low-cost development tool with an easy to use inter- face for programming and debugging Microchip’s Flash families of microcontrollers. The ® Windows ...
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ELECTRICAL CHARACTERISTICS (†) Absolute Maximum Ratings V Supply voltage ......................................................................................................................................-0.3 to 13. Input voltage ............................................................................................................................................ -0 Output voltage ........................................................................................................................... -0 OUT I Max output current ......................................................................................................................................... 25 mA OUT T Storage ...
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HCS200 FIGURE 9-1: TYPICAL ICC CURVE OF HCS200 WITH EXTERNAL RESISTORS 12.0 10.0 8.0 6.0 4.0 2.0 0 12.0 10.0 8.0 6.0 4.0 2.0 0 12.0 10.0 8.0 6.0 4.0 2.0 0 ...
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FIGURE 9-2: POWER-UP AND TRANSMIT TIMING Button Press Detect PWM Output Button Input Sn TABLE 9-2: POWER-UP AND TRANSMIT TIMING V = +3.5 to 13.0V DD Commercial(C): Tamb = 0°C to +70°C Industrial(I): Tamb ...
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HCS200 FIGURE 9-4: CODE WORD FORMAT: PREAMBLE/HEADER PORTION 50% Duty Cycle Preamble E FIGURE 9-5: CODE WORD FORMAT: DATA PORTION LSB MSB Bit 0 Bit 1 Bit 30 Bit 31 Bit 32 Bit 33 Bit 58 Bit ...
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FIGURE 9-6: HCS200 TE VS. TEMP (BY CHARACTERIZATION) 1.7 1.6 1.5 1.4 1.3 1.2 TE 1.1 1.0 0.9 0.8 0.7 0.6 -50 -40 -30 -20 - © 2011 Microchip Technology ...
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HCS200 10.0 PACKAGING INFORMATION 10.1 Package Marking Information 8-Lead PDIP XXXXXXXX XXXXXNNN YYWW 8-Lead SOIC XXXXXXX XXXYYWW NNN Legend: XX...X Customer specific information* Y Year code (last digit of calendar year) YY Year code (last 2 digits of calendar year) ...
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Package Details /HDG 3ODVWLF 'XDO ,Q/LQH 3 ± PLO %RG\ >3',3@ 1RWH 1RWHV © 2011 Microchip Technology Inc. HCS200 DS40138D-page 25 ...
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HCS200 Note: DS40138D-page 26 © 2011 Microchip Technology Inc. ...
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Note: © 2011 Microchip Technology Inc. HCS200 DS40138D-page 27 ...
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HCS200 /HDG 3ODVWLF 6PDOO 2XWOLQH 61 ± 1DUURZ PP %RG\ >62,&@ 1RWH DS40138D-page 28 © 2011 Microchip Technology Inc. ...
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APPENDIX A: ADDITIONAL INFORMATION Microchip’s Secure Data Products are covered by some or all of the following: Code hopping encoder patents issued in European countries and U.S.A. Secure learning patents issued in European countries, U.S.A. and R.S.A. REVISION HISTORY Revision ...
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HCS200 THE MICROCHIP WEB SITE Microchip provides online support via our WWW site at www.microchip.com. This web site is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the ...
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READER RESPONSE It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip product. If you wish to provide your comments on organization, clarity, subject matter, and ways in which our documentation ...
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HCS200 HCS200 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. HCS200 - /P Package: Temperature Range: Device: DS40138D-page Plastic DIP (300 mil Body), ...
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Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families ...
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