HCS300_11 MICROCHIP [Microchip Technology], HCS300_11 Datasheet
HCS300_11
Related parts for HCS300_11
HCS300_11 Summary of contents
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FEATURES Security • Programmable 28-bit serial number • Programmable 64-bit encryption key • Each transmission is unique • 66-bit transmission code length • 32-bit hopping code • 28-bit serial number, 4-bit button code, 2-bit status • ...
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HCS300 The crypt key, serial number and configuration data are stored in an EEPROM array which is not accessible via any external connection. The EEPROM data is pro- grammable but read-protected. The data can be veri- fied only after an ...
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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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HCS300 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 the typical application circuits (Figure 2-1), the HCS300 is a simple device to use. It requires only the addition of buttons and RF circuitry for use as the transmitter in your security application. A ...
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HCS300 3.0 EEPROM MEMORY ORGANIZATION The HCS300 contains 192 bits (12 x 16-bit words) of EEPROM memory (Table 3-1). This EEPROM array is used to store the encryption key information, synchronization value, etc. Further descriptions of the memory array is ...
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CONFIG (Configuration Word) The Configuration Word is a 16-bit word stored in EEPROM array that is used by the device to store information used during the encryption process, as well as the status of option configurations. The following sections ...
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HCS300 4.0 TRANSMITTED WORD 4.1 Code Word Format The HCS300 code word is made up of several parts (Figure 4-1). Each code word contains a 50% duty cycle preamble, a header, 32 bits of encrypted data and 34 bits of ...
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Synchronous Transmission Mode Synchronous Transmission mode can be used to clock the code word out using an external clock. To enter Synchronous Transmission mode, the Pro- gramming mode start-up sequence must be executed as shown in Figure 4-3. If ...
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HCS300 5.0 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 ...
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Blank Alternate Code Word Federal Communications Commission (FCC) part 15 rules specify the limits on worst case average funda- mental power and harmonics that can be transmitted in a 100 ms window. For FCC approval purposes, it may therefore ...
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HCS300 6.0 PROGRAMMING THE HCS300 When using the HCS300 in a system, the user will have to program some parameters into the device including the serial number and the secret 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 ...
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HCS300 7.0 INTEGRATING THE HCS300 INTO A SYSTEM Use of the HCS300 in a system requires a compatible decoder. This decoder is typically a microcontroller with compatible firmware. Microchip will provide (via a license agreement) firmware routines that accept 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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HCS300 FIGURE 7-3: SYNCHRONIZATION WINDOW Entire Window rotates to eliminate use of previously used codes DS21137G-page 16 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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HCS300 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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HCS300 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 TABLE 9-1: ABSOLUTE MAXIMUM RATINGS Symbol V Supply voltage Output voltage OUT I Max output current OUT T Storage temperature STG T Lead soldering temp LSOL V ESD Note: Stresses above those listed ...
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HCS300 FIGURE 9-1: POWER-UP AND TRANSMIT TIMING Button Press Detect PWM Output Button Input Sn TABLE 9-3: POWER-UP AND TRANSMIT TIMING V = +3.5 to 13.0V DD Commercial(C): Tamb = 0°C to +70°C Industrial(I): ...
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FIGURE 9-3: CODE WORD FORMAT: PREAMBLE/HEADER PORTION 50% Duty Cycle Preamble E FIGURE 9-4: CODE WORD FORMAT: DATA PORTION LSB MSB Bit 0 Bit 1 Bit 30 Bit 31 Bit 32 Bit 33 Bit 58 Bit 59 ...
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HCS300 FIGURE 9-5: HCS300 TE VS. TEMP 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 -50 -40 -30 -20 - DS21137G-page 24 Typical LEGEND = 2.0 ...
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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) WW ...
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HCS300 10.2 Package Details /HDG 3ODVWLF 'XDO ,Q/LQH 3 ± PLO %RG\ >3',3@ 1RWH 1RWHV DS21137G-page 26 © 2011 Microchip Technology Inc. ...
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Note: © 2011 Microchip Technology Inc. HCS300 DS21137G-page 27 ...
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HCS300 Note: DS21137G-page 28 © 2011 Microchip Technology Inc. ...
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PP %RG\ >62,&@ 1RWH © 2011 Microchip Technology Inc. HCS300 DS21137G-page 29 ...
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HCS300 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 ...
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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 web ...
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HCS300 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 ...
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HCS300 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. HCS300 - /P Package: Temperature Range: Device: © 2011 Microchip Technology Inc Plastic DIP (300 ...
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HCS300 NOTES: DS21137G-page 34 © 2011 Microchip Technology Inc. ...
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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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