HCS370/ST Microchip Technology, HCS370/ST Datasheet
HCS370/ST
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HCS370/ST Summary of contents
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... These applications include: • Automotive RKE systems • Automotive alarm systems • Automotive immobilizers • Gate and garage door openers • Identity tokens • Burglar alarm systems 2002 Microchip Technology Inc. ® Code Hopping Encoder PACKAGE TYPES PDIP, SOIC, TSSOP SLEEP/S5 ...
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... A block cipher based on a block length of 32 bits and a key length of 64 bits is used. The algorithm obscures the information in such a way that if a single hopping code data bit changes (before encryption), sta- tistically more than 50% of the encrypted data bits will change. Preliminary technol 2002 Microchip Technology Inc. ...
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... If the serial num- ber is from a learned transmitter, the message is decrypted and the synchronization counter is verified. 2002 Microchip Technology Inc. The crypt key generation typically inputs the transmitter serial number and 64-bit manufacturer’s code into the key generation algorithm (Figure 1-1). The manufac- turer’ ...
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... NOTE: Circled numbers indicate the order of execution. DS41111D-page Encryption Algorithm Button Press Serial Number Information Transmitted Information EEPROM Array 32 Bits of Manufacturer Code Encrypted Data B0 Serial Number B1 Sync Counter Crypt Key Decryption Algorithm Decrypted Verify Synchronization 4 Counter Counter Preliminary 32 Bits Encrypted Data 2002 Microchip Technology Inc. ...
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... When a time-out occurs, the device will go into SLEEP mode to protect the battery from draining when a button gets stuck. This option must be chosen to meet maxi- mum transmission length regulatory limits which vary by country. 2002 Microchip Technology Inc. FIGURE 2-1: TYPICAL CIRCUITS Figure 2-1(A) V ...
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... FIGURE 2-2: I/O CIRCUITS Figure 2-2(D) DATA, RFEN STEP Outputs Figure 2-2( FIGURE 2-3: I/O CIRCUITS ( CONTINUED ) Figure 2-3(A) S0, S1, S2 S3, S4, SHIFT Inputs Figure 2-3(B) S5/SLEEP Figure 2-3(C) LED Output Preliminary 1. SLEEP N SOEN V DD Weak P LED LED N 2002 Microchip Technology Inc. ...
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... THE DEVICE OPERATION START Sample Buttons Get Config Yes Seed TX? No Increment Counter Encrypt Transmit Yes Time Out No No MTX STOP Yes No Buttons Yes No Yes Seed Seed Time Button No New No Buttons Yes 2002 Microchip Technology Inc. Read Seed Yes No Preliminary HCS370 DS41111D-page 7 ...
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... Format 4.1 PWM VPWM PPM 4.1 E 3.2 5.6 4.1 Once = 1 5.3 5.3 3.3 3.3 3.3 Time (s) 3.3 0.0 0.8 1.6 3 4.1 E 100 200 400 800 Time (ms) 4.1, 5 6.4 51.2 102.4 2002 Microchip Technology Inc. ...
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... Seed Button Code SDTM2 3E: ---- 32-- Time Before Seed Code word BSEL2 3E: --54 ---- Transmission Baud Rate (1) Select GSEL2 3E: 76-- ---- Guard Time Select Note 1: All Timing values vary ±10%. TABLE 3-3: DEVICE OPTIONS 2002 Microchip Technology Inc. (1) Description Value Manchester bits = 0 32 bits = 1 ...
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... Disable = 0 (2) 2 ASK = 0 Value Disable = 0 Disable = 0 (1) Value Preliminary Reference Section Value 4.1 No Wake- 50 33.3% 100 ms 16.7% 20 bits = 1 3.2.1 Enable = 1 3.2.3.1 3. 3.2.3.1 FSK = 1 5.2 Value 2 Enable = 1 5.4 Enable = 1 5.2, 5.4 Time(s) 2.0 0.8 3.2 12.8 25.6 2002 Microchip Technology Inc. ...
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... V LOW 2 Bits 2 Bits 1-Bit 2002 Microchip Technology Inc. serial number. This will be stored by the receiver sys- tem after a transmitter has been learned. The discrimi- nation bits are part of the information that is to form the encrypted portion of the transmission. 3.2.2 FIXED CODE PORTION The 32 bits of fixed code consist of 28 bits of the serial number (SER) and a copy of the 4-bit function code ...
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... SERIAL NUMBER BUT (28 Bits) 4 Bits SERIAL NUMBER BUT (32 Bits) 4 Bits LOW bit is transmit- Preliminary Hopping Code Portion (32 Bits) Synchronization Counter 20 Bits DISC 8 Bits 0 19 Hopping Code Portion (32 Bits) Synchronization Counter 20 Bits DISC 8 Bits 0 19 Transmission Direction LSB First 2002 Microchip Technology Inc. ...
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... Bits 2002 Microchip Technology Inc. the serial number and the seed from a single but- ton press. • The button code for transmitting a seed code word can be selected with the Seed Button (SDBT) configuration option. SDBT bits cor- respond to button inputs S0 to S3. Set the bits high for the button combination that should trigger a seed transmission (i ...
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... LOGIC "0" LOGIC "1" 16 4-10 Encrypted Portion Fixed Code Portion xT E Header START bit bit 0 bit 1 bit 2 16 4xT E Encrypted Portion Header Preliminary or 10T with Guard Time LOGIC "0" LOGIC "1" STOP bit Guard Fixed Code Portion Time 2002 Microchip Technology Inc. ...
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... Wake-up (WAKE) configura- tion option and can be disabled or set to 50 ms, 75 ms, or 100 ms of pulses as indicated in Figure 4-5. • The WAKE option is the same for both Encoder 1 and Encoder 2. 2002 Microchip Technology Inc. LOGIC “0” Transition Low to High T ...
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... CMOS input. Preliminary ) is the debounce also used PLL V REG V BAT Wait 2 seconds for next button if QUEN=1 is low, then the LED will DD greater than 3 volts, be sure to DD 2002 Microchip Technology Inc. ...
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... The decoder can use LOW the CRC bits to check the data integrity before process- ing starts. The CRC can detect all single bit errors and 66% of double bit errors. The CRC is computed as fol- lows: 2002 Microchip Technology Inc. EQUATION 5-1: CRC 1 and CRC 0 with ...
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... Wait for Reception of Second Valid Code Use Generated Key to Decrypt Compare Discrimination Value with Fixed Value L algo Equal Counters Sequential Learn successful Store: Serial number Encryption key Synchronization counter Exit Preliminary TYPICAL LEARN SEQUENCE No ? Yes No ? Yes No ? Yes Learn Unsuccessful 2002 Microchip Technology Inc. ...
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... No Is Counter No Within 32K ? Yes Save Counter in Temp Location 2002 Microchip Technology Inc. 7.3 Synchronization with Decoder (Evaluating the Counter) The sophisticated synchronization technique that does not require the calculation and storage of future codes. The technique securely blocks invalid transmissions while providing transparent resynchronization to transmitters inadvertently activated away from the receiver ...
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... For example button sticks or kids play with it, the counter should not end up in the blocked code window rendering the transmitter useless or requiring retraining. Preliminary L systems more EE OQ 2002 Microchip Technology Inc. ...
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... It can also decrypt K L transmitter’s hopping EE OQ code to help debug and test your decoder software. 2002 Microchip Technology Inc. 8.3 PRO MATE II Universal Device Programmer The PRO MATE II universal device programmer is a full-featured programmer, capable of operating in stand-alone mode, as well as PC-hosted mode. The PRO MATE II device programmer is CE compliant ...
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... DEVELOPMENT TOOLS FROM MICROCHIP MCP2510 MCRFXXX rfHCSXXX HCSXXX 93CXX 25CXX/ 24CXX/ PIC18FXXX PIC18CXX2 PIC17C7XX PIC17C4X PIC16C9XX PIC16F8XX PIC16C8X PIC16C7XX PIC16C7X PIC16F62X PIC16CXXX PIC16C6X PIC16C5X PIC14000 rfPIC12XXXX PIC12CXXX Tools Software Emulators Debugger Programmers DS41111D-page 22 Kits Eval and Boards Preliminary Demo 2002 Microchip Technology Inc. ...
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... Exposure to maximum rating conditions for extended periods may affect device reliability. Note 1: Power dissipation is calculated as follows: Pdis=V 2002 Microchip Technology Inc. ........................................................................................-0. ......................................................................................................... ± ).................................................................................................... ± ...
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... Preliminary +70 C (Commercial) +85 C (Industrial) Conditions Cold RESET MHz, OSC ( 5. MHz, OSC ( 3. 5.5V DD 4.5V V 5.5V DD Otherwise 4.5V V 5.5V DD Otherwise 2.05 V 3.5V DD 2.05 V 3.5V DD Data Internally Inverted setting 5 = 2.25V setting 25 = 4.25V Pin at Hi- SS PIN DD impedance, no pull-downs enabled PIN DD 2002 Microchip Technology Inc. ...
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... SLEEP mode, with all I/O pins in hi-impedance state and tied to V the additional current consumed when the WDT is enabled. This current should be added to the base I 2002 Microchip Technology Inc. Standard Operating Conditions (unless otherwise stated) ...
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... WAIT = 0 — — 285 ms WAIT = 1 45 — 110 ms LEDOS = 0 (min) or LEDOS = 1 (max) 450 500 550 ms 1.8 2T 112.6 ms GSEL = 00 E 5.6 6.4 7.0 ms GSEL = 01 46.1 51.2 56.3 ms GSEL = 10 96.1 102.4 42.6 ms GSEL = 11 Preliminary (min (max) 2 (min (max) 2 2002 Microchip Technology Inc. ...
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... Standard marking consists of Microchip part number, year code, week code, facility code, mask rev#, and assembly code. For marking beyond this, certain price adders apply. Please check with your Microchip Sales Office. For SQTP devices, any special marking adders are included in SQTP price. 2002 Microchip Technology Inc. Example HCS370 ...
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... Preliminary MILLIMETERS MIN NOM MAX 14 2.54 3.56 3.94 4.32 2.92 3.30 3.68 0.38 7.62 7.94 8.26 6.10 6.35 6.60 18.80 19.05 19.30 3.18 3.30 3.43 0.20 0.29 0.38 1.14 1.46 1.78 0.36 0.46 0.56 7.87 9.40 10. 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-012 Drawing No. C04-065 2002 Microchip Technology Inc ...
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... B1 .007 .010 .012 Preliminary a A2 MILLIMETERS* MIN NOM MAX 14 0.65 1.10 0.85 0.90 0.95 0.05 0.10 0.15 6.25 6.38 6.50 4.30 4.40 4.50 4.90 5.00 5.10 0.50 0.60 0. 0.09 0.15 0.20 0.19 0.25 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. 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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... Is 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? DS41111D-page 32 Total Pages Sent FAX: (______) _________ - _________ N Literature Number: DS41111D Preliminary 2002 Microchip Technology Inc. ...
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... The Microchip Worldwide Site (www.microchip.com) 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. XXX Pattern Preliminary ...
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... HCS370 NOTES: DS41111D-page 34 Preliminary 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: 65-6334-8870 Fax: 65-6334-8850 Taiwan Microchip Technology Taiwan 11F-3, No. 207 ...