HCS412/P Microchip Technology, HCS412/P Datasheet
HCS412/P
Specifications of HCS412/P
Related parts for HCS412/P
HCS412/P Summary of contents
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... Typical Applications • Automotive remote entry systems • Automotive alarm systems • Automotive immobilizers • Gate and garage openers • Electronic door locks (Home/Office/Hotel) • Burglar alarm systems • Proximity access control 2002 Microchip Technology Inc. HCS412 PACKAGE TYPES PDIP, SOIC ...
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... Transport code - An access code, ‘password’ known only by the manufacturer, allowing pro- gram access to certain secure device memory areas (Section 4.3.3). • AGC - Automatic Gain Control. Preliminary L prod 2002 Microchip Technology Inc. ...
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... Microchip Technology Inc. ‘grabbing’ or code ‘scanning’. The high security level of the HCS412 is based on the patented K ogy. A block cipher based on a block length of 32 bits and a key length of 64 bits is used ...
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... DS41099C-page 4 Description FIGURE 2-3: RECTIFIER AND SWITCH > IN LC0 100 S2LC OPTION 10V RFEN > OUT SWITCH 2 > INPUT LC < OUTPUT Preliminary LC0 PIN DIAGRAM V DD REGULATOR S2LC OPTION AMP LC > AND INPUT DET LC < OUTPUT 2002 Microchip Technology Inc. ...
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... IN > OE DATA > OUT 120 k FIGURE 2-6: TYPICAL APPLICATION CIRCUITS Battery-less Short Range Transponder Long Range / Proximity Activated Transponder / Encoder Short Range Transponder with RFEN Control / Long Range Encoder RFEN 2002 Microchip Technology Inc. FIGURE 2-5: LED_ON DATA LED 2 7 LC1 ...
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... If programming using 5V a device that will run at 3V, program the device to run slow at 5V such that it will run optimally at 3V). Preliminary an operating mid-point 2002 Microchip Technology Inc. ...
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... Select (VLOWSEL) configuration option. The low voltage detector result is included in encoder transmissions (VLOW) allowing the receiver to indicate when the transmitter battery is low (Figure 3-2). The HCS412 indicates a low battery condition by changing the LED operation (Figure 3-9). 2002 Microchip Technology Inc. FIGURE 2-8: Volts (V) 5 ...
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... LC0 LF antenna input pin. This form of activation is called Proximity activation as a code hopping transmission would be initiated when the device was proximate field. Refer to Section 4.4 for details on configuring the HCS412 for Proximity Activation. Preliminary Description 2002 Microchip Technology Inc. ...
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... FIGURE 3-1: CODE WORD FORMAT 50% Duty Cycle Header Preamble T P 2002 Microchip Technology Inc. Resulting Transmission X Code hopping transmission X Code hopping transmission 0 Code hopping transmission Code hopping code words until time = T 1 SEED transmissions temporarily enabled until the 7lsb’ ...
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... Bits 15 0 LSb OVR0 69 Data bits Transmitted LSb first. Synchronization Counter DISCRIM 16 Bits 10 Bits 15 0 LSb OVR0 69 Data bits Transmitted LSb first. ) then initiates a new QUE 2nd Button Press QUE1 Synch CNT = X+1 T < t < T DBR QUE 2002 Microchip Technology Inc. ...
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... Point 0 2.2V for 3V battery applications 1 4.4V for 6V battery applications 2002 Microchip Technology Inc. 3.2.4 COUNTER OVERFLOW BITS (OVR1, OVR0) The Counter Overflow Bits may be utilized to increase the synchronization counter range from the nominal 65,535 to 131,070 or 196,605. The bits must be programmed during production as ‘1’ utilized ...
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... PWM Manchester Units 31* 31* RFT RFT E 207 142 RFT RFT E milliseconds. LPRE Transmit... All code words All code words Every other code word All code words Every other code word All code word Every fourth code word 2002 Microchip Technology Inc. ...
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... Enable the Minimum Four Code Words (MTX4) configuration option to extend this feature such that a minimum of 4 code words are completed on a momentary button acti- vation. 2002 Microchip Technology Inc. 1 CODE WORD Guard Fixed Preamble Sync ...
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... All code words All code words Every other code word All code words Every other code word All code word Every fourth code word PLL INTERFACE(AFSK) Description ASK PLL Setup FSK PLL Setup . The longer preamble LPRE E 2002 Microchip Technology Inc. ...
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... Code Word DATA LED FIGURE 3-10: LONG PREAMBLE ENABLED (LPRE) First Code Word Consecutive Code Words First Code Word - Long Preamble 2002 Microchip Technology Inc. Code Word Code Word Code Word Code Word Code Word Code Word Code Word Code Word ...
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... Figure 3-12 FIGURE 3-11: LED, DATA, RFEN INTERACTION WHEN QLVS IS SET QLVS = 1, RFEN = 1 SWITCH LED LEDON AFSK = 0 (ASK) S2/RFEN/LC1 DATA AFSK = 1 (FSK) S2/RFEN/LC1 DATA FIGURE 3-12: SEED DISABLE WAVEFORM DS41099C-page 16 1200 ms Preliminary 2002 Microchip Technology Inc. ...
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... Transmit delay maximum value, if the previous transmission was successfully transmitted. 3: The auto-shutoff time-out period is not tested. 4: The LED times specified for V 5: LED on time if V < V specified TRIP 2002 Microchip Technology Inc. Symbol Min. Typ Code 58 + Code BP Word Time ...
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... T Preliminary s or 200 s ) and the modulation 200 s 100 s and E from the field E calculation method E sequence, then divide the value 2002 Microchip Technology Inc. ...
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... Transponder reader communication to the HCS412 Start or previous T bit BITC HCS412 response back to the reader Start or previous bit T BITR 2002 Microchip Technology Inc. 3LF 3LF 3LF 2LF ATO 8LF TE 8LF command is received. TE 255LF Extending the high time is acceptable but the low time should minimally ...
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... Challenge and Response using key-2 and IFF algorithm 10101 Challenge and Response using key-2 and HOP algorithm Request Hopping Code Command (Section 4.3.7) 11000 Request Hopping Code transmission Default IFF Command (Section 4.3.8) 11100 Enable default IFF communication DS41099C-page 20 Command Preliminary 2002 Microchip Technology Inc. ...
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... Communication from reader to HCS412 Communication from HCS412 to reader 28-bit Serial Number 2002 Microchip Technology Inc. Clocking out ‘1’s then increments the 3 LSb’s, the first ‘1’ setting the bits to 000b. When the value matches the 3 LSb’ token, the token responds with an The Encoder Select Acknowledge ...
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... The delay to a successful write Acknowledge will vary depending on the number of bits changed. Preliminary Response 16-bit Configuration word 16 Bits of User EEPROM USR0 16 Bits of User EEPROM USR1 16 Bits of User EEPROM USR2 16 Bits of User EEPROM USR3 16-bit Response 01b Preamble 16-bit Response 2002 Microchip Technology Inc. ...
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... PU ACK Start Communication from reader to HCS412 Communication from HCS412 to reader 2002 Microchip Technology Inc. Expected data In 28-bit Transport code; 16-Bit configuration word 28-bit Transport code; Least Significant 16 bits of the serial number (SER0) 28-bit Transport code; Most Significant 16 bits of the serial number (SER1) ...
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... START pulse and ‘01b’ TE tuning value appropriately Response Write Acknowledge pulse after each 16-bit word, 288 bits trans- mitted in 18 bursts of 16-bit words Delay before Write 16 bits Data Write ACK ACK T WR Write Delay ACK 16 Data Bits 2002 Microchip Technology Inc. ...
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... IFF using key-1 and IFF algorithm 10000 IFF using key-1 and HOP algorithm 10001 IFF using key-2 and IFF algorithm 10100 IFF using key-2 and HOP algorithm 10101 2002 Microchip Technology Inc. Write 18x16-bit words total. 3LF Delay between TE each 16-bit word 16-bit ...
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... Delay before Command Response T OTH Command Start Preliminary Delay before 32-bit Response Response T IT 01b Preamble 0 1 32-bit Response Start Response 32-Bit Hopping Code 32-bit Response 01b Preamble 0 1 32-Bit PPM Response 32-Bit PPM Field Response ACK 2002 Microchip Technology Inc. ...
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... No command received from reader for 255 LF Inductive (LF) ACK DATA (RF) LF Communication from reader to HCS412 LF Communication from HCS412 to reader 2002 Microchip Technology Inc. Default IFF communication settings: • Anticollision disabled • RF echo disabled • 200 s LF baud rate. Expected data In None Delay to ...
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... DATA line increases communication range by enabling longer range RF talk back. The information is sent on the DATA line first to benefit longer range passive-entry authentication times. (Figure 4-16, 32-Bit Response T OTH 16-Bit 16-Bit Response Response T OTH Preliminary Next 32-Bit PPM Field Response Ack 2002 Microchip Technology Inc. ...
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... Read Response Time IFF Response Time Opcode to Data Input Time Transport Code to Data Input Time Encoder Select Acknowledge Time IFF EEPROM Write Time (16 bits) Op Code to Hop Code Response Time 2002 Microchip Technology Inc. FIGURE 4-19: INTELLIGENT DAMPING Field ACK after the TE Symbol Min ...
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... FSK 1 = Enable 1 = Enable 1 = Enable Fastest Nominal Slowest 1 = 4.4 Volt 1 = Disable Active Feature None Anticollision Prox Activation RF Echo 1 = 100 Manch 1 = Enable 1 = Enable PWM Manch 400 us 800 us 200 us 400 us 100 us 200 us 100 us 200 Input — Enable 1 = Enable 1 = Enable 1 = Enable 2002 Microchip Technology Inc. ...
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... EEPROM during normal opera- tion instead of recalculating it for each transmission received. Certain learning strategies have been patented and care must be taken not to infringe. 2002 Microchip Technology Inc. FIGURE 6-1: Enter Learn Mode Wait for Reception of a Valid Code ...
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... This window excludes previously used, perhaps code-grabbed transmissions from accessing the system. Note: The synchronization method described in this section is only a typical implementation and because it is usually implemented in firmware, it can be altered to fit the needs of a particular system. Preliminary 2002 Microchip Technology Inc. ...
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... Button Press Serial Number Information Check for 2 Match Perform Function Indicated by 5 button press Note: Circled numbers indicate sequence of events. 2002 Microchip Technology Inc. Blocked Window (32K Codes) Stored Synchronization Counter Value Double Operation (resynchronization) Single Operation Window Window (32K Codes) ...
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... Data from Word 0 Bit 0 Bit 1 Bit 2 Bit 3 Bit 14 Bit Preliminary low on DATA. The ACK pulses con- HCS412 EEPROM Array Serial Number Crypt Key Sync Counter . . . Ack Ack Bit 16 Bit 17 Calibration Pulses Data for Word 1 (KEY1_1) Bit 16 Bit 17 Bit190 Bit191 2002 Microchip Technology Inc. ...
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... Clock high time T Data setup time Data hold time Data out valid time Hold time T Acknowledge low time T Acknowledge high time T 2002 Microchip Technology Inc. BITS SEED_0 / KEY2_0 (SEED AND KEY2 LSB) SEED_4 / KEY2_4 / TCODE_0 (TCODE LSB) SEED_7 / KEY2_7 / SEED_6 / KEY2_6 / TCODE_2 ...
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... V — 4.0 — — 125 kHz — 100 — mV Preliminary Units (Note) C (Note) V Conditions 6. 6. off else & 6. 6.3V 3.0V 1.5V DD LED S0/S1 not LCC < > 10V LCC 10 V < LCC < LCC DD Note 3 PP 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 .013 .017 .020 Preliminary A2 MILLIMETERS NOM MAX 8 1.27 1.35 1.55 1.75 1.32 1.42 1.55 0.10 0.18 0.25 5.79 6.02 6.20 3.71 3.91 3.99 4.80 4.90 5.00 0.25 0.38 0.51 0.48 0.62 0. 0.20 0.23 0.25 0.33 0.42 0. 2002 Microchip Technology Inc. ...
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... Standard marking consists of Microchip part number, year code, week code and traceability 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 HCS412 ...
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... Microchip's development systems software products. Plus, this line provides information on how customers can receive any currently available upgrade kits. The Hot Line Numbers are: 1-800-755-2345 for U.S. and most of Canada, and 1-480-792-7302 for the rest of the world. Preliminary 2002 Microchip Technology Inc. ...
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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? 2002 Microchip Technology Inc. Total Pages Sent FAX: (______) _________ - _________ N ...
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... Register on our web site (www.microchip.com/cn) to receive the most current information on our products. DS41099C-page Plastic DIP (300 mil body), 8-lead SN = Plastic SOIC (150 mil body), 8-lead - = 0°C to +70° –40°C to +85°C HCS412 = Code Hopping Encoder HCS412T = Code Hopping Encoder (Tape and Reel) (SN only) 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 ...