HCS410/P Microchip Technology, HCS410/P Datasheet
HCS410/P
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HCS410/P Summary of contents
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... On-chip tunable RC oscillator (±10%) • On-chip EEPROM • 64-bit user EEPROM in transponder mode • Battery-low LED indication • SQTP serialization quick-time programming • 8-pin PDIP/SOIC/TSSOP and die *Secure Learn patent pending. 2001 Microchip Technology Inc. HCS410 PACKAGE TYPES PDIP, SOIC ...
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... HCS410 can be programmed to give an RF transmission. • Transport Code – A 32-bit transport code needs to be given before the HCS410 can be inductively programmed. This prevents accidental programming of the HCS410. Preliminary 2001 Microchip Technology Inc. ...
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... EEPROM Array Algorithm Encoder Key Sync Counter Serial Number 2001 Microchip Technology Inc. The HCS410 has a small EEPROM array which must be loaded with several parameters before use. The most important of these values are: • A 28/32-bit serial number which is meant to be unique for every encoder • ...
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... EEPROM or an IFF challenge response. A given 16 or 32-bit challenge will produce a unique 16/32-bit response, based on the IFF key and IFF algorithm used. Challenge Received from Decoder IFF Serial Number Algorithm Preliminary Read by Decoder Response 2001 Microchip Technology Inc. ...
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... Data I 2001 Microchip Technology Inc. Figure 2-4 shows how to use the HCS410 with a 12V battery as a code hopping transmitter. The circuit uses the internal regulator, normally used for charging a capacitor/battery in LC mode, to generate a 6V supply for the HCS410. FIGURE 2-4: ...
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... Normal Code Hopping transmission Delayed seed transmission if allowed by SEED and TMPSD/Normal Code Hopping transmission Normal Code Hopping transmission Normal Code Hopping transmission Normal Code Hopping transmission Immediate seed transmission if allowed by SEED and TMPSD/Normal Code Hopping transmission Transponder mode Preliminary . DD 2001 Microchip Technology Inc. ...
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... All buttons released? No Yes (Note 1) 2001 Microchip Technology Inc. information programmed into the encoder can be used by the decoder to extend the number of unique trans- missions to more than 192K. If, during the transmit process detected that a new button(s) has been added, a reset will immediately be forced and the code word will not be completed ...
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... MSB Serial Number and + 32 bits of Encrypted Data Button Status (32 bits) Fixed Code Data Unencrypted SEED SEED + (60 bits) Preliminary bit, 4 function bits, and the LOW and 16-bit Synchronization Counter Value LSB 69 bits of Data Transmitted 69 bits of Data Transmitted 2001 Microchip Technology Inc. ...
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... Preamble 2001 Microchip Technology Inc. The same code word is continuously sent as long as the input pins are kept high with a guard time separat- ing the code words. All of the timing values are in mul- tiples of a Basic Timing Element (T changed using the baud rate option bits. ...
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... The CRC can detect all single bit and 66% of double bit errors. The CRC is computed as follows: EQUATION 2-1: CRC CALCULATION CRC and CRC CRC with CRC and Di the nth transmission bit 0 ð n ð One Code Word Time Preliminary 2001 Microchip Technology Inc. CRC ⊕ ⊕ ) ⊕ CRC ...
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... Time-out period is approximately 20 seconds. FIGURE 2-13: QUE COUNTER TIMING DIAGRAM 1st Button Press Input Sx DIO Transmission 2001 Microchip Technology Inc. 2.3 VOLTAGE LOW INDICATOR LOW The V bit is transmitted with every transmission LOW (Figure 2-8). V ...
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... V Level DD LOW LED V < LOW LEVEL 200 ms DS40158E-page 12 2.3.11 OTHER CONFIGURABLE OPTIONS Other configurable code hopping options include an • Transmission-rate selection • Extended serial number. These are described in more detail in Section 3.7. 200 ms 480 ms Preliminary 2001 Microchip Technology Inc ...
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... Activate Opcode 16-bit Data READ Activate Opcode 2001 Microchip Technology Inc. 2.4.1 IFF MODE ACTIVATION The HCS410 will enter IFF mode if the capacitor/induc- tor resonant circuit generates a voltage greater than approximately 1.0 volts on LC0. After the verified appli- cation of power and elapse of the normal reset period, the device will start responding by pulsing the DATA line (LC0/1) with pulses as shown in Figure 2-17 ...
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... OTD T 6.8 — TTD T — — WR Preliminary T WR Data 16 bits Writing Repeat 18 times for programming Preamble 0 1 Response 16/32 bits Encoder Select ACK Maximum Units µs — — — — — — — — ms — ms — 2001 Microchip Technology Inc. ...
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... Note: If the configuration word is written, the device must be reset to allow the new con- figuration settings to come into effect. 2001 Microchip Technology Inc. 2.4.6 IFF READ The decoder can read USER[0:3], SER[0:1], and the configuration word in the EEPROM. After the data has been read, the device is ready to receive a command again ...
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... Bits of User EEPROM USR1 Write acknowledge pulse 16 Bits of User EEPROM USR2 Write acknowledge pulse 16 Bits of User EEPROM USR3 Write acknowledge pulse 32-Bit Challenge 32-Bit Response 32-Bit Challenge 32-Bit Response 32-Bit Challenge 32-Bit Response 32-Bit Challenge 32-Bit Response Preliminary 2001 Microchip Technology Inc. Response ...
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... LED IFFB = 1 2s *Patents have been applied for. 2001 Microchip Technology Inc. hopping portion of the transmission. If the response is a 16-bit response, the 16 bits are duplicated to make up the 32-bit code hopping portion. The preamble, serial number, CRC, and queuing bits are all transmitted as normal (Figure 2-19) ...
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... Synchronization Counter This is the 16-bit synchronization counter value that is used to create the code hopping portion for transmis- sion. This value will be changed after every transmis- sion. The synchronization counter is not used in IFF mode. Preliminary 2001 Microchip Technology Inc ...
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... Que [1:0], CRC [1:0], SEED_3 (12 bits [2:0] LOW Note 1: For Seed Transmission, SEED_3 and SEED_2 are transmitted instead of SER_1 and SER_0, respectively. 2001 Microchip Technology Inc. 3.5 Encoder Serial Number There are 32 bits allocated for the serial number and a selectable configuration whether bits will be transmitted ...
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... Description No Seed/1 IFF Key 0 Seed Limited* 1 Always Enabled 0 IFF2/No Seed/2 1 IFF Keys boundary. e.g. If the 16 when the device 0080 giving 16 16 Description Fastest Faster Nominal Slower Slowest ) E PPM 200 µs 0 — — — — 100 µs 1 2001 Microchip Technology Inc. ...
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... MANCH: MANCHESTER CODE ENCODING MANCH selects between Manchester code modulation and PWM modulation in code hopping mode. If MANCH = 1, Manchester code modulation is selected. If MANCH is cleared, PWM modulation is selected. 2001 Microchip Technology Inc. 3.7.10 ACOLI: ANTI-COLLISION COMMUNICATION AND XPRF: TRANSPONDER ECHOING ON PWM OUTPUT ...
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... The manufacturer’s code is chosen by the sys- tem manufacturer and must be carefully controlled. The manufacturer’s code is a pivotal part of the overall system security. Seed Key Encoder Key Algorithm Preliminary HCS410 EEPROM Array Serial Number Encoder Key Sync Counter . . . 2001 Microchip Technology Inc. ...
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... Unsuccessful Serial number Encoder key Synchronization counter Exit 2001 Microchip Technology Inc. The maximum number of transmitters that can be learned is only a function of how much EEPROM memory storage is available. The decoder must also store the manufacturer’s code in order to learn an HCS410, although this value will not change in a typical system usually stored as part of the microcon- troller ROM code. Storing the manufacturer’ ...
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... TYPICAL CH MODE DECODER OPERATION Start No Transmission Received ? Yes Does No Serial Number Match ? Yes Decrypt Transmission Is No Decryption Valid ? Yes Is No Counter Within Counter No Within 32K ? Yes Save Counter in Temp Location Preliminary 2001 Microchip Technology Inc. Execute Command Yes and Update Counter ...
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... FIGURE 4-6: BASIC OPERATION OF A CODE HOPPING RECEIVER (DECODER) EEPROM Array Encoder Key Sync Counter Serial Number Manufacturer Code Button Press Information 2001 Microchip Technology Inc. FIGURE 4-5: Entire Window rotates to eliminate use of previously used codes a typical K L ...
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... IFF Response Algorithm Check for Response Match Preliminary Start Token Detected? Yes Read Serial Number Does Serial Number Match? Yes Send Challenge and Read Response Decrypt the Response Does Challenge & Match? Yes Challenge Written to HCS410 2001 Microchip Technology Inc. ...
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... V DDI LC induced output voltage V DDV Carrier frequency fc External LC Inductor value L External LC Capacitor value C Note 1: Typical values at 25° load connected inputs are clamped at 15 volts. 2001 Microchip Technology Inc. Item Rating -0.3 to 6.6 -0 0 -55 to +125 300 4000 2.0V < V < ...
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... The auto-shutoff timeout period is not tested. DS40158E-page 28 Code Word Transmission Code Code Code Word Word Word Symbol Min Typ Code 58 + Code BP Word Time Word Time Preliminary Code Word 3 n Max Unit Remarks 63 + Code ms (Note 1) Word Time 48 ms (Note (Note 3) 2001 Microchip Technology Inc. ...
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... FIX T Guard time 46 G — Total transmit time 295 Note: The timing parameters are not tested but derived from the oscillator clock. 2001 Microchip Technology Inc. T Max Min. E Temperature °C Values are for calibrated oscillator. Code Words Transmitted BSL1 = 0, ...
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... BSL1 = 1, BSL0 = 1 Min. Typ. Max. Units E µ 1 180.0 200.0 220 5.76 6.40 7. 0.72 0.80 0. 0.36 0.40 0. 11.52 12.80 14. 13.32 14.8 16. 0.36 0.40 0. 5.8 6.4 7.0 ms 37.8 42.0 46.2 ms Legend Nominal V trip point LOW 2001 Microchip Technology Inc. ...
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... NOTES: 2001 Microchip Technology Inc. Preliminary HCS410 DS40158E-page 31 ...
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... HCS410 NOTES: DS40158E-page 32 Preliminary 2001 Microchip Technology Inc. ...
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... NOTES: 2001 Microchip Technology Inc. Preliminary HCS410 DS40158E-page 33 ...
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... P = Plastic DIP (300 mil Body), 8-lead SN = Plastic SOIC (150 mil Body), 8-lead ST = TSSOP (4.4 mm Body), 8-lead Blank = 0°C to +70° –40°C to +85°C HCS410 Code Hopping Encoder HCS410T Code Hopping Encoder (Tape and Reel) Preliminary 2001 Microchip Technology Inc. ...
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... Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2001, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Microchip received QS-9000 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona in July 1999. The Company’ ...
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... Microchip. No licenses are conveyed, implicitly or otherwise, except as maybe explicitly expressed herein, under any intellec- tual property rights. The Microchip logo and name are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. All rights reserved. All other trademarks mentioned herein are the property of their respective companies. ...