HCS365T-I/SM Microchip Technology, HCS365T-I/SM Datasheet

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HCS365T-I/SM

Manufacturer Part Number
HCS365T-I/SM
Description
IC CODE HOPP ENCODR 15FUNC 8SOIJ
Manufacturer
Microchip Technology
Type
Code Hopping Encoderr
Datasheets

Specifications of HCS365T-I/SM

Applications
Remote Secure Access, Keyless Entry
Mounting Type
Surface Mount
Package / Case
8-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
HCS365T-I/SM
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
HCS365T-I/SM
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
FEATURES
Security
• Two programmable 32-bit serial numbers
• Two programmable 64-bit crypt keys
• Two programmable 60-bit seed values
• Each transmission is unique
• 67/69-bit transmission code length
• 32-bit hopping code
• Crypt keys are read protected
Operating
• 2.05-5.5V operation
• Four button inputs
• 15 functions available
• Four selectable baud rates
• Selectable minimum code word completion
• Battery low signal transmitted to receiver
• Nonvolatile synchronization data
• PWM, VPWM, PPM, and Manchester modulation
• Button queue information transmitted
• Dual Encoder functionality
Other
• On-chip EEPROM
• On-chip tuned oscillator (±10% over voltage and
• Button inputs have internal pull-down resistors
• LED output
• PLL control for ASK and FSK
• Low external component count
Typical Applications
The HCS365 is ideal for Remote Keyless Entry (RKE)
applications. 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.
temperature)
K
EE
L
OQ
®
Code Hopping Encoder
Preliminary
PACKAGE TYPES
HCS365 BLOCK DIAGRAM
GENERAL DESCRIPTION
The HCS365 is a code hopping encoder designed for
secure Remote Keyless Entry (RKE) and secure
remote control systems. The HCS365 utilizes the
K
rates high security, a small package outline, and low
cost to make this device a perfect solution for unidirec-
tional authentication systems and access control sys-
tems.
The HCS365 combines a hopping code generated by a
nonlinear encryption algorithm, a serial number, and
status bits to create a secure transmission code. The
length of the transmission eliminates the threat of code
scanning and code grabbing access techniques.
EE
PDIP, SOIC
L
DATA
OQ
LED
S3/SHIFT/
®
RFEN
V
V
code hopping technology, which incorpo-
SS
DD
RESET circuit
S0
S1
S2
LED driver
Oscillator
EEPROM
3
HCS365
1
2
4
32-bit SHIFT register
S3/SHIFT S2 S
RFEN
Button input port
Controller
5
8
7
6
Encoder
1
DS41109D-page 1
S
0
Power
latching
and
switching
V
Vss
LED
DATA
DD

Related parts for HCS365T-I/SM

HCS365T-I/SM Summary of contents

Page 1

... 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 S0 S1 ...

Page 2

... 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. ...

Page 3

... EEPROM. 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’ ...

Page 4

... NOTE: Circled numbers indicate the order of execution. DS41109D-page Encryption Algorithm Button Press Serial Number Information Transmitted Information EEPROM Array 32 Bits of Manufacturer Code Encrypted Data Serial Number Sync Counter Crypt Key Decryption Algorithm Decrypted Verify Synchronization 4 Counter Counter Preliminary 32 Bits Encrypted Data 2002 Microchip Technology Inc. ...

Page 5

... Open drain output for LED V 8 Positive supply voltage DD 2002 Microchip Technology Inc. The HCS365 will normally low power SLEEP mode. When a button input is taken high, the device will wake up, start the step-up regulator, and go through the button debounce delay of T latched. In addition, the device will then read the con- figuration options ...

Page 6

... B1 B0 Tx2 Tx1 SHIFT DUAL Transmitter remote control Note functions can be implemented by pressing more than one button simulta- neously or by using a suitable diode array. Preliminary DD RF PLL D I ATA NABLE LED Tx out DATA LED Tx out DATA V SS 2002 Microchip Technology Inc. ...

Page 7

... Inputs Z IN Figure 2-2( PFET DATA I/O NFET Figure 2-2( DATA, RFEN STEP N Outputs 2002 Microchip Technology Inc. FIGURE 2-3: Sample Buttons Get Config DATA OUT No No Preliminary HCS365 BASIC FLOW DIAGRAM OF THE DEVICE OPERATION START Yes Read Seed Seed TX? ...

Page 8

... Format 4.1 PWM Manchester VPWM PPM 4 bits = 1 3.2 Enable = 1 5.5 Enable = 1 4.1 Once = 1 5.3 100 5.3 Enable = 1 3.3 Production = 1 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, 5.2 00 6.4 51.2 102.4 2002 Microchip Technology Inc. ...

Page 9

... Seed Button Code SDTM2 3E: ---- 32-- Time Before Seed Code word BSEL2 3E: --54 ---- Transmission Baud Rate Select GSEL2 3E: 76-- ---- Guard Time Select Note 1: All Timing values vary ±10%. 2: Voltage thresholds are ±150 mV. 2002 Microchip Technology Inc. (1) Description Value bits = 0 Disable = 0 Disable = 0 ...

Page 10

... DS41109D-page 10 (1) Description (1) Value bits = 0 Disable = 0 (2) 2 ASK = 0 Value (1) Value Disable = 0 Disable = 0 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 Time(s) 2.0 0.8 3.2 12.8 25.6 Enable = 1 Enable = 1 2002 Microchip Technology Inc. ...

Page 11

... 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 ...

Page 12

... DS41109D-page 12 SERIAL NUMBER BUT (28 Bits) 4 Bits SERIAL NUMBER BUT (32 Bits) 4 Bits LOW 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. ...

Page 13

... 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 ...

Page 14

... Pulse Position Modulation (PPM) LOGIC "0" LOGIC "1" 16 4-10 Encrypted Portion Fixed Code Portion xT E Header START bit bit 0 bit 1 bit Encrypted Portion Header Preliminary or 10T with Guard Time LOGIC "0" LOGIC "1" STOP bit Guard Fixed Code Portion Time 2002 Microchip Technology Inc. ...

Page 15

... 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 ...

Page 16

... If RFENO = 1, the RFEN pin will be driven high when- ever data is transmitted through the DATA pin. CODE WORD CODE WORD resistor will conserve battery power. This is an open drain output but it does have a weak pull-up capable of driving a CMOS input. ) can be LEDON DD trip point, the Preliminary 2002 Microchip Technology Inc. ...

Page 17

... The current code word is terminated when a but- ton is queued. This allows additional functionality for double or triple button presses. 2002 Microchip Technology Inc. FIGURE 5-3: SN QUEN = Disabled WAKE-UP DATA ...

Page 18

... 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. ...

Page 19

... 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 ...

Page 20

... 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. ...

Page 21

... 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 ...

Page 22

... 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 DS41109D-page 22 Kits Eval and Boards Preliminary Demo 2002 Microchip Technology Inc. ...

Page 23

... 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. ......................................................................................................... ± ).................................................................................................... ± ...

Page 24

... A 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 setting 5 = 2.25V setting 25 = 4.25V Pin at Hi- SS PIN DD impedance, no pull-downs enabled 2002 Microchip Technology Inc. ...

Page 25

... 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) ...

Page 26

... E 5.6 6.4 7.0 ms 46.1 51.2 56.3 ms 96.1 102.4 42.6 ms Preliminary BSEL = 00 (min BSEL = 01 2 BSEL = 10 2 BSEL = 11 (max) 2 WAIT = 0 WAIT = 1 LEDOS = 0 (min) or LEDOS = 1 (max) GSEL = 00 (min) 2 GSEL = 01 2 GSEL = 10 2 GSEL = 11 (max) 2 2002 Microchip Technology Inc. ...

Page 27

... 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 ...

Page 28

... B .014 .017 .020 Preliminary A2 MILLIMETERS MIN NOM MAX 8 1.27 1.78 1.97 2.03 1.75 1.88 1.98 0.05 0.13 0.25 7.62 7.95 8.26 5.11 5.28 5.38 5.13 5.21 5.33 0.51 0.64 0. 0.20 0.23 0.25 0.36 0.43 0. 2002 Microchip Technology Inc. ...

Page 29

... 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 HCS365 ...

Page 30

... 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: ® ® or Microsoft 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. ...

Page 31

... 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 ...

Page 32

... To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. . PART NO. X /XX Device Temperature Package Range Device HCS365: Code Hopping Encoder HCS365T: Code Hopping Encoder (Tape and Reel - SM only) Temperature Range - = 0×C to +70× -40×C to +85×C Package P ...

Page 33

... 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 ...

Page 34

... 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 ...

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