HCS362T-I/ST Microchip Technology, HCS362T-I/ST Datasheet
HCS362T-I/ST
Specifications of HCS362T-I/ST
Available stocks
Related parts for HCS362T-I/ST
HCS362T-I/ST Summary of contents
Page 1
... Tunable oscillator ( 10 over specified voltage ranges • Time bits option • Queue bits • TSSOP package • Programmable Time-out and Guard Time 2002 Microchip Technology Inc. ® Code Hopping Encoder OQ PACKAGE TYPES PDIP, SOIC S3/RFEN TSSOP S3/RFEN ...
Page 2
... The HCS362, on the other hand, employs the K code hopping technology coupled with a transmission length of 66 bits to virtually eliminate the use of code ‘grabbing’ or code ‘scanning’. The high security level of Preliminary L product family facil 2002 Microchip Technology Inc. ...
Page 3
... A receiver may use any type of controller as a decoder, but it is typically a microcontroller with compatible firm- ware that allows the decoder to operate in conjunction with an HCS362 based transmitter. Section 6.0 provides detail on integrating the HCS362 into a sys- tem. 2002 Microchip Technology Inc. L technol- • A crypt key EE OQ • ...
Page 4
... NOTE: Circled numbers indicate the order of execution. DS40189D-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 Check for Synchronization 4 Match Counter Preliminary 32 Bits Encrypted Data 2002 Microchip Technology Inc. ...
Page 5
... V 5 Ground reference connection SS DATA 6 Data output pin / DATA I/O pin for Programming mode LED/ 7 Cathode connection for LED and SHIFT DUAL mode SHIFT input V 8 Positive supply voltage DD 2002 Microchip Technology Inc. FIGURE 2-1: TYPICAL CIRCUITS Two button remote control ...
Page 6
... The options provided are: - 2.0V 000 RH - 2.1V 001 - 2.2V 010 LEDH - 2.3V 011 Preliminary HCS362 NORMALIZED T VS. E TEMPERATURE T E Typical T E Temperature °C V Legend DD = 2.0V = 3.0V = 6.0V VLOW [ 0..2 ] configuration options. - 4.0V 100 - 4.2V 101 - 4.4V 110 - 4.6V 111 2002 Microchip Technology Inc. ...
Page 7
... Operation of the LED changes as well to further indicate that the battery is low and needs replacing. 2002 Microchip Technology Inc. 2.2 Dual Encoder Operation The HCS362 contains two crypt keys (possibly derived from two different Manufacturer’ ...
Page 8
... BASIC FLOW DIAGRAM OF THE DEVICE OPERATION START Sample Buttons Get Config. Seed TX? No Increment Counter Encrypt Transmit Time-out No No MTX Yes No Buttons No Seed Time No New No No Buttons Yes Preliminary Yes Read Seed Yes STOP Yes Yes Yes Seed Button No 2002 Microchip Technology Inc. ...
Page 9
... E FIGURE 3-4: TRANSMISSION FORMAT (MANCHESTER) START bit bit 0 bit 1 bit Preamble Header 2002 Microchip Technology Inc. configuration option. The Header Time can be set figuration option. There are two different modulation formats available on the HCS362 that can be set according to the Modula- tion Select (MOD) configuration option: • ...
Page 10
... V the CRC calculation and the transmis- sion. Work around: If the CRC is incorrect, recalculate for the opposite value LOW 00b’ Preliminary = CRC CRC sampled twice each being used for LOW 2002 Microchip Technology Inc. ...
Page 11
... BUT LOW 2 bits 2 bits 1-bit 4 bits With XSER = 1, CTSEL = 1 Status Information Fixed Portion (32 bits) (5 bits) QUE TIME V LOW 2 bits 2 bits 1-bit 2002 Microchip Technology Inc. SERIAL NUMBER BUT Overflow (28 bits) 4 bits Counter BUT Overflow (32 bits) 4 bits Counter SERIAL NUMBER BUT Overflow ...
Page 12
... V available when using the second LOW Encryption Key. Preliminary ’. 11 configuration bit. CTSEL 10 Time bits actually output 2.4 s LED OPERATION (LED = LEDON LEDOFF T = 800 200 ms LEDOFF LEDON information is not LOW 2002 Microchip Technology Inc. ...
Page 13
... Note: *Limited Seed 2002 Microchip Technology Inc. Seed code words can be configured as follows: • Enabled permanently. • Disabled permanently. • Enabled until the synchronization counter is greater than 7Fh, this configuration is often referred to as Limited Seed. , CRC LOW • ...
Page 14
... DS40189D-page 14 Note: When the RF Enable output feature is used and a four (or more) buttons input configu- ration is required, the use of a scheme sim- ilar to recommended. Button Release 1st CODE WORD 2nd CODE WORD Preliminary Figure 2-1 (scheme Guard Time 2002 Microchip Technology Inc. ...
Page 15
... MSB 16 Synchronization counter SYNC 17 Reserved – Set to zero RES 2002 Microchip Technology Inc. 4.1 KEY_0 - KEY_3 (64-bit Crypt Key) The 64-bit crypt key is used to create the encrypted message transmitted to the receiver. This key is calcu- lated and programmed during production using a key generation algorithm ...
Page 16
... Note: If require exceed the take priority. Preliminary in three Configuration Words: and the upper nibble of the CONFIG_1 Values 100 - 4.0V 101 - 4.2V 110 - 4.4V - 4.6V 111 ) MTX and BSEL settings in combination a transmission sequence setting, will TIMOUT TIMOUT 2002 Microchip Technology Inc. to ...
Page 17
... XSER ted disabled a 28-bit serial number and a 4- XSER bit function code are transmitted. 2002 Microchip Technology Inc. 4.5.6 TIMOUT[0..1] The transmission time-out can be set to 0.8 s, 3 time-out. After the time-out period, the encoder will stop transmission and enter a low power ...
Page 18
... Disabled (S3 same as other S inputs) Header Length = short Header standard Header encoder mod- Preliminary Values >V LOW LED blink 200/800 ms <V LOW LED not blinking >V LOW LED blink 25/500 ms V LOW LED blink once = 2002 Microchip Technology Inc. ...
Page 19
... Vlow Button (2 bits) (2 bits) (1-bit) Status MSb 2002 Microchip Technology Inc. entered, S0 must be taken LOW. The data is clocked out on DATA on every rising edge of S2. Auto-shutoff timer is not disabled in Synchronous mode. This can be used to implement RF testing. Preamble Header Encrypted Portion Serial Number ...
Page 20
... T CLKH CLKL Bit 1 Bit 2 Bit 3 Bit 14 Bit 15 Data for Word 0 (KEY_0) Repeat for each word (18 times) Data from Word 0 Bit 0 Bit 1 Bit 2 Bit 3 Bit Preliminary T WC Bit 16 Bit 17 Data for Word 1 Bit 15 Bit 16 Bit 17 Bit286 Bit287 2002 Microchip Technology Inc. ...
Page 21
... Symbol Program mode setup time Hold time 1 Hold time 2 Bulk Write time Program delay time Program cycle time Clock low time Clock high time Data setup time Data hold time Data out valid time 2002 Microchip Technology Inc. Min 4.0 ...
Page 22
... Second Valid Code Use Generated Key to Decrypt Compare Discrimination Value with Fixed Value algorithm is a Counters Sequential Learn successful Store: Serial number Encryption key Synchronization counter Preliminary TYPICAL LEARN SEQUENCE No Equal ? Yes No Equal ? Yes No ? Yes Learn Unsuccessful Exit 2002 Microchip Technology Inc. ...
Page 23
... No Is Counter No Within 32K ? Yes Save Counter in Temp Location 2002 Microchip Technology Inc. 6.3 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 24
... HCS362 FIGURE 6-3: SYNCHRONIZATION WINDOW Entire Window rotates to eliminate use of previously used codes DS40189D-page 24 Blocked Window (32K Codes) Stored Synchronization Counter Value Double Operation (resynchronization) Single Operation Window Window (32K Codes) (16 Codes) Preliminary 2002 Microchip Technology Inc. ...
Page 25
... S 0-3 Pull-down Resistance; PWM R PWM Note 1: Typical values are Auto-shutoff current specification does not include the current through the input pull-down resistors. 3: These values are characterized but not tested. 2002 Microchip Technology Inc. Item Rating -0.3 to 6.6 Input voltage -0 Output voltage -0 ...
Page 26
... These values are characterized but not tested DS40189D-page 26 Code Word Code Word Code Word (3) Symbol Min. Typical Max 23.4 25.6 28. RFON T 25 — 45 LED T — — Preliminary Code Word n Unit Remarks ms (Note 1) ms — s (Note 2) ms — ms — — — 2002 Microchip Technology Inc. ...
Page 27
... Duty Cycle Preamble E FIGURE 7-4: PWM DATA FORMAT (MOD = 0) LSB MSB LSB Bit 0 Bit 1 Bit 30 Bit 31 Bit 32 Bit 33 Bit 58 Bit 59 Header Encrypted Portion 2002 Microchip Technology Inc. 16 10xT E Encrypted Portion of Transmission Header P16 3 or 10xT Serial Number Function Code MSB ...
Page 28
... X E Preamble FIGURE 7-6: MANCHESTER PREAMBLE/HEADER FORMAT (MOD= DS40189D-page 28 bit 0 bit 2 bit 1 16 Encrypted Portion Transmission Header Preamble E Preliminary LOGIC "0" LOGIC "1" STOP bit Guard Fixed Portion Time of Transmission P16 Bit 0 Bit 1 Data Word Header Transmission 2002 Microchip Technology Inc. ...
Page 29
... Total transmit time — Data Rate Note 1: The timing parameters are not tested but derived from the oscillator clock. 2: Assuming GUARD = 10 option selected in 3: Allow for a +/- 10% tolerance on the encoder internal oscillator after calibration. 2002 Microchip Technology Inc. BSEL Value Typical Typical Typical ...
Page 30
... For PICmicro device 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. DS40189D-page 30 Example: HCS362 XXXXXNNN 0025 Example: HCS362 XXXX0025 NNN Example: Preliminary 362 0025 NNN 2002 Microchip Technology Inc. ...
Page 31
... 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 32
... Preliminary A2 MILLIMETERS MIN 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. ...
Page 33
... 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 .005” (0.127mm) per side. JEDEC Equivalent: MO-153 Drawing No. C04-086 2002 Microchip Technology Inc Units ...
Page 34
... 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 35
... 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 36
... Register on our web site (www.microchip.com/cn) to receive the most current information on our products. DS40189D-page Plastic DIP (300 mil body), 8-lead SN = Plastic SOIC (150 mil body), 8-lead ST = Plastic TSSOP (4.4mm body), 8-lead I = –40 °C to +85 °C HCS362 Code Hopping Encoder HCS362T Code Hopping Encoder (Tape and Reel) Preliminary 2002 Microchip Technology Inc. ...
Page 37
... 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 38
... 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: 65-334-8870 Fax: 65-334-8850 Taiwan Microchip Technology Taiwan 11F-3, No. 207 ...