HCS370SL MICROCHIP [Microchip Technology], HCS370SL Datasheet
HCS370SL
Related parts for HCS370SL
HCS370SL Summary of contents
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FEATURES Security • Two programmable 32-bit serial numbers • Two programmable 64-bit encoder keys • Two programmable 60-bit seed values • Each transmission is unique • 67/69-bit transmission code length • 32-bit hopping code • Crypt ...
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HCS370 The crypt key, serial number, and configuration data are stored in an EEPROM array which is not accessible via any external connection. The EEPROM data is pro- grammable but read protected. The data can be veri- fied only after ...
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As indicated in the block diagram on page one, the HCS370 has a small EEPROM array which must be loaded with several parameters before use; most often programmed by the manufacturer at the time of produc- tion. The most important ...
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HCS370 FIGURE 1-2: BUILDING THE TRANSMITTED CODE WORD (ENCODER) EEPROM Array Crypt Key Sync Counter Serial Number FIGURE 1-3: BASIC OPERATION OF RECEIVER (DECODER) 1 Received Information Button Press Serial Number Information Check for 2 Match Perform Function Indicated by ...
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DEVICE DESCRIPTION As shown in the typical application circuits (Figure 2-1), the HCS370 is an easy device to use. It requires only the addition of buttons and RF circuitry for use as the encoder in your security application. A ...
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HCS370 If the device is in the transmit process and detects that a new button is pressed, the current code word will be aborted, a new code word will be transmitted and the time-out counter will RESET. If all the ...
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FIGURE 2-4: BASIC FLOW DIAGRAM OF 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 ...
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HCS370 3.0 EEPROM ORGANIZATION A summary of the HCS370 EEPROM organization is shown in the three tables below. The address column shows the starting address of the option, and its length or bit position. Options larger than 8 bits are ...
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TABLE 3-2: ENCODER2 OPTIONS (SHIFT = 1) Symbol Address :Bits 16 KEY2 34: 64 bits Encoder Key SEED2 2A: 60 bits Encoder Seed Value SYNC2 08: 20 bits Encoder Synchronization Counter (CNTSEL=1) 08: 18 bits Encoder Synchronization Counter (CNTSEL=0) plus ...
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HCS370 Symbol Address :Bits 16 WAKE 3F: ---- --10 Wake-up CNTSEL 3F: ---- -2-- Counter Select VLOWL 3F: ---- 3--- Low Voltage Latch Enable VLOWSEL 3F: ---4 ---- Low Voltage Trip Point Select PLLSEL 3F: --5- ---- PLL Interface Select ...
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Code Word Format code word consists of 32 bits of hopping EE OQ code data, 32 bits of fixed code data, and between bits of status information. Various code word formats are shown ...
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HCS370 FIGURE 3-2: CODE WORD DATA FORMAT (20-BIT COUNTER) With XSER=0, 20-bit Counter, QUEN=1 Fixed Code Portion (32 Bits) Status Information (5 Bits) QUE CRC V BUT LOW 2 Bits 2 Bits 1-Bit 4 Bits ...
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Seed Code Word Data Format A seed transmission transmits a code word that con- sists of 60 bits of fixed data that is stored in the EEPROM. This can be used for secure learning of encoders or whenever a ...
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HCS370 4.0 TRANSMITTED WORD 4.1 Transmission Modulation Format The HCS370 transmission is made up of several code words. Each code word contains a preamble, header, and data. A code word is separated from another code word by guard time. The ...
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FIGURE 4-3: VARIABLE PULSE WIDTH MODULATION (VPWM) VPWM BIT ENCODING 31xT 50% Preamble E FIGURE 4-4: PULSE POSITION MODULATION (PPM 31xT 50% Preamble E In addition to the Modulation Format, Guard Time, and Baud Rate, the ...
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HCS370 5.0 SPECIAL FEATURES 5.1 Internal RC Oscillator The HCS370 has an onboard RC oscillator that con- trols all the logic output timing characteristics. The oscillator frequency varies over temperature and volt- age variances, but stays within ±10% of the ...
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FIGURE 5-2: LED OPERATION LEDON LEDOFF LED V > LOW LED V < LOW LEDBL=1 LED V < LOW LEDBL=0 5.4 Step-Up Voltage Regulator To create your own step-up regulator circuit, ...
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HCS370 7.0 INTEGRATING THE HCS370 INTO A SYSTEM Use of the HCS370 in a system requires a compatible decoder. This decoder is typically a microcontroller with compatible firmware. Microchip will provide (via a license agreement) firmware routines that accept transmissions ...
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Decoder Operation Figure 7-2 summarizes normal decoder operation. The decoder waits until a transmission is received. The received serial number is compared to the EEPROM table of learned transmitters to first determine if this transmitter’s use is allowed in ...
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HCS370 FIGURE 7-3: SYNCHRONIZATION WINDOW Entire Window rotates to eliminate use of previously used codes 7.4 Security Considerations The strength of this security is based on keeping a secret inside the transmitter that can be verified by encrypted transmissions to ...
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DEVELOPMENT SUPPORT ® The K L family of devices are supported with full range of hardware and software development tools: • Integrated Development Environment ® - MPLAB IDE Software - K L Toolkit Software EE OQ ...
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HCS370 TABLE 8-1: 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 ...
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ELECTRICAL CHARACTERISTICS 9.1 Maximum Ratings* Ambient temperature under bias.............................................................................................................-40°C to +125°C Storage temperature .............................................................................................................................. -65°C to +150°C Voltage on V w/respect to V ................................................................................................................ -0.3 to +7. Voltage on LED w/respect to V ..................................................................................................................-0.3 to +11V SS ...
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HCS370 TABLE 9-1: DC CHARACTERISTICS: HCS370 DC Characteristics All Pins Except Power Supply Pins Param Sym. Characteristic No. D001 V Supply Voltage DD D003 V V start voltage to ensure POR DD internal Power-on Reset signal D004 SV V rise ...
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TABLE 9-1: DC CHARACTERISTICS: HCS370 (CONTINUED) DC Characteristics All Pins Except Power Supply Pins Param Sym. Characteristic No. Output Low Voltage D080 V Output pins OL Output High Voltage D090 V Output pins OH D091 V LED OH Internal Pull-down ...
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HCS370 TABLE 9-2: AC CHARACTERISTICS Commercial (C +70 C AMB Industrial (I - +85 C AMB Parameter Sym. Timing Element T E Power-up Time T PU PLL Set-up Time T PLL ...
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PACKAGING INFORMATION 10.1 Package Marking Information 14-Lead PDIP (300 mil) XXXXXXXXXXXXXX XXXXXXXXXXXXXX YYWWNNN 14-Lead SOIC (150 mil) XXXXXXXXXX XXXXXXXXXX YYWWNNN 14-Lead TSSOP (4.4 mm) XXXXXX YYWW NNN Legend: XX...X Customer specific information* YY Year code (last 2 digits of ...
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HCS370 10.2 Package Details 14-Lead Plastic Dual In-line (P) – 300 mil (PDIP Dimension Limits Number of Pins Pitch Top to Seating Plane Molded Package Thickness Base to Seating Plane Shoulder to Shoulder ...
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Plastic Small Outline (SL) – Narrow, 150 mil (SOIC × Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Overall Length Chamfer ...
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HCS370 14-Lead Plastic Thin Shrink Small Outline (ST) – 4.4 mm (TSSOP Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Molded Package Length ...
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ON-LINE SUPPORT Microchip provides on-line support on the Microchip World Wide Web (WWW) site. The web site is used by Microchip as a means to make files and information easily available to customers. To view the site, the user must ...
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HCS370 READER RESPONSE It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip prod- uct. If you wish to provide your comments on organization, clarity, subject matter, and ways in which ...
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HCS370 PRODUCT IDENTIFICATION SYSTEM 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 HCS370: Code Hopping Encoder HCS370T: Code ...
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HCS370 NOTES: DS41111D-page 34 Preliminary 2002 Microchip Technology Inc. ...
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Microchip’s Secure Data Products are covered by some or all of the following patents: Code hopping encoder patents issued in Europe, U.S.A., and R.S.A. — U.S.A.: 5,517,187; Europe: 0459781; R.S.A.: ZA93/4726 Secure learning patents issued in the U.S.A. and R.S.A. ...
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