RFHCS362G-I/SO Microchip Technology, RFHCS362G-I/SO Datasheet
RFHCS362G-I/SO
Specifications of RFHCS362G-I/SO
Related parts for RFHCS362G-I/SO
RFHCS362G-I/SO Summary of contents
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... Adjustable output power: -12 dBm to +2 dBm • Differential output configurable for single or double ended loop antenna • Automatic power amplifier inhibit until PLL lock 2002 Microchip Technology Inc. rfHCS362G/362F ® Code Hopping Encoder with Pin Diagrams SOIC LED/SHIFT RFEN ...
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... Device Description ......................................................................................................................................................................... 9 3.0 Encoder Operation....................................................................................................................................................................... 13 4.0 EEPROM Memory Organization .................................................................................................................................................. 21 5.0 Programming the rfHCS362G/362F............................................................................................................................................. 27 6.0 UHF ASK/FSK Transmitter .......................................................................................................................................................... 29 7.0 Integrating the rfHCS362G/362F into the System ....................................................................................................................... 37 8.0 Development Support .................................................................................................................................................................. 41 9.0 Electrical Characteristics.............................................................................................................................................................. 43 10.0 DC Characteristics ....................................................................................................................................................................... 45 11.0 Packaging Information ................................................................................................................................................................. 51 Appendix A: Data Sheet Revision History............................................................................................................................................ 54 On-Line Support ...
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... The encoder oscillator is independent from the transmitter crystal oscillator. The rfHCS362G is capable of Amplitude Shift Keying (ASK) modulation by turning the PA on and off. The rfHCS362F is capable of ASK or Frequency Shift Key- ing (FSK) modulation by employing an internal FSK switch to pull the transmitter crystal via a second load capacitor ...
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... OQ mission length of 66 bits to virtually eliminate the use of code ‘grabbing’ or code ‘scanning’. The high security level of the rfHCS362G/362F is based on patented technology. A block cipher based on a block length of 32 bits and a key length of 64 bits is used. The algo- rithm obscures the information in such a way that even ...
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... Section 7.0 provides detail on rfHCS362G/362F into a system. FIGURE 1-2: CREATION AND STORAGE OF ENCRYPTION KEY DURING PRODUCTION Production Transmitter Programmer Serial Number Manufacturer’s Generation Code Algorithm 2002 Microchip Technology Inc ...
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... FIGURE 1-3: BUILDING THE TRANSMITTED CODE WORD (ENCODER) EEPROM Array Encryption Key Sync Counter Serial Number FIGURE 1-4: BASIC OPERATION OF RECEIVER (DECODER) 1 Received Information Button Press Serial Number Information Check for 2 Match Perform Function Indicated by 5 button press NOTE: Circled numbers indicate the order of execution. ...
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... FIGURE 1-5: ASK EXAMPLE APPLICATIONS CIRCUIT 2002 Microchip Technology Inc. rfHCS362G/362F Preliminary DS41189A-page 7 ...
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... FIGURE 1-6: FSK EXAMPLE APPLICATIONS CIRCUIT DS41189A-page 8 Preliminary 2002 Microchip Technology Inc. ...
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... Typical application circuits are shown in Figure 1-5 and Figure 1-6. The rfHCS362G/362F requires only the addition of push button switches and few external com- ponents for use as a transmitter in your security appli- cation ...
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... TABLE 2-1: rfHCS362G/362F PINOUT DESCRIPTION SOIC SSOP Name Pin # Pin # ANT1 10 11 ANT2 9 10 CLKOUT 6 7 DATA 17 19 DATA — 15 FSK FSK — 16 OUT LED/SHIFT PS/DATA 7 8 ASK RFEN S3/RFEN DDRF SSRF XTAL 14 5 Legend input output, I/O = input/output power ...
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... INTERNAL RC OSCILLATOR DATA The rfHCS362G/362F has an onboard RC oscillator that controls all the logic output timing characteristics. The oscillator frequency varies within ±10% of the nominal value (once calibrated over a voltage range of 2V – 3.5V or 3.5V – 6.3V). All the timing values specified in this document are subject to the oscillator variation ...
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... LOW VOLTAGE DETECTOR A low battery voltage detector onboard the rfHCS362G/ 362F can indicate when the operating voltage drops below a predetermined value. There are eight options available depending on the [ VLOW 0..2 options. The options provided are: - 2.0V - 4.0V 000 100 - 2 ...
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... ENCODER OPERATION The rfHCS362G/362F will wake-up upon detecting a switch closure and then delay for switch debounce (Figure 3-1). The synchronization information, fixed information and switch information will be encrypted to form the hopping code. The encrypted or hopping code portion of the transmission will change every time a button is pressed, even if the same button is pushed again ...
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... Transmission Modulation Format The rfHCS362 transmission is made up of several code words. Each code word consists of a preamble, a header and data (see Figure 3-2). The code words are separated by a Guard Time that can be set to 0 ms, 6.4 ms, 25 76.8 ms with the ...
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... DATA T TD Time One Code Word 2002 Microchip Technology Inc. rfHCS362G/362F 3.1.4.1 Low Voltage Detector Status (V The output of the low voltage detector is transmitted with each code word voltage, a logic ‘ 1 ’ will be transmitted. The output of the detector is sampled before each code word is transmit- ted ...
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... Cyclic Redundancy Check (CRC) The CRC bits are calculated on the 65 previously trans- mitted bits. The decoder can use the CRC bits to check the data integrity before processing starts. The CRC can detect all single bit errors and 66% of double bit errors ...
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... 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. rfHCS362G/362F SERIAL NUMBER BUT Overflow (28 bits) 4 bits Counter BUT Overflow (32 bits) 4 bits Counter SERIAL NUMBER BUT Overflow ...
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... Codes), but only one Serial Number, one set of Dis- crimination bits, one 16-bit Synchronization Counter and a single 60-bit Seed value. For this reason the rfHCS362G/362F can be used as an encoder in multi- ple (two) applications as far as they share the same configuration: transmission format, baud rate, header and guard settings ...
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... The button combination ( ) for transmitting a S[3210] Seed code word can be selected with the Seed and SeedC ( SEED [ 0..1 ] and SEEDC options as shown in Table 3-1 and Table 3-2: 2002 Microchip Technology Inc. rfHCS362G/362F SEED Code (60 bits) SEED TABLE 3-1: SEED CRC LOW 10 11 ...
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... However, only minimum code words will be transmitted. An alternative solution for more than three push buttons can be the switching diode circuit described in Section 1.2. In typical implementations of the rfHCS362G/362F, the encoder RFEN pin is connected to the transmitter OUT RFEN pin ...
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... EEPROM MEMORY ORGANIZATION The rfHCS362G/362F contains 288 bits (18 x 16-bit words) of EEPROM memory (Table 4-1). EEPROM array is used to store the encryption key information and synchronization descriptions of the memory array is given in the follow- ing sections. TABLE 4-1: EEPROM MEMORY MAP Word ...
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... TABLE 4-2: CONFIG_0 Bit Field Address 0 OSC_0 1 OSC_1 2 OSC_2 3 OSC_3 4 VLOW_0 5 VLOW_1 6 VLOW_2 7 BSEL_0 8 BSEL_1 9 MTX_0 10 MTX_1 11 GUARD_0 12 GUARD_1 13 TIMOUT_0 14 TIMOUT_1 15 CTSEL 4.5 Configuration Words There are 36 configuration bits stored in the EEPROM array. They are used by the device to determine trans- mission speed, format, delays and Guard times ...
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... In practice, this allows 20+ opera- tions per day for ten years before repeating the sequence. In addition, two overflow bits allow the sequence to be extended further. The feature is 2002 Microchip Technology Inc. rfHCS362G/362F Description Discrimination bits DISC [ 9:0 ...
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... XSER If XSER is enabled a 32-bit serial number is transmit- ted disabled a 28-bit serial number and a XSER 4-bit function code are transmitted. 4.5.10 SEED[0..1] The seed value which is transmitted on key combina- tions ( ) and ( ) can be disabled, enabled or 0011 1001 enabled for a limited number of transmissions deter- mined by the initial counter value ...
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... Status MSb 2002 Microchip Technology Inc. rfHCS362G/362F mission. If disabled S3 functions the same as the other S inputs. For typical implementation of the rfHCS362G/ 362F the RFEN bit = 0. 4.6 SYNCHRONOUS MODE encoder mod- In Synchronous mode, the code word can be clocked out on DATA using clock. To enter Synchro- nous mode, S2 must be taken HIGH and then DATA and are taken HIGH ...
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... NOTES: DS41189A-page 26 Preliminary 2002 Microchip Technology Inc. ...
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... PROGRAMMING THE rfHCS362G/362F When using the rfHCS362G/362F in a system, the user will have to program some parameters into the device, including the serial number and the secret key before it can be used. The programming cycle allows the user to input all 288 bits in a serial data stream, which are then stored internally in EEPROM ...
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... NOTES: DS41189A-page 28 Preliminary 2002 Microchip Technology Inc. ...
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... Locked Loop (PLL), open-collector differential-output Power Amplifier (PA), and mode control logic. External components consist of bypass capacitors, crystal, and PLL loop filter. The rfHCS362G is capable of Amplitude Shift Keying (ASK) modulation. The rfHCS362F is capable of ASK or Frequency Shift Keying (FSK) mod- ulation by employing an internal FSK switch to pull the transmitter crystal via a second load capacitor ...
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... CRYSTAL OSCILLATOR ASK OPERATION The rfHCS362G/362F crystal oscillator can be config- ured for ASK operation. Figure 6-1 shows an example ASK circuit. Capacitor C1 trims the crystal load capacitance to the desired circuit load capacitance and places the crystal on the desired frequency. TABLE 6-2: XTAL OSC APPROXIMATE FREQ ...
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... EXAMPLE FSK EXTERNAL CRYSTAL CIRCUIT XTAL X1 C2 FSKOUT C1 rfHCS362F 2002 Microchip Technology Inc. rfHCS362G/362F The frequency deviation of the transmit frequency is defined as: . MIN Layout considerations - Avoid parallel traces in order to reduce circuit stray capacitance. Keep traces as is defined as: short as possible. Isolate components to prevent cou- pling ...
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... Clock Output (CLKOUT) The crystal oscillator feeds a divide-by-four circuit that provides a clock output at the CLKOUT pin. CLKOUT is slew-rate limited in order to keep spurious signal emissions as low as possible. The voltage swing (V ) depends on the capacitive loading (C CLKOUT on the CLKOUT pin ( pF). PP Layout considerations - Shield each side of the clock output trace with ground traces to isolate the CLK- OUT signal and reduce coupling ...
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... Note 1: Standard Operating Conditions (unless otherwise stated) T 2002 Microchip Technology Inc. rfHCS362G/362F Phase Margin 2nd Order Fn (natural (not counting freq in Hz) sampling delay) 64 kHz 65 deg 103 kHz 63 deg 166 kHz ...
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... SSRF Preliminary is driven low when RFEN = 0. ASK IN ASK is low EXAMPLE ASK POWER SELECT CIRCUIT rfHCS362G/362F PS/DATA ASK To power select circuitry R2 EXAMPLE FSK POWER SELECT CIRCUIT rfHCS362G/362F PS/DATA To power ASK select circuitry R2 ASK FSK ( 4700 75K 4700 56K 4700 47K 4700 39K ...
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... For most applications the RFEN pin is connected IN directly to the RFEN pin. The RFEN OUT internal pull-down resistor. TABLE 6-7: RFEN PIN STATES IN RF Description EN 0 Transmitter and CLKOUT in Standby 1 Transmitter and CLKOUT enabled 2002 Microchip Technology Inc. rfHCS362G/362F IN IN pin has an IN Preliminary DS41189A-page 35 ...
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... NOTES: DS41189A-page 36 Preliminary 2002 Microchip Technology Inc. ...
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... INTEGRATING THE rfHCS362G/ 362F INTO THE SYSTEM Use of the rfHCS362G/362F in a system requires a compatible decoder. This decoder is typically a micro- controller with compatible firmware. Microchip will pro- vide (via a license agreement) firmware routines that accept transmissions from the rfHCS362G/362F and decrypt the hopping code portion of the data stream. ...
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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 the system. If from a learned transmitter, the transmission is decrypted ...
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... FIGURE 7-3: SYNCHRONIZATION WINDOW Entire Window rotates to eliminate use of previously used codes 2002 Microchip Technology Inc. rfHCS362G/362F Blocked Window (32K Codes) Stored Synchronization Counter Value Double Operation (resynchronization) Single Operation Window Window (32K Codes) (16 Codes) Preliminary DS41189A-page 39 ...
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... NOTES: DS41189A-page 40 Preliminary 2002 Microchip Technology Inc. ...
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... It can also decrypt K L transmitter’s hopping EE OQ code to help debug and test your decoder software. 2002 Microchip Technology Inc. rfHCS362G/362F 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 ...
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... 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 DS41189A-page 42 Kits Eval and Boards Preliminary Demo 2002 Microchip Technology Inc ...
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... This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operation listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. 2002 Microchip Technology Inc. rfHCS362G/362F ................................................................... -0 ......................................................................................................-0.3 to +7.0V pins with respect to V ...
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... NOTES: DS41189A-page 44 Preliminary 2002 Microchip Technology Inc. ...
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... OL RFEN pin high drive I RFEN LED sink current I LEDL I LEDH Pull-down Resistance; S0- 0-3 Pull-down Resistance; PWM R PWM Note 1: Typical values are 2002 Microchip Technology Inc. rfHCS362G/362F 2.0V < V < 6.3 DD (1) Min. Typ. Max. Unit — 0.3 1.2 mA — 0.1 1.0 A 0.65 V — ...
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... FIGURE 10-1: POWER-UP AND TRANSMIT TIMING LED T LED RFEN DATA T TP Code Word from previous button press S N Button Press Detect TABLE 10-2: POWER-UP AND TRANSMIT TIMING REQUIREMENTS Parameter Transmit delay from button detect Debounce delay Auto-shutoff time-out period (TIMO=10) ...
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... Data hold time Data out valid time FIGURE 10-2: 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. rfHCS362G/362F V = 5.0 ± 10% DD 25°C ± 5°C Symbol Min. Typical T 3.5 — PS ...
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... FIGURE 10-3: PWM FORMAT SUMMARY (MOD= Preamble E FIGURE 10-4: PWM PREAMBLE/HEADER FORMAT (MOD=0) P1 31xT 50% Duty Cycle Preamble E TABLE 10-4: CODE WORD TRANSMISSION TIMING PARAMETERS – PWM MODE V = +2.0V to 6.3V DD Industrial (I -40 °C to +85 °C AMB Symbol Characteristic T Basic pulse element ...
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... Data Rate Note 1: The timing parameters are not tested but derived from the oscillator clock. 2: Assuming option selected in GUARD = 10 3: Allow for a +/- 10% tolerance on the encoder internal oscillator after calibration. 2002 Microchip Technology Inc. rfHCS362G/362F Encrypted Fixed Code Portion Portion Preamble E ...
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... TABLE 10-6: TRANSMITTER DC CHARACTERISTICS* DC CHARACTERISTICS Param Sym Characteristic No. V Supply Voltage DDRF I Power-Down Current PDRF I Supply Current DDRF V Input Low Voltage ILRF V Input High Voltage IHRF I Input Leakage Current ILRF * These parameters are characterized but not tested. † Data in “Typ” column is at 3V, 25°C unless otherwise stated. These parameters are for design guidance only and are not tested ...
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... For PICmicro device marking beyond this, certain price adders apply. Please check with your Microchip Sales Office. For QTP devices, any special marking adders are included in QTP price. 2002 Microchip Technology Inc. rfHCS362G/362F Example rfHCS362G/SO 0018017 Example rfHCS362F/SS 0051017 ...
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... Plastic Small Outline (SO) - Wide, 300 mil (SOIC Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Overall Length Chamfer Distance Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top ...
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... 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: MO-150 Drawing No. C04-072 2002 Microchip Technology Inc. rfHCS362G/362F Units INCHES* ...
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... APPENDIX A: DATA SHEET REVISION HISTORY Revision A This is a new data sheet. DS41189A-page 54 Preliminary 2002 Microchip Technology Inc. ...
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... Conferences for products, Development Sys- tems, technical information and more • Listing of seminars and events 2002 Microchip Technology Inc. rfHCS362G/362F Systems Information and Upgrade Hot Line The Systems Information and Upgrade Line provides system users a listing of the latest versions of all of Microchip’ ...
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... Telephone: (_______) _________ - _________ Application (optional): Would you like a reply? Y Device: rfHCS362G/362F Questions: 1. What are the best features of this document? 2. How does this document meet your hardware and software development needs you find the organization of this data sheet easy to follow? If not, why? 4 ...
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... 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 rfHCS362G: RF Code Hopping Encoder rfHCS362F: RF Code Hopping Encoder rfHCS362GT: RF Code Hopping Encoder (Tape & Reel) rfHCS362FT: RF Code Hopping Encoder (Tape & Reel) Temperature Range I = -40 C to+85 C Package SO = 300 mil SOIC SS ...
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... RFHCS362G/362F NOTES: DS41189A-page 58 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 ...