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| INTEGRATED CIRCUITS DATA SHEET HTRM800 family HITAG long range reader module hardware Product specification Supersedes data of 1999 Jan 01 File under Integrated Circuits, IC11 2001 Oct 04 Philips Semiconductors Product specification HITAG long range reader module hardware CONTENTS 1 2 3 4 5 6 6.1 6.2 7 7.1 7.1.1 7.1.2 7.1.3 7.1.4 7.1.5 7.2 7.3 7.3.1 7.3.2 7.3.3 7.3.4 7.3.5 7.3.6 7.3.7 7.3.8 7.3.9 7.3.10 7.4 7.5 7.5.1 7.5.2 7.5.3 7.6 7.6.1 FEATURES APPLICATIONS GENERAL DESCRIPTION ORDERING INFORMATION BLOCK DIAGRAM PINNING ST1 connector ST2 connector FUNCTIONAL DESCRIPTION System overview Transponders Antenna Host system I/O functions Power supply Reader module software Reader module hardware Microcontroller Interface microcontroller to host Transmitting part Receiving part Digital signal processing unit Periodic disturbers Voltage regulating unit Standby mode Behaviour with HITAG 1 transponders Behaviour with HITAG 2 transponders Postal approval Operating security Anticollision mode Monitoring the supply voltage Antenna rupture and antenna short-circuit Security considerations Data privacy 8 9 10 10.1 10.2 10.3 10.4 10.5 10.5.1 10.5.2 10.5.3 10.5.4 10.5.5 10.5.6 10.5.7 10.6 11 12 13 14 HTRM800 family ELECTRICAL SPECIFICATIONS MECHANICAL SPECIFICATIONS APPLICATION INFORMATION Metallic environment and interferences Distance between two antennas External power supply Possible sources of errors by connecting the HTRM800 Building HITAG long range antennas Basics Recommended antenna cable and length Tuning of the antenna current Tuning of the antenna phase HITAG antenna tuning device Antenna malfunction indication Additional remarks Antenna arrangements SURVEY OF REFERENCED DOCUMENTS DATA SHEET STATUS DEFINITIONS DISCLAIMERS 2001 Oct 04 2 Philips Semiconductors Product specification HITAG long range reader module hardware 1 FEATURES HTRM800 family * Multi-tag operation (anticollision) * Read and write distances up to 1000 mm * Digital signal processor to reduce noise sensitivity * Communication with all HITAG transponders and various other 125 kHz transponders * Data encryption and key handling * Easy system integration * Three interface options * Meets all requirements for CE and EMI approval. 2 APPLICATIONS Inductive coupling helps you to achieve operating ranges up to 1000 mm and the use of cryptography guarantees highest data security. Anticollision mode, which is used only in long range operation, allows you to handle several transponders that are within the communication field of the antenna at the same time, thus achieving highest operating security and permitting to handle several data transfers quickly and simultaneously. In this context anticollision becomes an essential element of applications such as ski-ticketing and long range access control. With applications of that type it will always happen that several transponders arrive in the communication field of the antenna at the same time. * Universal and flexible reader module for long range systems. 3 GENERAL DESCRIPTION HITAG(1) is the name of one of the universal and powerful product lines of our 125 kHz family. The contactless read and write system that works with passive transponders is suitable for various applications. (1) HITAG - is a trademark of Philips Semiconductors Gratkorn GmbH. 4 ORDERING INFORMATION PART NUMBER NAME HITAG long range reader module RS232 HITAG long range reader module RS485 HITAG long range reader module CMOS ORDER CODE (12NC) 9352 338 40122 9352 338 50122 9352 338 60122 HTRM800/AED HTRM800/CED HTRM800/EED 2001 Oct 04 3 Philips Semiconductors Product specification HITAG long range reader module hardware 5 BLOCK DIAGRAM HTRM800 family handbook, full pagewidth 125 kHz AMPLIFIER VOLTAGE LIMITER ANT C L GND FILTER DEMODULATOR LINE DRIVER CMOSIN CMOSOUT INT1 INT2 RXD TXD +15 V IN GND -15 V IN CMOS OPTIONAL RS485 OPTIONAL RS232 DIGITAL SIGNAL PROCESSOR antenna CMIN MICROCONTROLLER CORE MODULE HTCM400 CMOUT VOLTAGE REGULATOR HTRM800 MGU417 Fig.1 Block diagram. 6 PINNING handbook, full pagewidth R72 HTRM800 ST1 10 11 ST2 2 1 20 1 ANT GND MGU418 Fig.2 Pin assignment. 2001 Oct 04 4 Philips Semiconductors Product specification HITAG long range reader module hardware 6.1 ST1 connector SYMBOL -15VIN GND +15VIN GND RXD GND CMOSIN INT1 CMIN CMOUT GND GND INT2 CMOSOUT GND TXD GND +15VIN GND -15VIN Note 1. P = power supply, O = output and I = input. 6.2 ST2 connector SYMBOL GND ANT PIN 1 2 ground antenna output and input DESCRIPTION PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 TYPE(1) P P P P I P I I/O I O P P I/O O P O P P P P DC supply voltage (-15 V) ground DC supply voltage (+15 V) ground serial interface input; RS232 level ground serial interface input; CMOS level (optional) DESCRIPTION HTRM800 family serial interface input and output 1; RS485 level (optional) core module input; general purpose core module output; general purpose ground ground serial interface input and output 2; RS485 level (optional) serial interface output; CMOS level (optional) ground serial interface output; RS232 level ground DC supply voltage (+15 V) ground DC supply voltage (-15 V) 2001 Oct 04 5 Philips Semiconductors Product specification HITAG long range reader module hardware 7 FUNCTIONAL DESCRIPTION HTRM800 family handbook, full pagewidth POWER SUPPLY antenna HOST SYSTEM HITAG 1 transponders HTRM800 I/O FUNCTIONS HITAG 2 transponder MGU419 Fig.3 System overview. 7.1 System overview 7.1.5 POWER SUPPLY The HITAG long range reader module (see Fig.3) is a part of a complete Radio Frequency Identification (RFID) system which consists of: * Transponders * Antenna * Host system * I/O functions * Power supply. The HTRM800 must be supplied from an external power supply with +15 V and -15 V (see Section 10.3). 7.2 Reader module software Software command names mentioned in this data sheet are fully described in document "HTCM400, HTRM440 Family, HTRM800 Family Interface Protocol Reader Host". 7.3 Reader module hardware MICROCONTROLLER 7.1.1 TRANSPONDERS 7.3.1 The HTRM800 can communicate with transponders based on Philips HITAG 1 and HITAG 2. 7.1.2 ANTENNA The antenna is an important part of the HITAG long range system. The antenna must provide energy and data transmission between the reader module and transponder. 7.1.3 HOST SYSTEM The microcontroller is placed on the HITAG core module (see Fig.1) and processes the protocol for the communication between the transponders and the reader module. The interface signals are converted so that the transponders are able to process them and the outgoing signals from the transponders are converted into interface-compatible signals. The second essential microcontroller function is its control function. The microcontroller activates and deactivates the transmitter and switches the receiver between the modes for the different transponders reception. Additional functions of the microcontroller are controlling the standby mode of the amplifier, detection of detuned or broken antennas (antenna malfunction) and controlling of the input and output for general purpose. The connection to the host system (e.g. microcontroller or PC) is a serial interface on RS232 level for data transmission. 7.1.4 I/O FUNCTIONS One line of the HTRM800 is wired as input from e.g. a switch and one line as output to drive a LED. 2001 Oct 04 6 Philips Semiconductors Product specification HITAG long range reader module hardware 7.3.2 INTERFACE MICROCONTROLLER TO HOST HTRM800 family reader module and transponder the located disturbers are eliminated. The command StartFFT should be executed as often as the application allows. Remarks: 1. The DSP is able to suppress up to two harmonic electromagnetic disturbances 2. During FFT is running (about 110 ms) communication with a transponder is not possible. 7.3.7 VOLTAGE REGULATING UNIT The device communicates with the host system via a serial interface using a baud rate of 9600 baud. Data transfer details are: 1 start bit, 8 data bits, 1 stop bit, no parity bit and the least significant bit is sent first. Version HTRM800/AED has an integrated RS232 level driver. Version HTRM800/CED is wired with an RS485 level driver and version HTRM800/EED is wired with a CMOS level driver. 7.3.3 TRANSMITTING PART For transmitting power and data to the transponder a 125 kHz sine signal is switched by the microcontroller and amplified. The amplifier is designed as a current source. A voltage limiter is used to clamp the output voltage of the amplifier during the decay and transient phases of the sine signal. 7.3.4 RECEIVING PART The reader module contains some filtering circuits which supply all parts of the reader module with the required voltages. Nevertheless some requirements are to be fulfilled by the external power supply. This means the maximum ripple of the supply voltages must not exceed the values specified in Chapter 8. 7.3.8 STANDBY MODE After filtering and demodulation of the amplitude modulated signal received from the transponder, the received data is converted and passed to the Digital Signal Processing (DSP) unit for further processing. 7.3.5 DIGITAL SIGNAL PROCESSING UNIT The HTRM800 offers a software controlled standby mode. This mode can be activated and deactivated by the host system. During the standby mode the amplifier is turned off and the power consumption decreases drastically. 7.3.9 BEHAVIOUR WITH HITAG 1 TRANSPONDERS The receiving part of the reader module includes bandpass filters which attenuate disturbances (3 dB attenuation at 105 and 145 kHz). For disturber frequencies near the 125 kHz (e.g. harmonics of the line frequency of PC monitors, long wave transmitters) a fourier transformation is used to recognize harmonic disturbers and to eliminate their influence. The DSP is also responsible for separating the responses of different transponders during anticollison cycles (multiple transponder operation). 7.3.6 PERIODIC DISTURBERS If several HITAG 1 transponders arrive simultaneously within the communication field of the antenna of a HTRM800, all the transponders (theoretically up to 232) within the communication field of the antenna can be read and written simultaneously. Because of the mutual influence of the transponder coils - they detune each other if there are too many too close to each other - the number of the transponders that can be operated simultaneously is limited. 7.3.10 BEHAVIOUR WITH HITAG 2 TRANSPONDERS There are a couple of possible sources for disturbances for a 125 kHz system like HITAG. The HTRM800 is designed to handle this problem and achieve optimal performance under worst conditions. Long wave transmitters, other 125 kHz systems and PC monitors are examples for periodic disturbers which can be relevant for 125 kHz systems. To eliminate these disturbers the digital signal processing unit is used. After the command StartFFT is sent to the reader module a Fast Fourier Transformation (FFT) is started to locate periodic disturbers. After about 110 ms this calculation is finished and for the following communication between 2001 Oct 04 7 If several HITAG 2 transponders arrive simultaneously within the communication field of the antenna of a HTRM800, the `stronger' transponder (the nearer one) takes over or - under special circumstances - no communication takes place. If the transponders arrive in the field one after the other, communication is established with the first one, all the other transponders are ignored. This ensures that no two (or several) HITAG 2 transponders will ever be processed (above all written to!) accidentally at the same time. By muting a selected HITAG 2 transponder (HALT mode) another HITAG 2 transponder that is to be found in the communication field of the antenna can be recognized. Philips Semiconductors Product specification HITAG long range reader module hardware 7.4 Postal approval HTRM800 family The following configuration is in compliance with the European telecommunication standards: * Reader module HTRM800 * Power supply according to the recommendations (transformer type) * Antenna: 50 x 70 cm, number of turns N = 26 and inductivity L = 1.2 mH. A survey of the passed measurements is given in Table 1. The postal approval can only be granted for final products, not just for components like the HTRM800. But this reader module is designed in a way that it is possible to get the postal approval for a system including the HTRM800. Electromagnetic emissions comply with the guidelines in FTZ 17 TR 2100, ETS 300 330 and ETS 300 683. Electromagnetic immunity complies with the guidelines in ETS 300 683. Table 1 Survey of measurements MEASUREMENT electromagnetic emission RF electromagnetic field electrostatic discharge electrical fast transient (burst) RF common mode voltage dips and interruptions surges, common and differential mode 7.5 Operating security ITEM EMI Immunity STANDARD ETS 300 330, Sep 1994 EN 55022, 1987 ENV 50140 IEC 801-2, 1991 IEC 801-4, 1988 ENV 50141 IEC 1000-4-11 IEC 1000-4-5 REQUIREMENTS FTZ 17 TR 2100 80 to 1000 MHz: 3 V/m, AM 80%, 1 kHz contact discharge: 4 kV; air discharge: 8 kV signal ports: 0.5 kV; DC power ports: 1 kV; AC power ports 2 kV current clamp injection 150 kHz to 80 MHz: 3 V (rms), AM 80%, 1 kHz reduction of 30% of UN for 10 ms, of 60% of UN for 100 ms, voltage interruption for 5 s AC power input ports: 1 kV (lines-to-ground), 0.5 V (line-to-line) RFI emission limit class The following mechanisms ensure the operation security of the HITAG system: * Anticollission mode * Monitoring the supply voltage * Antenna rupture and short circuit. 7.5.1 ANTICOLLISION MODE By muting a selected transponder (HALT mode) another transponder that is to be found in the communication field of the antenna can be recognized. 7.5.2 MONITORING THE SUPPLY VOLTAGE The supply voltage is controlled by a watch dog circuit which triggers a system reset if the supply voltage of the core module drops below 4.75 V or if the microcontroller fails. 7.5.3 ANTENNA RUPTURE AND ANTENNA SHORT-CIRCUIT Anticollision mode in long range applications permits you to process several HITAG 1 transponders simultaneously. Theoretically up to 232 HITAG 1 transponders can be processed simultaneously. In practice this number is limited, because of the mutual influence of the transponders. They detune each other, if there are too many too close to each other. In long range applications using HITAG 2 transponders, only one transponder is handled even if there are several transponders within the communication field of the antenna. In this case either no communication takes place or the `stronger' or closer transponder takes over. The HTRM800 does not get permanently damaged in case of an antenna rupture or a brief antenna short-circuit. The detection of detuned or broken antennas (antenna malfunction) is possible. 2001 Oct 04 8 Philips Semiconductors Product specification HITAG long range reader module hardware 7.6 Security considerations HTRM800 family To make use of cryptography for HITAG 2 transponders you need: * A key which is used to initialize the crypto block using HITAG 2 in crypto mode * Passwords which are used for authentication for HITAG 2 in password mode. The transponders and the HTRM800 are provided with identical transport keys and transport logdata so that you can start operating them right away (see Table 2). In order to offer our OEM clients high flexibility, the configuration of the transponder memory, password, keys and logdata can be changed. We strictly recommend to rigorously restrict these possibilities for the end customers (by setting the configuration page to read only, setting password, keys and logdata to neither read nor write). Developing the HITAG system special consideration was given to aspects of security. The following items represent the fundamental framework of the security concept: * Cryptography * Mutual authentication * Password verification * Cyclic Redundancy Check (CRC). 7.6.1 DATA PRIVACY The use of cryptography (stream cypher), mutual authentication, and password verification prevents monitoring and copying the data channel. Therefore, the area of the transponder that only can be accessed enciphered is called `secret area'. To make use of cryptography for HITAG 1 transponders you need: * Keys to be used for initializing of the crypto block * Logdata to be used for mutual authentication. Table 2 Transport values predefined by Philips. PARAMETER keyinit password keys logdata HITAG 2 keyinit password key password TAG password RWD SYSTEM HITAG 1 VALUE 0x00000000 0x00000000 0x00000000 0x00000000 0x4D494B524F4E 0xAA4854 0x4D494B52 2001 Oct 04 9 Philips Semiconductors Product specification HITAG long range reader module hardware 8 ELECTRICAL SPECIFICATIONS SYMBOL Power supply VP1 IP1 VP2 IP2 Vripple(rms) positive supply voltage positive supply current negative supply voltage negative supply current maximum amplitude of ripple on supply voltage (RMS value) operating mode standby mode fripple < 0.5 kHz fripple = 0.5 to 20 kHz fripple = 20 to 120 kHz fripple = 120 to 130 kHz fripple > 130 kHz Modulation mTX mRX modulation ratio of reader module note 1 to transponder modulation ratio of transponder to note 2 reader module - - operating mode standby mode - - - - - - - - - - - PARAMETER CONDITIONS HTRM800 family MIN. TYP. MAX. - 550 - - -400 - - - - - - - - UNIT 15 400 200 -15 -300 -100 48 7 36 12 48 V mA mA V mA mA mV mV mV mV mV 100 - % % Interface to host ft Temperature Toper Tstg Notes 1. Modulation type is Amplitude Shift Keying (ASK). A modulation ratio of 100% means the carrier is blanked completely, the information is located in the intervals between the pauses. 2. Modulation type is Amplitude Shift Keying (ASK). The modulation ratio depends on the distance between transponder and reader module. operating temperature storage temperature -25 -40 - - +70 +85 C C transmission speed - 9600 - baud 2001 Oct 04 10 This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in _white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ... 2001 Oct 04 160 3.58 43 152.86 130.4 A Dimensions in mm. 9 Philips Semiconductors HITAG long range reader module hardware MECHANICAL SPECIFICATIONS Fig.4 HTRM800 long range reader module. handbook, full pagewidth 11 92.7 88.90 100 HTRM800 family 5.56 A-A 3.50 A MGU420 Product specification Philips Semiconductors Product specification HITAG long range reader module hardware 10 APPLICATION INFORMATION 10.1 Metallic environment and interferences 10.2 HTRM800 family Distance between two antennas The communication range is impaired by metallic environment and electromagnetic interferences (e.g. monitors and keyboards). Therefore, you should keep a distance of at least one time the antenna diameter to metallic surfaces or loops as well as to electromagnetic interferences. If this is not possible, you have to take preventive measures such as using ferrites or shielding for transponder and antenna. The HTRM800 is able to suppress up to two harmonic electromagnetic disturbances. In order to be able to operate two systems side by side without negative influence on communication ranges, you must place the antennas at a minimum distance. To keep this distance low, magnetic shielding must be realized. This topic is handled in detail in application note "Antenna Design for the HITAG Long Range System". 10.3 External power supply Instead of a transformer type supply unit (see Fig.5), a switching frequency power supply unit can be used alternatively. The switching frequency must be in the range from 165 to 210 kHz (overtemperature, load and production). handbook, full pagewidth F1 STANDARD NET FILTER 800 mA (18 V) OPTIONAL VOLTAGE SELECTOR F2 D1 1N4001 800 mA (18 V) D3 D2 A F3 D4 B C MGU423 handbook, full pagewidth IN4001 72 H 3A A 2200 F (40 V) C 2200 F (40 V) B 100 nF 72 H 3A 100 nF 10 F (40 V) 7915 100 nF 10 F (18 V) 1 k -15 V MGU424 7815 100 nF 100 nF 10 F (40 V) 100 nF 10 F (18 V) 1 k +15 V GND IN4001 F1 = depends on the type of transformer. F2 = 800 mA delayed. F3 = 800 mA delayed. D1 = D2 = D3 = D4 = 4 x 1N4001. Fig.5 Transformer type power supply. 2001 Oct 04 12 Philips Semiconductors Product specification HITAG long range reader module hardware 10.4 Possible sources of errors by connecting the HTRM800 10.5 10.5.1 HTRM800 family Building HITAG long range antennas BASICS The following error list should be checked if any error (e.g. read or write distances that do not reach the specified values) occurs: * Power supply cable not mounted correctly * Power supply voltage not in the specified range * Serial interface not connected correctly * Interference received by the antenna because of an external noise source (e.g. monitor, keyboards); the remedial measure is to remove the antenna from the interfering area and use the command StartFFT * Connecting cables of the antenna changed by mistake * Antenna is mounted in metal environment; the remedial measure is to mount a non-metal space keeper between the antenna and the metal * Antenna is not designed following the antenna design instructions * Inductance of the antenna is not in the specified range * Quality factor of the antenna is not in the specified range. The exact way how to design a HITAG long range antenna is described in application note "Antenna Design for the HITAG Long Range System". The antenna is an important part of the HITAG long range system. The antenna must provide energy and data transmission between the reader module and transponder. Therefore, you should be particularly careful when implementing the antenna in order to achieve optimum results. The equivalent circuit of the antenna is shown in Fig.6. The requirements of the antenna coil are: * Quality factor: Q = 30 to 60 Xs Q = ------ where Rs Xs = effective series reactance Rs = effective series resistance * Inductance: L = 400 to 1200 H. handbook, full pagewidth coax cable VOLTAGE LIMITER Vo antenna C Rs Xs MGU421 HTRM800 Fig.6 Basics of the long range antenna. 2001 Oct 04 13 Philips Semiconductors Product specification HITAG long range reader module hardware 10.5.2 RECOMMENDED ANTENNA CABLE AND LENGTH 10.5.7 ADDITIONAL REMARKS HTRM800 family The length of the antenna cable should be limited with five meters. In case of longer cables a type with low capacitance and resistance must be used. For standard applications a 50 coaxial cable is recommended and a 75 or 95 coaxial cable for special applications. 10.5.3 TUNING OF THE ANTENNA CURRENT The following list is a summary about HITAG long range antennas: * Philips lays high emphasis on the research of antenna development * The choice of various antenna shapes (the electrical parameters) is characteristic to 125 kHz systems * The knowledge is transferred to Philips customers, in order to enable them to design and build antennas which fit best for the particular applications (antenna training) * Solutions can be found for almost every environmental scene (metal, periodic disturbers, special antenna shapes, etc.). 10.6 Antenna arrangements Potentiometer R72 (see Fig.2) is used to tune the current driven through the antenna. The default setting is 200 mA. It is not customary to change this value. However, if you want to change the current for a special application, it should be noted that Vo(peak) < 10 V. 10.5.4 TUNING OF THE ANTENNA PHASE The signal from a transponder is delayed by the decay time of the antenna. To achieve optimal performance this signal and the digital signal processing unit of the reader module must be synchronous. Thus it is necessary to store a phase information called Bit Clock Delay (BCD), which is a function of the quality factor and the inductance (reactance) of the antenna. The default setting is 7 which is suitable in most of the cases. Apart from that, the user is able to change the BCD value. The reader module includes a non volatile memory (EEPROM) to store the bit clock delay. To load the BCD value to the reader module the command SetBCD is used. 10.5.5 HITAG ANTENNA TUNING DEVICE Various arrangements are suitable for different applications (see Fig.6): * The single loop antenna is used for standard arrangements * The gate antenna is used for typical access control applications such as access control during passing through the gate * The double gate antenna is similar to the gate using two rows * The antenna multiplex system is a cost efficient application, because one reader module drives many antennas and the number of multiplexed antennas is only limited by timing restrictions. By changing the arrangement of the antenna, the total system performance and reliability can be significantly improved. As an example: building gate antennas with opposite magnetic orientation leads to a very reliable system. Especially for the HITAG product line the HITAG antenna tuning device HTOT840 was designed. This tuning device can be used for tuning long range and proximity antennas. 10.5.6 ANTENNA MALFUNCTION INDICATION If the antenna is broken or badly detuned, the antenna overload bit is set. This bit can be read by the host system via the serial interface by using the command ReadLRStatus. 2001 Oct 04 14 Philips Semiconductors Product specification HITAG long range reader module hardware HTRM800 family handbook, full pagewidth HTRM800 single loop antenna HTRM800 gate antenna HTRM800 HTRM800 double gate multiplex antenna multiplex MGU422 Fig.6 Possible arrangements of antennas. 11 SURVEY OF REFERENCED DOCUMENTS CATEGORY Data sheet Application note TITLE "HTCM400, HTRM440 Family, HTRM800 Family HITAG Interface Protocol Reader - Host" "Antenna Design for the HITAG Long Range System" 2001 Oct 04 15 Philips Semiconductors Product specification HITAG long range reader module hardware 12 DATA SHEET STATUS DATA SHEET STATUS(1) Objective data PRODUCT STATUS(2) Development DEFINITIONS HTRM800 family This data sheet contains data from the objective specification for product development. Philips Semiconductors reserves the right to change the specification in any manner without notice. This data sheet contains data from the preliminary specification. Supplementary data will be published at a later date. Philips Semiconductors reserves the right to change the specification without notice, in order to improve the design and supply the best possible product. This data sheet contains data from the product specification. Philips Semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. Changes will be communicated according to the Customer Product/Process Change Notification (CPCN) procedure SNW-SQ-650A. Preliminary data Qualification Product data Production Notes 1. Please consult the most recently issued data sheet before initiating or completing a design. 2. The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Interned at URL tap://www.semiconductors.philips.com. 13 DEFINITIONS Short-form specification The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification. 14 DISCLAIMERS Life support applications These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no licence or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. 2001 Oct 04 16 Philips Semiconductors Product specification HITAG long range reader module hardware NOTES HTRM800 family 2001 Oct 04 17 Philips Semiconductors Product specification HITAG long range reader module hardware NOTES HTRM800 family 2001 Oct 04 18 Philips Semiconductors Product specification HITAG long range reader module hardware NOTES HTRM800 family 2001 Oct 04 19 Philips Semiconductors - a worldwide company Contact information For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825 For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com. (c) Koninklijke Philips Electronics N.V. 2001 SCA73 All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. Printed in The Netherlands 613502/02/pp20 Date of release: 2001 Oct 04 Document order number: 9397 750 08331 |
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