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| INTEGRATED CIRCUITS DATA SHEET HTRM440 family HITAG proximity reader module hardware Product specification Supersedes data of 1999 Feb 01 File under Integrated Circuits, IC11 2001 Oct 04 Philips Semiconductors Product specification HITAG proximity reader module hardware CONTENTS 1 2 3 4 5 6 6.1 6.2 6.3 6.4 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 7.4 7.5 7.5.1 7.5.2 7.5.3 7.5.4 7.6 7.6.1 7.6.2 7.6.3 FEATURES APPLICATIONS GENERAL DESCRIPTION ORDERING INFORMATION BLOCK DIAGRAM PINNING Input and output pins Antenna tuning connections Interface connector Power supply connector FUNCTIONAL DESCRIPTION System overview Transponders Antenna Host system Input and output functions Power supply Reader module software Reader module hardware Core module Interface microcontroller to host Voltage regulation filtering Postal approval Security considerations Data stream between reader module and HITAG 1 transponders Data stream between reader module and HITAG 2 transponders Checking user data Data privacy Operating security Anticollision Monitoring the supply voltage Detection of antenna rupture and antenna short-circuit 11 12 13 14 8 9 10 10.1 10.2 10.3 HTRM440 family ELECTRICAL SPECIFICATIONS MECHANICAL SPECIFICATIONS APPLICATION INFORMATION Metallic environment, interferences Distance between two antennas Possible sources of errors by connecting the HTRM440 SURVEY OF REFERENCED DOCUMENTS DATA SHEET STATUS DEFINITIONS DISCLAIMERS 2001 Oct 04 2 Philips Semiconductors Product specification HITAG proximity reader module hardware 1 FEATURES HTRM440 family * Compact size * Communication with all HITAG transponders and various other 125 kHz transponders * Proximity communication distances up to 200 mm * Data encryption and key handling * Fast and easy system integration * Three interface options * Standard connectors * Simple antenna design * DC power supply from 9 to 16 V * Switches and LEDs connectable * Meets all requirements for CE and EMI approval. 2 APPLICATIONS 3 GENERAL DESCRIPTION HITAG(1) is the name of one of the universal and powerful product lines of our 125 kHz family. The contactless proximity read and write system that works with passive transponders is suitable for various applications. Inductive coupling helps you to achieve reading ranges up to 200 mm and the use of cryptography guarantees highest data security. The HTRM440 provides you with a universal, cost-effective, small and complete reader module. It enables communication with the 125 kHz transponders HITAG 1 and HITAG 2. Easy integration and application of the HTRM440 is due to small size and uncomplicated interfaces. (1) HITAG - is a trademark of Philips Semiconductors Gratkorn GmbH. * Universal and flexible reader module for proximity systems. 4 ORDERING INFORMATION PART NUMBER NAME HITAG proximity reader module RS232 HITAG proximity reader module RS422 HITAG proximity reader module RS485 ORDER CODE (12NC) 9352 338 70122 9352 338 80122 9352 338 90122 HTRM440/AIE HTRM440/BIE HTRM440/CIE 2001 Oct 04 3 Philips Semiconductors Product specification HITAG proximity reader module hardware 5 BLOCK DIAGRAM HTRM440 family handbook, full pagewidth DC POWER SUPPLY 9 to 16 V VOLTAGE REGULATION FILTERING EEPROM MEMORY R1 TRANSMITTER C I/O FUNCTIONS MICROCONTROLLER RECEIVER L R2 (1) HOST SYSTEM LINE DRIVER RS232 RS485 RS422 CORE MODULE HTCM400 antenna HTRM440 MGW269 (1) R2 has only to be used for antenna cable lengths of more than 500 mm. Fig.1 Block diagram. 6 PINNING 6.1 Input and output pins The pins for all inputs, outputs and antenna connections are shown in Fig.2. SYMBOL D1 cathode D1 anode D2 cathode D2 anode D3 cathode D3 anode SW1 a SW1 b SW2 a SW2 b RX TX1 TX2 Note 1. P = power supply pin, O = output pin, I = input pin and GND = ground supply pin. PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 TYPE(1) P O P O P O I GND I GND I O GND receiver input; this antenna signal input has to be connected to the input line of the antenna transmitter output; this antenna signal output has to be connected to the output line of the antenna antenna ground; the ground line of the antenna has to be connected to this pin these pins can be used as inputs for switch SW1 and SW2 and are internally connected to pins 17 and 18 of the HITAG core module these pins can be used to connect LED2 and LED3 which are driven by the output pins of the core module DESCRIPTION these pins can be used to connect a power LED1 2001 Oct 04 4 Philips Semiconductors Product specification HITAG proximity reader module hardware 6.2 HTRM440 family Antenna tuning connections Three spare places for antenna tuning capacitors are available on the PCB (see Fig.2). 6.3 PIN RS232 interface connector power supply connector Interface connector INTERFACE TYPE RS485 n.c. A- A+ n.c. ground n.c. i.c. i.c. n.c. RS422 n.c. A- A+ n.c. ground n.c. B+ B- n.c. 1 2 3 4 5 6 7 8 9 n.c. RxD TxD n.c. ground n.c. i.c. i.c. n.c. 1 2 3 4 5 6 7 8 9 10 handbook, halfpage 5 1 9 6 MGW310 Fig.3 D-sub interface connector. 3 places for tuning capacitors 11 12 13 6.4 Power supply connector The inner pin of the DC supply connector (see Fig.4) has to be connected to positive voltage and the outer one has to be connected to ground. The connection is fail save. MGW271 handbook, halfpage ground supply voltage MGU480 Fig.2 Pin and connector assignment. Fig.4 DC power supply connector. 2001 Oct 04 5 Philips Semiconductors Product specification HITAG proximity reader module hardware 7 7.1 FUNCTIONAL DESCRIPTION System overview HTRM440 family handbook, full pagewidth I/O FUNCTIONS POWER SUPPLY antenna HITAG 1 HOST SYSTEM HTRM440 HITAG 2 MGW270 Fig.5 System overview. The HITAG proximity reader module HTRM440 (see Fig.5) is a part of a complete Radio Frequency Identification (RFID) system: * Transponders * Antenna * Host system * I/O functions * Power supply. 7.1.1 TRANSPONDERS 7.1.2 ANTENNA Capacitor C (see Fig.1) is used for tuning the antenna. There is space reserved on the HTRM440 for tuning capacitors to tune the antenna in case there is no tuning capacitor used on the antenna itself. 7.1.3 HOST SYSTEM The HTRM440 communicates with HITAG 1 and HITAG 2 transponders. Software commands are used to switch between the different transponder modes. If several HITAG transponders arrive simultaneously within the communication field of the antenna of a HTRM440, the `stronger' transponder (the nearer one) takes over or - under special circumstances - no communication takes place. If the transponders arrive into the field one after the other, communication is established with the first one, all the other transponders are ignored. Nevertheless it is possible to mute transponders, so that several HITAG transponders can be accessed sequentially. This ensures that no two (or several) HITAG transponders will ever be processed (above all written to!) accidentally at the same time. The connection to the host system (e.g. microcontroller or PC) is a serial interface on RS232 level for data transmission (version HTRM440/AIE). Optionally wired interface drivers for CMOS (version HTRM440/BIE) and RS485 (version HTRM440/CIE) are integrated on the reader module. 7.1.4 INPUT AND OUTPUT FUNCTIONS Two lines of the HTRM440 are wired as inputs from e.g. switches and two lines as outputs to drive LEDs. On the PCB space is reserved to connect three LEDs as well as to connect e.g. two switches. 7.1.5 POWER SUPPLY The HTRM440 must be supplied by an external DC power supply (9 to 16 V). 2001 Oct 04 6 Philips Semiconductors Product specification HITAG proximity reader module hardware 7.2 Reader module software HTRM440 family Electromagnetic emissions comply with the guidelines in FTZ 17 TR 2100 and ETS 300 683 and electromagnetic immunity complies with the guidelines in ETS 300 683. 7.5 Security considerations Software commands mentioned in this data sheet are fully described in document "HTCM400, HTRM440 Family, HTRM800 Family Interface Protocol Reader - Host". 7.3 7.3.1 Reader module hardware CORE MODULE Developing the HTRM440 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). 7.5.1 DATA STREAM BETWEEN READER MODULE AND HITAG 1 TRANSPONDERS The EEPROM on the core module HTCM400 (see Fig.1) is used to store non-volatile data such as personalization data, keys, passwords, configurations and status information. The microcontroller processes the protocol for the communication between the transponders and the reader module. The interface signals are converted in such a way that HITAG 1 and HITAG 2 transponders are able to process them and the outgoing signals from the transponder are converted into interface-compatible signals. The second essential microcontroller function is its control function. The microcontroller activates and deactivates the transmitter, switches the receiver between the modes for the different transponders reception and selects the EEPROM. The transmitter receives data from the microcontroller and modulates the carrier. The receiver demodulates the received data and passes on the data to the microcontroller for further processing. 7.3.2 INTERFACE MICROCONTROLLER TO HOST All the commands and data transferred from the reader module to the transponder are secured by Cyclic Redundancy Check (CRC). This check is carried out on the transponder. Every data stream sent (commands, addresses, user data) from the proximity reader module to the transponder is first checked for data errors by the transponder by means of an integrated 8-bit CRC generator and then executed. Normally the transponder responds to each data stream from the proximity reader module with an acknowledgement signal or with a data block. The CRC is formed over commands and addresses or the plain data respectively and in case of crypto mode it is also encrypted. The generator polynomial of the transponder CRC generator reads: u8 + u4 + u3 + u2 +1 = 0x1D. The CRC pre assignment is 0xFF. Detailed instructions how to use and calculate CRC are available at Philips in the following application note "HT1 (resp. HT2) Transponder family, reliability and integrity of data transmission". 7.5.2 DATA STREAM BETWEEN READER MODULE AND HITAG 2 TRANSPONDERS The device communicates with the host (e.g. microcontroller or PC) 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. 7.3.3 VOLTAGE REGULATION FILTERING Disturbances on the supply pins may reduce the performance of the system. For that reason the supply voltage is filtered but also to limit the spurious emissions at the supply connections caused by the digital parts of the module. 7.4 Postal approval Every command sent from the reader module to the transponder is checked for data errors by the transponder. Standard commands transferred from the reader module to the transponder are divided into two bit streams. The second bit stream is generated by inverting the bits of the first bit stream. This redundancy increases data security. The postal approval can only be granted for final products, not just for modules like the HTRM440. But the reader module is designed in a way that it is possible to get the postal approval for a system including the HTRM440. 2001 Oct 04 7 Philips Semiconductors Product specification HITAG proximity reader module hardware 7.5.3 CHECKING USER DATA 7.6 Operating security HTRM440 family This check is carried out on the HTRM440. Security of the data read from the transponder by the reader module remains with the user for reasons of flexibility. Therefore, you can choose flexible check sums and store them in the transponder memory together with the data. You can protect sensitive data better than less sensitive data, thus permitting optimized operation times. 7.5.4 DATA PRIVACY The following mechanisms ensure the operating security of the HITAG system: * Anticollission mode * Monitoring the supply voltage * Detection of antenna rupture and antenna short-circuit. 7.6.1 ANTICOLLISION 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. 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 HTRM440 are provided with identical transport keys and transport logdata so that you can start operating them right away (see Table 1). 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). Table 1 Transport values predefined by Philips. PARAMETER keyinit password keys logdata HITAG 2 keyinit password key password TAG password RWD In proximity reader applications using HITAG 1 or 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. By muting a selected transponder (HALT mode) another transponder that is to be found in the communication field of the antenna can be recognised. 7.6.2 MONITORING THE SUPPLY VOLTAGE The supply voltage is controlled by a watchdog circuit which triggers a system reset if the supply voltage drops below 4.75 V or if the microcontroller fails. 7.6.3 DETECTION OF ANTENNA RUPTURE AND ANTENNA SHORT-CIRCUIT The HTRM440 does not get permanently damaged in case of an antenna rupture or a brief antenna short-circuit. SYSTEM HITAG 1 VALUE 0x00000000 0x00000000 0x00000000 0x00000000 0x4D494B524F4E 0xAA4854 0x4D494B52 2001 Oct 04 8 Philips Semiconductors Product specification HITAG proximity reader module hardware 8 ELECTRICAL SPECIFICATIONS PARAMETER CONDITION HTRM440 family SYMBOL MIN. - - TYP. MAX. UNIT External power supply VP IP mTX mRX DC supply voltage DC supply current 9 - - - 16 150 - - V mA Modulation modulation ratio of reader module Amplitude Shift Keying (ASK) to transponder modulation ratio of transponder to Amplitude Shift Keying (ASK); reader module note 1 100 - % % Interface to host ft Antenna d operating distance note 2 - -25 -40 200 - - - +85 +85 mm C C transmission speed - 9600 - baud Temperature Toper Tstg Notes 1. Modulation ratio depending on the distance between transponder and reader module. 2. Depending on antenna and type of transponder; three-wire cable, shielded. operating temperature storage temperature 2001 Oct 04 9 Philips Semiconductors Product specification HITAG proximity reader module hardware 9 MECHANICAL SPECIFICATIONS HTRM440 family handbook, full pagewidth 108.1 7.5 3.0 A 2.0 8.5 2.54 88.0 60.0 49.5 43.0 54.0 2.54 22.8 6.3 10.0 40.0 2.9 A 55.0 MGW272 43.0 20.0 60.0 A -A Dimensions in mm. Fig.6 Proximity reader module. 2001 Oct 04 10 Philips Semiconductors Product specification HITAG proximity reader module hardware 10 APPLICATION INFORMATION 10.1 Metallic environment, interferences HTRM440 family * 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 * 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 design instructions * Inductance of the antenna is too high * Quality factor of the antenna is too high (Q > 40) * Antenna current is too high * Antenna voltage is too high. 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 the antenna's 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. 10.2 Distance between two antennas 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 of four times the antenna diameter. If you place them at a closer distance be sure to use suitable shielding or synchronisation. 10.3 Possible sources of errors by connecting the HTRM440 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 * DC power supply voltage not in the specified range from 9 to 16 V * Serial interface not connected correctly 11 SURVEY OF REFERENCED DOCUMENTS CATEGORY Data sheet Application note TITLE "HTCM400, HTRM440 Family, HTRM800 Family Interface Protocol Reader - Host" "HT1 (resp. HT2) Transponder family, reliability and integrity of data transmission" 2001 Oct 04 11 Philips Semiconductors Product specification HITAG proximity reader module hardware 12 DATA SHEET STATUS DATA SHEET STATUS(1) Objective data PRODUCT STATUS(2) Development DEFINITIONS HTRM440 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 Internet at URL http://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 12 Philips Semiconductors Product specification HITAG proximity reader module hardware NOTES HTRM440 family 2001 Oct 04 13 Philips Semiconductors Product specification HITAG proximity reader module hardware NOTES HTRM440 family 2001 Oct 04 14 Philips Semiconductors Product specification HITAG proximity reader module hardware NOTES HTRM440 family 2001 Oct 04 15 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/pp16 Date of release: 2001 Oct 04 Document order number: 9397 750 08332 |
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