FCC ID: UOEME-M23 ME-MR23

Reader/Writer Module for Coil-on-Chip RFID System ME-MR23(RS232C I/F) Issued on October 2008 Maxell Seiki, Ltd. Coil-on-Chip RFID ME-MR23 Contents 1 Applicability.........................................................................................................................2 2 Outline of Product...............................................................................................................2 2.1 Outline of ME-MR23 ........................................................................................................2 2.2 Module Configuration.......................................................................................................2 3 Outer Dimension.................................................................................................................3 3.1 Outer Dimension Diagram of Reader/Writer Module .......................................................3 3.1.1 Reader/Writer Module .............................................................................................................. 3 3.1.2 Component Layout of Reader/Writer Module .......................................................................... 4 3.2 Outer Dimension Drawing of Antenna .............................................................................5 3.3 Appearance of Exclusive Antenna Cable.........................................................................6 3.4 Positioning of Card ..........................................................................................................6 3.5 Restriction of Metallic Parts .............................................................................................7 4 Marking...............................................................................................................................7 5 Specifications of Reader/Writer Module..............................................................................8 5.1 Environmental Characteristics .........................................................................................8 5.2 Physical Specification ......................................................................................................8 5.2.1 Main board (1 piece)................................................................................................................... 8 5.2.2 Antenna board (4 pcs.) ............................................................................................................... 8 5.3 Electrical Characteristics .................................................................................................8 5.3.1 Absolute maximum rating......................................................................................................... 8 5.3.2 Electrical Characteristics.......................................................................................................... 8 5.3.3 Electrical Performance ............................................................................................................. 9 5.4 Interface Specification......................................................................................................9 5.4.1 Location of host connector terminal (CN101: PH-5pin) ........................................................... 9 5.4.2 Location of antenna connector terminal (CN211 to CN241: PH-2pin) ................................... 10 5.4.3 Location of external power supply connector terminal (CN102: PH-2pin)............................. 10 5.5 RXD / TXD Transmission Specification..........................................................................10 6 Description of Operation................................................................................................... 11 6.1 Transmission Protocol ................................................................................................... 11 6.2 Command ......................................................................................................................12 6.2.1 Parameter of Analog Characteristic ....................................................................................... 14 6.2.2 RESET command................................................................................................................... 14 6.3 Response.......................................................................................................................15 7 Example of Steps of Giving Commands ...........................................................................16 8 Precautions Before Use....................................................................................................17 9 Precautions for Handling ..................................................................................................17 10 Cautions for Use.............................................................................................................17 MAXELL SEIKI CONFIDENTIAL 1 Coil-on-Chip RFID ME-MR23 1 Applicability ME-MR23 This specification applies to Reader/Writer Module for RFID, ME-MR23, which is delivered to Sega Corporation (Party A) from Maxell Seiki Ltd. (Party B) via Kaga Devices Co., Ltd. 2 Outline of Product 2.1 Outline of ME-MR23 The ME-MR23 is Reader/Writer Module for RFID, which transmits data to host computer via RS232C I/F (RS232C signal level I/F). It is intended to be connected with equipment prepared by Party A. Its antenna is external type and connected via exclusive extension cable. Circuit block configuration of the ME-MR23 Module is shown below. Main Module Regulator

+9V Antenna Module Card Power 12V

+12V Regulator

+5V RS232C Host PC TX RX Controller IC Transceiver IC RS232C Converting IC 6MHz 13.56MHz Detect-

or r o t c e l e S Fig. 2-1 Circuit Block Diagram of ME-MR23 2.2 Module Configuration Configuration of ME-MR23 Module is shown below.

(1) Main Module 1 piece

(2) Antenna Module 4 pieces

(3) Antenna Cable 4 pieces (with ferrite core) Tag IC Tag IC Tag IC Tag IC 2 MAXELL SEIKI CONFIDENTIAL Coil-on-Chip RFID ME-MR23 3 Outer Dimension 3.1 Outer Dimension Diagram of Reader/Writer Module 3.1.1 Reader/Writer Module Outer dimension of ME-MR23 Module is as shown in the drawing below. Refer to the following table for type number of housings matching connectors CN101, CN102, CN211 to CN241. 100.01.0 CN211 CN221 CN231 CN241 Unit: mm TOP CN102 CN101 BOTTOM 5 0

. 0 1

. 0 M a x 1 4

. 5 3-1-1 Outer Dimension Drawing of Reader/Writer Module Module Dimension: 100mm 50mm 14mm (standard value) Board Dimension: 100mm 50mm 1.2mm thick (standard value) Dimension of Mounting Hole: 3.2mm 4 Connector No. CN101 CN102,CN211,CN221,CN231,CN241 Equipped connector

(post) Side entry type S5B-PH-SM4-TB S2B-PH-SM4-TB Matching plug Housing PHR-5 PHR-2 MAXELL SEIKI CONFIDENTIAL 3 Coil-on-Chip RFID ME-MR23 3.1.2 Component Layout of Reader/Writer Module Antenna Connector PH 2P CN211 CN221 CN231 CN241

(5) Unit: mm TOP

(

5

) 4 0

. 0 0

. 2 Power connector PH 2P CN102 90.00.2 CN101 Host connector PH 5P Control IC MP1 Transceiver IC BOTTOM M a x 1

. 3 Fig. 3-1-2 Component Layout of Reader/Writer Module MAXELL SEIKI CONFIDENTIAL 4 Coil-on-Chip RFID ME-MR23 3.2 Outer Dimension Drawing of Antenna Outer dimension drawing of ME-MS01M-B-ANT is shown below. 7 0

. 0 0

. 5 39.00.3 Unit: mm 6 0

. 0 0

. 5

(

1 0

) M a x 1 0

. 0 CN401

(9.5) 29.50.2 Antenna Connector PH 2P Fig. 3-2 Outer Dimension Drawing of Standard Antenna Module Dimension: 70mm 39mm 8mm (standard value) Board Dimension: 70mm 39mm 1.2mm thick (standard value) Mounting Hole Dimension: 3.2mm 5 MAXELL SEIKI CONFIDENTIAL 5 Coil-on-Chip RFID ME-MR23 3.3 Appearance of Exclusive Antenna Cable Appearance of exclusive antenna cable is shown below.

: 500 mm (standard value) Cable length Connector housing: For PH-2pin Ferrite core

: TDK ZCAT1325-0530A 1 turn 100 to 130mm Reader/Writer side 50015mm Antenna side Fig. 3-3 Appearance of Exclusive Antenna Cable 3.4 Positioning of Card The card and antenna board shall be so positioned that the distance between the end of card and that of antenna board is 20 mm in longitudinal direction, and that the card and the board are centered in horizontal direction. 20mm Card Antenna board Booster coil

(inside the card) Fig. 3-4 Positioning of Card MAXELL SEIKI CONFIDENTIAL 6 Coil-on-Chip RFID ME-MR23 3.5 Restriction of Metallic Parts Do not place metallic parts (magnetic materials) within the range of 20 mm from the end of antenna board in horizontal direction, and within the range of 40 mm radius from the center of antenna board in longitudinal direction (except for small metallic parts such as mounting screws) 20 mm 40 mm Restriction in horizontal direction Fig. 3-5 Restriction of Metallic Parts Peripheral to Antenna Restriction in longitudinal direction 4 Marking Marking of nameplate shall be as shown below. Reader Writer ME-MR23M4-A-SG MIC/KS EC-08009 Serial No. Lot No. Manufactured by Maxell Seiki, Ltd. SEGA CORPORATION Color: White Outer Dimension: 25.0 mm 85.0 mm Contents of Printed Characters Serial No.: Indicated in six digits Lot No.: Indicated in four digits First digit: the last one digit of the year of manufacture in the Christian era Second digit: month of manufacture (October: X, November: Y, December: Z) Third and fourth digits: two digits of date of manufacture Indication of type designated by Ministry of Internal Affairs & Transmissions: No. EC-08009 MAXELL SEIKI CONFIDENTIAL 7 Coil-on-Chip RFID ME-MR23 5 Specifications of Reader/Writer Module 5.1 Environmental Characteristics Item No 1 Operating temperature 2 Operating humidity 3 Storage temperature 4 Storage humidity Specification 0 to 45 20 to 80%RH (without condensation)

-10 to 60 20 to 80%RH (without condensation) 5.2 Physical Specification 5.2.1 Main board (1 piece) No. 1 2 3 Item Outer dimension Material of board Weight 5.2.2 Antenna board (4 pcs.) Item Outer dimension Material of board Weight No. 1 2 3 Specification 100mm (D) 50mm (W)14mm (H max) Glass epoxy FR-4 t = 1.2mm 4-layer 45g20% 1 piece (with shield) Specification 70mm (D) 39mm (W) 10mm (H max) Glass epoxy FR-4 t = 1.2mm 2-layer 7g20% 4 pieces 5.3 Electrical Characteristics 5.3.1 Absolute maximum rating Symbol VCC VI VO Parameter VCC terminal RXD terminal TXD terminal 5.3.2 Electrical Characteristics Rating

-0.3 to 20 13 13 Unit V V V

(VCC = 12V, GND = 0V, Ta = 0 to 45, unless otherwise specified) Symbol Parameter VCC VOH VOL VIH VIL Rin Power (12V) TXD H output voltage (load 3k) TXD L output voltage (load 3k) RXD H input voltage RXD L input voltage RXD input resistor Range Std. 12.0 5.4

-5.4 5.4

-5.4 5 Min. 11.0 4.5 2.4 13.0 3 Max. 13.0

-4.5 13.0 0.8 7 Unit V V V V V k MAXELL SEIKI CONFIDENTIAL 8 Coil-on-Chip RFID ME-MR23 5.3.3 Electrical Performance Item Supply voltage Consumed current Carrier frequency Data rate Quality of transmission can Number of antenna which be connected Antenna method switching Setting of circuit parameters receiving Standard 12.01.0V 1) Max. 200mA 2) Max. 40mA

(Operation status: main condition is carrier ON)

(Idle status: main condition is carrier OFF) 13.56MHz15ppm or less 26.48kbps Transmission distance Min. 3.0mm to Max. 5.0mm (in case of one/two IC card(s))

(from surface of coil on antenna board to surface of card) Allowed horizontal displacement Longitudinal direction (longer side) 3.0mm /

horizontal direction (short side) 1.0mm Number of card for which transmission is available with one antenna) Two cards at maximum (to be inserted in the arrowed direction of card design) 1) During transmission, amp gain shall be set at most suitable value at host 2) Do not place metallic or magnetic materials around the antenna. computer. Four antennas Host command method, carrier output for one antenna only

(refer to 6.1 for details) Register setting by command Slice level setting: four steps Amp gain setting: 16 steps

(refer to 6.1.1 for details) Percentage of ON: 50% or less Percentage of carrier ON/OFF Wait time until transmission

* The above values are just for reference, not guaranteed values. They may vary depending on system operating environment. Evaluate in actual system environment and adjust transmission distance, gain setting, and horizontal displacement, etc. to ensure reliable transmission. 50ms after power on 5.4 Interface Specification 5.4.1 Location of host connector terminal (CN101: PH-5pin) Terminal Name of terminal Input/output Function 1 2 3 4 5 TXD GND RXD GND GNDS Output

-

Input

-

-

Transmitted data signal GND(0V) Received data signal GND(0V) GND for shield MAXELL SEIKI CONFIDENTIAL 9 Coil-on-Chip RFID ME-MR23 5.4.2 Location of antenna connector terminal (CN211 to CN241: PH-2pin) Terminal Name of terminal Function Remark 1 2 SIGNAL VANT Analog signal Power to antenna Core wire side Cable shield side 5.4.3 Location of external power supply connector terminal (CN102: PH-2pin) Terminal Remark Name of terminal Function 1 2 VCC GND Power terminal+12V GND0V 5.5 RXD / TXD Transmission Specification Item Transmission speed (actual speed*1) Transmission method Synchronization method Flow control Start bit rate Data rate Stop bit rate Parity bit rate Specification 19,200 bps18,750 bps2 38,400 bps37,500 bps RS232C semi-double No synchronization None 1-bit 8-bit 1-bit 1-bit/even number 1 Controller incorporated in this module employs 6MHz oscillator. Because transmission speed is generated by its frequency-dividing, actual speed in this module is the value in parenthesis. 2 When supplying power (system reset), transmission speed is 19,200bps. RXD / TXD data format 1ST-8DATA-1PAR-1SP RXD or TXD ST LSB MSB PAR SP ST STart bit LSB Least Significant Bit MSB Most Significant Bit PAR PARity bit SP StoP bit Fig. 5-5 Data Format MAXELL SEIKI CONFIDENTIAL 10 Coil-on-Chip RFID ME-MR23 6 Description of Operation 6.1 Transmission Protocol Image of transmission protocol between host computer, Reader/Writer Module, and RFID chip is shown in Figure 6-1. Reader/Writer Module receives command and data from the host computer and transmits them to RFID chip. It also receives response and data from RFID chip, and judges whether transmission is completed or not, and then transmits the results to the host computer, Host Reader/Writer module RFID chip B: Monitoring (timeout judgment)3 A Issue of command Response processed Transmission of command/

data Receipt of response/

data Command processed, response processed Fig. 6-1 Image of Transmission Protocol 3 Keep the time shown in Table B as timeout own time at minimum

(take margins into consideration for design). Table A: List of receiving timeout times of multiple bytes command Table B. List of theoretical timeout values from transmission of command to receipt of response Command Frame configuration Byte number Timeout time ms Command Timeout timems COUNT CHANGE TEST COUNT+CT_NUM CHANGE+BAUDRATE TEST+TEST_CODE TEST+RF_OFF WRITE+DATA 2 3 5.0 8.8 5 15.3 WRITE WRITE_NOP WRITE_NOP+DATA WRITE_ST WRITE_ST+DATA HALT SEL Because reader/writer module is not set for timer between characters, complete transmission of designated byte rate within the timeout time indicated in Table A. HALT+UID SEL+UID+KEY Take an interval of more than 5ms between completion of receipt of response and start of next command transmission, 28.6 9 REQ SEL READ WRITE WRITE_NOP WRITE_ST HALT COUNT TEST TEST(RF_OFF) RESET 120 45 80 100 40 100 40 60 5 5 5 MAXELL SEIKI CONFIDENTIAL 11 Coil-on-Chip RFID ME-MR23 6.2 Command Command frames from host computer to Reader/Writer Module and description of them are shown below. TC1 TC2 TC3 TC4 bit7 1B LSB REQ bit7 1B LSB SEL 4B UID bit7 1B LSB READ bit7 1B LSB WRITE TC5 bit7 1B LSB WRITE_NOP TC6 bit7 1B LSB WRITE_ST TC7 bit7 1B LSB HALT 4B DATA 4B DATA 4B DATA 4B UID bit7 1B LSB bit7 1B LSB TC8 COUNT CT_NUM TC9 bit7 1B LSB RESET 4B KEY 4 4 4 bit7 1B LSB 2B TC10 TEST TEST_CODE bit7 1B LSB TEST 2B RF_OFF B : Byte

*4: Writing to RFID chip is done by WRITE command only. WRITE_NOP and WRITE_ST execute movement of write pointer only, but DUMMY DATA (4-Byte) is required. When processing multiple byte data (ex. UID, TEST_CODE) for data transmission, take the following steps. Transmit upstream byte by LSB First. Transmit next byte by LSB First. MSB with the lowest byte is the last transmission. 12 MAXELL SEIKI CONFIDENTIAL Coil-on-Chip RFID ME-MR23 Command CodeHex Description of Functions Command to Reader/Writer Module REQ SEL UID KEY READ WRITE DATA WRITE_NOP WRITE_ST HALT COUNT CT_NUM RESET TEST 4E Requesting communication with RFID chip. However in case of REQ command with carrier OFF, no response from RFID chip, because it serves as a command requesting carrier ON transfer to operation status. 2E Selecting a specific RFID chip. Existing 4-byte Unique ID of RFID chip. It is already written at factory and cannot be changed. Random 4-byte Key of RFID chip (code). Checking KEY against SEL command, and executing access restriction depending on match or mismatch. 0E CE Random 4-byte 8E EE AE 6E 03 0C 30 C0 7E 5E Reading memory of RFID chip (128-byte collectively) Increasing write pointer of RFID chip with an increment (+1) and write to memory (4-byte unit). Data to be written. It may be invalid depending on access restriction, but 4-byte data is required Increasing write pointer of RFID chip with increment (+1). Actual writing is not executed. But dummy data (4-byte) at transmission of command is required. Returning write pointer of memory to zero (position of Serial No.0). Writing to RFID chip is not executed. But data at transmission of command (4-byte, dummy) is required. Halting a specific RFID chip. Decreasing down counter of RFID chip with decrement -1. Specifying counter for decrement. Select one CT_NUM code corresponding any of Counter 1 to 4. Counter1: 03h, Counter2: 0Ch, Counter3: 30h, Counter4: C0h Initializing controller. Setting parameters of analog characteristics of transceiver/antenna selection. Transmission of carrier from module is checked by TEST command (TEST_CODE:00**). If the response is NOT (6Ah), the carrier is not transmitted. Parameter of antenna selection. Shifting antenna to be activated with lower 1-byte (** mentioned on the left. TEST_CODE F0**

2Byte 01h: select antenna to be connected with CN211 02h: select antenna to be connected with CN221 03h: select antenna to be connected with CN231 04h: select antenna to be connected with CN241 00**

2Byte 80**

2Byte Parameter of receiving gain characteristic of transceiver. Shifting receiving gain with lower 1-byte (** mentioned on the left). Stopping carrier by TESTRF_OFF Lower 1-byte (** mentioned on the left) is at random. RF_OFF MAXELL SEIKI CONFIDENTIAL 13 Coil-on-Chip RFID ME-MR23 6.2.1 Parameter of Analog Characteristic Most suitable parameter of analog characteristic depends on transmission characteristic of each RFID chip and positional relationship between antenna coil on Reader/Writer Module and RFID chip. Estimate gain setting with least transmission error and set it as default value. When accessing other RFID chip or repositioning (including insertion and withdrawal), optimize the parameter of analog characteristic to match with the receiving characteristic from RFID chip. When transmission errors occurs and transmission is not possible despite of retrying, provide software processing to shifting set gain values up and down automatically. We recommend you should shift the set gain values above and below the default value, taking operating environment

(supply voltage, ambient temperature), dispersion of transmission distance, dispersion of transmission performance of RFID chip into consideration. Recommended setting for evaluation Default 29 2A 28 2B 27 2C 26 return to default value

(retry for a few times at each gain) Set gain values of receiving amplifier are shown below. Set values of receiving amp gain Parameter of analog characteristic 0020h 0021h 0022h 0023h 0024h 0025h 0026h 0027h Amp gain 17 dB 19 dB 21 dB 23 dB 25 dB 27 dB 29 dB 31 dB Parameter of analog characteristic 0028h 0029h 002Ah 002Bh 002Ch 002Dh 002Eh 002Fh Amp gain 33 dB 35 dB 37 dB 39 dB 41 dB 43 dB 45 dB 47 dB 6.2.2 RESET command It is possible to issue RESET command even in case of sequence of executing other command. However, because all the transmission sequences are interrupted to respond to RESET command, we cannot guarantee internal operation, depending on the transmission sequence being executed. Therefore, issue RESET command after a considerable time elapsed since completion of the previous command transmission sequence. We recommend that you should issue RESET command only in case of trouble, for example, when response is not returned as a result of waiting response from Reader/Writer Module. You cannot do 40-second timer deactivation by RESET command after 40-second timeout

(impossible to communicate with RFID chip). External reset or turning power off and on is required. MAXELL SEIKI CONFIDENTIAL 14 Coil-on-Chip RFID ME-MR23 6.3 Response Responses returned from Reader/Writer Module to host computer are shown below. RC1 RC2 RC3 RC4 RC5 RC6 RC7 bit7 1B LSB OK bit7 1B LSB RETRY bit7 1B LSB NG bit7 1B LSB OK 4B UID bit7 1B LSB OK 128B DATA bit7 1B LSB bit7 1B LSB OK VALUE bit7 1B LSB NOT B : Byte When processing multiple byte data (ex. UID, TEST_CODE) for data transmission, take the following steps. Transmit upstream byte by LSB First. Transmit next byte by LSB First. MSB with the lowest byte is the last transmission. Response to Host Computer Response CodeHex Description of Function OK RETRY NG UID DATA VALUE 0A CA 3A Response in case transmission is successful. Response is given when any of ATQ, ATQ_C, and ACK is received without transmission error or in case of processing command by controller. Response requesting retry to send command when transmission error occurs. Response in case /DETECT of Reader/Writer Module equals to 1. In case of /DETECT = 1, the Reader/Writer Module decides there is no RFID to communicate with and does not communicate with RFID chip. Prearranged

(4-byte) Unique ID of RFID chip. Random

(128-byte) Data of RFID chip. If condition of access to memory is set in advance, the data is that after masking (the masking part is 0). Random

(1-byte) Counter value after decrease of down counter of RFID chip with decrement

(-1). NOT 6A Response in case carrier is not transmitted from the module when giving TEST command TEST_CODE:00**. Transmission of carrier from the module is checked by TEST command. MAXELL SEIKI CONFIDENTIAL 15 Coil-on-Chip RFID ME-MR23 processing the write pointer Response from reader/writer Command issued by host computer and TEST check of carrier, existence of RFID chip REQ carrier ON NOT carrier OFF, RFID chip exists RETRY in normal case, carrier ON OK OK OK OK check of memory contents TEST Gain setting REQ transmission command SEL READ WRITE_ST (set standard position) WRITE_NOP (moving write pointer

* For this example, WRITE_NOP by 4 times 7 Example of Steps of Giving Commands Example of giving commands for writing to DATA (data area) to RFID card is shown below. Condition: Most suitable parameter of receiving gain characteristic is checked in advance and transmitted after reset. OK check of memory contents OK OK OK RETRY (transmission error occurs) OK (end of expected processing) OK WRITE (actual writing) READ recheck of data is required when writing WRITE_ST (returning write pointer) WRITE_NOP moving write pointer

* For this example, WRITE_NOP WRITE (writing data again) READ READ (simple retry when reading) TEST+RF_OFF carrier OFF All processes completed OK OK RETRY (transmission error occurs) by 4 times to MAXELL SEIKI CONFIDENTIAL 16 Coil-on-Chip RFID ME-MR23 8 Precautions Before Use This Reader/Writer Module itself may not meet EMI Electromagnetic Interference standard. Give consideration to conformity of the system to EMC standard as required for intended use and destination of your system. Do not place metallic parts between Reader/Writer Module and RFID chip. Keep antenna away from conductive objects such as metallic frame. If such object is close to antenna, it may impair transmission characteristic. 9 Precautions for Handling This Reader/Writer Module is precision apparatus. Do not disassemble or modify it. Otherwise, it may cause malfunction, failure, fire, or electric shock. Before handling the module, discharge electrostatic charge from your body. Do not drop, strike, bend, or give impact on the module. Do not touch with wet hand. Otherwise, it will cause failure. This module employs metallic shield plate. When you handle the module, do not touch its edge. The edge is sharp and your finger may get a cut. Use exclusive card compatible with this module only. Do not insert any object such as iron plate or coin. Otherwise, it may cause failure. Never remove cables during access to the card. Otherwise, it may cause collapse of data in the card or the card itself. Do not touch or remove the card during access to the card. Otherwise, it may cause collapse of data in the card or the card itself. 10 Cautions for Use When required transmission is completed, stop the carrier. If carrier output continues, RFID chip may generate heat. For safety, the Reader/Writer Module automatically stops carrier in about 40 seconds after the start of carrier output. If you turn off the power and turn it on again, the module is recovered. For safety, provide the host computer with power protection against overcurrent due to short-circuit of components in this module, etc. Be sure to carry out Read Verify check after writing. When retrying because of transmission error, readjust receiving amp gain. Do not use this module with reversed combination of antenna board and Reader/Writer board. Otherwise, it may impair transmission performance (excluding cables). Turn off the power before removing or inserting the card. Otherwise, it may cause failure. Do not bend this module at its portion close to the housing of antenna cable. Otherwise, it may cause breakage of conductor. Insert the card in the arrowed direction in such a manner that the face is visible. If the direction is wrong, transmission error may occur. In such case, insert it in correct direction. MAXELL SEIKI CONFIDENTIAL 17 Coil-on-Chip RFID ME-MR23 Request with regard to safety design We make our best efforts to improve quality and reliability of our products. Nevertheless, semiconductor products may have trouble or malfunction. We request you to give enough consideration to safety design of your system, such as redundant design, anti-spreading-fire design, malfunction preventing design, to avoid injury, fire, social damage, etc. resulting from failure or malfunction of our semiconductor products. This Reader/Writer Module is designed for use in general electronic equipment (office use, telecommunications, measuring, household, etc.), but not designed and manufactured for use in equipment or system used in serious condition affecting peoples lives. If you consider use of this module for equipment or system for special applications such as transportation, vehicular, medical, aerospace, nuclear control, or undersea data communication, please contact the sales contact person or authorized product distributor of Maxell Seiki Ltd. Notes on use of this material This material is intended as a reference to assist our customers in purchase of semiconductor products of Maxell Seiki Ltd., meeting the customer's application. For technical information described in this material, it does not convey any license under any intellectual property rights, or any other rights, belonging to Maxell Seiki Ltd. Maxell Seiki Ltd. assumes no responsibility for any damage, or infringement of any third-party's rights, arising from the use of any product data, diagrams, charts, or circuit application examples contained in this material. Prior written approval of Maxell Seiki Ltd. is required to reprint or reproduce this material in whole or in part. All the product information and product specification described in this material represent information on products at the time of publication of this material, and are subject to change without notice. Therefore, we recommended that customers contact the sales contact person or authorized product distributor of Maxell Seiki Ltd. before purchasing our products to ensure that the information in this material is the latest. Before starting actual product design, delivery specifications shall be exchanged with Maxell Seiki Ltd., and the product design shall be proceeded according to exchanged delivery specifications. MAXELL SEIKI CONFIDENTIAL 18 Coil-on-Chip RFID ME-MR23 This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

-- Reorient or relocate the receiving antenna.

-- Increase the separation between the equipment and receiver.

-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

-- Consult the dealer or an experienced radio/TV technician for help. You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment. This device complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. The antenna used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. MAXELL SEIKI CONFIDENTIAL 19