ZMD41201 ISO 15693 Read/Write Wireless Tag IC Features Description ♦ Passive transponder with on-chip energy storage capacitor, hence no external supply buffer capacitor is needed The ZMD41201 is a fully integrated 13.56 MHz ISO 15693 compliant wireless tag transponder circuit. The on-chip EEPROM can be written in downlink direction and read in uplink direction by inductive coupling from a reader. The power is also extracted from the reader through inductive coupling. Due to the on-chip tank capacitor, the ZMD41201 only needs an external coil. ♦ Operating at 13.56 MHz with on-chip tank capacitor ♦ Anti-collision capability ♦ Communication range up to 1 meter ♦ 2k bits of wireless-programmable EEPROM The chip extracts its clocks from the incoming 13.56 MHz oscillation and the data from the envelope of the oscillation. Data is transmitted by load-modulating the incoming magnetic field. ♦ On-chip rectifier and voltage limiter ♦ ISO/IEC 15693 compliant Operating Reference Data Applications Temperature Range .............................. -40 to 85°C Supply Voltage, VDD ........................... 0.9 to 1.5 V Typical Supply Current (activation field) ............7 µA Frequency Range....................... 13.56MHz ±7 kHz • • • Access control and security Material logistics and asset management Contactless identification devices Functional Operation Communication Procedure 1. The tag is powered up by the operating field generated by the reader 2. The tag is ready in idle mode 3. The reader sends a command 4. The tag responds to the command Wireless tag (actual size)ö Modes of Operation ZMD41201 Downlink Uplink Modulation 10% or 100% selectable ASK or FSK selectable Data Rate Selections Long distance: 1.65k bit/s or fast transmission: 36.48k bit/s Low: 6.65k bit/s or high: 26.6k bit/s* Any combination is possible (ISO/IEC 15693 compliant) *) High data rate is slightly depending on selected modulation (ASK or FSK). For further information: BU Wireless Tel.: +49 (0)351 31530-370 Fax: +49 (0)351 31530-21 e-mail: [email protected] ZMD AG Grenzstrasse 28 D-01109 Dresden http://www.zmd.de ZMD Neuchâtel Office Avenue Edouard-Dubois 20 Case postale 50, CH-2006 Neuchâtel Tel.: +41 327310-488 ; fax : +41 327310-490 Copyright © 2001, ZMD Zentrum Mikroelektronik Dresden AG All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. The information furnished in this publication is preliminary and subject to changes without notice. Feature Sheet - 10/2001 – Printed in Germany