The topaz 512 card is a two terminal device designed to be connected a loop antenna to produce a passive NFC/RFID tag operating in standard unlicensed 13.56MHz frequency band.
The read/write data within the Topaz IC memory is EEPROM-based, allowing individual blocks to become locked into read only operation by contactless command. Once locked, to obtain the vehicle irreversible.
The Topaz IC is based on an actual physical EEPROM array sized 120 bytes.
Passive operation implies that no battery is needed because the Topaz IC gathers its operational energy from the interrogation field generated from the NFC Reader/Writer unit.
Features:
-Topaz IC can be used in NFC Forum Tags/Smartposter/ One-touch Setup applications and also general RFID
-Focused on operation with NFC devices which attempt to ISO/IEC 18092 (NFCIP-1) and/or ISO/IEC 21481 (NFCIP-2)
-Made to be suitable for the ISO/IEC 14443:2001 parts 2 and 3
-ISO/IEC 14443 type A modulation scheme
-Passive RFID tag operating in the unlicensed 13.56MHz band
- Write and read (R/W) operation
-Once Programmable (OTP) & Write Once Read Many (WORM) operation
- Typical operating range as much as 10cm determined by tag/reader antenna coil sizes and orientation in accordance with the various readers unit
-Fast data communication rate of 106 kbit/s
-UID provision in Topaz IC to allow collision detection by means of the various readersAndCopy writer issuing a RID (Read UID) command.
-Protection for data throughout the write operation from the Topaz IC only responding to commands prepended with a matching UID. This also provides protection from the situation where there are multiple tags from the reader field
- Fast byte write speed
- Data communications are protected by 16-bit CRC integrity checking
-EPROM based user read/write memory area organized as 12 blocks of 8-bytes
-7-bytes of Unique Identification (UID) number to use in data authentication/anti-cloning
-96-bytes of user read/write memory
-6-bytes of OTP memory
-All memory areas are individually one time lockable by RF command to prevent further modification of NFC card data and to produce read only functionality.
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