Contactless Memory Wafer

The LRI64 is a contactless memory, powered by an externally transmitted radio wave. It contains a 120-bit non-volatile memory. The memory is organized as 15 blocks of 8 bits, of which 7 blocks are accessible as write-once read-many (WORM) memory.The LRI64 is accessed using a 13.56 MHz carrier wave. Incoming data are demodulated from the received amplitude shift keying (ASK) signal, 10% modulated. The data are transferred from the reader to the LRI64 at 26 Kbit/s, using the “1-out-of-4” pulse encoding mode.Outgoing data are sent by the LRI64, generated by load variation on the carrier wave, using Manchester coding with a single subcarrier frequency of 423 kHz. The data are transferred from the LRI64 to the reader at 26 Kbit/s, in the high data rate mode.The LRI64 supports the high data rate communication protocols of ISO 15693 and ISO 18000-3 Mode 1 recommendations. All other data rates and modulations are not supported by the LRI64.

• ISO 15693 compliant
• ISO 18000-3 Mode 1 compliant
• 13.56 MHz ±7 kHz carrier frequency
• Supported data transfer to the LRI64: 10% ASK modulation using “1-out-of-4” pulse position coding (26 Kbit/s)
• Supported data transfer from the LRI64: Load modulation using Manchester coding with 423 kHz single subcarrier in fast data rate (26 Kbit/s)
• Internal tuning capacitor (21 pF, 28.5 pF, 97 pF)
• 7 × 8 bits WORM user area
• 64-bit unique identifier (UID)
• Read Block and Write Block commands (8-bit blocks)
• 7 ms programming time (typical)
• More than 40-year data retention
• Electrical article surveillance (EAS) capable (software controlled)
• Packages
  • ECOPACK® (RoHS compliant)