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LRI2K

2048-bit ISO15693 contactless memory with 64-bit UID, AFI, DSFID, anti-collision, kill function
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The LRI2K is a contactless memory powered by the received carrier electromagnetic wave. It is a 2048-bit electrically erasable programmable memory (EEPROM). The memory is organized as 64 blocks of 32 bits. The LRI2K is accessed via the 13.56 MHz carrier electromagnetic wave on which incoming data are demodulated from the received signal amplitude modulation (ASK: amplitude shift keying). The received ASK wave is 10% or 100% modulated with a data rate of 1.6 Kbit/s using the 1/256 pulse coding mode or a data rate of 26 Kbit/s using the 1/4 pulse coding mode.

Outgoing data are generated by the LRI2K load variation using Manchester coding with one or two subcarrier frequencies at 423 kHz and 484 kHz. Data are transferred from the LRI2K at 6.6 Kbit/s in low data rate mode and 26 Kbit/s fast data rate mode. The LRI2K supports 53 Kbit/s in high data rate mode with one subcarrier frequency at 423 kHz.

The LRI2K follows the ISO 15693 recommendation for radio-frequency power and signal interface.

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Errata Sheet
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Datasheet

Key Features

  • ISO 15693 standard fully compliant
  • ISO 18000-3 Mode 1 standard fully compliant
  • 13.56 MHz ±7 kHz carrier frequency
  • To tag: 10% or 100% ASK modulation using 1/4 (26 Kbit/s) or 1/256 (1.6 Kbit/s) pulse position coding
  • From tag: load modulation using Manchester coding with 423 kHz and 484 kHz subcarriers in low (6.6 Kbit/s) or high (26 Kbit/s) data rate mode. Supports the 53 Kbit/s data rate with Fast commands
  • Internal tuning capacitor (21 pF, 23.5 pF, 28.5 pF, 97 pF)
  • 1 000 000 Erase/Write cycles (minimum)
  • 40 year data retention (minimum)
  • 2048 bits EEPROM with Block Lock feature
  • 64-bit unique identifier (UID)
  • Electrical article surveillance capable (software controlled)
  • Kill function
  • Read & Write (Block of 32 bits)
  • 5 ms programming time
  • PackagesECOPACK®(RoHS compliant)

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS4631: 2048-bit EEPROM tag IC at 13.56 MHz, with 64-bit UID and kill code, ISO 15693 and ISO 18000-3 Mode 1 compliant
8.3 640 KB

Application Notes

Description Version Size
pdf
AN2319: Using the 64-bit UID in contactless RFID applications
2.1 65 KB
pdf
AN2866: How to design a 13.56 MHz customized tag antenna
1.2 289 KB
pdf
AN3408: Using LRIxx, LRISxx, M24LRxx-R and M24LRxxE-R products as NFC vicinity tags
4.0 962 KB
pdf
AN3985: Using the CR95HF library with STM8L microcontrollers
2.1 1,074 KB
pdf
AN3992: Using an STM8L162M8 AES hardware accelerator with a CR95HF to encrypt contactless tag data memory
3.1 845 KB
pdf
AN4054: Comparison of RF addressing modes of low-density and high-density ISO/IEC 15693 devices
3.0 116 KB

Technical Notes & Articles

Description Version Size
pdf
TN0047: LRI2K, an RFID IC with EAS and privacy protection for smart library labels
1.3 128 KB
pdf
TN0076: Improving PCB traceability with RFID technology
1.4 346 KB
pdf
TN0280: Migrating from the LRI2K to the LRI1K RFID IC
1.1 75 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STSW-M24LR012 Nfcv-Reader Android App sample code
STSW-STM8017 Using an STM8L16x AES hardware accelerator with a CR95HF to encrypt contactless tag data memory (AN3992)

Publications and Collaterals

Flyer

Description Version Size
pdf
RFID and RF memory products - Based on ISO 14443 and ISO 15693
1.1 225 KB

Sample & Buy

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Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
LRI2K-SBN18/1GEActiveNi/Au WaferNot Applicable-2085_-.16No availability reported, please contact our Sales officeN/A-
LRI2K-SBN18/2GENRNDNi/Au WaferNot Applicable-2085_-.16No availability reported, please contact our Sales officeN/A-

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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