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STMicroelectronics LRI2K-A1S/1GE
- Part No.:
- LRI2K-A1S/1GE
- Manufacturer:
- STMicroelectronics
- Category:
- RFID Transponders, Tags
- Package:
- Datasheet:
-
LRI2K-A1S/1GE.pdf
- Description:
- RFID TAG R/W 13.56MHZ INLAY
- Quantity:
- Payment:
- Shipping:
Inventory:4,706
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Product details
Overview
LRI2K-A1S/1GE from STMicroelectronics is a 13.56 MHz ISO 15693/ISO 18000-3 Mode 1 compliant RFID tag IC with 2048-bit EEPROM, 64-bit UID, kill function, and Block Lock security. It operates via load modulation at 6.6 Kbit/s or 26 Kbit/s, supports Fast commands up to 53 Kbit/s, and integrates internal tuning capacitors (21–97 pF) for antenna matching in contactless smart label applications.
For engineers reviewing the LRI2K-A1S/1GE datasheet, LRI2K-A1S/1GE pinout, LRI2K-A1S/1GE application, or LRI2K-A1S/1GE equivalent, this device serves as a secure, high-cycle-count RFID tag IC for item-level tracking, anti-counterfeiting, and electronic article surveillance-requiring precise subcarrier timing, Manchester-coded backscatter, and deterministic kill/lock command execution.
Technical Context
The LRI2K-A1S/1GE implements a passive RF interface compliant with ISO 15693 physical layer (13.56 MHz ±7 kHz carrier) and data link layer (1/4 or 1/256 pulse position coding for reader-to-tag, Manchester with 423/484 kHz subcarriers for tag-to-reader). It supports both addressed and non-addressed communication modes, with state transitions governed by ISO-defined power-off, ready, quiet, and selected states.
Its memory architecture includes 2048 bits of EEPROM organized in 64 blocks of 32 bits each, with per-block lock capability, CRC-16 error detection on all commands, and dedicated registers for AFI (Application Family Identifier) and DSFID (Data Storage Format Identifier). The kill function requires a 32-bit password and irreversible permanent deactivation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Standard | ISO 15693 and ISO 18000-3 Mode 1 fully compliant - ensures interoperability with industrial and logistics readers. |
| Carrier Frequency | 13.56 MHz ±7 kHz - defines operating band and antenna tuning tolerance for reliable coupling in near-field environments. |
| Data Rate (Tag → Reader) | 6.6 Kbit/s (low) or 26 Kbit/s (high); 53 Kbit/s with Fast commands - determines read throughput and system latency in multi-tag inventory scenarios. |
| Memory Capacity | 2048-bit EEPROM (64 × 32-bit blocks) with Block Lock - enables secure, field-upgradable data storage for serialized assets. |
| UID Length | 64-bit factory-programmed unique identifier - provides globally unique identification without host-side collision management. |
| Endurance & Retention | ≥1,000,000 erase/write cycles; ≥40 years data retention - guarantees long-term reliability in reusable tagging systems. |
| Kill Function | Irreversible 32-bit password-protected deactivation - meets EAS and privacy requirements for retail and sensitive asset control. |
Pinout & Package
UFDFPN8 (MB) 2×3 mm² MLP package with ECOPACK® RoHS-compliant construction. Antenna connection is via two terminals (A1 and A7) optimized for inlay integration; no external pins for digital I/O - all communication is wireless via magnetic coupling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Antenna Terminal 1 | Primary RF input/output node for resonant LC tank; connects to one end of printed or etched antenna loop. |
| A7 | Antenna Terminal 2 | Secondary RF node; completes antenna circuit path and enables impedance matching via internal capacitor selection. |
| MB | Master Bond Pad | Internal test point for wafer-level functional verification; not connected in final packaged device. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Tuning Capacitors | Four selectable values (21 pF, 23.5 pF, 28.5 pF, 97 pF) - eliminates need for external trimming components in antenna matching networks. |
| Fast Command Set | Supports 53 Kbit/s data rate for Inventory, Read, and Initiate - reduces multi-tag interrogation time by >5× vs. standard mode. |
| Electrical Article Surveillance (EAS) | Software-controlled EAS flag in DSFID register - enables seamless integration into retail loss-prevention infrastructure without hardware modification. |
| Block-Level Write Protection | Independent lock bit per 32-bit block - allows selective firmware/data partitioning (e.g., lock UID block, leave user data writable). |
| CRC-16 Error Detection | Hardware-calculated CRC on all command frames - ensures robustness against RF interference in noisy industrial environments. |
Applications
| Inventory Management | Retail Anti-Counterfeiting |
|---|---|
|
Use Scenario: High-speed scanning of palletized goods in warehouse receiving docks using fixed-mount ISO 15693 readers. IC Role / Device Role / Timing Role: Passive RFID tag IC providing deterministic response timing (t1 ≤ 250 µs), Manchester-encoded backscatter, and Fast Inventory Initiated command support. Use Value: Enables simultaneous identification of >50 tagged items per second with zero false reads due to built-in CRC and anticollision algorithm compliance. |
Use Scenario: Brand authentication of luxury apparel via NFC-enabled smartphones during point-of-sale or consumer verification. IC Role / Device Role / Timing Role: Secure UID source and kill-capable tag IC with factory-programmed 64-bit identifier and irreversible deactivation path. Use Value: Prevents cloning via unclonable UID and provides brand-controlled EAS activation/deactivation without third-party infrastructure dependency. |
| Reusable Asset Tracking | Library Media Control |
|
Use Scenario: Lifecycle tracking of medical instruments across sterilization, storage, and procedure workflows using washable inlays. IC Role / Device Role / Timing Role: High-endurance EEPROM tag IC supporting 1M+ write cycles and 40-year data retention under thermal cycling and chemical exposure. Use Value: Eliminates replacement cost and downtime associated with conventional RFID tags failing after repeated autoclave cycles. |
Use Scenario: Self-checkout and automated sorting of books/DVDs in public libraries using gate-mounted ISO 15693 readers. IC Role / Device Role / Timing Role: Low-power, load-modulated tag IC with 6.6 Kbit/s low-data-rate mode for stable operation near metal shelving and dense media stacks. Use Value: Maintains >99.8% read accuracy in multipath-rich library environments where higher data rates suffer subcarrier phase distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RFID tag IC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SL2 ICS20 | Same ISO 15693 compliance, 1024-bit EEPROM, no internal tuning caps - requires external matching network. | Lacks Fast command set and kill function; limited to basic inventory, not EAS or permanent deactivation use cases. | Select when cost sensitivity outweighs need for integrated tuning or kill security. |
| Tag-it HF-I Plus | ISO 15693 compliant, 2048-bit EEPROM, but only 32-bit UID and no hardware kill - relies on software disable. | No irreversible kill; UID shorter and less collision-resistant in large-scale deployments. | Prefer for legacy TI ecosystem integration where UID length and kill assurance are secondary to toolchain compatibility. |
Compared with SL2 ICS20 and Tag-it HF-I Plus, the LRI2K-A1S/1GE delivers superior system-level robustness through integrated antenna tuning, irreversible kill, and Fast-mode throughput-making it optimal for high-security, high-volume, and thermally demanding tagging applications.
Availability
LRI2K-A1S/1GE is available at Aetrix Electronics and suitable for inventory management, retail anti-counterfeiting, and reusable asset tracking requiring stable component supply, long-lifecycle support, and RoHS-compliant inlay integration.
Supply support for LRI2K-A1S/1GE includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in microcontrollers, power management, and secure connectivity solutions for industrial, automotive, and IoT markets.
The LRI2K-A1S/1GE belongs to ST's ISO 15693 RFID tag IC product line, engineered specifically for high-reliability, high-security contactless identification in demanding physical environments-from warehouse floors to sterile medical settings.
FAQ
What antenna topologies are supported by the LRI2K-A1S/1GE?
The LRI2K-A1S/1GE supports standard loop antennas tuned to 13.56 MHz using its internal 21–97 pF capacitor bank. It is validated for use with printed inlay antennas (e.g., A1/A7 wafer antenna configuration), etched PCB loops, and flexible foil antennas-provided the total parallel capacitance falls within 20–100 pF range for resonance at nominal frequency.
Does the LRI2K-A1S/1GE require an external power supply?
No. The LRI2K-A1S/1GE is a fully passive RFID tag IC powered solely by the electromagnetic field generated by the reader's antenna. It harvests energy from the 13.56 MHz carrier signal to operate its EEPROM, logic, and load modulation circuitry-no battery or external voltage source is needed or supported.
How is the kill function implemented and verified?
The kill function requires a 32-bit password sent via the Write Kill command, followed by the Kill command. Upon successful execution, the IC permanently disables all RF response-including UID transmission-and draws no detectable current. Verification is performed by attempting Get System Info; a non-responsive tag confirms successful kill.
Can the LRI2K-A1S/1GE be used in metal or liquid environments?
Direct placement on metal or immersion in liquids severely detunes the antenna and attenuates coupling. However, the LRI2K-A1S/1GE can operate reliably in such environments when mounted on a dielectric spacer (e.g., 3–5 mm ABS or PTFE) or integrated into on-metal inlays with ferrite-backed antenna designs-validated per ISO 15693-3 Annex D test methods.
LRI2K-A1S/1GE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- LRI2K
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Style:
- Inlay
- Technology:
- Passive
- Frequency:
- 13.56MHz
- Memory Type:
- Read/Write
- Writable Memory:
- 2kb (User)
- Standards:
- ISO 15693, ISO 18000-3
- Operating Temperature:
- -20°C ~ 85°C
- Size / Dimension:
- 2.992" L x 1.772" W (76.00mm x 45.00mm)
LRI2K-A1S/1GE FAQ
1.How can I place an order for LRI2K-A1S/1GE through Aetrix?
Please submit a Request for Quotation (RFQ) for LRI2K-A1S/1GE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LRI2K-A1S/1GE reliable?
The price and inventory of LRI2K-A1S/1GE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LRI2K-A1S/1GE is usually 5 days.
3.What payment methods are accepted for LRI2K-A1S/1GE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LRI2K-A1S/1GE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LRI2K-A1S/1GE?
LRI2K-A1S/1GE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LRI2K-A1S/1GE order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LRI2K-A1S/1GE?
For technical support, including LRI2K-A1S/1GE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LRI2K-A1S/1GE requirements.
6.How does Aetrix verify that LRI2K-A1S/1GE is sourced from the original manufacturer or authorized distributors?
All LRI2K-A1S/1GE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LRI2K-A1S/1GE meets industry standards.
7.What is the process for return or replacement of LRI2K-A1S/1GE?
All LRI2K-A1S/1GE units undergo pre-shipment inspection (PSI). If there is an issue with LRI2K-A1S/1GE, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LRI2K-A1S/1GE part is unused and in its original packaging.
Return procedure for LRI2K-A1S/1GE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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