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STMicroelectronics LRI64-A1T/1GE
- Part No.:
- LRI64-A1T/1GE
- Manufacturer:
- STMicroelectronics
- Category:
- RFID Transponders, Tags
- Package:
- Datasheet:
-
LRI64-A1T/1GE.pdf
- Description:
- RFID TAG R/W 13.56MHZ INLAY
- Quantity:
- Payment:
- Shipping:
Inventory:3,391
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Product details
Overview
LRI64-A1T/1GE from STMicroelectronics is a contactless 120-bit WORM memory tag IC compliant with ISO 15693 and ISO 18000-3 Mode 1, operating at 13.56 MHz ±7 kHz. It features a 64-bit factory-programmed UID, 7 × 8-bit user-writable WORM blocks, 26 Kbit/s bidirectional data rate, and internal tuning capacitors (21 pF / 28.5 pF / 97 pF) for antenna matching - deployed in RFID-based asset tagging and inventory tracking systems.
For engineers reviewing the LRI64-A1T/1GE datasheet, LRI64-A1T/1GE pinout, LRI64-A1T/1GE application, or LRI64-A1T/1GE equivalent, key selection considerations include ISO 15693 protocol compliance, 7 ms typical programming time, EAS capability via software control, load modulation with 423 kHz subcarrier, and UFDFPN8 (2 × 3 mm²) RoHS-compliant packaging.
Technical Context
The LRI64-A1T/1GE implements a reader-talks-first (RTF) protocol with mandatory anticollision support via Inventory and Stay Quiet commands. Its memory map allocates blocks 0–7 for UID storage (including IC_ID = 02h and DSFID = E0h), blocks 8–9 for AFI/DSFID registers, and blocks 10–14 as customer-writable WORM areas - each automatically locked after first valid write.
Communication uses 10% ASK modulation with "1-out-of-4" pulse position coding for VCD→LRI64 transfers, and load modulation with Manchester coding on a 423 kHz single subcarrier for LRI64→VCD responses - both at 26 Kbit/s. Power is harvested inductively from the 13.56 MHz field; no external supply required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Frequency | 13.56 MHz ±7 kHz - matches ISO 15693/18000-3 Mode 1 carrier tolerance for interoperability with standard readers. |
| Data Rate (Both Directions) | 26 Kbit/s - enables fast tag interrogation in high-throughput logistics scanning environments. |
| Memory Capacity | 120-bit non-volatile memory - organized as 15 × 8-bit blocks, with 7 blocks (56 bits) user-writable WORM space. |
| UID Length | 64-bit unique identifier - stored across blocks 0–7, used in anticollision and system identification per ISO standards. |
| Programming Time | 7 ms (typical) per block - defines minimum command interval during bulk WORM programming sequences. |
| Data Retention | >40 years - ensures long-term integrity of serialized asset IDs and configuration data without refresh. |
| EAS Support | Software-controlled electrical article surveillance - allows integration into retail loss-prevention systems via command activation. |
Pinout & Package
Package: UFDFPN8 (MLP8), 8-lead ultra-thin fine-pitch dual flat no-lead package, 2 × 3 mm² footprint, ECOPACK® RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC0 | Antenna coil terminal 0 | Direct bond pad for one end of external loop antenna; forms resonant LC tank with internal tuning capacitor. |
| AC1 | Antenna coil terminal 1 | Direct bond pad for opposite end of external loop antenna; completes RF energy harvesting path. |
| Pins 3–8 | Not connected (n/c) | No internal connection; must be left floating or grounded per PCB layout best practices to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| ISO 15693 & ISO 18000-3 Mode 1 Compliance | Guarantees interoperability with industrial and retail RFID infrastructure without protocol translation layers. |
| 7 × 8-bit WORM User Area | Enables one-time secure provisioning of calibration data, firmware version, or device-specific parameters in manufacturing. |
| Internal Tuning Capacitors | Three values (21 pF / 28.5 pF / 97 pF) selectable via mask option - simplifies antenna matching across diverse tag form factors. |
| Electrical Article Surveillance (EAS) | Software-activated mode allows same tag to serve dual purpose: item-level ID + retail anti-theft flag. |
| Load Modulation w/ 423 kHz Subcarrier | Ensures robust backscatter communication under noisy RF conditions common in metal-rich warehouse environments. |
Applications
| Asset Tracking Tag | Retail Inventory Label |
|---|---|
|
Use Scenario: High-speed scanning of palletized goods in distribution centers using fixed-mount ISO 15693 readers. IC Role / Device Role / Timing Role: Passive memory tag providing unique item identity and batch metadata via Read Block commands. Use Value: 26 Kbit/s data rate and deterministic 7 ms write latency enable sub-second read/write cycles for 100+ tags per second throughput. |
Use Scenario: Shelf-level stock monitoring in apparel retail stores with handheld proximity readers. IC Role / Device Role / Timing Role: WORM-configured label storing size, color, SKU, and EAS-enable flag for real-time inventory reconciliation. Use Value: Software-controllable EAS eliminates need for separate security hard tags, reducing material cost and labeling complexity. |
| Tool & Equipment ID | Medical Device Authentication |
|
Use Scenario: Lifecycle logging of calibrated test equipment in semiconductor fabs using automated tool check-in kiosks. IC Role / Device Role / Timing Role: Immutable UID + WORM block storing calibration date, technician ID, and next due date. Use Value: >40-year data retention ensures traceability over full equipment service life without battery or memory refresh. |
Use Scenario: Reusable surgical instrument tracking in sterile processing departments with wash-cycle tolerant tags. IC Role / Device Role / Timing Role: Contactless tag embedded in instrument handle, storing manufacturer ID, model, and sterilization count. Use Value: No external power or connectors required - withstands repeated autoclaving and chemical exposure inherent to medical reprocessing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar contactless memory tag applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SL2 ICS20 | Same ISO 15693 compliance, but 2 KB EEPROM (not WORM); supports 106 Kbit/s high-speed mode. | Requires EEPROM endurance management; better suited for dynamic data logging than immutable ID storage. | Select when field-updatable data (e.g., usage counters) outweighs need for write-once assurance. |
| Tag-it HF-I Plus | 64-bit UID + 256-bit user memory; supports ISO 15693 but not ISO 18000-3 Mode 1; no EAS capability. | Lacks software-controlled EAS and multi-capacitor antenna tuning - limits deployment in retail loss prevention. | Prefer for cost-sensitive general-purpose tagging where EAS and precise tuning are non-critical. |
Compared with SL2 ICS20 and Tag-it HF-I Plus, the LRI64-A1T/1GE uniquely combines WORM-only user memory, triple internal tuning capacitance, and EAS enablement - making it optimal for tamper-resistant asset ID and retail anti-theft use cases requiring guaranteed one-time programming.
Availability
LRI64-A1T/1GE is available at Aetrix Electronics and suitable for RFID-based asset tracking, retail inventory labeling, and medical device authentication requiring stable component supply and long-term data integrity.
Supply support for LRI64-A1T/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, Switzerland, designing and manufacturing microcontrollers, analog ICs, MEMS, and smart power devices for industrial, automotive, and consumer markets.
The LRI64 belongs to ST's contactless RFID tag IC product line, engineered specifically for ISO 15693-compliant passive memory applications demanding high reliability, low-cost antenna integration, and long-term data retention in harsh environments.
FAQ
Is the LRI64-A1T/1GE still in active production?
No - the LRI64-A1T/1GE is marked obsolete by STMicroelectronics as of the August 2008 datasheet revision. Aetrix Electronics maintains legacy inventory with full traceability and offers engineering support for design-in continuity, including pin-compatible alternatives and migration guidance.
Can the 64-bit UID be rewritten after initial programming?
No - the UID is factory-programmed during wafer test and permanently fixed. Blocks 0–7 contain the UID (including IC_ID = 02h and DSFID = E0h); only blocks 10–14 are user-writable WORM space, and those lock permanently after first successful Write Block command.
What antenna design guidelines apply to the AC0/AC1 terminals?
AC0 and AC1 require direct wire-bonding to a tuned loop antenna with impedance matching optimized for 13.56 MHz. ST recommends selecting internal tuning capacitance (21 pF / 28.5 pF / 97 pF) based on measured antenna inductance to achieve resonance within ±7 kHz tolerance per ISO 15693.
Does the LRI64-A1T/1GE support password protection or encryption?
No - the LRI64-A1T/1GE implements no cryptographic features, access passwords, or memory locking beyond automatic WORM block protection. Security relies solely on physical possession and protocol-level addressing (Addressed vs. Non-addressed mode), per ISO 15693 specification.
LRI64-A1T/1GE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- LRI64
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Style:
- Inlay
- Technology:
- Passive
- Frequency:
- 13.56MHz
- Memory Type:
- Read/Write
- Writable Memory:
- 120b (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)
LRI64-A1T/1GE FAQ
1.How can I place an order for LRI64-A1T/1GE through Aetrix?
Please submit a Request for Quotation (RFQ) for LRI64-A1T/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 LRI64-A1T/1GE reliable?
The price and inventory of LRI64-A1T/1GE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LRI64-A1T/1GE is usually 5 days.
3.What payment methods are accepted for LRI64-A1T/1GE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LRI64-A1T/1GE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LRI64-A1T/1GE?
LRI64-A1T/1GE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LRI64-A1T/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 LRI64-A1T/1GE?
For technical support, including LRI64-A1T/1GE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LRI64-A1T/1GE requirements.
6.How does Aetrix verify that LRI64-A1T/1GE is sourced from the original manufacturer or authorized distributors?
All LRI64-A1T/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 LRI64-A1T/1GE meets industry standards.
7.What is the process for return or replacement of LRI64-A1T/1GE?
All LRI64-A1T/1GE units undergo pre-shipment inspection (PSI). If there is an issue with LRI64-A1T/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 LRI64-A1T/1GE part is unused and in its original packaging.
Return procedure for LRI64-A1T/1GE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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