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STMicroelectronics LRI64-A1S/1GE
- Part No.:
- LRI64-A1S/1GE
- Manufacturer:
- STMicroelectronics
- Category:
- RFID Transponders, Tags
- Package:
- Datasheet:
-
LRI64-A1S/1GE.pdf
- Description:
- RFID TAG R/W 13.56MHZ INLAY
- Quantity:
- Payment:
- Shipping:
Inventory:4,901
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Product details
Overview
LRI64-A1S/1GE from STMicroelectronics is a contactless 13.56 MHz RFID memory tag IC compliant with ISO 15693 and ISO 18000-3 Mode 1, featuring a 120-bit non-volatile memory (7 × 8-bit WORM user area), 64-bit factory-programmed UID, and internal tuning capacitors (21 pF / 28.5 pF / 97 pF) for antenna matching in proximity identification systems.
For engineers reviewing the LRI64-A1S/1GE datasheet, LRI64-A1S/1GE pinout, LRI64-A1S/1GE application, or LRI64-A1S/1GE equivalent, this device supports high-data-rate (26 Kbit/s) bidirectional communication via ASK modulation (VCD→IC) and load-modulated Manchester coding (IC→VCD) with 423 kHz subcarrier - critical for fast inventory and secure item-level tagging in industrial and logistics environments.
Technical Context
The LRI64-A1S/1GE implements a reader-talk-first (RTF) protocol with mandatory anticollision via Inventory command, where UID-based selection enables simultaneous interrogation of multiple tags. Its state machine includes Power-off, Ready, and Quiet modes, with automatic block locking after first write to WORM memory.
Communication relies on inductive coupling at 13.56 MHz ±7 kHz; power is harvested from the RF field and regulated internally. Data exchange uses "1-out-of-4" pulse position coding for uplink (26 Kbit/s) and Manchester-coded load modulation with 423 kHz single subcarrier for downlink (26 Kbit/s), fully aligned with ISO 15693 physical layer requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Frequency | 13.56 MHz ±7 kHz - ensures interoperability with standard ISO 15693 readers and regulatory compliance in global HF RFID bands. |
| Data Rate (VCD→IC) | 26 Kbit/s using "1-out-of-4" PPM - enables rapid command transmission with robust noise immunity in dense tag environments. |
| Data Rate (IC→VCD) | 26 Kbit/s using Manchester + 423 kHz subcarrier - delivers reliable response timing and synchronization for high-throughput inventory cycles. |
| Memory Capacity | 120-bit total: 64-bit UID (blocks 0–7), 8-bit AFI, 8-bit DSFID, 56-bit WORM (blocks 10–14) - supports unique identification plus application-specific write-once data storage. |
| WORM Programming Time | 7 ms typical per block - defines minimum inter-command delay for sequential writes and impacts overall tag programming throughput. |
| Data Retention | >40 years - guarantees long-term integrity of UID and customer-written WORM data without battery or external power. |
| EAS Capability | Software-controlled Electronic Article Surveillance - allows integration into retail loss-prevention systems via dedicated command activation. |
Pinout & Package
Package: UFDFPN8 (MLP8), 2 × 3 mm², ultra-thin fine-pitch dual flat no-lead, RoHS-compliant ECOPACK®.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC0 | Antenna coil terminal | Direct bond pad for one end of external LC antenna; forms resonant tank with internal tuning capacitor. |
| AC1 | Antenna coil terminal | Direct bond pad for other end of external LC antenna; completes RF energy harvesting path. |
| n/c (pins 3–8) | No connection | Internally unconnected; no routing or bonding required - simplifies PCB layout and reduces parasitic coupling risk. |
Key Features
| Feature | Design Value |
|---|---|
| ISO 15693 & ISO 18000-3 Mode 1 compliance | Guarantees interoperability with certified HF RFID infrastructure including access control panels, warehouse readers, and library systems. |
| Factory-programmed 64-bit UID | Enables globally unique identification without host-side UID management; blocks 0–7 contain IC_ID and manufacturer-assigned values. |
| 7 × 8-bit WORM user area | Supports one-time configuration of asset-specific data (e.g., batch ID, calibration date) with hardware-enforced write protection after first programming. |
| Internal tuning capacitors (21/28.5/97 pF) | Reduces need for external matching components; allows optimization of antenna resonance across varying coil geometries and PCB layouts. |
| Electrical article surveillance (EAS) | Enables software-activated alarm mode for retail anti-theft applications without additional circuitry or firmware overhead. |
Applications
| Asset Tracking | Retail Inventory Management |
|---|---|
|
Use Scenario: High-speed scanning of palletized goods in distribution centers using handheld or portal RFID readers. IC Role / Device Role / Timing Role: Passive tag responding to Inventory commands with UID and WORM-stored lot number; operates in non-addressed mode for bulk read. Use Value: 26 Kbit/s data rate and deterministic 7 ms write time enable sub-second identification of 50+ tags per second under ISO 15693 polling. |
Use Scenario: Item-level tagging of apparel, electronics, or pharmaceuticals for real-time stock visibility and automated checkout. IC Role / Device Role / Timing Role: WORM memory stores SKU and serial data; EAS flag activated during store exit to trigger security gates. Use Value: >40-year data retention ensures shelf-life traceability; software-controlled EAS eliminates need for separate security tags. |
| Industrial Tool Authentication | Library Media Management |
|
Use Scenario: Verifying calibrated tools in aerospace maintenance bays using fixed-mount readers integrated into tool cribs. IC Role / Device Role / Timing Role: UID identifies tool model and calibration certificate; WORM area stores last calibration date and technician ID. Use Value: Automatic block locking prevents tampering with calibration records; ISO 15693 compliance ensures compatibility with legacy maintenance systems. |
Use Scenario: Self-checkout and automated sorting of books, DVDs, and periodicals in public libraries. IC Role / Device Role / Timing Role: Responds to Get_System_Info to report IC_ID and memory size; UID enables deduplication across multi-volume sets. Use Value: 64-bit UID eliminates collision in high-density shelving; Read Block/Write Block support enables circulation status updates during check-in/out. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RFID memory tag applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SL2 ICS20 | Same ISO 15693 compliance, but 256-bit EEPROM (not WORM); no internal tuning caps; requires external matching network. | Better suited for reprogrammable asset tags; lacks EAS capability and long-term WORM data integrity guarantee. | Select when field-updatable data storage is required over permanent record keeping. |
| Tag-it HF-I Plus | ISO 15693-compliant, 2048-bit user memory, but only 32-bit UID; no EAS support; 13.56 MHz ±7 kHz tolerance not explicitly specified. | Higher memory capacity for complex metadata, but weaker UID uniqueness and missing software-controllable security feature. | Choose for applications needing large user memory and lower cost, where EAS and 64-bit UID are non-critical. |
Compared with SL2 ICS20 and Tag-it HF-I Plus, the LRI64-A1S/1GE provides superior long-term data integrity via hardware-locked WORM memory, integrated antenna tuning, and EAS functionality - making it optimal for regulated, tamper-evident, and lifecycle-critical tagging.
Availability
LRI64-A1S/1GE is available at Aetrix Electronics and suitable for asset tracking, retail inventory management, industrial tool authentication, and library media management requiring stable component supply and long-lifecycle support.
Supply support for LRI64-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 specializing in microcontrollers, power management, sensors, and analog ICs, with strong heritage in RFID and contactless interface solutions.
The LRI64 belongs to ST's legacy HF RFID tag IC product line, designed specifically for secure, low-cost, and high-reliability item-level identification in industrial, logistics, and retail applications.
FAQ
Is the LRI64-A1S/1GE still in active production?
No - the LRI64-A1S/1GE is marked as Obsolete by STMicroelectronics per its official documentation. However, Aetrix Electronics maintains legacy inventory and offers extended supply support, including traceable lots and lifecycle coordination for ongoing production programs.
Can the 64-bit UID be rewritten by the end user?
Only partially: blocks 0–7 store the full 64-bit UID, but the IC_ID portion (UID 5 = 02h, UID 6 = E0h) is factory-programmed and immutable. Customer-writable segments exist only upon special request and require ST's pre-configuration - standard units have read-only UID.
What antenna design guidance applies to the LRI64-A1S/1GE?
The device integrates three internal tuning capacitors (21 pF, 28.5 pF, 97 pF) selectable via external strap options. Antenna inductance should target 1.0–1.5 µH for resonance at 13.56 MHz; recommended Q factor is 20–40 to balance read range and bandwidth.
Does the LRI64-A1S/1GE support password protection or encryption?
No - the LRI64-A1S/1GE implements no cryptographic features, password mechanisms, or memory access control beyond automatic WORM block locking. Security relies solely on physical UID uniqueness and write-once enforcement, not data confidentiality.
LRI64-A1S/1GE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- LRI64
- Packaging:
- Tape & Reel (TR)
- 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-A1S/1GE FAQ
1.How can I place an order for LRI64-A1S/1GE through Aetrix?
Please submit a Request for Quotation (RFQ) for LRI64-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 LRI64-A1S/1GE reliable?
The price and inventory of LRI64-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 LRI64-A1S/1GE is usually 5 days.
3.What payment methods are accepted for LRI64-A1S/1GE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LRI64-A1S/1GE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LRI64-A1S/1GE?
LRI64-A1S/1GE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LRI64-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 LRI64-A1S/1GE?
For technical support, including LRI64-A1S/1GE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LRI64-A1S/1GE requirements.
6.How does Aetrix verify that LRI64-A1S/1GE is sourced from the original manufacturer or authorized distributors?
All LRI64-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 LRI64-A1S/1GE meets industry standards.
7.What is the process for return or replacement of LRI64-A1S/1GE?
All LRI64-A1S/1GE units undergo pre-shipment inspection (PSI). If there is an issue with LRI64-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 LRI64-A1S/1GE part is unused and in its original packaging.
Return procedure for LRI64-A1S/1GE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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