Texas Instruments RF-HDT-AJLS-G1

Overview

RF-HDT-AJLS-G1 from Texas Instruments is a 13.56 MHz passive HF RFID transponder IC compliant with ISO/IEC 15693 and ISO/IEC 18000-3 standards. It features 256-bit user EEPROM (8 × 32-bit blocks), factory-programmed 64-bit UID, AFI support, and operates with ASK/FSK uplink modulation. Designed for smart label inlays in asset tagging and electronic ticketing applications.

For engineers reviewing the RF-HDT-AJLS-G1 datasheet, RF-HDT-AJLS-G1 pinout, RF-HDT-AJLS-G1 application, or RF-HDT-AJLS-G1 equivalent, this page delivers verified electrical specs, die-level mechanical data, antenna interface requirements, memory security model, and real-world deployment constraints for passive HF RFID system integration.

Technical Context

The RF-HDT-AJLS-G1 implements full-duplex communication using 13.56 MHz carrier with downlink ASK modulation (10–30% or 100%) and uplink ASK/FSK subcarrier modulation. It supports all ISO/IEC 15693 frame-synchronized, CRC-secured command combinations including Inventory, Read_Single_Block, Write_Single_Block, Lock_Block, Kill, and password-protected write.

Memory organization includes factory-locked 64-bit UID and AFI in dedicated blocks, plus 256-bit user EEPROM with per-block locking (user or factory). Block security uses ISO 15693-3 Bit 2 for irreversible factory lock status, enabling tamper-resistant data protection without external controllers.

Key Specifications

Pinout & Package

RF-HDT-AJLS-G1 is supplied as a bare die on sawn 200 mm wafers with Ni/Au bumps. Package is not encapsulated; it requires mounting onto an antenna substrate (e.g., etched aluminum) to form a resonant LC circuit. Die dimensions are 996 × 996 μm ±15 μm (excluding scribe line).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar HF RFID transponder applications.

Compared with RF-HDT-AJLS-G1, ICODE SLI-S offers greater memory depth but lacks factory-locked AFI, while ST25DV04K adds I²C functionality at the cost of increased complexity and power draw-making RF-HDT-AJLS-G1 optimal for cost-sensitive, pure HF RFID inlay applications requiring proven interoperability and minimal BOM count.

Availability

RF-HDT-AJLS-G1 is available at Aetrix Electronics and suitable for asset tagging, electronic ticketing, anti-counterfeit packaging, and building access badge applications requiring stable component supply and wafer-level traceability.

Supply support for RF-HDT-AJLS-G1 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

Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and connectivity technologies with over 50 years of innovation in industrial, automotive, and communications markets.

The Tag-it HF-I Pro family-including RF-HDT-AJLS-G1-is designed specifically for passive 13.56 MHz RFID inlay manufacturing, emphasizing wafer-level testability, antenna integration simplicity, and ISO-standard compliance for high-volume smart label production.

FAQ

What is the primary function of the RF-HDT-AJLS-G1 in an RFID system?

The RF-HDT-AJLS-G1 serves as a passive HF RFID transponder IC that receives power and commands wirelessly from a 13.56 MHz reader antenna, then responds with stored data such as its 64-bit UID or user-programmed content. It forms the core silicon element of smart labels and inlays, requiring no battery or external power source. RF-HDT-AJLS-G1 operates strictly in accordance with ISO/IEC 15693 and ISO/IEC 18000-3 standards to ensure interoperability across global HF RFID infrastructure.

Does the RF-HDT-AJLS-G1 require external components to operate?

Yes-the RF-HDT-AJLS-G1 must be bonded to an external antenna structure (e.g., etched aluminum or printed copper coil) to form a resonant LC circuit tuned to 13.56 MHz. The IC itself provides only the transponder logic and memory; antenna design, impedance matching (target Z = 6.5–15.5 kΩ), and substrate assembly are mandatory for functional operation. No external capacitors, resistors, or controllers are needed beyond the antenna interface.

How is memory protected against unauthorized writes on the RF-HDT-AJLS-G1?

RF-HDT-AJLS-G1 supports two-tier memory protection: factory-lockable blocks (irreversible, set during wafer test) and user-lockable blocks (reversible only via password-protected WriteSingleBlockPwd command). The 64-bit UID and AFI are factory-locked and cannot be altered post-production. Each of the eight 32-bit user blocks can be individually locked, and once locked, modification requires successful password authentication-ensuring data integrity in secure applications like access control or anti-counterfeiting.

What are the mechanical handling requirements for the RF-HDT-AJLS-G1 die?

RF-HDT-AJLS-G1 is delivered as a bare die on sawn 200 mm wafers with Ni/Au bumps (25 μm height ±10%). It must be handled under ESD-safe conditions (HBM ≥2.5 kV), stored in dry N₂ or dried air (40–60% RH) at 20°C ±5°C for ≤6 months, and mounted using flip-chip or conductive adhesive processes. Ink dots (black, 250–600 μm diameter) mark failed dies; functional RF-HDT-AJLS-G1 units are unmarked and must avoid contact between test pads (TDAT/GND) and antenna traces.

Can the RF-HDT-AJLS-G1 be used in environments with high temperature or humidity?

RF-HDT-AJLS-G1 is rated for operating temperatures from –40°C to +85°C and has 10-year data retention at 55°C, making it suitable for industrial indoor/outdoor labeling. However, the bare-die form factor requires robust encapsulation or lamination in the final inlay to prevent moisture ingress or mechanical damage. Humidity exposure must be controlled during assembly (storage per Table 3-3), and final inlays should meet IP54 or higher if deployed in high-humidity settings-RF-HDT-AJLS-G1 itself does not specify humidity operating limits beyond storage conditions.