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Home > Products > RF and Wireless > RFID, RF Access, Monitoring ICs

STMicroelectronics M24LR64-RDW6T/2

Name: M24LR64-RDW6T/2
Brand: STMicroelectronics
SKU: M24LR64-RDW6T/2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: M24LR64-RDW6T/2

Manufacturer:: STMicroelectronics

Category:: RFID, RF Access, Monitoring ICs

Package:: 8-TSSOP (0.173", 4.40mm Width)

Datasheet:: M24LR64-RDW6T/2.pdf

Description:: IC RFID TRANSP 13.56MHZ 8TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:4,320

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Product details

Overview

M24LR64-RDW6T/2 from STMicroelectronics is a dual-interface Dynamic NFC/RFID tag IC integrating 64-Kbit EEPROM, I²C bus (up to 400 kHz), and ISO 15693/ISO 18000-3 Mode 1 RF interface at 13.56 MHz. It supports simultaneous wired and contactless access to shared memory, enabling secure configuration and data logging in industrial asset tracking tags and smart packaging.

For engineers reviewing the M24LR64-RDW6T/2 datasheet, M24LR64-RDW6T/2 pinout, M24LR64-RDW6T/2 application, or M24LR64-RDW6T/2 equivalent, key selection considerations include dual-interface coherency, 64-bit UID enforcement, sector-level password protection in RF mode, and 1.8–5.5 V I²C supply range with ECOPACK2® RoHS/Halogen-free packaging.

Technical Context

The device implements a shared memory architecture where I²C and RF interfaces access identical 64-Kbit EEPROM space-organized as 8192 bytes for I²C and 2048 × 32-bit blocks for RF-with atomic write verification and automatic address incrementing. Memory is partitioned into user and system areas, with dedicated security registers for AFI/DSFID control and sector lock bits.

RF operation complies fully with ISO 15693:2019, supporting 10% and 100% ASK modulation, Manchester-coded load modulation on 423 kHz/484 kHz subcarriers, and Fast commands enabling 53 kbit/s read throughput. I²C interface includes byte/page write, sequential/random read, and single-password write-lock capability.

Key Specifications

Parameter	Value and Actual Design Meaning
I²C Speed	Up to 400 kHz - enables fast host MCU configuration without requiring high-speed GPIO bit-banging.
RF Standard	ISO 15693 & ISO 18000-3 Mode 1 - ensures interoperability with standard RFID readers and NFC smartphones.
Memory Size	64-Kbit EEPROM (8192 bytes I²C / 2048 × 32-bit blocks RF) - provides sufficient storage for firmware metadata, calibration data, and event logs.
Write Time	I²C: ≤5 ms; RF: ≤5.75 ms - guarantees deterministic update latency for time-critical field reprogramming.
Supply Range	1.8 V to 5.5 V - allows direct connection to diverse host rails (e.g., 3.3 V microcontrollers or 5 V industrial PLCs).
Data Retention	>40 years - validated for long-life deployments in infrastructure monitoring and medical devices.
Write Cycles	>1 million - supports frequent sensor data logging or counter updates over product lifetime.

Pinout & Package

Package: TSSOP8 (DW), 8-pin, 3.0 × 4.4 mm body, 0.65 mm pitch, ECOPACK2® compliant.

Pin/Terminal	Circuit Role	Design Meaning
SCL	I²C Clock Input	Drives synchronous serial clock for I²C transactions; supports standard and fast-mode timing.
SDA	I²C Data Bidirectional	Open-drain bidirectional line for data transfer; requires external pull-up resistor.
E0, E1	Chip Enable Inputs	Two-level hardware address select (00–11) enabling up to four devices on same I²C bus.
AC0, AC1	RF Antenna Terminals	Differential connection points for external LC tank; internal 27.5 pF tuning capacitance reduces external component count.
VCC	Power Supply	Single supply for both I²C logic and RF front-end; no separate analog/digital rails required.
VSS	Ground Reference	Common return path for I²C signaling and RF demodulation circuitry.

Key Features

Feature	Design Value
Dual-interface memory coherence	Shared 64-Kbit EEPROM accessible via I²C and RF without data duplication or synchronization overhead.
RF Fast command support	Enables 53 kbit/s read throughput - doubles standard ISO 15693 rate for rapid inventory scanning.
Multi-layer security	Independent password systems: single password for I²C write-lock; multiple sector passwords for RF block protection.
Enhanced ESD/latch-up immunity	Qualified to ±4 kV HBM - improves robustness in handling-sensitive industrial and logistics environments.
ECOPACK2® compliance	RoHS-compliant and halogen-free packaging - meets global environmental regulations for consumer and medical products.

Applications

Industrial Asset Tagging

Smart Packaging

Use Scenario: Permanent attachment to CNC machine tools for storing maintenance history, calibration certificates, and firmware version.

IC Role / Device Role / Timing Role: Dual-interface EEPROM serving as tamper-resistant configuration vault; RF enables field technician updates without disassembly; I²C allows factory programming during assembly.

Use Value: Eliminates manual logbooks and prevents unauthorized firmware downgrades via password-protected RF writes.

Use Scenario: Embedded in pharmaceutical blister packs to store batch number, expiry date, and cold-chain temperature logs.

IC Role / Device Role / Timing Role: Secure data carrier interfacing with handheld NFC readers at pharmacy counters and I²C-connected temperature sensors inside packaging.

Use Value: Enables real-time authentication and compliance reporting while retaining full traceability across supply chain tiers.

Medical Device ID

Logistics Container Tracking

Use Scenario: Integrated into reusable surgical instrument trays to record sterilization cycles and usage counts.

IC Role / Device Role / Timing Role: Non-volatile memory with UID-enforced identity; RF used for quick tray identification pre-surgery; I²C used by washer-disinfector for cycle logging.

Use Value: Ensures regulatory compliance (FDA UDI) and extends equipment life through precise usage-based maintenance scheduling.

Use Scenario: Mounted on intermodal shipping containers to log GPS waypoints, door-open events, and ambient humidity exposure.

IC Role / Device Role / Timing Role: Shared-memory tag storing time-stamped sensor data via I²C and enabling bulk reader interrogation at port gates via RF.

Use Value: Reduces manual inspection labor by >70% and provides auditable chain-of-custody evidence without cellular connectivity.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-interface RFID tag applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ST25DV64K-IER	Same 64-Kbit EEPROM, but adds I²C interrupt output and dynamic register mapping; supports NFC Forum Type 5 tag platform.	Better suited for smartphone-initiated interactions (e.g., tap-to-configure IoT gateways) due to interrupt-driven event notification.	Select when host MCU requires asynchronous notification of RF activity or NFC Forum compliance is mandatory.
NXP NT3H2221W0FHKH	32-Kbit EEPROM, supports ISO 14443A + NFC Forum Type 4; lacks I²C write-lock and sector password granularity.	Optimized for mobile payment and access control where ISO 14443 interoperability outweighs memory size and security depth.	Select only if ISO 14443A/NFC-F compatibility is required and 32-Kbit capacity suffices for use case.

Compared with ST25DV64K-IER, M24LR64-RDW6T/2 offers stronger RF write security via multi-sector passwords but lacks interrupt signaling; versus NT3H2221, it delivers double memory and ISO 15693-specific features like Fast commands and 53 kbit/s read, critical for high-throughput industrial scanning.

Availability

M24LR64-RDW6T/2 is available at Aetrix Electronics and suitable for industrial asset tagging, smart packaging, medical device ID, and logistics container tracking requiring stable component supply across extended production lifecycles.

Supply support for M24LR64-RDW6T/2 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, power management ICs, sensors, and secure connectivity solutions.

M24LR64-RDW6T/2 belongs to the M24LR family of Dynamic NFC/RFID tags engineered specifically for industrial-grade dual-interface data logging and secure identity management in harsh or regulated environments.

FAQ

What is the maximum I²C clock frequency supported by M24LR64-RDW6T/2?

The device supports I²C Fast Mode up to 400 kHz, verified per I²C specification. This allows efficient communication with common microcontrollers without custom timing adjustments. The internal state machine handles clock stretching and ACK polling automatically, and no external level shifters are needed within the 1.8–5.5 V supply range.

Does M24LR64-RDW6T/2 require external tuning components for its RF interface?

No external capacitors are required for basic ISO 15693 operation because the IC integrates a 27.5 pF internal tuning capacitance. However, an external antenna coil (typically 1–2 µH) must be connected between AC0 and AC1, and fine-tuning may involve minor series/parallel capacitor adjustments to match reader field strength and frequency tolerance (±7 kHz).

How does password protection differ between I²C and RF interfaces?

I²C uses a single global password to enable write-lock functionality (I2C_Write_Lock bit), preventing further I²C writes until reset. RF mode implements per-sector password protection: each of the 2048 blocks can be individually locked using distinct passwords stored in dedicated system memory, enabling granular access control for different data domains (e.g., calibration vs. usage logs).

Can M24LR64-RDW6T/2 operate without a VCC connection when powered solely by the RF field?

No. Unlike passive-only tags, M24LR64-RDW6T/2 requires VCC to be connected for I²C operation. In RF-only mode, it draws power from the reader's electromagnetic field via AC0/AC1, but VCC must still be tied to ground or left floating per datasheet guidance - it is not used as a power rail in pure RF mode. I²C functionality is disabled without VCC.

M24LR64-RDW6T/2 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-TSSOP (0.173", 4.40mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: RFID Transponder

Frequency:: 13.56MHz

Standards:: ISO 15693, ISO 18000-3, NFC

Interface:: I2C

Voltage - Supply:: 1.8V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-TSSOP

M24LR64-RDW6T/2 FAQ

1.How can I place an order for M24LR64-RDW6T/2 through Aetrix?

Please submit a Request for Quotation (RFQ) for M24LR64-RDW6T/2 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 M24LR64-RDW6T/2 reliable?

The price and inventory of M24LR64-RDW6T/2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24LR64-RDW6T/2 is usually 5 days.

3.What payment methods are accepted for M24LR64-RDW6T/2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24LR64-RDW6T/2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for M24LR64-RDW6T/2?

M24LR64-RDW6T/2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your M24LR64-RDW6T/2 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 M24LR64-RDW6T/2?

For technical support, including M24LR64-RDW6T/2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24LR64-RDW6T/2 requirements.

6.How does Aetrix verify that M24LR64-RDW6T/2 is sourced from the original manufacturer or authorized distributors?

All M24LR64-RDW6T/2 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 M24LR64-RDW6T/2 meets industry standards.

7.What is the process for return or replacement of M24LR64-RDW6T/2?

All M24LR64-RDW6T/2 units undergo pre-shipment inspection (PSI). If there is an issue with M24LR64-RDW6T/2, 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 M24LR64-RDW6T/2 part is unused and in its original packaging.

Return procedure for M24LR64-RDW6T/2:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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