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STMicroelectronics M24LR04E-RMN6T/2
- Part No.:
- M24LR04E-RMN6T/2
- Manufacturer:
- STMicroelectronics
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
M24LR04E-RMN6T/2.pdf
- Description:
- IC RFID TRANSP 13.56MHZ 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:109,672
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Product details
Overview
M24LR04E-RMN6T/2 from STMicroelectronics is a dual-interface Dynamic NFC/RFID tag IC integrating 4-Kbit EEPROM, ISO 15693 RF interface, and I²C bus. It operates from 1.8 V to 5.5 V, supports energy harvesting via analog Vout pin, and delivers 26 kbit/s RF data rate with Manchester load modulation. Used in smart labels, asset tracking tags, and industrial maintenance loggers where battery-free operation and dual wired/wireless access are required.
For engineers reviewing the M24LR04E-RMN6T/2 datasheet, M24LR04E-RMN6T/2 pinout, M24LR04E-RMN6T/2 application, or M24LR04E-RMN6T/2 equivalent, key selection criteria include ISO 15693 compliance, 4-Kbit EEPROM partitioning (512 bytes I²C / 128 × 32-bit RF blocks), RF busy signaling via configurable RF WIP/BUSY pin, and energy harvesting sink current programmability across four ranges.
Technical Context
The M24LR04E-RMN6T/2 implements a true dual-interface architecture: its I²C port enables direct microcontroller read/write at up to 400 kHz, while its contactless interface complies fully with ISO 15693 and ISO 18000-3 Mode 1 standards. Internal tuning capacitance (27.5 pF) simplifies antenna matching for 13.56 MHz operation.
It features separate memory mapping for I²C (byte-addressable 512-byte space) and RF (128-block, 32-bit-per-block layout), with independent password protection-single password for I²C, multi-sector passwords for RF. The RF WIP/BUSY pin signals real-time tag activity during wireless writes, and Vout provides harvested energy output with four selectable sink current levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory capacity | 4-Kbit EEPROM: 512 bytes accessible via I²C; 128 × 32-bit blocks via RF interface. |
| RF interface | ISO 15693/ISO 18000-3 Mode 1 compliant; 13.56 MHz ±7 kHz carrier; supports 6.6/26/53 kbit/s data rates. |
| I²C interface | Two-wire serial interface; 400 kHz max clock rate; supports byte/page write (up to 4 bytes) and random/sequential read. |
| Energy harvesting | Analog Vout pin with 4 programmable sink current ranges; enables passive power extraction from RF field. |
| Write endurance | 1 million cycles at 25 °C; 150k cycles at 85 °C; >40-year data retention. |
| Operating temperature | –40 °C to +85 °C; qualified for industrial and extended-environment deployments. |
| Unique identifier | Factory-programmed 64-bit UID; enables secure device authentication and inventory management. |
Pinout & Package
Package: UFDFPN8 (ECOPACK2®), 2 mm × 2 mm, 0.4 mm pitch, exposed pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL | I²C serial clock input | Controls timing of I²C data transfers; supports standard/fast-mode (400 kHz) operation. |
| SDA | I²C bidirectional data line | Carries address/data during I²C read/write; open-drain with external pull-up required. |
| RF WIP/BUSY | Configurable digital output | Signals RF write-in-progress or RF busy state; user-selectable function via configuration byte. |
| Vout | Energy harvesting analog output | Delivers harvested RF power; sink current programmable in 4 ranges for optimized energy capture. |
| AC0, AC1 | RF antenna connection terminals | Differential inputs for 13.56 MHz LC tank; internal 27.5 pF tuning capacitance reduces external component count. |
| VSS | Ground reference | Common return path for I²C, RF, and energy harvesting circuits; must be low-impedance. |
| VCC | Supply voltage input | Accepts 1.8–5.5 V; powers I²C interface and internal logic; not used during pure RF operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-interface memory access | Simultaneous I²C and RF read/write capability enables hybrid system architectures-e.g., local MCU updates + remote reader interrogation. |
| Configurable RF status pin | RF WIP/BUSY pin can be set to indicate write progress or general RF activity, enabling host synchronization without polling. |
| Multi-layer security | Independent password schemes: single I²C password; per-sector RF passwords with lock bits prevent unauthorized block modification. |
| Self-timed programming | Internal write cycle timing eliminates need for host wait states; max 5 ms (I²C) or 5.75 ms (RF) including verify. |
| ESD/latch-up robustness | Enhanced protection exceeds HBM ±4 kV and latch-up immunity per JESD78, critical for handling in industrial environments. |
Applications
| Smart Industrial Labels | Asset Tracking Tags |
|---|---|
Use Scenario: Reusable metal-mounted labels on factory tools, storing calibration history and usage logs. IC Role / Device Role / Timing Role: Dual-interface EEPROM stores firmware revision, last service date, and operator ID-updated locally via I²C during maintenance, queried remotely via ISO 15693 reader. Use Value: Eliminates battery dependency; enables tamper-resistant logging with sector-level RF password locking per maintenance event. |
Use Scenario: High-density pallet tagging in warehouse logistics, supporting bulk inventory scanning. IC Role / Device Role / Timing Role: ISO 15693-compliant tag providing 53 kbit/s Fast Inventory Initiated command response for rapid multi-tag enumeration. Use Value: Achieves sub-second pallet-level inventory with 128-block memory structure optimized for standardized EPC/UID encoding. |
| Energy-Harvesting Sensor Nodes | Secure Product Authentication |
Use Scenario: Battery-free temperature/humidity sensor tags powered solely by reader field. IC Role / Device Role / Timing Role: Vout pin supplies harvested energy to external sensor ASIC; I²C writes sensor readings during active RF session. Use Value: Four programmable sink current ranges allow precise matching to antenna coupling and reader field strength for stable energy delivery. |
Use Scenario: Anti-counterfeit labeling for medical devices, requiring cryptographic traceability. IC Role / Device Role / Timing Role: Stores immutable 64-bit UID and manufacturer-signed DSFID/AFI in protected system memory; RF password prevents reprogramming. Use Value: Enables regulatory-compliant serialization with hardware-rooted identity and write-lockable configuration registers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dynamic NFC/RFID tag applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ST25DV04K-IER | Same 4-Kbit EEPROM and ISO 15693 interface, but adds I²C interrupt (IRQ) pin and enhanced RF command set (e.g., Fast Read Multiple Block). | Preferred for systems requiring host interrupt-driven RF event handling or higher-throughput bulk reads. | Select when IRQ signaling or >53 kbit/s Fast commands are needed; pinout differs (10-pin TSSOP vs. 8-pin UFDFPN). |
| NXH3670UK | NXP NFC controller with integrated 32-bit ARM Cortex-M0+; supports ISO 14443A/B and ISO 15693; no embedded EEPROM-requires external memory. | Suitable for complex NFC applications needing on-chip processing (e.g., secure element emulation, protocol translation). | Choose only if firmware execution or multi-protocol support is required; significantly higher BOM cost and design complexity. |
Compared with ST25DV04K-IER, M24LR04E-RMN6T/2 offers smaller footprint and lower power I²C operation but lacks IRQ and advanced Fast commands; versus NXH3670UK, it provides simpler, lower-cost, EEPROM-integrated functionality without MCU overhead.
Availability
M24LR04E-RMN6T/2 is available at Aetrix Electronics and suitable for smart industrial labels, asset tracking tags, and energy-harvesting sensor nodes requiring stable component supply across automotive Tier-2, industrial IoT, and medical device manufacturing programs.
Supply support for M24LR04E-RMN6T/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, sensors, power ICs, and analog/mixed-signal products for industrial, automotive, and consumer markets.
The M24LR04E-RMN6T/2 belongs to the ST25 NFC/RFID tag family, engineered specifically for dual-interface, battery-free identification and data logging in harsh or space-constrained environments.
FAQ
What is the maximum I²C clock frequency supported by the M24LR04E-RMN6T/2?
The M24LR04E-RMN6T/2 supports Fast-mode I²C operation up to 400 kHz. This allows efficient local read/write access without compromising timing margins, and is compatible with most microcontrollers' hardware I²C peripherals. The interface includes built-in timeout protection to prevent bus lockup during communication errors.
How does the RF WIP/BUSY pin function, and can its behavior be changed?
The RF WIP/BUSY pin is user-configurable via the Control Register to indicate either "RF Write In Progress" (active-low during RF write operations) or "RF Busy" (active-low whenever the tag is responding to any RF command). Configuration is retained across power cycles and requires an I²C write to the control register before RF use.
Does the M24LR04E-RMN6T/2 require external tuning components for the RF antenna?
No external tuning capacitors are required. The device integrates a 27.5 pF internal tuning capacitance between AC0 and AC1 pins, simplifying antenna design and reducing bill-of-materials. Designers still need to match the external LC tank (antenna coil + optional series capacitor) to achieve optimal 13.56 MHz resonance and field sensitivity.
What is the difference between I²C password protection and RF sector password protection?
I²C uses a single global password (stored in dedicated I²C_Write_Lock area) to enable write access to the entire 512-byte I²C memory space. RF mode implements per-sector (32-bit block) passwords-each of the 128 blocks can be individually locked with its own 4-byte password, allowing granular access control for multi-user or multi-application deployments.
M24LR04E-RMN6T/2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-SOIC
M24LR04E-RMN6T/2 FAQ
1.How can I place an order for M24LR04E-RMN6T/2 through Aetrix?
Please submit a Request for Quotation (RFQ) for M24LR04E-RMN6T/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 M24LR04E-RMN6T/2 reliable?
The price and inventory of M24LR04E-RMN6T/2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24LR04E-RMN6T/2 is usually 5 days.
3.What payment methods are accepted for M24LR04E-RMN6T/2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24LR04E-RMN6T/2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24LR04E-RMN6T/2?
M24LR04E-RMN6T/2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24LR04E-RMN6T/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 M24LR04E-RMN6T/2?
For technical support, including M24LR04E-RMN6T/2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24LR04E-RMN6T/2 requirements.
6.How does Aetrix verify that M24LR04E-RMN6T/2 is sourced from the original manufacturer or authorized distributors?
All M24LR04E-RMN6T/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 M24LR04E-RMN6T/2 meets industry standards.
7.What is the process for return or replacement of M24LR04E-RMN6T/2?
All M24LR04E-RMN6T/2 units undergo pre-shipment inspection (PSI). If there is an issue with M24LR04E-RMN6T/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 M24LR04E-RMN6T/2 part is unused and in its original packaging.
Return procedure for M24LR04E-RMN6T/2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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