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STMicroelectronics M24SR02-YMC6T/2
- Part No.:
- M24SR02-YMC6T/2
- Manufacturer:
- STMicroelectronics
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
M24SR02-YMC6T/2.pdf
- Description:
- IC RFID TRANSP 13.56MHZ 8UFDFPN
- Quantity:
- Payment:
- Shipping:
Inventory:2,912
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Product details
Overview
M24SR02-YMC6T/2 from STMicroelectronics is a dynamic NFC/RFID tag IC with dual I²C and contactless interfaces, embedding 2-Kbit EEPROM compliant with NFC Forum Type 4 Tag and ISO/IEC 14443 Type A. It operates from 2.7 V to 5.5 V, supports 1 MHz I²C, delivers 246-byte read/write bursts, and features 7-byte UID and 128-bit password protection. Used in secure smart labels for industrial asset tagging and NFC-enabled IoT sensor nodes.
For engineers reviewing the M24SR02-YMC6T/2 datasheet, M24SR02-YMC6T/2 pinout, M24SR02-YMC6T/2 application, or M24SR02-YMC6T/2 equivalent, this page provides verified functional modes (I²C mode, Tag mode, Dual interface mode), GPO configuration options, RF disable control, memory access rights, and NDEF file management - all critical for secure embedded NFC system integration.
Technical Context
The M24SR02-YMC6T/2 implements a dual-interface architecture where the I²C slave interface (address 0x50) and RF interface operate independently but share the same EEPROM memory space. Session arbitration between I²C and RF is enforced via token-based mutual exclusion, preventing concurrent access conflicts.
Its RF protocol stack fully complies with NFC Forum Type 4 Tag v2.0, supporting ISO/IEC 7816-4 APDUs and ST-proprietary commands (e.g., StateControl, SendInterrupt). The GPO pin supports seven configurable states including RF busy indication, I²C answer ready, and WIP status signaling - enabling hardware-level event notification without polling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| I²C Interface | Two-wire slave interface, 1 MHz max clock rate; enables direct microcontroller connection without level-shifting in 2.7–5.5 V systems. |
| RF Protocol | NFC Forum Type 4 Tag & ISO/IEC 14443 Type A; interoperable with smartphones and standard RFID readers at 106 Kbps. |
| EEPROM Size | 256 bytes (2-kbit); organized as NDEF, Capability Container, and System files - directly hostable by Android NFC apps. |
| Data Retention | 200 years at 25 °C; ensures long-term integrity of firmware metadata or calibration data stored in industrial equipment tags. |
| Write Endurance | 1 million cycles at 25 °C; sufficient for daily firmware update logging in edge gateways over 10+ years. |
| UID Length | 7-byte unique identifier; provides cryptographically distinct device identity for secure provisioning and anti-cloning. |
| GPO Configurations | 7 modes (e.g., RF busy, I²C answer ready, WIP); eliminates software polling overhead in real-time NFC interaction workflows. |
Pinout & Package
Package: 8-lead TSSOP8 (ECOPACK2), pin-compatible with SO8 and UFDFPN8 variants. Lead-free, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Supply voltage input | 2.7–5.5 V single supply; powers both I²C logic and RF front-end; internal regulator stabilizes RF analog circuitry. |
| VSS | Ground reference | Digital and RF ground shared; requires low-impedance PCB return path to minimize coupling noise into AC0/AC1 antenna lines. |
| SCL | I²C clock input | Master-generated clock; supports standard/fast-mode timing; internal pull-up not provided - external 4.7 kΩ required. |
| SDA | I²C bidirectional data | Open-drain I/O; shares bus with other I²C slaves; ACK/NACK handled automatically per I²C spec. |
| AC0 / AC1 | Antenna coil terminals | Differential RF interface; connects to 13.56 MHz LC tank (typically 1 µH + 25 pF internal capacitance); no external tuning needed. |
| RF Disable | Active-low RF enable control | Pulls low to disable RF field detection and communication; allows deterministic I²C-only operation during firmware updates. |
| GPO | Configurable general-purpose output | Programmable open-drain output; signals session state changes (e.g., "I²C answer ready") to host MCU without interrupt latency. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-interface session arbitration | Hardware-enforced token exchange prevents simultaneous I²C and RF access to EEPROM - eliminates risk of memory corruption. |
| NDEF-compliant memory layout | Predefined CC and NDEF file structure enables plug-and-play compatibility with Android Beam and NFC tools without custom driver development. |
| 128-bit password protection | Separate read/write passwords per NDEF file; supports multi-tier access control for OEM firmware vs. end-user data partitions. |
| RF disable pin | Hardwired RF shutdown capability; meets functional safety requirements for NFC subsystem isolation during critical boot sequences. |
| GPO-driven state signaling | Seven programmable output modes reduce host MCU polling load by >90% in high-frequency NFC interaction scenarios. |
Applications
| Smart Industrial Labels | Secure Firmware Update Tags |
|---|---|
|
Use Scenario: Asset tags on factory floor machinery store calibration data, maintenance logs, and serial numbers accessible via NFC phone scan. IC Role / Device Role / Timing Role: Dynamic NFC tag IC providing authenticated, write-protected memory storage with dual-interface flexibility for offline and online updates. Use Value: Eliminates manual data entry errors; enables traceability across production shifts using consumer-grade NFC devices without dedicated readers. |
Use Scenario: Tamper-evident firmware update tokens shipped with medical devices, allowing field technicians to verify and install signed firmware patches. IC Role / Device Role / Timing Role: Secure NDEF container hosting cryptographic signatures and version metadata; accessed only after successful password verification. Use Value: Prevents unauthorized firmware modification while enabling zero-touch update validation - meeting IEC 62304 Class C software distribution requirements. |
| IoT Sensor Node Identity | NFC-Enabled Access Control Cards |
|
Use Scenario: Wireless sensor nodes embed M24SR02-YMC6T/2 to store unique device identity, sensor type, and calibration coefficients readable during commissioning. IC Role / Device Role / Timing Role: I²C-connected identity module with RF backup; allows rapid node onboarding via smartphone scan or direct MCU read during boot. Use Value: Reduces commissioning time from minutes to seconds; supports automated BOM reconciliation and firmware version matching in large-scale deployments. |
Use Scenario: Physical access cards used in enterprise buildings store encrypted credential data and audit logs updated via NFC-enabled kiosks. IC Role / Device Role / Timing Role: Contactless tag IC with password-protected NDEF files; supports incremental log writes and secure credential revocation via RF commands. Use Value: Enables real-time credential lifecycle management without card reissuance; maintains full audit trail within tamper-resistant EEPROM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dynamic NFC tag applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NT3H2111W0FHKH | 1-Kbit EEPROM, no I²C interface; RF-only with integrated 13.56 MHz receiver and wake-up logic. | Lacks dual-interface capability; suitable only for passive NFC reader applications without host MCU coordination. | Select when system requires ultra-low-power wake-on-field operation and does not need synchronized I²C updates. |
| M24SR64-YMC6T/2 | 64-Kbit EEPROM, identical pinout and command set; same GPO, RF disable, and security features. | Supports larger NDEF messages (e.g., firmware images, certificates); higher write endurance (400k cycles at 85 °C). | Select when >256-byte payload capacity is required for certificate chains or multi-language localization data. |
Compared with NT3H2111W0FHKH, M24SR02-YMC6T/2 adds deterministic I²C control for synchronized host-initiated updates; compared with M24SR64-YMC6T/2, it trades capacity for cost-sensitive deployments where 256-byte NDEF suffices for device identity and basic metadata.
Availability
M24SR02-YMC6T/2 is available at Aetrix Electronics and suitable for industrial asset tagging, secure firmware update tokens, and IoT sensor node identity management requiring stable component supply across multi-year production cycles.
Supply support for M24SR02-YMC6T/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 specializing in secure microcontrollers, power management, and connectivity solutions for industrial, automotive, and IoT markets.
M24SR02-YMC6T/2 belongs to the ST25 NFC/RFID product line, designed specifically for secure, dual-interface data exchange between embedded systems and NFC-enabled mobile devices - targeting applications demanding both local MCU control and remote wireless access.
FAQ
What is the maximum I²C clock frequency supported by M24SR02-YMC6T/2?
The M24SR02-YMC6T/2 supports I²C Fast Mode Plus with a maximum clock frequency of 1 MHz. This allows high-speed data transfer up to 246 bytes per ReadBinary/UpdateBinary command, reducing transaction time in bandwidth-constrained embedded systems. Timing parameters are guaranteed across the full –40 °C to +85 °C operating range per DS9985 Rev 12 Section 11.
How does the RF disable pin function during I²C operations?
The RF disable pin (active-low) physically disconnects the RF front-end from the antenna terminals (AC0/AC1) when asserted, eliminating electromagnetic interference with nearby I²C signals. When held low, the device remains fully responsive to I²C commands while ignoring all RF field activity - ensuring deterministic behavior during critical firmware writes or security key loading sequences.
Can the GPO pin be used to signal completion of an RF write operation?
Yes - when configured in "MIP NDEF Message writing in Progress" mode (GPO field = 0x3X), the GPO pin transitions from high to low upon RF write initiation and returns high upon successful completion. This hardware handshake eliminates software polling and enables precise timing synchronization between host MCU actions and RF transaction finalization, as defined in DS9985 Rev 12 Section 2.7.4.
Is the 7-byte UID factory-programmed and permanently locked?
Yes - the 7-byte UID is laser-trimmed during wafer test and permanently stored in ROM. It cannot be altered, erased, or overwritten through any I²C or RF command. This immutable identity serves as the root of trust for device authentication and is referenced in all NDEF and system file operations per DS9985 Rev 12 Section 9 and Table 1.
M24SR02-YMC6T/2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- RFID Transponder
- Frequency:
- 13.56MHz
- Standards:
- ISO 14443, NFC
- Interface:
- I2C
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-UFDFPN (2x3)
M24SR02-YMC6T/2 FAQ
1.How can I place an order for M24SR02-YMC6T/2 through Aetrix?
Please submit a Request for Quotation (RFQ) for M24SR02-YMC6T/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 M24SR02-YMC6T/2 reliable?
The price and inventory of M24SR02-YMC6T/2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24SR02-YMC6T/2 is usually 5 days.
3.What payment methods are accepted for M24SR02-YMC6T/2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24SR02-YMC6T/2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24SR02-YMC6T/2?
M24SR02-YMC6T/2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24SR02-YMC6T/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 M24SR02-YMC6T/2?
For technical support, including M24SR02-YMC6T/2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24SR02-YMC6T/2 requirements.
6.How does Aetrix verify that M24SR02-YMC6T/2 is sourced from the original manufacturer or authorized distributors?
All M24SR02-YMC6T/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 M24SR02-YMC6T/2 meets industry standards.
7.What is the process for return or replacement of M24SR02-YMC6T/2?
All M24SR02-YMC6T/2 units undergo pre-shipment inspection (PSI). If there is an issue with M24SR02-YMC6T/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 M24SR02-YMC6T/2 part is unused and in its original packaging.
Return procedure for M24SR02-YMC6T/2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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