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NFCI²C dual interfaceSTMicroelectronics

M24SR64-Y

The STMicroelectronics M24SR64-Y is an NFC tag IC, with 64 Kbit (8 KB) EEPROM user memory, operating at 13.56 MHz, under ISO/IEC 14443-A, NFC Forum Type 4 ISO/IEC 15693.

Dynamic NFC/RFID tag IC with 64-Kbit EEPROM and dual interface

Official Datasheet ↗
Frequency
13.56 MHz
Protocol
ISO/IEC 14443-A, NFC Forum Type 4, ISO/IEC 15693
Memory
64 Kbit (8 KB) EEPROM user memory
Interface
RF (contactless NFC), I2C
Temp Range
-40°C to +85°C
Form Factor
TSSOP8, UFDFPN8, SO8

Full Specifications

ManufacturerSTMicroelectronics
Frequency CategoryNFC
Frequency13.56 MHz
ProtocolISO/IEC 14443-A, NFC Forum Type 4, ISO/IEC 15693
Memory64 Kbit (8 KB) EEPROM user memory
InterfaceRF (contactless NFC), I2C
Temperature Range-40°C to +85°C
Form FactorTSSOP8, UFDFPN8, SO8
SecurityRF disable function, I2C password protection, read/write protection

Engineering Brief

The M24SR64-Y is a dual-interface dynamic NFC tag IC featuring 64 Kbit of EEPROM accessible via both 13.56 MHz NFC/RFID (ISO 14443-A Type 4 and ISO 15693) and I2C interfaces simultaneously. The chip supports energy harvesting from the RF field, allowing battery-free operation for contactless applications while maintaining I2C connectivity for host processor integration. It includes configurable memory access rights, password protection, and an RF management feature that enables the host to control wireless access, making it ideal for secure IoT applications requiring both wireless provisioning and wired system integration.

Typical Applications

Standards & Compliance

Frequently Asked Questions

What memory capacity does the M24SR64-Y have?

The M24SR64-Y features 64 Kbit (8 KB) of EEPROM user memory accessible via both NFC/RFID and I2C interfaces.

What interfaces does the STMicroelectronics M24SR64-Y support?

The M24SR64-Y has dual interfaces: contactless NFC/RFID at 13.56 MHz (ISO 14443-A Type 4 and ISO 15693) and wired I2C, both accessible simultaneously.

Does the M24SR64-Y support energy harvesting?

Yes, the M24SR64-Y supports energy harvesting from the 13.56 MHz RF field, enabling battery-free operation for contactless applications.

What security features are available on the M24SR64-Y?

The M24SR64-Y includes I2C password protection, configurable read/write memory protection, and an RF disable function that allows the host processor to control wireless access.

Is the M24SR64-Y compatible with NFC smartphones?

Yes, the M24SR64-Y is NFC Forum Type 4 compliant and supports ISO 14443-A, making it compatible with NFC-enabled smartphones and readers.

Can the M24SR64-Y be accessed wirelessly and via I2C at the same time?

Yes, the M24SR64-Y is a dynamic tag IC that allows simultaneous access to the EEPROM memory via both the RF interface and I2C bus.

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