Roxtron — RFID & NFC datasheet library
HF 13.56 MHzI²C dual interfaceSTMicroelectronics

M24LR04E-R

The STMicroelectronics M24LR04E-R is an HF 13.56 MHz RFID tag IC, with 4 Kbit (512 bytes) EEPROM, operating at 13.56 MHz, under ISO/IEC 15693 ISO/IEC 18000-3 mode 1.

Dual-interface I2C + RF 13.56MHz ISO 15693

Official Datasheet ↗
Frequency
13.56 MHz
Protocol
ISO/IEC 15693, ISO/IEC 18000-3 mode 1
Memory
4 Kbit (512 bytes) EEPROM
Interface
Dual interface: I2C (400 kHz, 1 MHz) and RF (contactless 13.56 MHz)
Temp Range
-40°C to +85°C
Form Factor
SO8, TSSOP8, UFDFPN8

Full Specifications

ManufacturerSTMicroelectronics
Frequency CategoryHF 13.56 MHz
Frequency13.56 MHz
ProtocolISO/IEC 15693, ISO/IEC 18000-3 mode 1
Memory4 Kbit (512 bytes) EEPROM
InterfaceDual interface: I2C (400 kHz, 1 MHz) and RF (contactless 13.56 MHz)
Temperature Range-40°C to +85°C
Form FactorSO8, TSSOP8, UFDFPN8
Security32-bit password protection, write protection

Engineering Brief

The M24LR04E-R is a dual-interface EEPROM combining I2C wired communication with 13.56 MHz RF contactless access via ISO 15693 protocol. It provides 4 Kbit of EEPROM accessible through either interface, enabling applications where devices can be configured via I2C during manufacturing and read/updated wirelessly in the field. The chip features energy harvesting capability from the RF field, password protection for secure access, and operates across industrial temperature range, making it ideal for sensor tags, device configuration, and product authentication applications.

Typical Applications

Standards & Compliance

Frequently Asked Questions

What is the memory size of the M24LR04E-R?

The M24LR04E-R has 4 Kbit (512 bytes) of EEPROM memory that can be accessed through either the I2C interface or the 13.56 MHz RF interface.

What communication interfaces does the M24LR04E-R support?

The M24LR04E-R is a dual-interface chip supporting both wired I2C communication (at 400 kHz or 1 MHz) and contactless RF communication at 13.56 MHz using ISO 15693 protocol.

Does the M24LR04E-R support energy harvesting?

Yes, the M24LR04E-R features energy harvesting capability from the 13.56 MHz RF field, allowing it to power itself during contactless operations without an external power source.

What security features does the M24LR04E-R have?

The M24LR04E-R includes 32-bit password protection for secure access control and write protection features to prevent unauthorized memory modification.

Is the M24LR04E-R compatible with ISO 15693 readers?

Yes, the M24LR04E-R is fully compatible with ISO 15693 and ISO/IEC 18000-3 mode 1 standards, allowing it to work with standard 13.56 MHz HF RFID readers supporting these protocols.

What is a typical use case for the M24LR04E-R dual interface?

The M24LR04E-R is ideal for applications requiring factory configuration via I2C and field updates via RF, such as sensor tags where parameters are set during manufacturing and data is read wirelessly during deployment.

Explore

Manufacturer
All STMicroelectronics chips →
Standards
Applications

Cross-manufacturer alternatives

Sourcing STMicroelectronics M24LR04E-R in volume?

Roxtron builds custom RFID and NFC products around the M24LR04E-R — smart cards, labels, wristbands, key fobs and industrial tags. Tell us your project and we'll come back within 24 hours with pricing and lead times.

Get a quote

Similar Chips