STMicroelectronics M24LR04E Dynamic NFC Tags

STMicroelectronics M24LR04E Dynamic NFC Tags are NFC/RFID tag ICs with a dual-interface, Electrically Erasable Programmable Memory (EEPROM). The STMicroelectronics M24LR04E features an I²C interface, and the devices can be operated from a V_CC power supply. The M24LR04E is also a contactless memory powered by the received carrier electromagnetic wave. These are organized as 512 × 8 bits in the I²C mode and 128 × 32 bits in RF mode. The tags feature an energy-harvesting analog output and a user-configurable digital output pin toggling during either RF write-in progress or RF busy mode.

Features

I²C interface
- Two-wire I²C serial interface supports 400kHz protocol
- Single supply voltage: -1.8V to 5.5V
- Byte and Page Write (up to 4 bytes)
- Random and Sequential read modes
- Self-timed programming cycle
- Automatic address incrementing
- Enhanced ESD/latch-up protection
- I²C timeout
Contactless interface
- ISO 15693 and ISO 18000-3 mode 1 compatible
- 13.56MHz ±7k Hz carrier frequency
- To tag: 10% or 100% ASK modulation using 1/4 (26Kbit/s) or 1/256 (1.6Kbit/s) pulse position coding
- From tag: load modulation using Manchester coding with 423kHz and 484kHz subcarriers in low (6.6kbit/s) or high (26kbit/s) data rate mode
- Supports the 53kbit/s data rate with fast commands
- Internal tuning capacitance: 27.5pF
- 64-bit unique identifier (UID)
- Read Block & Write (32-bit blocks)

Digital output pin
- User configurable pin: RF write in progress or RF busy mode
- Energy harvesting
- Analog pin for energy harvesting
- 4 sink current configurable ranges
Memory
- 4-Kbit EEPROM organized into 512 bytes in I²C mode and 128 blocks of 32-bits in RF mode
- Write time: I²C: 5ms (max.) / RF: 5.75ms including the internal verify time
- More than 1 million write cycles
- More than 40-year data retention
- Multiple password protection in RF mode
- Single password protection in I²C mode