EEPROM memory chip with embedded NFC interface supports the NFC Data Exchange Format
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The NFC / RFID tag memory chips contain three key blocks: a non-volatile memory (NVM) which retains its stored data even when its power supply is switched off; a wireless interface for communicating with other wireless devices, and a wired interface (industry-standard I2C) for communicating with the controller of the host equipment.
In the M24SR family, the NVM is implemented as EEPROM in sizes ranging from 2 to 64Kbit, covering all current market demands. The wireless interface is fully compatible with the ISO14443-A protocol that enables data rates up to 106kb/s, while the I2C interface operates at speeds up to 1MHz, ensuring fast data transfer between the smartphone and the target equipment.
The EEPROM memory bank is preformatted for NFC operation, supporting the NFC Data Exchange Format (NDEF), and uses the latest and most reliable EEPROM technology, with data retention guaranteed for 200 years, one million write-erase cycles, and 128-bit password protection for maximum security. Offered in SO8, TSSOP8 and MLP8 packages, the M24SR devices are now available in samples for OEM customers.
Visit STMicroelectronics at www.st.com
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