ST25R501-HMWT CCC digital key Automotive NFC reader for door handle in 4x4mm QFN

The ST25R501 is a very small and powerful automotive grade high-performance CCC DK NFC reader device housed in a QFN 4x4 mm wettable flank package. Designed for CCC (Car Connectivity Consortium®) digital key applications, the device enables fast product development for car access/start applications in areas like door handles or center consoles.

Being very robust and noise tolerant while at the same time reducing electromagnetic emission, the device works even under harsh conditions, supporting a smoother certification process for electromagnetic immunity and electromagnetic emission.

The device includes an advanced analog front end (AFE) and a highly integrated data framing system for NFC-A/B (ISO/IEC 14443A/B) reader, including higher bit rates up to 848 kbps, NFC-F (FeliCa™) reader and NFC-V (ISO/IEC 15693) reader up to 212 kbps.

The device features high RF power with dynamic power output to directly drive antennas at high efficiency, achieving large interaction distances even with small antenna sizes common indoor handles.

The device includes additional features, making it incomparable for low-power applications. It offers low-power card detection by performing a measurement of the I and Q channel, which represent the real and imaginary parts of the antenna signal.

It meets the most demanding requirements put in place by car and phone OEMs, delivering market-leading performance and ensuring a superior user experience.

It is designed to operate from a wide power supply range (from 2.7 V to 5.5 V), ambient temperature range from -40°C to +125°C, and a wide peripheral I/O voltage range (from 1.65 V to 5.5 V). Due to this combination of high RF output power, low-power modes, wide supply range, and AEC-Q100 grade 1 qualification, the device is perfectly suited for automotive applications.