ST25R500-HQWT

ST25R500-HQWT is an automotive grade high-performance NFC universal device supporting NFC initiator, NFC target, NFC reader, and NFC card emulation modes. Designed for CCC (Car Connectivity Consortium®) digital key applications, the device enables fast product development for car access/start applications in areas like door handle or centre console, and enables additional functionality, like pairing or NFC card protection combined with a Qi charger. Being very robust and noise tolerant while at the same time reducing electromagnetic emission, the device works even under harsh conditions, enabling an easier certification. The device includes an advanced analogue front end (AFE) and a highly integrated data framing system for NFC‑A/B (ISO/IEC 14443A/B) reader, including higher bit rates, NFC-F (FeliCa™) reader, NFC-V (ISO/IEC 15693) reader up to 212 kbps, and NFC‑A/NFC‑F card emulation.

• Dynamic power output (DPO) controls field strength to stay within given limits (software feature)
• Active wave shaping (AWS) reduces both overshoots and undershoots
• Noise suppression receiver (NSR) allows reception in a noisy environment
• Serial peripheral interface (SPI) up to 10 Mbit/s
• Wide supply voltage range: 2.7V to 5.5V
• Wide peripheral communication supply range: 1.65 to 5.5V
• Wide ambient temperature range from -40°C to +125°C
• Quartz oscillator capable of operating with 27.12MHz crystal with fast startup
• Low-power card detection by performing a measurement of the I and Q channel
• AEC-Q100 qualified