ST25R100-CMET

ST25R100-CMET is a NFC/HF RFID reader IC. This multipurpose NFC transceiver brings the convenience of contactless interaction and features to a variety of end applications. It is especially optimized for end products in consumer and industrial segments. The ST25R100 supports NFC reader/writer mode. The high output power allows easy integration into applications with small antennas. The reader has an excellent read range and comes with an improved low power card detection (LPCD), increasing detection range in inductive wake-up mode. During this low power wake-up mode, the system can detect the approach or the removal of tags. The IC contains an RC oscillator and programmable timer to automatically scan for cards or other NFC-enabled devices like a smartwatch or a phone when in WU mode. Applications include healthcare, access control, beauty and lifestyle, kitchen and home appliances, gaming and education, home automation and entertainment, industrial and tools, IoT.

• Reader/writer operating modes, RF communication
• Improved low power card detection based on inductive wake-up
• High output power with dynamic power output (DPO), 256-byte FIFO
• Option to connect two independent single-ended antennas, adjustable ASK modulation depth
• Automatic gain control and squelch feature to maximize SNR (signal-to-noise ratio)
• Integrated regulators to boost system PSRR, measurement of antenna characteristics (I/Q channels)
• Serial peripheral interface (SPI) up to 6Mbit/s, supply voltage range from 2.7 to 5.5V
• Antenna driver voltage range, up to 6VP
• Quartz oscillator capable of operating with 27.12MHz crystal with fast startup
• Operating temperature range from -25°C to 85°C, UFQFPN24 package