ST25R3916 High-Performance NFC Universal Device and EMVCo Reader

Product Highlights > ST25R3916 High-Performance NFC Universal Device and EMVCo Reader

            ST25R3916 High-Performance NFC Universal Device and EMVCo Reader
                    STMicroelectronics' ST25R3916 features a high RF output power to directly drive antennas at high efficiency
    

Image of STMicroelectronics' ST25R3916 High-Performance NFC Universal Device and EMVCo Reader STMicroelectronics' ST25R3916 is a high-performance NFC universal device supporting NFC initiator, NFC target, NFC reader, and NFC card emulation modes.

The ST25R3916 includes an advanced analog front end (AFE) and a highly integrated data framing system for ISO 18092 passive and active initiator, ISO 18092 passive and active target, NFC-A/B (ISO 14443A/B) reader including higher bit rates, NFC-F (FeliCa™) reader, NFC-V (ISO 15693) reader up to 53 kbps, and NFC-A and NFC-F card emulation.

Special stream and transparent modes of the AFE and framing system can be used to implement other custom protocols such as MIFARE® classic in reader or card emulation mode.

The ST25R3916 features a high RF output power to directly drive antennas at high efficiency.

The ST25R3916 also includes several features which make it incomparable for low power applications. It contains a low power capacitive sensor to detect the presence of a card without switching on the reader field. Additionally, the presence of a card can still be detected by performing a measurement of the amplitude or phase of the antenna signal. It also contains a low power RC oscillator and wake-up timer to automatically wake-up the ST25R3916 after a selected period of time and check for a presence of a tag using one or more techniques of low power detection of card presence (capacitive, phase, or amplitude).

The ST25R3916 is designed to operate from a wide power supply range from 2.4 V to 5.5 V, and a wide peripheral IO voltage range from 1.65 V to 5.5 V.

Due to this combination of high RF output power, low power modes, and wide supply range the ST25R3916 is perfectly suited for infrastructure NFC applications.

Flyer: High-performance NFC Universal Device & EMVCo Reader

Features

Operating modes
- Reader/writer
- Card emulation
- Active and passive peer to peer
Hardware features
- Dynamic power output (DPO) controls the field strength to stay within given limits
- Active wave shaping (AWS) reduces over- and under-shoots
- Noise suppression receiver (NSR) allows reception in noisy environment
- Automatic antenna tuning (AAT) via variable capacitor
- Integrated EMVCo compliant EMD handling
- Automatic gain control and squelch feature to maximize SNR
- Low power capacitive and inductive card detection
- Low power NFC active and passive target modes
- Adjustable ASK modulation depth from 5% to 40%
- Integrated regulators to boost system PSRR
- AM/PM and I/Q demodulator with baseband channel summation or automatic channel selection
- Possibility to drive two independent single-ended antennas
- Measurement of antenna voltage amplitude and phase, driver current, RSSI, on-chip supply, and regulated voltages
- Up to 1.6 W differential output power

RF communication
- NFC-A/ISO14443A up to 848 kbit/s
- NFC-B/ISO14443B up to 848 kbit/s
- NFC-F/FeliCa up to 424 kbit/s
- NFC-V/ISO15693 up to 53 kb/s
- NFC-A/ISO14443A and NFC-F/FeliCa card emulation
- Active and passive peer to peer initiator and target modes up to 424 kbit/s
- Low-level modes to implement MIFARE classic compliant or other custom protocols
Electrical characteristics
- Wide supply voltage range from 2.4 V to 5.5 V
- Wide peripheral communication supply range from 1.65 V to 5.5 V
- Wide temperature range from -40°C to +125°C
- Quartz oscillator capable of operating with 27.12 MHz crystal with fast start-up
External communication interfaces
- 512 byte FIFO
- Serial peripheral interface (SPI) up to 10 Mbit/s
- I²C with up to 400 kbit/s in Fast-mode, 1 Mbit/s in Fast-mode Plus, and 3.4 Mbit/s in High-speed mode