ST25R3917-AQWT

High performance NFC universal device and EMVCo reader

Parameters

Supply Voltage Min Volt	2.4
Supply Voltage Max Volt	5.5
Operating Temp Min Celsius	-40.0
Operating Temp Max Celsius	105.0
ECCN US	EAR99
ECCN EU	NEC
Packing Type	Tape And Reel
RoHs compliant	Ecopack2
Grade	Industrial
Package Name	VFQFPN 5X5X1 32L WETTABLE FLANKS

Description

The ST25R3916/7 are high performance NFC universal devices supporting NFC initiator, NFC target, NFC reader, and NFC card emulation modes when applicable.Being fully compliant with EMVCo 3.0 analog and digital, these NFC IC are optimized for POS terminal applications, and enable the fastest EMVCo...
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The ST25R3916/7 are high performance NFC universal devices supporting NFC initiator, NFC target, NFC reader, and NFC card emulation modes when applicable.

Being fully compliant with EMVCo 3.0 analog and digital, these NFC IC are optimized for POS terminal applications, and enable the fastest EMVCo 3.0 certification cycles possible, even under harsh conditions, with antenna around noisy LCD displays.

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 / NFC-F card emulation. The ST25R3917 offers a reduced feature set.

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

The ST25R3916/7 feature high RF output power to drive directly antennas at high efficiency.

The ST25R3916/7 include additional features, making them incomparable for low power applications. They contain 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 be detected by performing a measurement of the amplitude or phase of the antenna signal. They also contain a low power RC oscillator and wake-up timer, to automatically wake up the ST25R3916/7 after a selected time period, and check for the presence of a tag using one or more techniques of low power card detection (capacitive, phase, or amplitude).

The ST25R3916/7 are designed to operate from a wide power supply range (2.6 to 5.5 V from -40 °C to +105 °C, 2.4 to 5.5 V from -20 °C to +105 °C), and a wide peripheral IO voltage range (from 1.65 to 5.5 V).

Due to this combination of high RF output power, low power modes and wide supply range, these devices are perfectly suited for infrastructure NFC applications.

Key features

Key features
Operating modes Reader/writer Card emulation Active and passive peer to peer RF communication EMVCo 3.0 analog and digital compliant 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 Key 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 3.0 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, RSSI, on-chip supply and regulated voltages 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 Electrical characteristics Wide supply voltage and ambient temperature range (2.6 to 5.5 V from -40 °C to +105 °C, 2.4 to 5.5 V from -20 °C to +105 °C) Wide peripheral communication supply range, from 1.65 to 5.5 V Quartz oscillator capable of operating with 27.12 MHz crystal with fast start-up

In stock

Quantity	$ per unit	Savings
1-9	$5.98	2%
10-24	$4.61	21%
25-99	$4.42	25%
100-249	$3.85	34%
250-500	$3.66	38%
500 +	Contact sales

$5.98

$5.86

Replacement product

ST25R3917-AQET