ST25R3916B-AQWT屬于RF/IF射頻/中頻RFID的RFID射頻接入監(jiān)控IC。由意法半導(dǎo)體集團制造生產(chǎn)的ST25R3916B-AQWTRFID，射頻接入，監(jiān)控 ICRFID 或射頻接入監(jiān)控 IC 是配置為射頻識別 (RFID) 讀取器、應(yīng)答器、無源接入/無源啟動處理器和輪胎壓力監(jiān)測系統(tǒng) (TPMS) 的半導(dǎo)體器件。這些器件的設(shè)計符合 EPC、ISO、NFC、MiFARE 和 FeliCa 等特定 RFID 標(biāo)準(zhǔn)，并通過 I2C、SPI、UART、USB、PWM、RS232、RS422、RS485 及其他接口進行通信。

特性 Features

? Operating modes

– Reader/writer

– Card emulation

– Active and passive peer to peer

? RF communication

– EMVCo? 3.1a 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 (106 kbit/s) and

NFC-F / FeliCa? (212/424 kbit/s) 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 overand

under-shoots

– Noise suppression receiver (NSR) allows

reception in noisy environment

– Automatic antenna tuning (AAT) via

variable capacitor

– Integrated EMVCo? 3.1a compliant EMD

handling

– Automatic gain control and squelch feature

to maximize SNR

– Low power NFC active and passive target

modes

– Adjustable ASK modulation depth, from 0

to 82

– 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

The ST25R3916B and ST25R3917B devices are suitable for a wide range of NFC and HF

RFID applications, among them

? NFC Forum compliant NFC universal device

? EMVCo 3.1a compliant contactless payment terminal

? ISO14443 and ISO15693 compliant general purpose NFC device

? FeliCa? reader / writer

? Support all five NFC Forum Tag types in reader mode

? Support all common proprietary protocols, such as Kovio, CTS, B’.