NFC 트랜시버 모듈 -ST25R95
(NFC 6 CLICK)
개요
- 본 제품은 NFC 트랜시버 모듈 -ST25R95 입니다.
- NFC 트랜시버 ST25R95칩을 기반으로 디자인된 제품입니다.
- 읽기/쓰기 동작 모드를 지원하며 ISO/IEC 14443-3 Type A 카드 에뮬레이션을 지원합니다.
- 13.56Mhz 로 동작합니다.
특징
- NFC 6 Click is a compact add-on board that contains an NFC transceiver for contactless communication. This board features the ST25R95, a near-field communication transceiver from STMicroelectronics. It supports reader and writer operating modes and emulates ISO/IEC 14443-3 Type A cards. The RF communications are done over the 13.56MHz. The transceiver features tag detection mode, field detection mode, transmission and reception modes, and more. This Click board™ makes the perfect solution for the development of applications based on NFC technology, contactless communication, payment systems, home and industrial automation, and more.
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HOW DOES IT WORK?
NFC 6 Click is based on the ST25R95, a near-field communication transceiver from STMicroelectronics. It manages frame coding and decoding in Reader and card emulation modes for standard applications such as near-field communication (NFC), proximity, and vicinity standards. The NFC transceiver supports ISO/IEC 14443 Type A communication in reader and card emulation modes and ISO/IEC 14443 Type B, ISO/IEC15693, and FeliCa in reader mode. The ST25R95 embeds an analog front end to provide the 13.56 MHz air interface and supports the detection, reading, and writing of NFC Forum Type 1, 2, 3, 4, and 5 tags.
There are two operating modes that ST25R95 supports: wait for event (WFE) and active mode. In active mode, the transceiver communicates actively with a tag or an external host, while the WFE mode includes four low-consumption states: power-up, hibernate, sleep/field detector, and tag detector.
NFC 6 Click uses a standard 4-wire SPI serial interface to communicate with the host MCU, supporting clock frequencies of up to 2MHz. There are two interrupt pins: interrupt input (II) and interrupt output (IO). The interrupt input allows you to control WFE events. When it is ready, the NFC transceiver returns a replay over the interrupt output by setting it to a Low logic level. It will remain Low until the host MCU reads the data. The application can use the Interrupt mode to skip the polling stage.
This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the V SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. Also, this Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used as a reference for further development.
SPECIFICATIONS
Type RFID/NFC Applications Can be used for the development of applications based on NFC technology, contactless communication, payment systems, home and industrial automation, and more On-board modules ST25R95 - near field communication transceiver from STMicroelectronics Key Features NFC/RFID card writer and reader, ISO/IEC 14443-3 Type A card emulation, dedicated internal frame controller, highly integrated analog front end (AFE) for RF communication, transmission and reception modes, optimized power management, tag detection mode, field detection mode, and more Interface SPI ClickID Yes Compatibility mikroBUS™ Click board size L (57.15 x 25.4 mm) Input Voltage 3.3V or 5V
문서
연관제품
- 연관제품 1