ST25R3914-AQFT RF/IF and RFID

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ST25R3914-AQFT is a family of RFID, RF access, and monitoring ICs, developed to leverage RF and secure NFC connectivity for various applications. The ST25R3914-AQFT line of products supports various security options, including authentication, counting, tamper alert, and privacy features, to protect user data and business information.

In addition to RFID, RF access, and monitoring applications, the ST25R3914-AQFT can be used for a wide range of IoT and connected applications. These include smart card readers, mobile commerce, near field communication (NFC) applications, and remote keyless entry. The versatile digital system enables integration of multiple analog and digital interfaces, including NFC, EMVCo, ISO 14443, and Type A&B.

The ST25R3914-AQFT application field includes device manufacturers, smart access, authentication, automotive, mobile, and NFC. It enables fast and secure communications with readers, and provides multiple security options to protect user data and business information. The device features a 32-bit ARM Cortex®-M0 core and CryptoCell-312 cryptographic co-processor, optimizing data capture from multi-type RFID cards and tags.

The working principle of the ST25R3914-AQFT is based on the concept of contactless data exchange. This involves the sending and receiving of data without the need for physical contact between the device and the RF medium. The device supports up to 8KB of programmable ROM code and up to 2KB of RAM for secure authentication and memory data exchange. The device also supports multiple interfaces, including SPI, UART, and I2C.

The ST25R3914-AQFT protocol stack supports Bluetooth LE, NFC and ISO14443 Type A and B, which makes the device suitable for applications in smart access, authentication, automotive, mobile, and NFC. The system includes AES-128/256 encryption module for secure transmission of data. The device also supports a wide range of RFID protocols, such as EMVCo, Mifare, and FeliCa.

The ST25R3914-AQFT family of products includes an integrated antenna driver, status indicator, and RF detection circuitry. The integrated antenna driver supports up to 5W of RF power in most frequencies. The integrated RF detection circuit can detect RF field strength, allowing the device to adjust its functionality accordingly.

In addition, the ST25R3914-AQFT includes a configurable pulse width modulation (PWM) and analog-to-digital converter (ADC). The PWM module can be set to generate signals with various frequencies and duty circles, while the ADC can be used for measuring signal levels. The ADC also supports an integrated temperature sensor, enabling temperature monitoring in applications.

The ST25R3914-AQFT supports integrated tamper detection and measurement, which can be used to detect and notify tampering activities. This feature can be used for system protection, such as secure access control and authentication of personnel. The device also supports secure programming of user data with an integrated on-board encryption engine.

Overall, the ST25R3914-AQFT family of products provides a reliable and secure platform for RFID, RF access, and monitoring applications. The device is suitable for a wide range of IoT and connected applications, including smart card readers, mobile commerce, NFC applications, and remote keyless entry. The device provides multiple security features, including authentication, counting, tamper alert, and privacy features, to protect user data and business information.

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