STMicroelectronics NFC Reader Chips and Discovery Kits give designers one step ahead of developing faster, more efficient non-connected applications

STMicroelectronics Discovery Kit ST25R3911B-DISCO integrates ST25R3911B NFC reader chip and STM32L476RE ultra-low-power microcontroller to shorten the development cycle of non-connected applications, achieve excellent communication distance, speed and energy efficiency, with simplified design and lower Material cost. The Discovery Kit board provides designers with an RF circuit layout reference design that uses the additional STM32 microcontroller software to quickly power up the board for use as an HF reader or NFC-initiated device.

At the heart of ST's new Discovery Suite, the ST25R3911B NFC Reader Chip provides designers with product differentiation capabilities that simplify functional integration, streamline product manufacturing, and ensure a superior user experience. The power consumption optimization function of the reader chip is also excellent, including dynamic power output, which provides the minimum power required for the initiating device to communicate with the receiving device, thereby avoiding waste of power. This energy saving feature is important for portable devices and payment terminals. Advantage. Capacitor wake-up function can detect the presence of the card, sleep mode power consumption is less than 5μA, which helps to save the battery power of the device, for example, the hotel room card reader. The reader chip also supports inductor wake-up.

The RF receiver of the ST25R3911B is approximately five times more sensitive than a normal receiver, while the output power of up to 1.4W extends read and write distances without the need for additional amplifiers. Automatic Antenna Tuning (AAT) allows OEMs to efficiently fine tune the antenna settings of end devices on the production line. In addition, the ST25R3911B is the only microcontroller on the market that can implement ultra-high bit rate (VHBR) communication single-chip solutions, increasing the download rate from 848kbit/s to 6.8Mbit/s, making it an e-government system such as passports and other applications. The best choice.

Relevant ST25R series products

Author：Brittany Antonia （The author of article owns the copyright.）