ST25DV-PWM Dynamic NFC Tags STMicroelectronics ST25DV-PWM Dynamic NFC Tags are NFC/RFID tag ICs with PWM outputs that offer a 13.56MHz long-range interface compatible with NFC phones and readers. The PWM output is programmed independently and securely, and allows a large field of application. STMicroelectronics ST25DV-PWM Dynamic NFC Tags extend the user experience by providing live update of PWM parameters by a contactless interface.