NXP Semiconductors NTP5312 & NTP5332 NTAG® 5 Link

The NTP5312 enables designers of sensor-equipped systems to add an NFC interface with a wired host interface that’s configurable as a pulse width modulator (PWM) or a general-purpose I/O (GPIO). The NTP5332 also offers I²C master features as well as AES mutual authentication.

The NTAG 5 Link ICs can act as a direct bridge between an NFC-enabled device and any I²C slave, such as a sensor or external memory. This is especially useful in environments that require zero-power, single-shot measurements.

With NTAG 5 Link, the device can connect to the cloud with a single tap. The connection uses an NFC Forum-compliant data exchange mechanism involving SRAM to ensure highly interoperable data transfers.

The NTP5312 and NTP5332 include 2048 bytes of memory, which can be divided into three areas. Each area can use a different protection level, varying from no protection to 32-bit and 64-bit, password-protected read/write access. The NTP5332 allows up to 128-bit-AES protected read/write access with mutual authentication. Different parties in the value chain can have their own dedicated memory areas for data storage.

The NTAG 5 Link ICs come with pre-programmed proof-of-origin functionality to verify authenticity. The reprogrammable Elliptic Curve Cryptography (ECC) originality signature can be locked or reprogrammed by the customer.

The NTP5312 and NTP5332 harvests energy from NFC Readers, enabling it to operate without a battery. These devices can also be used to supply power to other components in the system. When sufficient energy is available, the NTAG 5 Link can supply a fixed, configurable voltage level to ensure a stable overall system.