The AS3953 delivers low cost, ultra low power NFC forum functionality to multiple different applications.

The AS3953 is a analog front-end with integrated 14443A data framing and SPI interface. It is designed to create a fast data link between an ISO14443A reader device (PCD) and a microcontroller. The AS3953 is Passively powered meaning that it can be supplied from the PCD magnetic field, eliminating the need of a continual external supply. This makes the AS3953 perfect for wireless communication to a low power battery powered device.