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General Description
AS3955
NFC Forum Compliant Dynamic Tag
AS3955 NFC Dynamic Tag IC is the ultimate solution to easily add NFC functionality to electronic devices. Thanks to a high sensitivity ISO14443A frontend and high integrated resonance capacitor, AS3955 offers standalone NFC passive tag functionality in a small footprint. Fast system integration and high speed data transfer are guaranteed by the available SPI and I²C interfaces and by the optimized protocols (Tunneling Mode and Extended Mode), allowing bidirectional communication between the device microcontroller and an external NFC compliant device or ISO14443A reader device (PCD).
AS3955 is able to operate fully powered by the RF field, without any external supply.