AS3953 - austria microsystems

AS3953 14443 High Speed Passive Tag Interface

The AS3953 NFC interface IC (NFiC) 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 ISO 14443A reader device (PCD) and a microcontroller. The AS3953 is Passively powered mea.

Features

ISO 14443A compliant to
NFCIP-1 Level-4 target at 106 kb/s tag is selected or using with the possibility to
1k bit EEPROM (928 bits of user memory)
Configurable wake-up interrupt (after proprietary command)
Powered from external magnetic field draw up to 5mA
7 byte UID
User configurable regulated voltage extracted from external magnetic field
Bit rates from 106 Kbps till 848 Kbps
Integrated resonant capacitor
Integrated buffer capacitor
4-wire Serial Peripheral Interface (SPI)
Wide
Wide case the SPI side is not powered) and it is later read by microcontroller t.