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Home » NEWEST Products » New by Manufacturer » ams » AS3953 NFC Interface IC (NFiC) - ams
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ams AS3953 NFC Interface IC (NFiC)

ams AS3953 NFC Interface IC (NFiC)

ams 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 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. The AS3953 is used with an appropriate antenna coil connected to the terminals LC1 and LC2, and behaves as a normal passive ISO 144443A tag (PICC). After the anti-collision protocol is passed, the PCD sends a Wake-up command, which wakes up the microcontroller by sending an interrupt. From this point onwards, the AS3953 serves as a data link between the microcontroller and the PCD. AS3953 can also operate as NFCIP-1 target at 106 kb/s.

Features
  • ISO 14443A compliant to Level-4
  • NFCIP-1 target at 106 kb/s
  • 1k bit EEPROM (928 bits of user memory)
  • Configurable wake-up interrupt (after tag is selected or using proprietary command)
  • Powered from external magnetic field with the possibility to 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) with 32 byte FIFO
  • Wide SPI power supply range (1.65V to 3.6V)
  • Wide temperature range: -40ºC to 85ºC
  • Available as WLCSP 10-bumps
Applications
  • Passive Wake-Up
  • Multipurpose HF Interface to a Controller
  • Low Power or Passive Programming
  • Ultra Low Power Data Logger
  • RFID Programmable Configuration EEPROM
  • ISO 14443A Smart Card
  • NFC Forum Tag Type 4
  • Bluetooth and Wi-Fi Pairing
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