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AS3953 - 14443 High Speed Passive Tag Interface

General Description

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.

Key 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 cap.

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Datasheet Details

Part number AS3953
Manufacturer austria microsystems
File Size 700.57 KB
Description 14443 High Speed Passive Tag Interface
Datasheet download datasheet AS3953 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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A S3 9 5 3 1 44 4 3 H i g h S p e e d P a s s i v e Ta g I n te r fa c e 1 General Description 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 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 lowpower battery powered device.