Austrian Microsystems - High Speed Passive Tag Interface - 7 November 2012

New interface chip from ams drives down the cost of adding high data-rate NFC capability to microcontroller designs.

AS3953 NFiC® offers full bi-directional near field communication, while harvesting energy from RF emissions.

The device is ideal for applications like 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, and Bluetooth and Wi-Fi pairing.

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Datasheet

Key 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 with 32 byte FIFO
Wide SPI power supply range (1.65V to 3.6V)
Wide temperature range: -40°C to 85°C
Available as die, WL-CSP or in MLPD-10 (3x3mm) package

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