ams AS3953B
The AS3953B NFC interface IC (NFiC) delivers low cost, ultra low power NFC forum functionality to multiple different applications. The AS3953B 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.| Part No. | AS3953B |
|---|---|
| Datasheet | AS3953B Download |
| Manufacturer |  ams |
| Description | 14443 High Speed Passive Tag Interface |
| Buy | Stock & Price |
GENERAL DESCRIPTION
ams Datasheet [v1-04] 2016-Jan-07 AS3953B 14443 High Speed Passive Tag Interface The AS3953B 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 AS3953B perfect for wireless communication to a low-power battery powered device. The AS3953B 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 AS3953B serves as a data link between the microcontroller and the PCD. AS3953B can also operate as NFCIP-1 target at 106kbit/s. The AS3953B includes an onboard EEPROM that can be accessed either from the PCD or from the microcontroller via the SPI interface. This built-in flexibility makes it ideal for two types of applications:● Where...
