Frequency: 13.56MHZ

Chip: NTAG213, NTAG215, NTAG216, domestic brand NFC chip, etc.

Protocol: ISO14443A

Size: 85.5*54.0*0.90mm (can be customized)

 

NFC technology features:

read and write mode

 

In read and write mode, the system performs contactless read and write functions. The system's NFC chip interacts with NFC-enabled devices - such as contactless smart cards, NFC tags, or NFC-enabled smartphones (operating in card emulation mode) - to read data from or write data to the device. This mode can be used to obtain information or initiate transfers.

 

energy saving

 

The built-in NFC device that initiates the transfer generates an RF field and then reads data from or writes data to a second NFC-built-in device. The second device does not generate its own RF field, but modulates the RF field generated by the initiating device. This is an important feature because it means that the second device uses power from the initiator and does not need its own power supply.

 

Secure Transaction

 

In order to increase the security of the read-write mode, the SAM can be used as a secure encryption co-processor. The authenticity of the encrypted data can also be verified before the data transmission. reality sex.

 

peer-to-peer mode

 

Peer-to-peer mode is used to establish a two-way communication channel between two built-in NFC devices. Every NFC-enabled device acts as an endpoint, which means that two systems can communicate with each other. This mode can use passive or active communication.

 

two-way interaction

 

This allows you to do Bluetooth or Wifi pairing, exchange business cards with colleagues, earn flight credits when purchasing airline tickets, and more.

 

energy saving

 

The peer-to-peer mode can use a passive communication scheme. Just activate a device to supply power to generate the necessary RF field. The second device can remain passive, acting only as a target device and modulating the RF field. From a power consumption point of view, the passive operating mode has obvious advantages and is one of the necessary conditions for compliance with the requirements of the NFC Forum, the main standards body for NFC.

 

Card emulation mode

 

Card emulation mode allows the system to behave like an ISO/IEC 14443 compliant contactless smart card. This means that devices with built-in NFC can be used in existing contactless card infrastructure such as: ticketing, access control, public transport, toll booths and contactless payments.

 

energy saving

 

Card emulation mode saves power by using passive communication. In this mode, the smart card or NFC device modulates the RF field generated by the transmission initiating device, which can be a contactless card reader in an access control or payment application. Since the smart card or NFC device does not generate its own RF field, the transmission is extremely efficient. NFC devices in card emulation mode consume very little power because the system only needs enough power to drive the onboard microcontroller. This allows the device battery to last a long time.