Find Out the Types and Technical Details of NFC Chips


Near field communication (NFC) is among the most versatile contactless information sharing and transfer technologies that can be customised to suit a variety of applications. You can use it as an innovative way to provide your contact information to a compatible smartphone. You need an NFC chip to make that possible. NFC chips are programmable and can store a small amount of data, and they can be embedded in particular objects to keep them discreet, such as cards. The NFC chip card is a popular way to carry that information wherever you go.

How it works

NFC chips activate when they come in close contact with a compatible device, such as a smartphone or an NFC reader. The operating frequency is limited to 13.56 MHz, and you need to make sure that the chip is within a few centimetres from the device. The NFC chip card is passive and uses the power from the device that tapped it. That said, sensitivity to interference is moderate, so the information being shared can be secure as soon as the tag is locked during encoding.

Chip types

High-quality NFC chips communicate according to the ISO 14443 type A and B wireless standards, which are internationally acknowledged for contactless systems. They’re also the same standards used on public transportation access cards, which is why the NFC chip card is also compatible with existing contactless technologies, like mobile wallet and card payment terminals.

NFC chips come in different types, with types 1 and 2 being the most common. Their capacities range from 48 bytes to 2 kb of data, and they can transmit information at 106 kbit/s. It is possible to rewrite the information on those chips with the right program. An NFC chip card with type 3 NFC transfers data at a slightly faster rate of 212 kbit/s, making it ideal for complex applications. However, it cannot be rewritten. Another type, Type 4, is read-only, with a bigger memory of 32 kb and around 106 kbit/s to 424 kbit/s of communication speeds.

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