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How Much Data Can an NFC Tag Store?
At what point must the tag be reprogrammed or replaced?
There are many different types of Near Field Communication (NFC) chips on the market, each of which contains a different amount of user memory. There are two versions of NXP Semiconductors' MiFare Classic chip, for example. One features 1 kilobyte of electrically erasable programmable read-only memory (EEPROM), while the other offers 4 kilobytes of memory. I would say that 1 kilobyte is common.
—Mark Roberti, Founder and Editor, RFID Journal
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