NFC printed tag chip is optional: NTAG213, NTAG215, NTAG216
	NTAG213, NTAG215 and NTAG216 are developed by NXP Semiconductors and are used as standard NFC tag ICs to cooperate with NFC devices or NFC-compatible close-coupled devices, and are widely used in market applications such as retail, gaming and consumer electronics. Designed to fully comply with NFC Forum Type 2 tags and ISO/IEC14443 Type A specifications.
	 
	NFC tag introduction:
	The tag has a 7-byte UID programmed by the manufacturer;
	Pre-programmed functional container with one-time programmable bits;
	With field programmable read-only lock function;
	Original signature based on ECC;
	32-bit password protection function can prevent unauthorized memory operation;
	Anti-interference
	The intelligent anti-interference function allows multiple tags to work in the field at the same time. The anti-interference algorithm selects each label separately and ensures that the selected label is correct;
	The execution of the transaction will not be disturbed by the presence of another tag on site.
	 
	 
	Features and advantages
	Contactless data transmission and power supply;
	Working frequency: 13.56 MHz
	Data transmission: 106 kb/s
	Data integrity: 16-bit CRC, parity, bit coding, bit counting;
	Working distance: up to 100 mm (depending on different parameters, such as field strength and antenna geometry);
	7-byte serial number (ISO/IEC 14443-3 cascade level 2);
	UID ASCII mirror for automatic serialization of NDEF messages;
	The read command triggers the automatic NFC counter;
	The ASCII mirror of the NFC counter can automatically add the NFC counter value to the NDEF message;
	Original signature based on ECC;
	Fast read commands;
	Really anti-interference;
	50 pF input capacitance;
	180 bytes, 540 bytes or 924 bytes, organized in 45 pages, 135 pages or 231 pages, 4 bytes per page;
	144 bytes, 504 bytes or 888 bytes users can freely read/write area (36 pages, 126 pages or 222 pages);
	4-byte initialized functional container with one-time programmable access bit;
	The first 16 pages have a field programmable read-only lock function for each page;
	After the first 16 pages, every two pages (NTAG213) or every 16 pages (NTAG215 and NTAG216) field programmable read-only lock function;
	Configurable password protection with optional failed attempt limit function;
	Anti-modification support functional container (CC) and lock position;
	Originality inspection supports ECC;
	The data retention period is 10 years;
	The write operation tolerance is 100,000 cycles;
	 
	Applications:
	Smart advertising; product and device certification, call request, SMS, call to action, discount coupons and coupons, Bluetooth or Wi-Fi pairing, connection switching, product certification, mobile phone matching tags, unmanned retail, payment, social media, access control system , Games, toys, medicines, business cards, retail, cashless payment, etc.