NTAG216 vs. ICODE SLIX2

These two chips, the NTAG216 and the ICODE SLIX2 are from different NFC chip families. The NTAG216, manufactured by NXP belonging to the NTAG family, and the ICODE SLIX2, also manufactured by NXP.

The NTAG216 has the largest memory capacity of the NTAG21x range. It's typically used in business cards and similar vCard storage applications. With a better availability than the smaller memory NTAG215 chip, it's essentially the only option if you need more memory than the NTAG213. It's not a cheap chip and prices for NTAG216 tags carry a heavy premium. Seritag strongly recommend that NFC tags shouldn't be used to store data but contain only the link to data. In which case, using a large memory chip such as the NTAG216 isn't always a good idea in the first place. However, if your application absolutely requires it, this chip is an option.

The ICODE SLIX is part of NXP's ICODE family of chips. The ICODE series is older than NXP's NTAG series and has a number of significant differences - particularly a longer 8 byte UID and a longer memory retention specification of 50 years. However, this ICODE SLIX2 variant is newer and contains a large numebr of feature enhancements.

Generally, these chips are not commonly used in mobile phone NFC applications. While they are similar in cost to the NTAG series, Seritag generally recommend NTAG unless the additional specified memory retention lifespan is specifically required. The ICODE chips are not available in as many formats as the NTAG chips and are typically made to order.

Both these chips have a strong ScanStrength and will work very well with mobile phones.

Key Features

Key Specifications

Phone compatibility

Typical Use Cases

User Features

	NTAG216	ICODE SLIX2
Total memory (bytes)	924	316
User memory (bytes)	888	320
Max URL (chars)	872	250
UID (bytes)	7	8
ECC signature
32-bit password
UID ASCII mirror		-
Scan Counter
Counter ASCII mirror		-
Lockable

Technical Specifications

	NTAG216	ICODE SLIX2
Chip thickness	75 µm / 120 µm	120 μm
NFC Forum	Type 2	Type 5
Operating Freq.	13.56Mhz	13.56Mhz
Data Trans. Rate	106 kbit/s	53 kbit/s
Input Capacitance	50pf	23.5 pf
Fast read
Data retention (years)	10	50
Write endurance (cycles)	100000	100000
Anticollision		-
Standard	ISO/IEC 14443 A	ISO/IEC 15693
Release date	2013	2016

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