NT3H2111_2211
NTAG I2C plus: NFC Forum T2T with I2C interface, password
protection and energy harvesting
Rev. 3.5 — 7 May 2019
359935
Product data sheet
COMPANY PUBLIC
1 General description
Designed to be the perfect enabler for NFC in home-automation and consumer
applications, this feature-packed, second-generation connected NFC tag is the fastest,
least expensive way to add tap-and-go connectivity to just about any electronic device.
NXP NTAG I2C plus is a family of connected NFC tags that combine a passive NFC
interface with a contact I2C interface. As the second generation of NXP’s industry leading
connected-tag technology, these devices maintain full backward compatibility with first-
generation NTAG I2C products, while adding new, advanced features for password
protection, full memory-access configuration from both interfaces, and an originality
signature for protection against cloning.
The second-generation technology provides four times higher pass-through performance,
along with energy harvesting capabilities, yet NTAG I2C plus devices are optimized for
use in entry-level NFC applications and offer the lowest BoM of any NFC solution.
I2C and NFC communications are based on simple, standard command sets, and are
augmented by the demo board OM5569/NT322E, which includes online reference source
code. All that is required is a simple antenna design (see Ref. 5), with no or only limited
extra components, and there are plenty of reference designs online for inspiration. NTAG
I2C plus development board is certified as NFC Forum Type 2 Tag (Certification ID:
58514).
2
I C
SRAM
MCU
1
0
1
0
1
0
EEPROM
Energy harvesting
Event detection
Data
Data
Energy
Energy
aaa-030257
Figure 1.ꢀContactless and contact system