What is an ST25 NFC tag?
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ST25 NFC / RFID Tags

ST25T product family offers NFC/RFID ICs for contactless applications. They include short and long range (ISO/IEC 14443A/B & 15693) and feature EEPROM memory (from 512-bit to 64-Kbit).
Mar 13th,2025 368 Views

What is an ST25 NFC tag?

A near field communication (NFC) tag consists of a tag IC chip and an antenna. ST manufactures ST25 NFC tag ICs for tag makers, who connect the IC to an antenna to build operational ST25 NFC tags.

These NFC tags do not require batteries to communicate with NFC readers like smartphones. They harvest the power they need directly from the magnetic field of the reader positioned in close proximity to the tag.

The ST25 NFC tag and the reader exchange data using specific NFC instructions defined by standards for contactless communication.

Any physical object with an ST25 NFC tag can therefore offer an advanced digital experience to the consumer.

ST25 NFC tags can enhance user experience in several ways, depending on the targeted application. For instance, you can engage with consumers, authenticate goods, and even validate your bus ticket.

ST manufactured NFC ICs meet all the requirements for effective NFC applications. The "T" in ST25T product names denote tag products in the ST25 family.

Description ST25TV ST25TN ST25TA ST25TB
Standards compliance ISO 15693
Up to 53kb/s
NFC type 5
ISO 14443-A
106kb/s
NFC type 2
ISO 14443-A
106kb/s
NFC type 4
ISO 14443-B
106kb/s
Memory EEPROM
512bit to 64Kbit
60-year, 1Mcycles
EEPROM
512bit & 1.6Kbit
40-year, 100Kcycles
EEPROM
512bit to 64Kbit
200-year, 1Mcycles
EEPROM
512bit to 4Kbit
40-year, 1Mcycles
Advanced features Augmented NDEF
24bit UTC
64bit password
TruST25 Digital signature
Tamper detect
Untraceable & kill mode
Augmented NDEF
24bit UTC
TruST25 Digital signature
Kill mode
128bit password
20bit counter
General Purpose Output
TruST25 Digital signature
32bit counters
Lock bit, OTP bit
Use cases Consumer engagement
Asset tracking
Brand protection
Product identification
Parameter setting
Product information
Access control
Consumer engagement
Product identification
Parameter setting
Product information
Gaming
Smart labelling
Business card
Smart poster
Bluetooth/Wi-Fi pairing
Product identification
Public transportation
Access control