Chip Types We Offer

ST Chip Types

NFCKEY is available with multiple ST chip types from the ST25 platform, covering ISO 14443-A and ISO 15693 standards for access control, IoT, asset tracking, and identification applications. Each chip type has a distinct security profile and capability set. Explore each chip type below to identify the right fit for your deployment.

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About ST

About STMicroelectronics®

STMicroelectronics® is a global semiconductor company founded in 1987. Their ST25 product family covers NFC tag ICs across NFC Forum Type 2, Type 4, and Type 5 standards, used across access control, identification, IoT, and asset tracking applications.

NFCKEY is available with ST chip types from the ST25 platform, covering ISO 14443-A and ISO 15693 standards across a range of deployment scenarios.

Since 1987

STMicroelectronics®

ISO 14443-A & ISO 15693

Standards covered

NFC Forum certified

Interoperability

ST Chips We Offer

 ST25TA64K 8 KB High-memory NDEF · ISO 14443-A  ST25TN01K 208 B Digital signature · ISO 14443-A ST25TV16KC 2 KB Multi-area protection · ISO 15693

Solutions

Explore How NFCKEY Can Be Used In Access Control

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 ST25TA64K

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Access
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Identity
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Healthcare
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Loyalty
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eGovernment
Interactions

 ST25TA64K

ST25TA64K — 64 Kbit / 8 KB

  • Memory: 8 KB (64 Kbit) EEPROM
  • Standard: ISO/IEC 14443 Type A, NFC Forum Type 4 Tag
  • UID: 7-byte
  • Security: 128-bit passwords (separate read/write access)

ST25TA64K — 64 Kbit / 8 KB

  • Access control credentials for office, hotel, gym, and fleet systems where UID-based or password-protected authentication is sufficient
  • Smart posters, NDEF-based marketing, and product information delivery
  • Loyalty and membership programmes with issuer-controlled read/write access
  • Digital identity tags linked to off-chip records (patient ID, staff badging)
  • Asset tagging with controlled rewritable storage

ST25TA64K — 64 Kbit / 8 KB

  • ST25PC-NFC software for Windows (desktop configuration, encoding, memory management)
  • ST25 NFC Tap app (iOS and Android) for lightweight encoding and NDEF writing via smartphone
  • NDEF file can be permanently locked after encoding, prevents unauthorised rewriting
  • Separate read and write passwords allow issuer-controlled access
  • Highest memory capacity of the three ST chip types available in NFCKEY

 ST25TN01K

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Identity
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Brand Protection
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Events
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Interactions
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Loyalty

 ST25TN01K

ST25TN01K — 1.6 Kbit / 208 B

  • Memory: 1.6 Kbit EEPROM (208 bytes user memory)
  • Standard: ISO/IEC 14443 Type A, NFC Forum Type 2 Tag
  • UID: 7-byte
  • Security: TruST25™ digital signature, permanent write locks at block level, configurable kill mode

ST25TN01K — 1.6 Kbit / 208 B

  • Brand protection and anti-counterfeiting using TruST25™ digital signature
  • Consumer engagement and product information via NDEF URL on tap
  • Smart labelling, asset tagging, and inventory identification
  • Loyalty interactions where each tap returns dynamic content

ST25TN01K — 1.6 Kbit / 208 B

  • ST25PC-NFC software (Windows) for desktop configuration, encoding, and tag management
  • ST25 NFC Tap app (iOS and Android) for NDEF writing and tag programming via smartphone
  • Augmented NDEF (ANDEF) configuration enables the tag to respond with dynamic content without rewriting EEPROM
  • TruST25™ verification requires reader-side cryptographic validation (ECC) using ST's published public key for the chip family
  • TruST25™ digital signature verifies chip authenticity and helps prevent counterfeiting
  • Kill mode enables permanent deactivation, relevant for single-use or privacy-sensitive deployments
  • Augmented NDEF (ANDEF) allows the tag to return dynamic content per tap without modifying stored data
  • Unique Tap Code (UTC) generates a changing 3-digit value on each read, useful for engagement verification

ST25TV16KC

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Brand Protection
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IoT
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Marine
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Industrial
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Healthcare

ST25TV16KC

ST25TV16KC — 16 Kbit / 2 KB

  • Memory: 16 Kbit EEPROM (2 KB)
  • Standard: ISO/IEC 15693, NFC Forum Type 5 Tag
  • UID: 8-byte (64-bit, ISO/IEC 15693)
  • Security: Three 64-bit passwords, up to four independently configurable memory areas with read/write protection, TruST25™ digital signature

ST25TV16KC — 16 Kbit / 2 KB

  • Industrial asset management and item-level tagging
  • Pharmaceutical labelling and supply chain tracking
  • Library, document, and inventory management on existing ISO 15693 infrastructure
  • Logistics and returnable container tracking
  • Brand protection and anti-counterfeiting using TruST25™ digital signature

ST25TV16KC — 16 Kbit / 2 KB

  • ST25PC-NFC software (Windows) for desktop configuration, encoding, and memory area setup
  • ST25 NFC Tap app (iOS and Android) for NDEF writing and tag programming via smartphone
  • Compatible with existing ISO 15693 / NFC Type 5 reader infrastructure (industrial, library, and logistics systems)
  • Memory partitioning into up to four areas is configured at encoding time, each with independent read/write password protection
  • Uses an 8-byte UID per the ISO 15693 standard, distinct from the 7-byte UID of the two ISO 14443-A chips in the NFCKEY portfolio
  • Compatible with existing ISO 15693 / NFC Type 5 reader infrastructure widely deployed in industrial, library, and logistics environments
  • Up to four independent memory areas, each with separate read/write protection
  • TruST25™ digital signature embedded for product authentication and anti-counterfeiting
  • Configurable kill mode for permanent deactivation in privacy-sensitive or single-use deployments

Important Notice

This page is intended as general informational guidance to help you understand the different NFC chip types available.

  • Technical specifications are defined by the manufacturer. Always refer to official documentation.
  • Compatibility with your system must be confirmed with your system provider or through testing.
  • Incorrect chip selection may result in incompatibility.