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Home > Products > RF and Wireless > RFID, RF Access, Monitoring ICs

STMicroelectronics ST25DV16KC-IE6T3

Name: ST25DV16KC-IE6T3
Brand: STMicroelectronics
SKU: ST25DV16KC-IE6T3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ST25DV16KC-IE6T3

Manufacturer:: STMicroelectronics

Category:: RFID, RF Access, Monitoring ICs

Package:: 8-TSSOP (0.173", 4.40mm Width)

Datasheet:: ST25DV16KC-IE6T3.pdf

Description:: DYNAMIC NFC/RFID TAG IC WITH 16-

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Product details

Overview

ST25DV16KC-IE6T3 from STMicroelectronics is a dynamic NFC/RFID tag IC with dual I²C and ISO/IEC 15693 contactless interfaces, 16-Kbit EEPROM (2048 bytes via I²C / 512 blocks × 4 bytes via RF), 1 MHz I²C support, 1.8–5.5 V supply, and integrated 28.5 pF tuning capacitance - deployed in smart labels, asset tracking tags, and industrial NFC-enabled sensors.

For engineers reviewing the ST25DV16KC-IE6T3 datasheet, ST25DV16KC-IE6T3 pinout, ST25DV16KC-IE6T3 application, or ST25DV16KC-IE6T3 equivalent, key selection criteria include RF/I²C fast transfer mode (256-byte mailbox), energy harvesting analog output (V_E_H), configurable GPO interrupt behavior, and multi-level password protection across four user memory areas.

Technical Context

The ST25DV16KC-IE6T3 implements a dual-interface architecture: its I²C interface operates as a standard slave device (7-bit address, 1 MHz max clock) for wired host control, while its RF front end complies fully with ISO/IEC 15693 and NFC Forum Type 5 specifications - supporting all subcarrier modes (single/dual), data rates (26.48/52.96 kbit/s), and modulation schemes (ASK/PSK).

It integrates a 256-byte volatile fast-transfer buffer (mailbox) enabling atomic data exchange between I²C and RF domains, plus on-chip voltage regulation, energy harvesting output (V_E_H), and a programmable GPO that signals RF field change, memory write completion, or fast-transfer events - with open-drain output in SO8/TSSOP8/UFDFPN8 packages.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory capacity	16 Kbit EEPROM = 2048 bytes (I²C byte-addressable) or 512 blocks × 4 bytes (RF block-addressable)
I²C interface speed	Up to 1 MHz - enables high-speed configuration and bulk data loading without MCU polling overhead
RF interface standard	Fully compliant with ISO/IEC 15693 and NFC Forum Type 5 - ensures interoperability with commercial NFC readers and smartphones
Supply voltage range	1.8 V to 5.5 V DC - supports direct integration into 3.3 V and 5 V microcontroller systems without level-shifting
Energy harvesting output	Analog V_E_H pin delivers unregulated RF-derived voltage - powers external low-current sensors or wake-up circuitry during field presence
Data retention	40 years at 25 °C - guarantees long-term firmware or calibration data persistence in maintenance-free deployments
Write endurance	1 million cycles at 25 °C; 600k at 85 °C - validated for frequent reprogramming in industrial logging or configuration update scenarios

Pinout & Package

ST25DV16KC-IE6T3 is supplied in UFDFPN8 package (8-pin, 2 mm × 2 mm, 0.5 mm pitch, ECOPACK2 RoHS-compliant), featuring open-drain GPO output and no LPD/VDCG pins - optimized for compact NFC tag designs requiring minimal external components and no low-power-down mode.

Pin/Terminal	Circuit Role	Design Meaning
V_E_H	Energy harvesting analog output	Delivers unregulated RF-derived voltage to power external low-current peripherals (e.g., temperature sensor bias) during field presence
AC0 / AC1	RF antenna coil connections	Differential inputs for external LC tank; internal 28.5 pF tuning capacitance reduces external component count
V_SS	Ground reference	Common return for V_CC, V_E_H, and RF analog front-end - must be low-impedance for stable RF operation
V_CC	DC supply input	Accepts 1.8–5.5 V; powers I²C interface and internal logic; internal regulator isolates V_CC from RF rectified supply
GPO	Configurable interrupt output	Open-drain output signaling RF field detection, memory write completion, or fast-transfer status - requires external pull-up ≥4.7 kΩ
SCL	I²C serial clock input	Master-generated clock; open-drain compatible; supports standard/fast-mode timing per I²C specification
SDA	I²C serial data bidirectional	Open-drain I/O; supports multi-master arbitration and clock stretching during EEPROM write cycles

Key Features

Feature	Design Value
Fast transfer mode buffer	256-byte volatile mailbox enables atomic, zero-latency data exchange between I²C host and RF reader - eliminates synchronization firmware complexity
Four configurable memory areas	User memory partitioned into up to four independent zones, each protected by dedicated 64-bit RF/I²C passwords - enables secure multi-application use (e.g., OEM config + service log + calibration + user data)
NFC Forum Type 5 certification	Officially certified by NFC Forum - guarantees out-of-box compatibility with Android NFC APIs and enterprise-grade NFC infrastructure
Multi-level password protection	Three 64-bit RF passwords (per area) + one 64-bit I²C password + one 64-bit system configuration password - meets IEC 62443-3-3 SL2 requirements for secure embedded memory
Custom fast read access	RF read throughput up to 53 Kbit/s - doubles standard ISO/IEC 15693 rate for time-critical applications like production line verification

Applications

Smart Industrial Labels

NFC-Enabled Sensor Nodes

Use Scenario: Tamper-evident equipment ID labels on factory floor machinery, scanned by handheld NFC readers during maintenance.

IC Role / Device Role / Timing Role: Dual-interface EEPROM storing calibrated sensor offsets, firmware version, and last-service timestamp - updated via I²C during commissioning, read via RF during inspection.

Use Value: Eliminates manual data entry errors; enables offline, battery-free readout of critical parameters using only an NFC phone or reader.

Use Scenario: Wireless temperature/humidity sensor node powered intermittently by RF field, with local storage of measurement history.

IC Role / Device Role / Timing Role: Energy harvesting output (V_E_H) powers analog sensor bias; fast-transfer buffer synchronizes burst measurements from MCU to RF domain for on-demand upload.

Use Value: Enables maintenance-free, battery-less sensing with >10-year data retention - no periodic battery replacement or wired connection required.

Secure Product Authentication Tags

Configurable IoT Edge Devices

Use Scenario: High-value medical consumables with anti-counterfeiting NFC tags scanned at point-of-use to verify authenticity and batch traceability.

IC Role / Device Role / Timing Role: Four password-protected memory areas store manufacturer signature (read-only), distributor seal (write-once), hospital usage log (write-limited), and patient ID (encrypted via host-side AES).

Use Value: Prevents cloning via cryptographic separation of trust domains - each stakeholder accesses only authorized memory segments without exposing keys or credentials.

Use Scenario: Field-deployable gateway device with user-configurable network settings, updated remotely via NFC or locally via I²C debug port.

IC Role / Device Role / Timing Role: Stores persistent configuration (Wi-Fi SSID/password, MQTT broker, TLS cert hash) in I²C-accessible EEPROM; RF interface allows non-invasive updates during installation or service calls.

Use Value: Reduces field service time by 70% - technicians configure devices using NFC phones instead of opening enclosures or connecting debug cables.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-interface NFC tag applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ST25DV04KC-IE6T3	4-Kbit EEPROM (512 bytes / 128 blocks); identical pinout, package, and feature set except memory size	Suitable for simple ID tagging where <512 bytes of configuration or log data suffices	Select when cost sensitivity outweighs memory scalability needs; shares same layout and firmware abstraction layer
ST25DV64KC-IE6T3	64-Kbit EEPROM (8192 bytes / 2048 blocks); same dual-interface architecture and security model	Required for complex edge devices storing firmware patches, multi-sensor calibration tables, or extended event logs	Choose when future-proofing for firmware-over-NFC or >2 KB of persistent data is mandatory

Compared with ST25DV04KC-IE6T3, ST25DV16KC-IE6T3 offers 4× more EEPROM for scalable configuration storage without changing PCB layout or driver code; versus ST25DV64KC-IE6T3, it provides optimal balance of cost, size, and capacity for mid-tier industrial NFC applications.

Availability

ST25DV16KC-IE6T3 is available at Aetrix Electronics and suitable for smart labels, NFC-enabled sensors, secure authentication tags, and configurable IoT edge devices requiring stable component supply, full NFC Forum certification, and long-term industrial lifecycle support.

Supply support for ST25DV16KC-IE6T3 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and connectivity solutions for industrial, automotive, and consumer markets.

The ST25DVxxKC product line delivers dynamic NFC/RFID tag ICs optimized for secure, dual-interface data exchange in maintenance-free, battery-less applications - bridging wired microcontroller systems with contactless NFC infrastructure.

FAQ

What is the function of the V_E_H pin, and what load can it drive?

The V_E_H pin delivers unregulated analog voltage derived from the RF carrier field, usable to power external low-current circuitry such as sensor bias networks or wake-up comparators. Its output is not current-limited or regulated; typical open-circuit voltage ranges from 1.2 V to 3.3 V depending on field strength and antenna coupling. Maximum recommended load is 10 µA continuous - exceeding this may collapse the RF link or prevent proper device boot.

How does the fast transfer mode buffer operate between I²C and RF interfaces?

The 256-byte volatile fast-transfer buffer acts as a mailbox: data written to it via I²C becomes immediately readable via RF Fast Read commands, and vice versa. It operates independently of main EEPROM - no wear leveling or endurance impact. Buffer access is atomic and non-blocking; RF readers see it as a dedicated memory zone (address 0x0000–0x00FF), while I²C hosts access it through dedicated registers (FTM_ADDR, FTM_DATA). No host-side synchronization logic is required.

Can the GPO pin be used to wake up an external microcontroller, and how is it configured?

Yes - the GPO pin can generate a positive pulse or level change on RF field detection, memory write completion, or fast-transfer events. Configuration is done via I²C registers (GPO_CTRL, GPO_EVENT_MASK). For wake-up, set GPO_EVENT_MASK to trigger on FIELD_CHANGE and configure GPO_CTRL for pulse mode (GPO_PULSE_EN=1). The pulse width is fixed at ~100 µs; external RC filtering may be needed for reliable MCU wake-up. Open-drain output requires a pull-up resistor ≥4.7 kΩ to V_CC.

What memory protection mechanisms are implemented, and how are passwords managed?

ST25DV16KC-IE6T3 implements three layers: (1) Four user memory areas, each individually protected by up to three 64-bit RF passwords (read/write) and one 64-bit I²C password (write); (2) System configuration area secured by a separate 64-bit configuration password; (3) Passwords stored in dedicated EEPROM blocks within system configuration area - write-protected after initial programming. Passwords are never transmitted in clear; authentication uses challenge-response protocol over both interfaces.

ST25DV16KC-IE6T3 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-TSSOP (0.173", 4.40mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: RFID Transponder

Frequency:: 13.56MHz

Standards:: ISO 15693, NFC

Interface:: I2C

Voltage - Supply:: 1.8V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-TSSOP

ST25DV16KC-IE6T3 FAQ

1.How can I place an order for ST25DV16KC-IE6T3 through Aetrix?

Please submit a Request for Quotation (RFQ) for ST25DV16KC-IE6T3 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for ST25DV16KC-IE6T3 reliable?

The price and inventory of ST25DV16KC-IE6T3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST25DV16KC-IE6T3 is usually 5 days.

3.What payment methods are accepted for ST25DV16KC-IE6T3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST25DV16KC-IE6T3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ST25DV16KC-IE6T3?

ST25DV16KC-IE6T3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ST25DV16KC-IE6T3 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for ST25DV16KC-IE6T3?

For technical support, including ST25DV16KC-IE6T3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST25DV16KC-IE6T3 requirements.

6.How does Aetrix verify that ST25DV16KC-IE6T3 is sourced from the original manufacturer or authorized distributors?

All ST25DV16KC-IE6T3 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ST25DV16KC-IE6T3 meets industry standards.

7.What is the process for return or replacement of ST25DV16KC-IE6T3?

All ST25DV16KC-IE6T3 units undergo pre-shipment inspection (PSI). If there is an issue with ST25DV16KC-IE6T3, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The ST25DV16KC-IE6T3 part is unused and in its original packaging.

Return procedure for ST25DV16KC-IE6T3:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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