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

STMicroelectronics ST25DV04KC-JF6L3

Name: ST25DV04KC-JF6L3
Brand: STMicroelectronics
SKU: ST25DV04KC-JF6L3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ST25DV04KC-JF6L3

Manufacturer:: STMicroelectronics

Category:: RFID, RF Access, Monitoring ICs

Package:: 10-XFBGA, WLCSP

Datasheet:: ST25DV04KC-JF6L3.pdf

Description:: DYNAMIC NFC/RFID TAG IC WITH 4-K

Quantity:: RFQ Add To RFQ list

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Inventory:4,415

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Product details

Overview

ST25DV04KC-JF6L3 from STMicroelectronics is a dynamic NFC/RFID tag IC with 4-Kbit EEPROM, dual I²C and ISO/IEC 15693 contactless interfaces, 1.8–5.5 V supply, 256-byte fast-transfer buffer, and energy harvesting output (V_E_H). It operates as a secure, field-powered memory node in smart labels, asset tags, and industrial IoT sensors where battery-free operation and host-controlled RF access are required.

For engineers reviewing the ST25DV04KC-JF6L3 datasheet, ST25DV04KC-JF6L3 pinout, ST25DV04KC-JF6L3 application, or ST25DV04KC-JF6L3 equivalent, key selection criteria include I²C/RF dual-interface coordination, configurable GPO event triggering (field change, write completion), 4-byte block vs. byte addressing mapping, and LPD-enabled low-power mode support in WLCSP10/UFDFPN12 packages.

Technical Context

The device implements a dual-domain architecture: an I²C interface (up to 1 MHz) accesses EEPROM as byte-addressable memory (512 bytes), while the RF interface complies fully with ISO/IEC 15693 and NFC Forum Type 5, accessing the same memory as 128 blocks of 4 bytes each. Internal tuning capacitance is fixed at 28.5 pF for antenna matching.

It integrates a 256-byte volatile mailbox buffer enabling fast transfer mode between interfaces, plus configurable protection using three 64-bit RF passwords and one 64-bit I²C password. The GPO pin supports open-drain (SO8/TSSOP8/UFDFPN8) or CMOS (WLCSP10/UFDFPN12) output with LPD-triggered low-power mode in 10- and 12-pin variants.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory capacity	4-Kbit EEPROM = 512 bytes (I²C) / 128 blocks × 4 bytes (RF)
I²C interface speed	Up to 1 MHz - enables high-speed host-side configuration without bus contention
RF interface standard	ISO/IEC 15693 & NFC Forum Type 5 certified - ensures interoperability with commercial NFC readers
Fast transfer buffer	256-byte dedicated volatile mailbox - eliminates latency when synchronizing data between wired and contactless domains
Energy harvesting output	V_E_H analog pin - delivers unregulated RF-derived voltage to power external sensors or logic (e.g., temperature sensor bias)
Write endurance	1 million cycles at 25 °C - supports frequent firmware or calibration updates in field-deployed devices
Data retention	40 years - guarantees long-term integrity of stored configuration, calibration, or serial data
Operating temperature	–40 °C to 85 °C (Range 6) - validated for industrial control panels and outdoor asset tracking enclosures

Pinout & Package

ST25DV04KC-JF6L3 is packaged in UFDFPN8 (8-pin, 2 × 2 mm, ECOPACK2), with open-drain GPO and no LPD/VDCG pins. This variant supports I²C and RF operation without low-power-down mode but includes all core functionality: V_CC, V_SS, SDA, SCL, AC0/AC1 antenna connections, V_E_H, and GPO.

Pin/Terminal	Circuit Role	Design Meaning
V_CC	DC supply input	1.8–5.5 V DC source; powers internal regulator and I²C logic; isolated from RF rectified supply
V_SS	Ground reference	Common return for V_CC, V_E_H, and analog front-end; must be low-impedance
SDA	I²C bidirectional data	Open-drain I/O requiring external pull-up; supports multi-master arbitration and clock stretching
SCL	I²C clock input	Input-only; synchronous timing reference for all I²C transactions including EEPROM writes
AC0 / AC1	RF antenna interface	Differential inputs for external LC tank; internal 28.5 pF tuning capacitance simplifies matching network design
V_E_H	Energy harvesting output	Analog voltage output during RF field presence; high-Z when inactive - usable to wake auxiliary circuitry
GPO	Configurable interrupt output	Open-drain output; default triggers on RF field change; programmable for memory write completion or fast-transfer events

Key Features

Feature	Design Value
Dual-interface memory coherency	Single EEPROM array mapped identically to I²C byte addresses (0x0000–0x01FF) and RF block addresses (0x0000–0x007F), eliminating translation overhead
Configurable memory protection	Four user-defined memory areas, each independently protected by 64-bit RF passwords (three) and one 64-bit I²C password - enables tiered access control for OEM vs. end-user data
Fast transfer mode	256-byte volatile buffer allows atomic read/write transfers between I²C and RF domains - critical for real-time sensor log synchronization
NFC Forum Type 5 certification	Guarantees compatibility with Android/iOS NFC readers and enterprise middleware without custom driver development
Field-powered operation	Operates with zero external power when RF field is active - enables maintenance-free smart labels on metal assets or rotating machinery

Applications

Smart Industrial Labels

Secure Product Authentication

Use Scenario: Tamper-evident label on PLC module housing storing firmware version, calibration date, and service history.

IC Role / Device Role / Timing Role: Dual-interface EEPROM node: I²C updated during factory programming; RF read by maintenance tablet during field diagnostics.

Use Value: Eliminates manual barcode scanning; enables automatic firmware validation and audit trail capture via NFC reader.

Use Scenario: High-value medical consumable cartridge with embedded UID and encrypted production batch ID.

IC Role / Device Role / Timing Role: Secure identity anchor: UID and AFI/DSFID registers prevent cloning; RF password-protected write prevents counterfeiting.

Use Value: Enables regulatory-compliant traceability and real-time verification against cloud database during device initialization.

Energy-Harvesting Sensor Nodes

Automated Test Fixture Memory

Use Scenario: Battery-free temperature sensor on HVAC duct powered solely by NFC reader field during commissioning.

IC Role / Device Role / Timing Role: Power + memory hub: V_E_H powers external ADC; I²C writes measurement data; RF reads logs post-scan.

Use Value: Removes battery replacement cost and downtime; supports predictive maintenance via historical thermal profiling.

Use Scenario: PCB test fixture storing golden parametric limits and last-pass results for each DUT.

IC Role / Device Role / Timing Role: Configuration register: I²C loads limits before test; GPO pulses on RF write completion to trigger next test step.

Use Value: Enables fixture self-calibration and reduces operator error by auto-applying correct test profiles per board revision.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dynamic NFC tag applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ST25DV16KC-JF6L3	16-Kbit EEPROM (2048 bytes / 512 RF blocks); identical pinout and feature set	Required when >512 bytes of field-updatable configuration or logging data is needed	Select when future firmware expansion or multi-sensor data storage justifies higher density and cost
NXH3670UK/N1E	NXP HF RFID tag with 2-Kbyte EEPROM, ISO15693, no I²C interface, no energy harvesting	Lacks wired interface and V_E_H output - unsuitable for host-coordinated or energy-harvesting use cases	Choose only for pure passive NFC tag applications where I²C control and auxiliary power are unnecessary

Compared with ST25DV16KC-JF6L3, this part offers lower memory cost and footprint for minimal configuration storage; versus NXH3670UK/N1E, it adds essential I²C host control and energy harvesting-enabling hybrid wired/wireless system architectures.

Availability

ST25DV04KC-JF6L3 is available at Aetrix Electronics and suitable for smart labels, secure authentication systems, energy-harvesting sensors, and automated test fixtures requiring stable component supply across industrial and medical product lifecycles.

Supply support for ST25DV04KC-JF6L3 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 family targets secure, dual-interface data exchange in battery-constrained and maintenance-free environments - specifically engineered for NFC-enabled smart packaging, industrial IoT edge nodes, and trusted device identity management.

FAQ

What is the maximum RF data rate supported by ST25DV04KC-JF6L3?

The device supports custom fast read access up to 53 Kbit/s over ISO/IEC 15693, achieved using extended commands and optimized subcarrier modulation. Standard read rates are 26.48 Kbit/s (high data rate) and 6.62 Kbit/s (low data rate), both compliant with NFC Forum Type 5 requirements and interoperable with common Android NFC readers.

Can the GPO pin be used to wake a microcontroller from deep sleep?

Yes - the GPO pin can be configured to assert on RF field detection or memory write completion. In UFDFPN8 packages, it operates as an open-drain output requiring an external pull-up resistor (>4.7 kΩ). When tied to a GPIO interrupt pin on a low-power MCU, it provides reliable wake-up signaling without additional level-shifting circuitry.

How does the 256-byte fast transfer buffer improve system responsiveness?

The buffer acts as a mailbox: I²C writes data into it, then triggers an RF-side notification; the NFC reader fetches the entire 256-byte payload in one fast-read transaction. This avoids sequential 4-byte block reads, reducing RF session time by >80% compared to direct block access - critical for handheld reader battery life and throughput in logistics scanning.

Is antenna tuning required when using the internal 28.5 pF capacitance?

Yes - the internal 28.5 pF capacitor is fixed and serves as a baseline; final tuning requires external parallel/series capacitors to achieve resonance at 13.56 MHz with the selected antenna coil's inductance and parasitic capacitance. ST provides recommended matching networks and layout guidelines in AN4919 to achieve >40% coupling efficiency and 50-mm read range.

ST25DV04KC-JF6L3 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 10-XFBGA, WLCSP

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 (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-WLCSP (1.65x1.48)

ST25DV04KC-JF6L3 FAQ

1.How can I place an order for ST25DV04KC-JF6L3 through Aetrix?

Please submit a Request for Quotation (RFQ) for ST25DV04KC-JF6L3 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 ST25DV04KC-JF6L3 reliable?

The price and inventory of ST25DV04KC-JF6L3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST25DV04KC-JF6L3 is usually 5 days.

3.What payment methods are accepted for ST25DV04KC-JF6L3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST25DV04KC-JF6L3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ST25DV04KC-JF6L3?

ST25DV04KC-JF6L3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ST25DV04KC-JF6L3 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 ST25DV04KC-JF6L3?

For technical support, including ST25DV04KC-JF6L3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST25DV04KC-JF6L3 requirements.

6.How does Aetrix verify that ST25DV04KC-JF6L3 is sourced from the original manufacturer or authorized distributors?

All ST25DV04KC-JF6L3 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 ST25DV04KC-JF6L3 meets industry standards.

7.What is the process for return or replacement of ST25DV04KC-JF6L3?

All ST25DV04KC-JF6L3 units undergo pre-shipment inspection (PSI). If there is an issue with ST25DV04KC-JF6L3, 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 ST25DV04KC-JF6L3 part is unused and in its original packaging.

Return procedure for ST25DV04KC-JF6L3:

1.Submit a request within 90 days.

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

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