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

STMicroelectronics ST25DV04KC-IE8S3

Name: ST25DV04KC-IE8S3
Brand: STMicroelectronics
SKU: ST25DV04KC-IE8S3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ST25DV04KC-IE8S3

Manufacturer:: STMicroelectronics

Category:: RFID, RF Access, Monitoring ICs

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: ST25DV04KC-IE8S3.pdf

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

Quantity:: RFQ Add To RFQ list

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Inventory:2,658

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Product details

Overview

ST25DV04KC-IE8S3 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-IE8S3 datasheet, ST25DV04KC-IE8S3 pinout, ST25DV04KC-IE8S3 application, or ST25DV04KC-IE8S3 equivalent, key selection criteria include I²C-to-RF mailbox latency, configurable GPO interrupt events (field change, write completion), RF password protection granularity (four user areas), and package-specific LPD/VDCG support for low-power mode in WLCSP10 and UFDFPN12 variants.

Technical Context

The ST25DV04KC-IE8S3 implements a dual-interface architecture: its I²C interface (up to 1 MHz) provides byte-level EEPROM access under DC power, while its ISO/IEC 15693-compliant RF interface enables block-level (4-byte) read/write via magnetic coupling at up to 53 Kbit/s. The device integrates a 28.5 pF internal tuning capacitance and supports all ISO/IEC 15693 modulation/coding modes without external matching components.

Its fast transfer mode uses a dedicated 256-byte volatile buffer to synchronize data between wired and contactless domains; GPO interrupts-configurable for RF field detection, memory write completion, or fast-transfer status-are implemented as open-drain (SO8/TSSOP8/UFDFPN8) or CMOS (WLCSP10/UFDFPN12) outputs, with LPD input enabling sub-1 µA standby current only in 10- and 12-pin packages.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory capacity	4-Kbit EEPROM = 512 bytes (I²C) / 128 blocks × 4 bytes (RF); enables compact firmware storage or sensor calibration data in space-constrained tags
I²C interface speed	Up to 1 MHz protocol support; allows high-speed configuration and bulk data loading from microcontrollers without timing bottlenecks
RF data rate	Up to 53 Kbit/s fast read; reduces NFC reader dwell time in logistics scanning and maintenance tag interrogation
Write endurance	1 million cycles at 25 °C; ensures reliable reprogramming over product lifetime in field-updatable industrial assets
Data retention	40 years; guarantees long-term integrity of calibration coefficients, serial numbers, or compliance records in unpowered storage
Supply voltage range	1.8 V to 5.5 V; interoperates with legacy 3.3 V and modern ultra-low-voltage 1.8 V MCU systems without level-shifting
Energy harvesting output	V_E_H analog pin delivers unregulated RF-derived voltage; powers external sensors or low-threshold comparators in passive sensing nodes

Pinout & Package

ST25DV04KC-IE8S3 is supplied in SO8N (8-pin narrow SOIC) package per ECOPACK2 RoHS-compliant standard. Pin functions are validated per DS13519 Rev 8 Figure 2 and Table 1.

Pin/Terminal	Circuit Role	Design Meaning
V_E_H	Energy harvesting analog output	Delivers unregulated RF-derived voltage; requires external capacitor filtering for stable analog supply to companion circuitry
AC0 / AC1	RF antenna coil terminals	Differential inputs for 13.56 MHz LC tank; internal 28.5 pF tuning capacitance eliminates need for external trimmer capacitors
V_SS	Ground reference	Common return for V_CC, V_DCG, and V_E_H; must be low-impedance connection to minimize RF noise coupling
V_CC	DC supply input	Accepts 1.8–5.5 V; powers I²C interface and internal regulator; internal isolation prevents RF rectified voltage backfeed
GPO	Configurable interrupt output	Open-drain output; requires external pull-up (>4.7 kΩ); signals RF field presence, write completion, or fast-transfer status
SCL	I²C serial clock input	Master-generated clock; open-drain compatible; requires external pull-up; defines timing for all I²C transactions
SDA	I²C bidirectional data line	Open-drain I/O; shares bus with other devices; pull-up resistor mandatory for proper logic level restoration

Key Features

Feature	Design Value
ISO/IEC 15693 & NFC Forum Type 5 certification	Guarantees interoperability with commercial NFC readers and smartphones without proprietary driver development
Four configurable password-protected memory areas	Enables tiered security: e.g., public product ID (read-only), calibrated sensor offsets (RF-write protected), firmware version (I²C-write only)
256-byte fast-transfer buffer (mailbox)	Eliminates host polling by allowing atomic I²C-to-RF data handoff; critical for real-time sensor log synchronization
Configurable GPO interrupt events	Reduces host MCU wake-up overhead: GPO asserts on RF field detection or write completion instead of periodic polling
Internal 28.5 pF tuning capacitance	Removes need for external tuning caps; simplifies PCB layout and improves RF performance consistency across production units

Applications

Smart Industrial Labels

Medical Device Calibration Tags

Use Scenario: Reusable metal asset tags on CNC tooling racks scanned by handheld NFC readers during maintenance checks.

IC Role / Device Role / Timing Role: Dual-interface memory node storing tool life counters, calibration dates, and firmware revision; updated via I²C during machine downtime and read via RF during shop-floor inspection.

Use Value: Eliminates manual data entry errors and enables offline traceability without battery replacement; 40-year data retention ensures archival compliance.

Use Scenario: Sterilizable calibration tags affixed to ultrasound probes, surviving repeated autoclaving cycles.

IC Role / Device Role / Timing Role: Secure, field-powered EEPROM storing transducer serial number, gain compensation coefficients, and last-calibration timestamp; accessed via hospital NFC tablets.

Use Value: Password-protected memory areas prevent unauthorized overwrite of calibration data; energy harvesting powers onboard temperature sensor during scan.

Automotive Service Records

Smart Packaging Authentication

Use Scenario: Tamper-evident NFC tags embedded in vehicle service manuals, scanned by dealership tablets during oil changes.

IC Role / Device Role / Timing Role: Contactless memory storing service history, VIN-linked maintenance logs, and OEM warranty status; updated via I²C at factory and read via RF at service centers.

Use Value: Four password-protected areas isolate warranty terms (RF-read only) from technician notes (I²C-write only), enforcing data governance across supply chain tiers.

Use Scenario: Luxury goods packaging with embedded NFC tag scanned by consumer smartphone to verify authenticity and access care instructions.

IC Role / Device Role / Timing Role: ISO/IEC 15693-compliant RFID tag providing UID-based anti-counterfeiting; stores encrypted batch code and production date accessible only after cloud verification.

Use Value: NFC Forum Type 5 certification ensures universal smartphone compatibility; fast 53 Kbit/s read enables instant response during consumer authentication.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
NXP NT3H2111W0FHKH	2-Kbit EEPROM, no energy harvesting output, integrated 13.56 MHz matching network, supports NFC Forum Type 4 (ISO/IEC 14443-A)	Limited to smartphone-centric use cases; lacks field-powered analog supply for sensor integration	Select when prioritizing smartphone compatibility over industrial sensor powering and higher memory density
ON Semiconductor N24RF04	4-Kbit EEPROM, I²C-only interface, no RF capability, 1.7–5.5 V supply, 1 MHz I²C	Requires wired connection for all updates; no contactless read capability or UID-based authentication	Select when NFC functionality is unnecessary and cost-sensitive designs require pure I²C EEPROM with identical memory size

Compared with NT3H2111W0FHKH and N24RF04, ST25DV04KC-IE8S3 uniquely combines ISO/IEC 15693 RF, I²C, energy harvesting, and four-area password protection-enabling battery-free, secure, dual-mode data exchange in industrial and medical tagging where both wired provisioning and contactless interrogation are required.

Availability

ST25DV04KC-IE8S3 is available at Aetrix Electronics and suitable for smart industrial labels, medical device calibration tags, automotive service record systems, and luxury goods authentication requiring stable component supply across multi-year production cycles.

Supply support for ST25DV04KC-IE8S3 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 battery-free industrial IoT, medical traceability, and smart packaging-where field-powered operation and host-controlled RF access are essential.

FAQ

What is the maximum RF data rate supported by ST25DV04KC-IE8S3?

The ST25DV04KC-IE8S3 supports a custom fast read access mode up to 53 Kbit/s, exceeding standard ISO/IEC 15693 high-data-rate mode (26.48 Kbit/s). This is achieved through optimized command sequencing and internal buffer handling, reducing reader dwell time in high-throughput logistics scanning without requiring reader firmware changes.

How does the energy harvesting output (V_E_H) function in practice?

V_E_H delivers an unregulated analog voltage derived from the RF carrier field, active only when sufficient field strength is present and energy harvesting mode is enabled. It sinks no current when inactive (high-Z state), and its output voltage scales with field intensity-typically 1–3 V under standard NFC reader conditions-powering low-threshold comparators or biasing passive sensors without external batteries.

Can the GPO pin operate in both open-drain and CMOS modes?

No-the GPO output type is fixed by package: SO8N, TSSOP8, and UFDFPN8 variants provide open-drain GPO requiring an external pull-up resistor (>4.7 kΩ), while WLCSP10 and UFDFPN12 variants offer CMOS GPO that requires V_DCG to be connected to an external supply. The ST25DV04KC-IE8S3 uses SO8N packaging, so its GPO is open-drain only.

What memory protection mechanisms are available beyond password control?

In addition to three 64-bit RF passwords and one 64-bit I²C password for user memory areas, the ST25DV04KC-IE8S3 provides system-level protection via a separate 64-bit configuration password guarding static registers-including UID, AFI, DSFID, and ENDA area limits. All passwords are stored in dedicated EEPROM blocks and enforced at the hardware level during command execution, preventing unauthorized access even during partial memory reads.

ST25DV04KC-IE8S3 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm 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 ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

ST25DV04KC-IE8S3 FAQ

1.How can I place an order for ST25DV04KC-IE8S3 through Aetrix?

Please submit a Request for Quotation (RFQ) for ST25DV04KC-IE8S3 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-IE8S3 reliable?

The price and inventory of ST25DV04KC-IE8S3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST25DV04KC-IE8S3 is usually 5 days.

3.What payment methods are accepted for ST25DV04KC-IE8S3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST25DV04KC-IE8S3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ST25DV04KC-IE8S3?

ST25DV04KC-IE8S3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ST25DV04KC-IE8S3 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-IE8S3?

For technical support, including ST25DV04KC-IE8S3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST25DV04KC-IE8S3 requirements.

6.How does Aetrix verify that ST25DV04KC-IE8S3 is sourced from the original manufacturer or authorized distributors?

All ST25DV04KC-IE8S3 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-IE8S3 meets industry standards.

7.What is the process for return or replacement of ST25DV04KC-IE8S3?

All ST25DV04KC-IE8S3 units undergo pre-shipment inspection (PSI). If there is an issue with ST25DV04KC-IE8S3, 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-IE8S3 part is unused and in its original packaging.

Return procedure for ST25DV04KC-IE8S3:

1.Submit a request within 90 days.

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

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