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

STMicroelectronics ST25DV04KC-IE8C3

Name: ST25DV04KC-IE8C3
Brand: STMicroelectronics
SKU: ST25DV04KC-IE8C3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ST25DV04KC-IE8C3

Manufacturer:: STMicroelectronics

Category:: RFID, RF Access, Monitoring ICs

Package:: 8-UFDFN Exposed Pad

Datasheet:: ST25DV04KC-IE8C3.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ST25DV04KC-IE8C3 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 interaction are required.

For engineers reviewing the ST25DV04KC-IE8C3 datasheet, ST25DV04KC-IE8C3 pinout, ST25DV04KC-IE8C3 application, or ST25DV04KC-IE8C3 equivalent, key selection criteria include I²C-to-RF mailbox latency, configurable GPO event triggering (field change, write completion), RF password protection granularity, and package-specific LPD/VDCG support for low-power modes.

Technical Context

The device implements a dual-interface architecture: I²C serial link (up to 1 MHz) for wired host control and ISO/IEC 15693-compliant RF interface (13.56 MHz) for contactless access. Memory is organized into 512 bytes (I²C byte-addressable) or 128 blocks of 4 bytes (RF block-addressable), with four user-configurable protection areas secured by independent 64-bit passwords per interface.

It integrates an analog energy harvesting output (V_E_H), a programmable GPO supporting open-drain (SO8/TSSOP8/UFDFPN8) or CMOS (WLCSP10/UFDFPN12) output types, and a 256-byte volatile mailbox enabling fast data exchange between I²C and RF domains without EEPROM wear. Low-power mode is enabled via LPD pin only in 10-ball 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 retention
I²C interface speed	Up to 1 MHz protocol support; allows high-speed host configuration and bulk data loading without bus contention delays
RF interface standard	ISO/IEC 15693 & NFC Forum Type 5 certified; ensures interoperability with commercial NFC readers and smartphones
Fast transfer buffer	256-byte dedicated volatile mailbox; eliminates EEPROM write cycles during I²C↔RF data handoff, extending endurance
Write endurance	1 million cycles at 25 °C; supports frequent reprogramming in maintenance or calibration workflows
Data retention	40 years at 25 °C; guarantees long-term integrity of stored configuration or calibration parameters
Supply voltage range	1.8 V to 5.5 V DC; compatible with common microcontroller I/O rails and legacy 3.3/5 V systems
Energy harvesting output	V_E_H analog pin delivers unregulated RF-derived voltage; powers external low-current sensors or comparators without battery

Pinout & Package

ST25DV04KC-IE8C3 is packaged in SO8N (8-pin narrow SOIC), with exposed pad (EP) and open-drain GPO output. This RoHS-compliant ECOPACK2 package supports surface-mount assembly and thermal dissipation via EP.

Pin/Terminal	Circuit Role	Design Meaning
V_CC	DC supply input	Accepts 1.8–5.5 V; powers internal logic and I²C interface; internal regulator isolates RF and DC supplies
V_SS	Ground reference	Common return for V_CC, V_E_H, and analog front-end; must be low-impedance for RF stability
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 clock line; must be pulled up externally; synchronizes all I²C transfers
GPO	Configurable interrupt output	Open-drain output; signals RF field presence, memory write completion, or mailbox activity; requires ≥4.7 kΩ pull-up
V_E_H	Energy harvesting output	Analog voltage source derived from RF field; high-Z when field weak or harvesting disabled; powers external circuitry
AC0 / AC1	RF antenna connection	Differential inputs for external LC tank; internal 28.5 pF tuning capacitance simplifies matching network design
EP	Exposed thermal pad	Must be left floating per datasheet; improves thermal performance but not electrically connected internally

Key Features

Feature	Design Value
NFC Forum Type 5 certification	Guarantees interoperability with Android NFC readers and enterprise RFID infrastructure without custom driver development
Configurable 4-area memory protection	Enables independent read/write password locking per area (three 64-bit RF + one 64-bit I²C password), supporting tiered access control
Fast transfer mode mailbox	256-byte volatile buffer reduces EEPROM write cycles during I²C↔RF data exchange, preserving endurance and latency
Programmable GPO events	Single pin reports RF field detection, memory write completion, or fast-transfer readiness-reducing host polling overhead
Energy harvesting output (V_E_H)	Delivers usable analog voltage from RF field to power external comparators or low-leakage sensors-enabling true battery-free sensing
System configuration password protection	64-bit password secures static registers (UID, AFI, DSFID, ENDA limits), preventing unauthorized reconfiguration of memory layout

Applications

Smart Industrial Labels

Secure Asset Tracking Tags

Use Scenario: Reusable metal-mounted labels on CNC tools store calibration offsets, usage counters, and maintenance logs updated via handheld NFC reader.

IC Role / Device Role / Timing Role: Dual-interface EEPROM node: I²C writes calibration data from PLC controller; RF reads/writes maintenance history from technician's phone.

Use Value: Eliminates manual logbooks; 40-year data retention ensures traceability across equipment lifetime; password-protected areas prevent tampering with factory-set offsets.

Use Scenario: Tamper-evident shipping containers use embedded ST25DV04KC-IE8C3 to log temperature excursions, door openings, and GPS timestamps during transit.

IC Role / Device Role / Timing Role: Secure nonvolatile memory hub: RF interface captures event timestamps from external sensors; I²C updates encryption keys and audit trails from gateway MCU.

Use Value: Independent 64-bit passwords per memory area enable separation of sensor logs (Area 1), audit trail (Area 2), and keys (Area 3), meeting ISO 22000 chain-of-custody requirements.

Self-Powered Sensor Nodes

Medical Device Calibration Tokens

Use Scenario: Wireless pressure sensor in HVAC ducts harvests energy from nearby NFC reader to power local ADC and store min/max readings.

IC Role / Device Role / Timing Role: Energy harvesting manager and data buffer: V_E_H powers external comparator; 256-byte mailbox holds burst-sampled data before RF upload.

Use Value: No battery replacement needed; fast-transfer mode avoids EEPROM wear during frequent sampling; RF readout occurs only during scheduled maintenance scans.

Use Scenario: Disposable infusion pump cartridges embed ST25DV04KC-IE8C3 to store drug ID, dose limits, and calibration coefficients verified at point-of-use.

IC Role / Device Role / Timing Role: Secure calibration vault: Factory-programmed Area 1 holds immutable drug parameters; clinician-writable Area 2 stores usage count and error logs.

Use Value: Prevents off-label drug use via hardware-enforced read protection; UID and DSFID ensure FDA UDI compliance; 1M write cycles support full cartridge lifecycle.

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-IE8C3	16-Kbit EEPROM (2048 bytes), same pinout and feature set; higher memory density with identical timing and protection architecture	Required where >512 bytes of field-updatable calibration or diagnostic data must be stored per device	Select when future firmware expansion or multi-sensor fusion data logging demands >4-Kbit persistent storage
NXP NT3H2111W0FHKH	1-Kbyte EEPROM, NFC Forum Type 4B compliant (ISO/IEC 14443-A), no energy harvesting output, no LPD/GPO flexibility	Limited to simple NDEF message storage; lacks fast-transfer buffer and dual-password memory segmentation	Choose only for cost-sensitive, low-security NFC sticker applications without host-controlled RF interaction or sensor powering needs

Compared with ST25DV16KC-IE8C3, this part trades memory headroom for tighter BOM cost and footprint; versus NT3H2111, it adds critical features for industrial-grade secure data exchange-energy harvesting, mailbox acceleration, and granular RF/I²C password isolation-making it suitable for closed-loop embedded systems.

Availability

ST25DV04KC-IE8C3 is available at Aetrix Electronics and suitable for smart industrial labels, secure asset tracking tags, self-powered sensor nodes, and medical device calibration tokens requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.

Supply support for ST25DV04KC-IE8C3 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, designing and manufacturing microcontrollers, power ICs, sensors, and connectivity solutions for automotive, industrial, and consumer markets.

This device belongs to the ST25 Dynamic NFC tag product line, engineered specifically for battery-free, dual-interface data exchange in industrial IoT, smart packaging, and secure authentication systems where field-powered operation and host-controlled RF interaction are essential.

FAQ

What is the maximum RF data rate supported by ST25DV04KC-IE8C3?

The device supports ISO/IEC 15693 high-speed mode with custom fast read access up to 53 Kbit/s. This is achieved using extended RF commands and optimized internal decoding-distinct from standard 26.48 Kbit/s base rate-and applies to single/multiple block reads over the AC0/AC1 antenna interface.

Can the GPO pin drive an LED directly?

No. The GPO pin is open-drain in the SO8N package (IE8C3 variant) and requires an external pull-up resistor (≥4.7 kΩ) to V_CC. Its output current capability is limited to 2 mA sink, insufficient for direct LED driving; it is intended for logic-level signaling to MCUs or interrupt controllers, not power delivery.

How does energy harvesting work on this IC, and what load can V_E_H drive?

V_E_H outputs unregulated analog voltage derived from the RF carrier field; its value scales with field strength and coil coupling. Datasheet specifies no regulation or current limit-typical output is <1 mA at 2–3 V under strong field. It is designed to power ultra-low-quiescent circuits like comparators or RF wake-up receivers, not active loads.

Is the UID writable or fixed at manufacture?

The 64-bit UID is laser-trimmed and permanently written by STMicroelectronics during wafer sort. It resides in read-only system configuration memory and cannot be altered in the field. UID values are globally unique per die and comply with ISO/IEC 15693 anticollision requirements for inventory operations.

ST25DV04KC-IE8C3 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-UFDFN Exposed Pad

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 ~ 105°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-UFDFPN (2x3)

ST25DV04KC-IE8C3 FAQ

1.How can I place an order for ST25DV04KC-IE8C3 through Aetrix?

Please submit a Request for Quotation (RFQ) for ST25DV04KC-IE8C3 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-IE8C3 reliable?

The price and inventory of ST25DV04KC-IE8C3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST25DV04KC-IE8C3 is usually 5 days.

3.What payment methods are accepted for ST25DV04KC-IE8C3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST25DV04KC-IE8C3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ST25DV04KC-IE8C3?

ST25DV04KC-IE8C3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ST25DV04KC-IE8C3 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-IE8C3?

For technical support, including ST25DV04KC-IE8C3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST25DV04KC-IE8C3 requirements.

6.How does Aetrix verify that ST25DV04KC-IE8C3 is sourced from the original manufacturer or authorized distributors?

All ST25DV04KC-IE8C3 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-IE8C3 meets industry standards.

7.What is the process for return or replacement of ST25DV04KC-IE8C3?

All ST25DV04KC-IE8C3 units undergo pre-shipment inspection (PSI). If there is an issue with ST25DV04KC-IE8C3, 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-IE8C3 part is unused and in its original packaging.

Return procedure for ST25DV04KC-IE8C3:

1.Submit a request within 90 days.

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

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