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

STMicroelectronics ST25DV64K-JFR8D3

Name: ST25DV64K-JFR8D3
Brand: STMicroelectronics
SKU: ST25DV64K-JFR8D3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ST25DV64K-JFR8D3

Manufacturer:: STMicroelectronics

Category:: RFID, RF Access, Monitoring ICs

Package:: 12-UFDFN Exposed Pad

Datasheet:: ST25DV64K-JFR8D3.pdf

Description:: IC RFID TRANSP 13.56MHZ 12UFDFPN

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Product details

Overview

ST25DV64K-JFR8D3 from STMicroelectronics is a dynamic NFC/RFID tag IC with dual I²C and ISO/IEC 15693 contactless interfaces, 64 Kbit EEPROM (8192 bytes via I²C / 2048 blocks × 4 bytes via RF), 256-byte fast-transfer buffer, and energy harvesting output (V_EH). It operates from 1.8–5.5 V, supports 1 MHz I²C, and delivers up to 53 Kbit/s RF read speed - deployed in smart industrial labels, secure asset tagging, and NFC-enabled sensor nodes.

For engineers reviewing the ST25DV64K-JFR8D3 datasheet, ST25DV64K-JFR8D3 pinout, ST25DV64K-JFR8D3 application, or ST25DV64K-JFR8D3 equivalent, key selection criteria include RF/I²C coexistence timing, GPO event configuration (field change, write completion, mailbox availability), password-protected memory segmentation (four user areas), and LPD-enabled low-power mode in 10-ball/12-pin packages.

Technical Context

The device implements a dual-world architecture: I²C interface accesses EEPROM at byte granularity for host-controlled configuration and data logging, while RF interface complies fully with ISO/IEC 15693 and NFC Forum Type 5, supporting all modulations, sub-carrier modes, and data rates up to 53 Kbit/s. Its internal 28.5 pF tuning capacitance eliminates external matching components.

Fast Transfer Mode uses a dedicated 256-byte volatile buffer (Mailbox) to enable high-speed bidirectional data exchange between I²C and RF domains without EEPROM wear; GPO pin provides configurable CMOS-level interrupts (e.g., RF field detection, Fast Transfer end) when V_DCG is supplied - available only on JF-version packages (WLCSP10, UFDFPN12).

Key Specifications

Parameter	Value and Actual Design Meaning
Memory capacity	64 Kbit EEPROM = 8192 bytes (I²C) / 2048 blocks × 4 bytes (RF); enables large firmware metadata or calibration tables in NFC-tagged devices.
I²C interface	1 MHz max clock rate; supports standard/fast-mode-plus timing; open-drain SDA/SCL require external pull-ups; enables real-time host updates without RF dependency.
RF interface	ISO/IEC 15693 & NFC Forum Type 5 certified; supports 26/53 Kbit/s read; no external tuning needed due to integrated 28.5 pF capacitance.
Fast Transfer Buffer	256-byte volatile Mailbox; allows atomic data handoff between I²C and RF worlds; avoids EEPROM endurance wear during frequent sync operations.
Data retention	40 years at 25 °C; ensures long-term integrity of calibration data, serial numbers, or configuration stored in industrial environments.
Write endurance	1 million cycles at 25 °C; degrades to 400 k at 125 °C (SO8/TSSOP8); critical for applications requiring repeated field-programmable updates.
Energy harvesting	V_EH analog output delivers unregulated RF-derived voltage to power external sensors or logic; active only under sufficient RF field strength.

Pinout & Package

ST25DV64K-JFR8D3 is packaged in UFDFPN8 (8-pin, 2 × 3 mm, 0.5 mm pitch), RoHS-compliant ECOPACK2. This variant features open-drain GPO output and lacks LPD/V_DCG pins - distinguishing it from WLCSP10 and UFDFPN12 versions.

Pin/Terminal	Circuit Role	Design Meaning
V_CC	DC supply input	1.8–5.5 V wired power source; powers I²C interface and internal regulator; decoupling capacitor (10–100 nF) required near pin.
V_SS	Ground reference	Common return for V_CC, SDA, SCL, and V_EH; must be low-impedance connection to minimize noise coupling into RF front-end.
SCL	I²C clock input	Open-drain input; requires external pull-up; synchronizes byte transfers; bus master must tolerate clock stretching during EEPROM writes (t_W ≈ 5 ms).
SDA	I²C bidirectional data	Open-drain I/O; shared bus line; pull-up resistor mandatory; supports multi-master arbitration and ACK/NACK signaling.
GPO	Configurable interrupt output	Open-drain output; defaults to RF field change detection; can signal memory write completion or Fast Transfer events; requires external pull-up ≥4.7 kΩ.
V_EH	Energy harvesting output	Analog voltage output derived from RF carrier; high-Z when inactive; supplies external circuitry only when RF field strength exceeds threshold.
AC0 / AC1	RF antenna connection	Differential inputs for external LC tank; no DC bias or additional AC paths permitted; direct connection to tuned coil essential for ISO/IEC 15693 compliance.

Key Features

Feature	Design Value
Four configurable memory areas	User EEPROM segmented into four zones, each independently protected by 64-bit RF/I²C passwords - enabling tiered access control for firmware, calibration, logs, and user data.
Dynamic register access	Real-time status registers (e.g., RF activity flag, mailbox full) readable/writable via both I²C and RF - enabling host and reader to coordinate state without EEPROM writes.
Low-power down mode	Not supported in UFDFPN8 (JFR8D3); available only in WLCSP10/UFDFPN12 via LPD pin - reduces standby current below 1 µA when LPD is high.
NFC Forum Type 5 certification	Validated interoperability with NFC smartphones and readers per NFC Forum specifications - guarantees reliable tap-to-read/write behavior in consumer and industrial UX.
Fast data transfer buffer	256-byte Mailbox enables burst transfers between I²C host and RF reader without EEPROM wear - ideal for time-sensitive sensor data synchronization.

Applications

Smart Industrial Labels

Secure Asset Tagging

Use Scenario: NFC-enabled metal tags affixed to CNC machine tools store maintenance history, calibration offsets, and firmware version.

IC Role / Device Role / Timing Role: Dual-interface EEPROM acts as persistent, field-updatable memory hub; I²C updated during maintenance windows, RF read by technician's phone.

Use Value: Eliminates manual logbooks; enables traceable, tamper-resistant service records with password-protected write zones for OEM vs. end-user access.

Use Scenario: High-value medical imaging equipment tagged with ST25DV64K-JFR8D3 for anti-counterfeiting and regulatory audit trails.

IC Role / Device Role / Timing Role: Stores encrypted UID, AFI/DSFID, and digitally signed certificates; RF interface validates authenticity during pre-use scan.

Use Value: Prevents unauthorized replacement parts; meets FDA 21 CFR Part 11 requirements via hardware-enforced write protection and unique identifier binding.

NFC-Enabled Sensor Nodes

Calibration Data Vault

Use Scenario: Wireless temperature/humidity sensor node powered by energy harvesting (V_EH) during NFC interrogation.

IC Role / Device Role / Timing Role: Acts as passive RF-powered data sink and I²C-configurable sensor interface; GPO pulses wake microcontroller upon field detection.

Use Value: Enables battery-free commissioning and diagnostics; leverages RF energy for short-duration sensing bursts without onboard power.

Use Scenario: Precision test equipment stores factory calibration coefficients, date stamps, and linearity corrections in EEPROM.

IC Role / Device Role / Timing Role: Provides non-volatile, 40-year-retention storage accessible via lab PC (I²C) or handheld calibrator (RF); Area 1 locked read-only for coefficients.

Use Value: Ensures metrological traceability; prevents accidental overwrites via three-tier password protection (RF read/write + I²C write).

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ST25DV64K-JFQ8D3	Same die, but in UFDFPN12 package with LPD and V_DCG pins; supports CMOS GPO and low-power down mode.	Required where system-level power gating or precise GPO pulse timing (e.g., MCU wake-up) is needed - not feasible in JFR8D3's open-drain-only 8-pin package.	Select JFQ8D3 if LPD-triggered ultra-low standby (<1 µA) or V_DCG-driven CMOS GPO is mandatory; otherwise JFR8D3 offers cost and footprint advantage.
NT3H2211W0FHKH	NXP part with 2 Kbyte EEPROM, no Fast Transfer buffer, no energy harvesting output, and only basic RF/I²C coexistence (no mailbox).	Suitable for simple NFC tag use cases (e.g., URL storage), but lacks dual-interface synchronization capability and high-endurance EEPROM for firmware metadata.	Choose NT3H2211 only for cost-sensitive, low-data-volume applications without need for buffered I²C↔RF handoff or V_EH power delivery.

Compared with ST25DV64K-JFQ8D3, JFR8D3 trades LPD/V_DCG support for smaller size and lower BOM count; versus NT3H2211, it delivers 32× more memory, certified Type 5 interoperability, and hardware-accelerated interface bridging - making it essential for industrial-grade NFC edge devices.

Availability

ST25DV64K-JFR8D3 is available at Aetrix Electronics and suitable for smart industrial labeling, secure asset tracking, and NFC-enabled sensor node development requiring stable component supply across automotive-grade temperature ranges (–40 to 85 °C).

Supply support for ST25DV64K-JFR8D3 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.

ST25DV64K belongs to the ST25 Dynamic NFC tag product line, engineered specifically for robust dual-interface (I²C + RF) data exchange in harsh environments - targeting applications demanding secure, field-upgradable memory with NFC smartphone compatibility.

FAQ

What is the maximum RF read speed supported by ST25DV64K-JFR8D3?

The device supports custom fast read access up to 53 Kbit/s per ISO/IEC 15693, achieved using extended RF commands and optimized internal timing. This is double the base 26 Kbit/s rate and requires compatible readers - standard NFC phones typically operate at 26 Kbit/s unless explicitly supporting high-speed extensions.

Can the GPO pin be used to wake an external microcontroller?

Yes - GPO is configurable to assert on RF field detection, Fast Transfer completion, or memory write events. In UFDFPN8 (JFR8D3), it operates as an open-drain output requiring an external pull-up; the resulting low-level pulse or level change can trigger a GPIO interrupt on a connected MCU, enabling zero-power standby wake-up.

How does memory protection work across I²C and RF interfaces?

User memory is divided into four configurable areas, each protected by independent 64-bit passwords: three for RF (read/write) and one for I²C (write-only). System configuration registers are secured by a separate 64-bit RF/I²C password. Passwords are stored in dedicated EEPROM blocks and enforced in hardware - no software stack required for enforcement.

Is energy harvesting functional in the UFDFPN8 package?

Yes - V_EH is present and operational in all ST25DV64K variants, including JFR8D3. It delivers unregulated analog voltage derived from the RF carrier field; output is high-Z when field strength is insufficient. No package-dependent limitation exists - functionality depends solely on external antenna tuning and reader field strength.

ST25DV64K-JFR8D3 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: ST25D

Package/Case:: 12-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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 12-UFDFPN (3x3)

ST25DV64K-JFR8D3 FAQ

1.How can I place an order for ST25DV64K-JFR8D3 through Aetrix?

Please submit a Request for Quotation (RFQ) for ST25DV64K-JFR8D3 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 ST25DV64K-JFR8D3 reliable?

The price and inventory of ST25DV64K-JFR8D3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST25DV64K-JFR8D3 is usually 5 days.

3.What payment methods are accepted for ST25DV64K-JFR8D3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST25DV64K-JFR8D3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ST25DV64K-JFR8D3?

ST25DV64K-JFR8D3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ST25DV64K-JFR8D3 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 ST25DV64K-JFR8D3?

For technical support, including ST25DV64K-JFR8D3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST25DV64K-JFR8D3 requirements.

6.How does Aetrix verify that ST25DV64K-JFR8D3 is sourced from the original manufacturer or authorized distributors?

All ST25DV64K-JFR8D3 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 ST25DV64K-JFR8D3 meets industry standards.

7.What is the process for return or replacement of ST25DV64K-JFR8D3?

All ST25DV64K-JFR8D3 units undergo pre-shipment inspection (PSI). If there is an issue with ST25DV64K-JFR8D3, 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 ST25DV64K-JFR8D3 part is unused and in its original packaging.

Return procedure for ST25DV64K-JFR8D3:

1.Submit a request within 90 days.

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

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