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

STMicroelectronics ST25DV16K-IER8S3

Name: ST25DV16K-IER8S3
Brand: STMicroelectronics
SKU: ST25DV16K-IER8S3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ST25DV16K-IER8S3

Manufacturer:: STMicroelectronics

Category:: RFID, RF Access, Monitoring ICs

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

Datasheet:: ST25DV16K-IER8S3.pdf

Description:: IC RFID TRANSP 13.56MHZ 8SO

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ST25DV16K-IER8S3 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, and fast transfer mode using a 256-byte volatile buffer. It operates from 1.8–5.5 V and serves as a secure, field-powered memory bridge in smart labels and IoT edge nodes.

For engineers reviewing the ST25DV16K-IER8S3 datasheet, ST25DV16K-IER8S3 pinout, ST25DV16K-IER8S3 application, or ST25DV16K-IER8S3 equivalent, key selection criteria include RF/I²C coexistence timing, GPO interrupt configuration for field-change detection, energy harvesting analog output (V_EH) capability, and multi-level password protection across four user memory areas.

Technical Context

The device implements a dual-domain architecture: an I²C interface accesses EEPROM byte-wise for host-controlled configuration and data staging, while the 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 in fast read mode. The internal 28.5 pF tuning capacitance eliminates external matching components for standard antenna designs.

Its fast transfer mode uses a dedicated 256-byte half-duplex buffer to shuttle data between RF and I²C domains without host intervention; the GPO pin signals events including RF field change, memory write completion, and mailbox availability. Energy harvesting output (V_EH) delivers unregulated analog voltage when RF field strength exceeds threshold - usable to power low-current external sensors or logic.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory capacity	16 Kbit EEPROM = 2048 bytes (I²C) / 512 blocks × 4 bytes (RF)
I²C interface speed	Up to 1 MHz - enables high-throughput host-side data loading without bus contention
RF interface standard	ISO/IEC 15693 & NFC Forum Type 5 certified - ensures interoperability with commercial readers and smartphones
Write endurance	1 million cycles at 25 °C - supports frequent firmware/data updates in industrial logging applications
Data retention	40 years at 25 °C - guarantees long-term integrity of calibration data or device identity stored in EEPROM
Supply voltage range	1.8 V to 5.5 V - compatible with battery-powered, USB, and industrial 3.3 V/5 V systems
Fast transfer buffer	256-byte volatile mailbox - enables atomic handoff of sensor data from RF reader to microcontroller without polling

Pinout & Package

ST25DV16K-IER8S3 is supplied in an 8-pin UFDFPN8 package (ECOPACK2, RoHS compliant), with exposed pad (EP) for thermal management. Pin functions are validated per DS10925 Rev 11 (pages 4–5).

Pin/Terminal	Circuit Role	Design Meaning
AC0 / AC1	RF antenna coil terminals	Differential inputs for ISO/IEC 15693 carrier coupling; no DC path permitted - direct connection to tuned loop antenna only
V_CC	Main supply input	DC power source (1.8–5.5 V); powers I²C interface and internal regulator - isolates RF rectified supply from V_CC pin
V_SS	Ground reference	Common return for V_CC, V_DCG, and V_EH; must be low-impedance connection to minimize noise on RF and analog paths
SDA	I²C bidirectional data line	Open-drain I/O requiring external pull-up (>4.7 kΩ to V_CC); supports multi-master arbitration and clock stretching
SCL	I²C clock input	Open-drain input requiring external pull-up; synchronizes all I²C transactions - tolerates bus hold time up to 10 µs
GPO	Configurable interrupt output	Open-drain output (ST25DV16K-IER8S3 variant); signals RF field change, write completion, or mailbox status - requires external pull-up
V_EH	Energy harvesting analog output	Unregulated analog voltage sourced from RF rectifier - usable to power external comparators or low-I_Q sensors when field strength suffices
EP	Exposed thermal pad	Internally connected to V_SS; must be soldered to PCB ground plane for thermal dissipation and RF stability

Key Features

Feature	Design Value
Two independent memory access domains	I²C byte-addressable + RF block-addressable (4-byte blocks) - enables simultaneous host configuration and reader-initiated data retrieval
Four configurable password-protected memory areas	Three 64-bit RF passwords + one 64-bit I²C password - allows granular read/write lock per zone (e.g., UID read-only, config write-protected)
Fast transfer mode buffer	256-byte volatile mailbox - eliminates host polling by enabling event-driven data exchange between contact and contactless worlds
GPO interrupt configurability	Field change, RF activity, write completion, fast transfer end - reduces MCU wake-up latency and system power in always-on sensing nodes
Integrated 28.5 pF tuning capacitance	No external capacitor required for standard 13.56 MHz antenna matching - simplifies layout and improves RF yield in high-volume label production

Applications

Smart Industrial Labels

Secure Asset Tracking Tags

Use Scenario: Reusable metal-mount RFID labels on factory tools storing calibration history, maintenance logs, and operator IDs.

IC Role / Device Role / Timing Role: Dual-interface EEPROM bridge - I²C writes new calibration data during tool docking; RF reads full history during QA scan.

Use Value: Eliminates manual data entry errors and enables offline logging even when tool is not docked; 40-year data retention preserves lifetime traceability.

Use Scenario: Tamper-evident shipping containers with encrypted serial numbers, origin timestamps, and temperature exposure flags.

IC Role / Device Role / Timing Role: Secure NFC tag - RF interface validates authenticity via password-protected UID and AFI/DSFID; I²C updates flags during warehouse handoff.

Use Value: Prevents cloning via three-tier RF password protection and write-cycle-limited configuration registers - meets ISO/IEC 15693 anti-counterfeiting requirements.

Energy-Harvesting Sensor Nodes

IoT Edge Configuration Hubs

Use Scenario: Battery-free environmental sensors powered solely by reader field, transmitting humidity/temperature snapshots on demand.

IC Role / Device Role / Timing Role: RF-powered memory + energy harvesting source - V_EH powers signal conditioning circuitry; fast transfer mode buffers readings for immediate RF upload.

Use Value: Enables zero-battery operation in inaccessible locations; 53 Kbit/s fast read cuts reader dwell time by >60% vs. standard ISO/IEC 15693.

Use Scenario: Field-upgradable gateways where configuration parameters (IP, keys, firmware URLs) are loaded via NFC before deployment.

IC Role / Device Role / Timing Role: Secure configuration vault - I²C writes encrypted settings during manufacturing; RF interface provides authenticated read-only access in field.

Use Value: Prevents unauthorized parameter changes via I²C password lock and RF write-disable; 1 million write cycles support repeated reconfiguration over product lifetime.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ST25DV04K-IER8S3	4 Kbit EEPROM (512 bytes / 128 blocks), same pinout and feature set	Limited to small configuration payloads or short event logs - insufficient for multi-sensor datasets	Select when memory budget is constrained and fast transfer mode usage is infrequent
ST25DV64K-IER8S3	64 Kbit EEPROM (8192 bytes / 2048 blocks), identical interface and security architecture	Supports extended firmware images, cryptographic keys, or long-duration sensor histories - higher cost and board space	Select when future-proofing for larger data models or multi-application partitioning is required

Compared with ST25DV04K-IER8S3, the ST25DV16K-IER8S3 offers 4× more EEPROM capacity without sacrificing speed, power, or security - making it optimal for mid-complexity industrial tagging where ST25DV04K is too limited and ST25DV64K is over-provisioned.

Availability

ST25DV16K-IER8S3 is available at Aetrix Electronics and suitable for smart industrial labels, secure asset tracking tags, energy-harvesting sensor nodes, and IoT edge configuration hubs requiring stable component supply across automotive-grade temperature ranges and long lifecycle commitments.

Supply support for ST25DV16K-IER8S3 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 ST25DVxxx series targets secure, dual-interface NFC tagging - engineered to unify wired host control with contactless reader access while meeting NFC Forum Type 5 certification and ISO/IEC 15693 interoperability requirements.

FAQ

What is the maximum RF data rate supported by ST25DV16K-IER8S3?

The device supports a custom fast read access mode up to 53 Kbit/s, exceeding the base ISO/IEC 15693 high-data-rate mode (26.48 Kbit/s). This is achieved through optimized command sequencing and internal buffering - verified in DS10925 Rev 11 Section 1.1 and Table 197. No external tuning or firmware update is required to enable this rate.

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

V_EH delivers unregulated analog voltage derived from the RF carrier's rectified waveform - active only when field strength exceeds ~2 A/m and energy harvesting mode is enabled via system register. Output voltage scales with field strength and antenna coupling; typical range is 1.2–3.3 V into 100 kΩ load. It enters high-Z state when disabled or under weak field - confirmed in DS10925 Section 2.5 and Figure 27.

Can the GPO pin be configured to trigger on multiple RF events simultaneously?

Yes - the GPO is programmable to combine up to five RF events (field change, RF activity, memory write completion, fast transfer end, user-set pulse) via the GPO_CFG register. Default behavior is field-change detection, but OR-combined interrupts are supported without external logic - detailed in DS10925 Section 5.2 and Register Map Table 175.

What is the minimum memory area size for password protection in ST25DV16K-IER8S3?

The smallest configurable user memory area is 8 RF blocks (32 bytes), enforced by ENDA register granularity. Area 1 starts at block 0000h and must be ≥32 bytes; all four areas are contiguous and non-overlapping. Factory default configures one area spanning full 512-block memory - defined in DS10925 Section 4.2.1 and Table 3.

ST25DV16K-IER8S3 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: ST25D

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

ST25DV16K-IER8S3 FAQ

1.How can I place an order for ST25DV16K-IER8S3 through Aetrix?

Please submit a Request for Quotation (RFQ) for ST25DV16K-IER8S3 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 ST25DV16K-IER8S3 reliable?

The price and inventory of ST25DV16K-IER8S3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST25DV16K-IER8S3 is usually 5 days.

3.What payment methods are accepted for ST25DV16K-IER8S3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST25DV16K-IER8S3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ST25DV16K-IER8S3?

ST25DV16K-IER8S3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ST25DV16K-IER8S3 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 ST25DV16K-IER8S3?

For technical support, including ST25DV16K-IER8S3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST25DV16K-IER8S3 requirements.

6.How does Aetrix verify that ST25DV16K-IER8S3 is sourced from the original manufacturer or authorized distributors?

All ST25DV16K-IER8S3 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 ST25DV16K-IER8S3 meets industry standards.

7.What is the process for return or replacement of ST25DV16K-IER8S3?

All ST25DV16K-IER8S3 units undergo pre-shipment inspection (PSI). If there is an issue with ST25DV16K-IER8S3, 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 ST25DV16K-IER8S3 part is unused and in its original packaging.

Return procedure for ST25DV16K-IER8S3:

1.Submit a request within 90 days.

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

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