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

STMicroelectronics ST25DV16K-IER6S3

Name: ST25DV16K-IER6S3
Brand: STMicroelectronics
SKU: ST25DV16K-IER6S3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ST25DV16K-IER6S3

Manufacturer:: STMicroelectronics

Category:: RFID, RF Access, Monitoring ICs

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

Datasheet:: ST25DV16K-IER6S3.pdf

Description:: IC RFID TRANSP 13.56MHZ 8SO

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ST25DV16K-IER6S3 from STMicroelectronics is a dynamic NFC/RFID tag IC with dual-interface architecture (I²C + ISO/IEC 15693 RF), 16 Kbit EEPROM, fast transfer mode via 256-byte volatile buffer, and energy harvesting output (V_E_H). It serves as a secure, contactless memory bridge in industrial asset tagging, smart packaging, and IoT sensor nodes where battery-free operation and host-controlled configuration are required.

For engineers reviewing the ST25DV16K-IER6S3 datasheet, ST25DV16K-IER6S3 pinout, ST25DV16K-IER6S3 application, or ST25DV16K-IER6S3 equivalent, key selection criteria include I²C-to-RF mailbox latency, RF field detection via GPO interrupt, configurable password-protected memory areas, and support for NFC Forum Type 5 certification at 53 Kbit/s fast read.

Technical Context

This device implements a dual-domain memory controller: I²C interface accesses user memory byte-wise (up to 2048 bytes), while RF interface accesses it block-wise (512 blocks × 4 bytes), with independent protection schemes per area. The 256-byte fast transfer buffer enables deterministic data handoff between wired and contactless domains without host polling.

Its RF subsystem complies fully with ISO/IEC 15693 - supporting all modulations (100% ASK, 10% ASK), sub-carrier modes (single/dual), and data rates (26.48 kbit/s, 53 kbit/s). The analog energy harvesting output (V_E_H) delivers unregulated voltage proportional to incident RF field strength, usable to power external low-current circuitry.

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 updates without bus contention
RF data rate (fast mode)	53 Kbit/s - reduces tag interrogation time in high-throughput reader environments
Write endurance	1 million cycles at 25 °C - supports frequent firmware or calibration data updates in field-deployed devices
Data retention	40 years - ensures long-term integrity of calibration, serial, or security data across product lifecycle
Supply voltage range	1.8 V to 5.5 V - compatible with common microcontroller I/O rails and legacy industrial power domains
Operating temperature	–40 °C to 85 °C (Range 6) - validated for use in industrial control cabinets and outdoor enclosures

Pinout & Package

ST25DV16K-IER6S3 is supplied in an 8-pin UFDFPN8 (2.0 × 2.0 mm, 0.4 mm pitch) package with ECOPACK2 RoHS compliance. Pin 1 is marked by a dot; exposed pad (EP) must remain floating.

Pin/Terminal	Circuit Role	Design Meaning
AC0 / AC1	RF antenna interface	Differential inputs for external LC tank; no DC path allowed - requires precise impedance matching to 53.7 Ω for ISO/IEC 15693 resonance
V_CC	DC supply input	Accepts 1.8–5.5 V; powers internal logic and I²C interface; internal regulator isolates RF rectified supply
V_SS	Ground reference	Common return for V_CC, V_DCG, and V_E_H; must be low-impedance connection to minimize noise coupling into RF front-end
SDA	I²C bidirectional data	Open-drain I/O requiring external pull-up (≥4.7 kΩ); supports multi-master arbitration and clock stretching
SCL	I²C clock input	Open-drain input; master-driven timing signal; rise/fall times constrained by bus capacitance and pull-up value
GPO	Configurable interrupt output	Open-drain output (ST25DV16K-IE variant); signals RF field change, write completion, or mailbox availability; requires external pull-up
V_E_H	Energy harvesting output	Analog voltage source (unregulated); active only during sufficient RF field strength; used to bias external comparators or low-power sensors

Key Features

Feature	Design Value
ISO/IEC 15693 & NFC Forum Type 5 certified	Guarantees interoperability with commercial NFC readers and smartphones without proprietary stack development
256-byte fast transfer buffer (mailbox)	Enables zero-latency handoff of sensor logs or configuration data between MCU (I²C) and reader (RF), eliminating polling overhead
Four configurable password-protected memory areas	Allows independent read/write lock on calibration data (Area 1), firmware metadata (Area 2), user settings (Area 3), and logs (Area 4)
Programmable GPO interrupt events	Reduces host MCU wake-up frequency by triggering on RF field presence, memory write completion, or mailbox full condition
On-chip 28.5 pF tuning capacitance	Minimizes external component count for antenna matching - eliminates need for discrete trim capacitors in space-constrained designs

Applications

Industrial Asset Tagging

Smart Packaging Authentication

Use Scenario: Permanent attachment to motor control cabinets, PLC enclosures, or valve manifolds for maintenance history logging and firmware version tracking.

IC Role / Device Role / Timing Role: Dual-interface EEPROM acting as tamper-resistant service log storage, updated via I²C during commissioning and read via NFC during field audits.

Use Value: Eliminates manual recordkeeping; enables instant verification of calibration date, last service technician ID, and firmware revision using standard NFC smartphones.

Use Scenario: Embedded in pharmaceutical blister packs or luxury cosmetics boxes to verify authenticity and track distribution chain integrity.

IC Role / Device Role / Timing Role: Secure NFC tag storing cryptographic challenge-response tokens and batch-specific hash values, accessed only after successful password authentication.

Use Value: Prevents counterfeiting by enabling brand owners to issue unique, non-clonable identifiers tied to production lot and expiration date.

IoT Sensor Node Configuration

Tool Calibration Certificate Storage

Use Scenario: Mounted on wireless temperature/humidity sensors deployed in HVAC ducts or cold-chain logistics containers.

IC Role / Device Role / Timing Role: Host-configurable memory holding sensor offset corrections, calibration coefficients, and installation location ID - written once via I²C, read repeatedly via NFC.

Use Value: Enables field recalibration without disassembly; technicians update coefficients using handheld NFC readers, avoiding firmware reflash or physical access.

Use Scenario: Integrated into torque wrenches, multimeters, or oscilloscope probes to store NIST-traceable calibration certificates and expiry dates.

IC Role / Device Role / Timing Role: Tamper-evident certificate repository with write-protection enforced by 64-bit RF passwords; read-accessible via NFC-enabled calibration labs.

Use Value: Replaces paper certificates; guarantees audit trail integrity and eliminates manual entry errors during calibration reporting.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-interface NFC tag applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
NXP NT3H2211W0FHKH	1 Kbyte EEPROM, no energy harvesting output, integrated 13.56 MHz antenna matching network	Limited to low-data applications (e.g., simple UID + URL); lacks V_E_H for powering companion circuitry	Select when board space is critical and external antenna tuning is undesirable; not suitable for sensor node power harvesting.
ON Semiconductor N24RF16	16 Kbit EEPROM, I²C-only interface, no RF capability, no GPO or fast transfer buffer	Fully wired solution; requires physical connector access; no contactless read/write capability	Select only if NFC functionality is unnecessary and cost sensitivity outweighs field-service flexibility.

Compared with NT3H2211W0FHKH and N24RF16, ST25DV16K-IER6S3 uniquely combines 16 Kbit dual-interface memory, certified NFC Type 5 operation, energy harvesting output, and 256-byte mailbox - making it the only option supporting battery-free sensor augmentation and deterministic host-to-reader data synchronization.

Availability

ST25DV16K-IER6S3 is available at Aetrix Electronics and suitable for industrial asset tagging, smart packaging authentication, and IoT sensor node configuration requiring stable component supply, full NFC Forum certification, and long-term data retention.

Supply support for ST25DV16K-IER6S3 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 identification and data exchange in resource-constrained edge devices - emphasizing NFC interoperability, ultra-low-power RF operation, and robust memory protection for industrial traceability and anti-counterfeiting.

FAQ

What is the function of the V_E_H pin, and what load can it drive?

The V_E_H pin delivers unregulated analog voltage derived from the RF field's rectified energy. It operates only when RF field strength exceeds threshold (~3 A/m) and presents high output impedance. It can source ≤10 µA continuously - sufficient to bias comparator inputs or enable low-leakage MOSFET switches, but not to power active ICs or LEDs.

How does the 256-byte fast transfer buffer operate between I²C and RF domains?

The buffer acts as a volatile mailbox: I²C writes data to buffer addresses 0x00–0xFF; RF reads them via Fast Read commands, and vice versa. No CPU intervention is needed - the hardware automatically manages buffer state flags (e.g., "data ready", "acknowledged"). Transfer completes in <100 µs, enabling real-time sensor log handoff without host polling.

Can memory areas be reconfigured in the field, and what security prevents unauthorized changes?

Yes - ENDA registers defining area boundaries are writable via I²C or RF after opening a password-protected security session. Three 64-bit RF passwords and one 64-bit I²C password guard area configuration. Unauthorized attempts return error code 0Fh (RF) or NoAck (I²C), and no register modification occurs.

Is the GPO pin compatible with both open-drain and CMOS logic families?

No - ST25DV16K-IER6S3 uses the -IE suffix, indicating open-drain GPO output. It requires an external pull-up resistor (>4.7 kΩ) to V_CC. CMOS GPO (with V_DCG supply) is only available in -JF variants (e.g., ST25DV16K-JFR6S3), which are physically distinct and not pin-compatible.

ST25DV16K-IER6S3 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

Interface:: I2C

Voltage - Supply:: 1.8V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

ST25DV16K-IER6S3 FAQ

1.How can I place an order for ST25DV16K-IER6S3 through Aetrix?

Please submit a Request for Quotation (RFQ) for ST25DV16K-IER6S3 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-IER6S3 reliable?

The price and inventory of ST25DV16K-IER6S3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST25DV16K-IER6S3 is usually 5 days.

3.What payment methods are accepted for ST25DV16K-IER6S3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST25DV16K-IER6S3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ST25DV16K-IER6S3?

ST25DV16K-IER6S3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ST25DV16K-IER6S3 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-IER6S3?

For technical support, including ST25DV16K-IER6S3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST25DV16K-IER6S3 requirements.

6.How does Aetrix verify that ST25DV16K-IER6S3 is sourced from the original manufacturer or authorized distributors?

All ST25DV16K-IER6S3 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-IER6S3 meets industry standards.

7.What is the process for return or replacement of ST25DV16K-IER6S3?

All ST25DV16K-IER6S3 units undergo pre-shipment inspection (PSI). If there is an issue with ST25DV16K-IER6S3, 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-IER6S3 part is unused and in its original packaging.

Return procedure for ST25DV16K-IER6S3:

1.Submit a request within 90 days.

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

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