ST25R3918

Active

Multi-purpose NFC transceiver

Download datasheet Order Direct
Overview
Online design
Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
Get Started
Partner products
Sales Briefcase

Product overview

Description

The ST25R3918 is a multipurpose NFC transceiver supporting NFC reader, passive peer to peer functionality and NFC card emulation mode. This IC is optimized for IOT and other consumer or industrial applications where excellent analog performance is required.
The ST25R3918 is also optimized to achieve good read ranges with low output power, even under noisy and harsh environments, using noise reduction receiver technology.
This IC offers an advanced analog front end (AFE) and a highly integrated data framing system for NFC-A/B (ISO 14443A/B) reader including higher bit rates. NFC-V (ISO 15693) reader is supported up to 53 kbps via streaming mode to read cards.
ISO 18092 passive initiator and target and NFC-A / NFC-F card emulation are also available to ensure communication between end products. This enables device programming or simple NDEF data transfers to interact with Android™ phones or to use Apple® App Clips.
Special stream and transparent modes of the AFE and framing system can be used to implement other custom protocols in reader or card emulation mode.
The ST25R3918 includes a low power wakeup mode to scan for the presence of a card by performing a measurement of the amplitude or phase of the antenna signal. It also contains a low power RC oscillator and wake-up timer to automatically trigger the device after the configured time period and check for a presence of a tag.
The ST25R3918 is designed to operate from a wide power supply range (2.6 to 5.5 V from -40 °C to +105 °C, 2.4 to 5.5 V from -20 °C to +105 °C), and a wide peripheral IO voltage range (from 1.65 to 5.5 V).
  • All features

    • Operating modes
      • Reader/writer
      • Card emulation
      • Passive peer to peer
    • RF communication
      • NFC-A / ISO14443A up to 848 kbit/s
      • NFC-B / ISO14443B up to 848 kbit/s
      • NFC-V / ISO15693 up to 53 kb/s
      • NFC-A / ISO14443A and NFC-F / FeliCa™ card emulation
      • Low level modes to implement MIFARE Classic® compliant or other custom protocols
    • Key features
      • Dynamic power output (DPO) controls the field strength to stay within given limits
      • Active wave shaping (AWS) reduces over-and under-shoots
      • Noise suppression receiver (NSR) allows reception in noisy environment
      • Automatic gain control and squelch feature to maximize SNR
      • Low power inductive card detection
      • Low power NFC passive target modes
      • Adjustable ASK modulation depth, from 5 to 40%
      • Integrated regulators to boost system PSRR
      • AM/PM and I/Q demodulator with baseband channel summation or automatic channel selection
      • Possibility to drive two independent single ended antennas
      • Measurement of antenna voltage amplitude and phase, RSSI, on-chip supply and regulated voltages
    • External communication interfaces
      • 512-byte FIFO
      • Serial peripheral interface (SPI) up to 10 Mbit/s
      • I2C with up to 400 kbit/s in Fast-mode, 1 Mbit/s in Fast-mode Plus, and 3.4 Mbit/s in High-speed mode
    • Electrical characteristics
      • Wide supply voltage and ambient temperature range (2.6 to 5.5 V from -40 °C to +105 °C, 2.4 to 5.5 V from -20 °C to +105 °C)
      • Wide peripheral communication supply range, from 1.65 to 5.5 V
      • Quartz oscillator capable of operating with 27.12 MHz crystal with fast start-up

You might also like...

Recommended for you

All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      ST25R3916-DISCO

      Active

      Discovery kit for the ST25R3916 high performance NFC universal device and EMVCo reader

      ST25 NFC/RFID Eval Boards ST
      ST25R3916-DISCO

      Description:

      Discovery kit for the ST25R3916 high performance NFC universal device and EMVCo reader
    • Part number
      Status
      Description
      Type
      Supplier

      STSW-ST25R004

      Active

      Antenna Matching Tool for ST25R NFC/HF reader family

      ST25 - NFC / RFID Software ST
      STSW-ST25R004

      Description:

      Antenna Matching Tool for ST25R NFC/HF reader family

      STSW-ST25R010

      Active

      PC software installer for ST25R3916-DISCO

      ST25 - NFC / RFID Software ST
      STSW-ST25R010

      Description:

      PC software installer for ST25R3916-DISCO

      STSW-ST25R011

      Active

      Firmware for ST25R3916-DISCO kit

      ST25 - NFC / RFID Software ST
      STSW-ST25R011

      Description:

      Firmware for ST25R3916-DISCO kit

      STSW-ST25R013

      Active

      Linux demo of ST25R3916 for Raspberry Pi using X-NUCLEO-NFC06A1

      ST25 - NFC / RFID Software ST
      STSW-ST25R013

      Description:

      Linux demo of ST25R3916 for Raspberry Pi using X-NUCLEO-NFC06A1

      STSW-ST25RFAL002

      Active

      RFAL for ST25R3916

      ST25 - NFC / RFID Software ST
      STSW-ST25RFAL002

      Description:

      RFAL for ST25R3916
    • Part number
      Status
      Description
      Type
      Supplier

      X-NUCLEO-NFC06A1

      Active

      NFC card reader expansion board based on ST25R3916 for STM32 and STM8 Nucleos

      STM32 ODE Connect HW ST
      X-NUCLEO-NFC06A1

      Description:

      NFC card reader expansion board based on ST25R3916 for STM32 and STM8 Nucleos

EDA Symbols, Footprints and 3D Models

STMicroelectronics - ST25R3918

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST25R3918-AQWT
Active
VFQFPN 5X5X1 32L WETTABLE FLANKS Industrial Ecopack2

ST25R3918-AQWT

Package:

VFQFPN 5X5X1 32L WETTABLE FLANKS

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 5X5X1 32L WETTABLE FLANKS

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
ST25R3918-AQWT Available at 2 distributors

Distributor availability ofST25R3918-AQWT

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 92 1 Order Now
Farnell Element14 EUROPE 100 1 Order Now

Distributor reported inventory date: 2021-06-20

Distributor Name

MOUSER

Stock

92

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-06-20

Buy Direct
Active
EAR99 NEC Tape And Reel VFQFPN 5X5X1 32L WETTABLE FLANKS -40 125 THAILAND 1.8 / 1k

ST25R3918-AQWT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.8 / 1k

Distributor availability ofST25R3918-AQWT

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 92 1 Order Now
Farnell Element14 EUROPE 100 1 Order Now

Distributor reported inventory date: 2021-06-20

Distributor Name

MOUSER

Stock

92

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-06-20

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

VFQFPN 5X5X1 32L WETTABLE FLANKS

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

1.8 / 1k

Country of Origin

THAILAND

(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors