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On today’s computers, keyboards connect with the host most often via a wireless connection and offer a growing number of alternative text-input methods – including microphones – in addition to the classical key matrix.

We have a range of wireless connectivity and power management solutions as well as a wide selection of low-power microcontrollers, MEMS microphones and protection devices for the most demanding battery-operated keyboards.

Part Number	Description
M24SR-DISCOVERY	Discovery kit for the M24SR series - Dynamic NFC/RFID tag	Quick view Key Features Ready-to-use printed circuit board (PCB) including: M24SR64-Y Dynamic NFC/RFID tag 31 mm x 30 mm 13.56 MHz double layer inductive antenna etched on the PCB (ANT14) STM32F103RGT6 64LQFP 32-bit microcontroller, with 1Mbytes of Flash memory LCD Color Screen (320*200 pixels) Different color LEDs USB microB connector for board powering JTAG connector for microcontroller firmware upgrade and debug Joystick for menu selection M24SR-DISCO-PREM specific features: Bluetooth module with audio outputs connected to Jack 3.5 Headset Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
X-NUCLEO-NFC01A1	Dynamic NFC tag expansion board based on M24SR for STM32 Nucleo	Quick view Key Features M24SR64-Y Dynamic NFC/RFID tag IC NFC antenna: 31 mm x 30 mm 13.56 MHz double layer inductive antenna etched on the PCB (ANT14) Compatible with STM32 Nucleo boards Equipped with Arduino UNO R3 connector Powered through the Arduino UNO R3 connectors 3 color LEDs for general purpose Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
X-NUCLEO-NFC04A1	Dynamic NFC/RFID tag IC expansion board based on ST25DV04K for STM32 Nucleo	Quick view Key Features Expansion board based on the ST25DV04K dynamic NFC/RFID tag for STM32 Nucleo Up to 4-Kbit memory with NDEF support 54 mm diameter, single layer circular antenna Compatible with STM32 Nucleo boards Equipped with Arduino™ UNO R3 connector Self-powered or powered through the Arduino™ UNO R3 connectors Three general purpose LEDs Scalable solution, capable of cascading multiple boards for larger systems Free comprehensive development firmware library and example for ST25DV04K, compatible with STM32Cube firmware FCC and IC verified RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-IDB007V2	STEVAL-IDB007V2 evaluation platform based on the BlueNRG-1	Quick view Key Features Bluetooth^® SMART board based on the BlueNRG-1 Bluetooth low energy system on chip Associated BlueNRG-1 development kit SW package including firmware and documentation Up to +8 dBm available output power (at antenna connector) Excellent receiver sensitivity (-88 dBm) Very low power consumption: 7.7 mA RX and 8.2 mA TX at +0 dBm Bluetooth^® low energy compliant, supports master, slave and simultaneous master-and-slave roles New integrated balun BALF-NRG-02D3 which integrates a matching network and harmonics filter SMA connector for antenna or measuring equipment 3 user LEDs 2 user buttons 3D digital accelerometer and 3D digital gyroscope MEMS pressure sensor with embedded temperature sensor Battery holder JTAG debug connector USB to serial bridge for providing I/O channel with the BlueNRG-1 device Jumper for measuring current for BlueNRG-1 only RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
ST25DV-DISCOVERY	Discovery kit for ST25DV04 Dynamic NFC/RFID tag IC with fast transfer mode capability	Quick view Key Features Two ready-to-use printed circuit boards (PCB): ST25DV_Discovery_Mboard: STM32F405VGT6 LQFP100 32-bit microcontroller, with 1 Mbyte Flash memory, 192 + 4 Kbytes SRAM. LCD color screen (320 x 200 pixels) Touch screen driver Different color LEDs (power, user, ST link) User push button Joystick for menu selection Reset button On board ST link for microcontroller firmware upgrade and debug ST link mini USB User micro USB USB micro or mini connector for board powering Demonstration use cases stored in memory Demonstration edition (optional add-on module) with Bluetooth Low Energy module, Wi-Fi^® module and JTAG 20 pin connector ST25DV_Discovery_ANT_C5: 40 mm x 24 mm, 13.56 MHz inductive antenna etched on the PCB ST25DV04K Dynamic NFC / RFID tag I² C interface connector Energy harvesting output (VOUT) with a 10 nF capacitance filtering circuit GPO configurable as RF WIP/BUSY output, to indicate that an RF operation is ongoing Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-IDB008V2	Evaluation platform based on the BlueNRG-2	Quick view Key Features Bluetooth^® SMART board based on the BlueNRG-2 Bluetooth low energy system on chip Associated BlueNRG-2 development kit SW package including firmware and documentation Up to +8 dBm available output power (at antenna connector) Excellent receiver sensitivity (-88 dBm) Very low power consumption: 7.7 mA RX and 8.2 mA TX at +0 dBm Bluetooth^® SMART v5.0 compliant, supports master, slave, simultaneous master-and-slave roles and Bluetooth low energy extended data length feature New integrated balun BALF-NRG-02D3 which integrates a matching network and harmonics filter SMA connector for antenna or measuring equipment 3 user LEDs 2 user buttons 3D digital accelerometer and 3D digital gyroscope MEMS pressure sensor with embedded temperature sensor RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber

Part Number

M24SR-DISCOVERY

Discovery kit for the M24SR series - Dynamic NFC/RFID tag

Quick view

X-NUCLEO-NFC01A1

Dynamic NFC tag expansion board based on M24SR for STM32 Nucleo

Quick view

X-NUCLEO-NFC04A1

Dynamic NFC/RFID tag IC expansion board based on ST25DV04K for STM32 Nucleo

Quick view

STEVAL-IDB007V2

STEVAL-IDB007V2 evaluation platform based on the BlueNRG-1

Quick view

ST25DV-DISCOVERY

Discovery kit for ST25DV04 Dynamic NFC/RFID tag IC with fast transfer mode capability

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STEVAL-IDB008V2

Evaluation platform based on the BlueNRG-2

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00 Files selected for download

Technical Documentation

Application Notes

Description	Version	Size	Action
AN4356 Antenna desense on handheld equipment	1.2	1.8 MB	PDF
AN4979 Bluetooth low energy beacons with Eddystone	1.0	249.47 KB	PDF
AN4818 Bringing up the BlueNRG-1, BlueNRG-2 devices	8.1	6.26 MB	PDF
AN5085 Cycling endurance and data retention of EEPROMs in ST25DVxxx products based on CMOS F8H process	2.0	306.83 KB	PDF
AN4653 Cycling endurance and data retention of high density EEPROM based on CMOS F8H process	1.0	267.34 KB	PDF
AN4910 Data exchange between wired (I²C) and wireless (RF ISO 15693) using fast transfer mode supported by ST25DV-I2C	2.0	598.03 KB	PDF
AN4913 Energy harvesting delivery impact on ST25DVxxx behavior during RF communication	1.0	1.05 MB	PDF
AN2866 How to design a 13.56 MHz customized antenna for ST25 NFC / RFID Tags	3.0	615.85 KB	PDF
AN2972 How to design an antenna for dynamic NFC tags	9.0	1.59 MB	PDF
AN3353 IEC 61000-4-2 standard testing	1.2	171.08 KB	PDF
AN4911 NDEF management with ST25DVxxx and ST25TVxxx products	4.0	460.67 KB	PDF
AN4642 Overview of the BLE Profiles application for X-CUBE-BLE1, expansion for STM32Cube	3.0	2.31 MB	PDF
AN4433 Storing data into the NDEF memory of M24SR	2.0	507.23 KB	PDF
AN1471 What happens to the M24xxx I²C EEPROM if the I²C bus communication is stopped?	4.4	72.36 KB	PDF

AN4356

Antenna desense on handheld equipment

Part number	Description
STM8L101F1	Ultra-low-power 8-bit MCU with 2 Kbytes Flash, 16 MHz CPU, integrated EEPROM
STM8L101G3	Ultra-low-power 8-bit MCU with 8 Kbytes Flash, 16 MHz CPU, up to 2-Kbyte of EEPROM

Part number	Description
BlueNRG-1	Bluetooth Low Energy System On Chip
BlueNRG-2	Bluetooth® low energy wireless system-on-chip

Part number	Manufacturer	Description
STSW-ST25001	ST	Application executable of the "NFC Tap" Android app for ST25 product family
STSW-ST25DV001	ST	Firmware for ST25DV-DISCOVERY kit
STSW-ST25IOS001	ST	Application executable of the "NFC Tap" iOS app for ST25 product family
STSW-ST25SDK001	ST	Software Development Kit for ST25 Tags and Dynamic Tags

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