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Overview
| Topology | Buck Converter |
| Input voltage | 3.3 V |
| IC revision | 3 |
Description
The M24SR-DISCOVERY is a demonstration kit to evaluate the features and capabilities of the M24SR series and is based on the M24SR64 device. Two versions of this kit are available: the Standard Edition and the Premium Edition.
The Premium Edition includes all of the Standard edition features, plus a headset and a Bluetooth module to demonstrate the convenience to pair it with a smartphone via NFC.
The M24SR64 device is a dynamic NFC/RFID tag IC with a dual interface. It embeds a 64 Kbits EEPROM memory. It can be operated from an I2C interface or by a 13.56 MHz RFID reader or an NFC phone.
The I2C interface uses a two-wire serial interface, consisting of a bidirectional data line and a clock line. It behaves as a slave with respect to the I2C protocol.
The RF protocol is compatible with ISO/IEC 14443 Type A and NFC Forum Type 4 Tag.
The board is powered through the USB bus. It also includes a microcontroller STM32F103 to drive the EEPROM via I2C and the LCD screen via SPI bus.
The M24SR-DISCOVERY (MB1138) schematics, BOM, gerber files, drivers and firmware can be downloaded from www.st.com
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
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR 2(mA) | RDC max.(Ω) | Type | Winding Style | L(µH) | IR(mA) | VR(V) | VT(V (DC)) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-CNSW SMT Common Mode Line Filter, 90 Ω, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CNSW SMT Common Mode Line Filter | Impedance @ 100 MHz90 Ω | – | – | – | DC Resistance0.3 Ω | – | Winding Stylebifilar | Inductance0.111 µH | Rated Current370 mA | Rated Voltage50 V | Insulation Test Voltage125 V (DC) | ||||
 | WE-CBF SMT EMI Suppression Ferrite Bead, 300 Ω, 450 Ω | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | Impedance @ 100 MHz300 Ω | Maximum Impedance450 Ω | Maximum Impedance250 MHz | Rated Current 22000 mA | DC Resistance0.15 Ω | TypeHigh Current | – | – | Rated Current1500 mA | – | – | ||||
 | WE-CBF SMT EMI Suppression Ferrite Bead, 600 Ω, 3000 Ω | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | Impedance @ 100 MHz600 Ω | Maximum Impedance3000 Ω | Maximum Impedance180 MHz | Rated Current 2900 mA | DC Resistance0.5 Ω | TypeHigh Speed | – | – | Rated Current200 mA | – | – | ||||
| WE-CNSW SMT Common Mode Line Filter, 2200 Ω, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CNSW SMT Common Mode Line Filter | Impedance @ 100 MHz2200 Ω | – | – | – | DC Resistance1.2 Ω | – | Winding Stylebifilar | Inductance2.578 µH | Rated Current200 mA | Rated Voltage50 V | Insulation Test Voltage125 V (DC) |