UM1855
1
Features
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STM32L476ZG microcontroller with 1-Mbyte flash memory and 128-Kbyte RAM
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Four power supply options: power jack, ST-LINK/V2-1 USB connector, USB OTG FS
connector, daughterboard
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Microcontroller supply voltage: 3.3 V or range of 1.71 to 3.6 V
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Two MEMS digital microphones
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Two jack outputs for stereo audio headphones with independent content
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Slot for microSD™ card supporting SD, SDHC, SDXC
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4-Gbyte microSD™ card bundled
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16-Mbit (1M x 16 bit) SRAM device
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128-Mbit (8M x 16 bit) NOR flash memory device
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256-Mbit Quad-SPI flash memory device with double transfer rate (DTR) support
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RF-EEPROM with I
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EEPROM supporting 1 MHz I
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RS-232 port configurable for communication or MCU flashing
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IrDA transceiver
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USB OTG FS Micro-AB port
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CAN 2.0A/B-compliant port
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Joystick with four-way controller and selector
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Reset and wake-up/tamper buttons
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Touch-sensing button
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Light-dependent resistor (LDR)
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Potentiometer
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Coin battery cell for power backup
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LCD glass module daughterboard (MB979) with 40x8-segment LCD driven directly by
STM32L476ZG
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2.8-inch 320x240 dot-matrix color TFT LCD panel with resistive touchscreen
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Smartcard connector and SWP support
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NFC transceiver connector
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Connector for ADC input and DAC output
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Power-metering demonstration with dual-channel sigma-delta modulator
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PT100 thermal sensor with dual-channel sigma-delta modulator
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MCU current consumption measurement circuit
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Access to the comparator and operational amplifier of STM32L476ZG
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Extension connector for motor control module
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JTAG/SWD, ETM trace debug support, user interface through USB Virtual COM port,
embedded ST-LINK/V2-1 debug, and flashing facility
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Extension connector for the daughterboard
a. Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.
²
C bus
²
C-bus communication speed
UM1855 Rev 6
Features
(a)
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