DocID027351 Rev 3
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UM1855
Overview
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1 Overview
1.1 Features
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STM32L476ZGT6 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 from 1.71 V to 3.6 V
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two MEMS digital microphones
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two stereo audio headphones jack outputs with independent audio 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 I²C bus
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EEPROM supporting 1 MHz I²C-bus communication speed
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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
STM32L476ZGT6
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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 comparator and operational amplifier of STM32L476ZGT6
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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 daughterboard