STM32L476RGT6 STM32 32-bit Arm Cortex MCUs by STMicroelectronics

Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 1 Mbyte of Flash memory, LCD, USB OTG, DFSDM

Status: Active
Series: STM32L476RG
RoHS: Compliant
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The STM32L476xx devices are the ultra-low-power microcontrollers based on the high-performance Arm ® Cortex ® -M4 32-bit RISC core operating at a frequency of up to 80 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision which supports all Arm ® single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security. The STM32L476xx devices embed high-speed memories (Flash memory up to 1 Mbyte, up to 128 Kbyte of SRAM), a flexible external memory controller (FSMC) for static memories (for devices with packages of 100 pins and more), a Quad SPI flash memories interface (available on all packages) and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix. The STM32L476xx devices embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, proprietary code readout protection and Firewall. The devices offer up to three fast 12-bit ADCs (5 Msps), two comparators, two operational amplifiers, two DAC channels, an internal voltage reference buffer, a low-power RTC, two general-purpose 32-bit timer, two 16-bit PWM timers dedicated to motor control, seven general-purpose 16-bit timers, and two 16-bit low-power timers. The devices support four digital filters for external sigma delta modulators (DFSDM). In addition, up to 24 capacitive sensing channels are available. The devices also embed an integrated LCD driver 8x40 or 4x44, with internal step-up converter. They also feature standard and advanced communication interfaces. The STM32L476xx operates in the -40 to +85 °C (+105 °C junction), -40 to +105 °C (+125 °C junction) and -40 to +125 °C (+130 °C junction) temperature ranges from a 1.71 to 3.6 V VDD power supply when using internal LDO regulator and a 1.05 to 1.32V VDD12 power supply when using external SMPS supply. A comprehensive set of power-saving modes allows the design of low-power applications. Some independent power supplies are supported: analog independent supply input for ADC, DAC, OPAMPs and comparators, 3.3 V dedicated supply input for USB and up to 14 I/Os can be supplied independently down to 1.08V. A VBAT input allows to backup the RTC and backup registers. Dedicated VDD12 power supplies can be used to bypass the internal LDO regulator when connected to an external SMPS. The STM32L476xx family offers six packages from 64-pin to 144-pin packages.

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Features

Ultra-low-power with FlexPowerControl 1.71 V to 3.6 V power supply -40 °C to 85/105/125 °C temperature range 300 nA in VBAT mode: supply for RTC and 32x32-bit backup registers 30 nA Shutdown mode (5 wakeup pins) 120 nA Standby mode (5 wakeup pins) 420 nA Standby mode with RTC 1.1 μA Stop 2 mode, 1.4 μA with RTC 100 μA/MHz run mode (LDO Mode) 39 μA/MHz run mode (@3.3 V SMPS Mode) Batch acquisition mode (BAM) 4 μs wakeup from Stop mode Brown out reset (BOR) Interconnect matrix
1.71 V to 3.6 V power supply
-40 °C to 85/105/125 °C temperature range
300 nA in VBAT mode: supply for RTC and 32x32-bit backup registers
30 nA Shutdown mode (5 wakeup pins)
120 nA Standby mode (5 wakeup pins)
420 nA Standby mode with RTC
1.1 μA Stop 2 mode, 1.4 μA with RTC
100 μA/MHz run mode (LDO Mode)
39 μA/MHz run mode (@3.3 V SMPS Mode)
Batch acquisition mode (BAM)
4 μs wakeup from Stop mode
Brown out reset (BOR)
Interconnect matrix
Core: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait-state execution from Flash memory, frequency up to 80 MHz, MPU, 100DMIPS and DSP instructions
Performance benchmark 1.25 DMIPS/MHz (Drystone 2.1) 273.55 CoreMark® (3.42 CoreMark/MHz @ 80 MHz)
1.25 DMIPS/MHz (Drystone 2.1)
273.55 CoreMark® (3.42 CoreMark/MHz @ 80 MHz)
Energy benchmark 294 ULPMark™ CP score 106 ULPMark™ PP score
294 ULPMark™ CP score
106 ULPMark™ PP score
Clock Sources 4 to 48 MHz crystal oscillator 32 kHz crystal oscillator for RTC (LSE) Internal 16 MHz factory-trimmed RC (±1%) Internal low-power 32 kHz RC (±5%) Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25 % accuracy) 3 PLLs for system clock, USB, audio, ADC
4 to 48 MHz crystal oscillator
32 kHz crystal oscillator for RTC (LSE)
Internal 16 MHz factory-trimmed RC (±1%)
Internal low-power 32 kHz RC (±5%)
Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25 % accuracy)
3 PLLs for system clock, USB, audio, ADC
Up to 114 fast I/Os, most 5 V-tolerant, up to 14 I/Os with independent supply down to 1.08 V
RTC with HW calendar, alarms and calibration
LCD 8× 40 or 4× 44 with step-up converter
Up to 24 capacitive sensing channels: support touchkey, linear and rotary touch sensors
16x timers: 2x 16-bit advanced motor-control, 2x 32-bit and 5x 16-bit general purpose, 2x 16-bit basic, 2x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer
Memories Up to 1 MB Flash, 2 banks read-while-write, proprietary code readout protection Up to 128 KB of SRAM including 32 KB with hardware parity check External memory interface for static memories supporting SRAM, PSRAM, NOR and NAND memories Quad SPI memory interface
Up to 1 MB Flash, 2 banks read-while-write, proprietary code readout protection
Up to 128 KB of SRAM including 32 KB with hardware parity check
External memory interface for static memories supporting SRAM, PSRAM, NOR and NAND memories
Quad SPI memory interface
4x digital filters for sigma delta modulator
Rich analog peripherals (independent supply) 3x 12-bit ADC 5 Msps, up to 16-bit with hardware oversampling, 200 μA/Msps 2x 12-bit DAC output channels, low-power sample and hold 2x operational amplifiers with built-in PGA 2x ultra-low-power comparators
3x 12-bit ADC 5 Msps, up to 16-bit with hardware oversampling, 200 μA/Msps
2x 12-bit DAC output channels, low-power sample and hold
2x operational amplifiers with built-in PGA
2x ultra-low-power comparators
20x communication interfaces USB OTG 2.0 full-speed, LPM and BCD 2x SAIs (serial audio interface) 3x I2C FM+(1 Mbit/s), SMBus/PMBus 5x USARTs (ISO 7816, LIN, IrDA, modem) 1x LPUART (Stop 2 wake-up) 3x SPIs (and 1x Quad SPI) CAN (2.0B Active) and SDMMC interface SWPMI single wire protocol master I/F IRTIM (Infrared interface)
USB OTG 2.0 full-speed, LPM and BCD
2x SAIs (serial audio interface)
3x I2C FM+(1 Mbit/s), SMBus/PMBus
5x USARTs (ISO 7816, LIN, IrDA, modem)
1x LPUART (Stop 2 wake-up)
3x SPIs (and 1x Quad SPI)
CAN (2.0B Active) and SDMMC interface
SWPMI single wire protocol master I/F
IRTIM (Infrared interface)
14-channel DMA controller
True random number generator
CRC calculation unit, 96-bit unique ID
Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
All packages are ECOPACK2® compliant

Resources


Application Notes
AN4629 ADC hardware oversampling for microcontrollers of the STM32 L0 and L4 series
AN5012 Analog-to-digital audio conversion example using STM32L4 Series microcontroller peripherals
AN3126 Audio and waveform generation using the DAC in STM32 products
AN3154 CAN protocol used in the STM32 bootloader
AN4312 Design with surface sensors for touch sensing applications on MCUs
AN5020 Digital camera interface (DCMI) on STM32 MCUs
AN4894 EEPROM emulation techniques and software for STM32 microcontrollers
AN1709 EMC design guide for STM8, STM32 and Legacy MCUs
AN3960 ESD considerations for touch sensing applications on MCUs
AN5612 ESD protection of STM32 MCUs and MPUs
AN1181 Electrostatic discharge sensitivity measurement
AN5543 Enhanced methods to handle SPI communication on STM32 devices
AN4566 Extending the DAC performance of STM32 microcontrollers
AN4776 General-purpose timer cookbook for STM32 microcontrollers
AN4555 Getting started with STM32L4 Series and STM32L4+ Series hardware development
AN4990 Getting started with sigma-delta digital interface on applicable STM32 microcontrollers
AN5105 Getting started with touch sensing control on STM32 microcontrollers
AN4750 Handling of soft errors in STM32 applications
AN4803 High-speed SI simulations using IBIS and board-level simulations using HyperLynx® SI on STM32 MCUs and MPUs
AN2834 How to get the best ADC accuracy in STM32 microcontrollers
AN4229 How to implement a vocoder solution using STM32 microcontrollers
AN4991 How to wake up an STM32xx Series microcontroller from low-power mode with the USART or the LPUART
AN4221 I2C protocol used in the STM32 bootloader
AN4299 Improve conducted noise robustness for touch sensing applications on MCUs
AN3236 Increase the number of touchkeys for touch sensing applications on MCUs
AN5027 Interfacing PDM digital microphones using STM32 MCUs and MPUs
AN5156 Introduction to STM32 microcontrollers security
AN4838 Managing memory protection unit in STM32 MCUs
AN4809 Migrating between STM32L0 Series and STM32L4 Series / STM32L4+ Series microcontrollers
AN5017 Migrating between STM32L476xx/486xx and STM32L4+ Series microcontrollers
AN4822 Migrating between STM32L476xx/486xx and STM32L496xx/4A6xx microcontrollers
AN4754 Migrating between STM32L486xx/476xx and STM32L443xx/433xx microcontrollers
AN4649 Migrating from STM32F1 Series to STM32L4 Series / STM32L4+ Series microntrollers
AN4831 Migrating from STM32F2x5 line to STM32L4 Series and STM32L4+ Series microcontrollers
AN4832 Migrating from STM32F303 line to STM32L4 Series and STM32L4+ Series microcontrollers
AN4616 Migrating from STM32F401 and STM32F411 lines to STM32L4 Series and STM32L4+ Series microcontrollers
AN4821 Migrating from STM32F405/415 line and STM32F407/417 line to STM32L4 Series and STM32L4+ Series microcontrollers
AN5408 Migrating from STM32L0, STM32L1, and STM32L4 Series associated with SX12xx transceivers to STM32WL Series microcontrollers
AN4612 Migrating from STM32L1 Series to STM32L4 Series and STM32L4+ Series microcontrollers
AN5138 Migrating from STM32L4 and STM32L4+ to STM32L5 Series microcontrollers
AN4635 Minimization of power consumption using LPUART for STM32 microcontrollers
AN4746 Optimizing power and performance with STM32L4 and STM32L4+ Series microcontrollers
AN2867 Oscillator design guide for STM8AF/AL/S, STM32 MCUs and MPUs
AN4760 Quad-SPI interface on STM32 microcontrollers and microprocessors
AN4286 SPI protocol used in the STM32 bootloader
AN4908 STM32 USART automatic baud rate detection
AN4013 STM32 cross-series timer overview
AN4899 STM32 microcontroller GPIO hardware settings and low-power consumption
AN4989 STM32 microcontroller debug toolbox
AN4230 STM32 microcontroller random number generation validation using the NIST statistical test suite
AN2606 STM32 microcontroller system memory boot mode
AN4726 STM32Cube firmware examples for STM32L4 Series and STM32L4+ Series
AN4729 STM32L0/L4 FIREWALL overview
AN5372 STM32L4 and STM32L4+ Series to STM32U575/585 migration guide
AN4621 STM32L4 and STM32L4+ ultra-low-power features overview
AN4310 Sampling capacitor selection guide for touch sensing applications on MCUs
AN2639 Soldering recommendations and package information for Lead-free ECOPACK MCUs and MPUs
AN5036 Thermal management guidelines for STM32 applications
AN4316 Tuning a touch sensing application on MCUs
AN3155 USART protocol used in the STM32 bootloader
AN3156 USB DFU protocol used in the STM32 bootloader
AN5225 USB Type-C Power Delivery using STM32 MCUs and MPUs
AN4879 USB hardware and PCB guidelines using STM32 MCUs
AN4277 Using STM32 device PWM shut-down features for motor control and digital power conversion
AN4995 Using an electromyogram technique to detect muscle activity
AN4730 Using the FIREWALL embedded in STM32L0/L4/L4+ Series MCUs for secure access to sensitive parts of code and data
AN2548 Using the STM32F0/F1/F3/Gx/Lx Series DMA controller
AN4759 Using the hardware real-time clock (RTC) and the tamper management unit (TAMP) with STM32 microcontrollers
AN5690 VREFBUF peripheral applications and trimming technique
AN4655 Virtually increasing the number of serial communication peripherals in STM32 applications






Application Notes for related Tools & Software
AN5698 Adapting the X-CUBE-STL functional safety package for STM32 (IEC 61508 compliant) to other safety standards
Atollic Editing Keyboard Shortcuts
AN4841 Digital signal processing for STM32 microcontrollers using CMSIS
AN4894 EEPROM emulation techniques and software for STM32 microcontrollers
AN4044 Floating point unit demonstration on STM32 microcontrollers
FreeRTOS Guide
AN4323 Getting started with STemWin Library
AN5361 Getting started with projects based on dual-core STM32H7 microcontrollers in STM32CubeIDE
AN5564 Getting started with projects based on dual-core STM32WL microcontrollers in STM32CubeIDE
AN5394 Getting started with projects based on the STM32L5 Series in STM32CubeIDE
AN5360 Getting started with projects based on the STM32MP1 Series in STM32CubeIDE
AN4435 Guidelines for obtaining UL/CSA/IEC 60730-1/60335-1 Class B certification in any STM32 application
AN5418 How to build a simple USB-PD sink application with STM32CubeMX
AN4736 How to calibrate STM32L4 Series microcontrollers internal RC oscillator
AN4631 How to calibrate an STM32L0xx internal RC oscillator
AN5676 How to calibrate internal RC oscillators on STM32U5 Series
How to do semihosting in TrueSTUDIO
AN4834 Implementation of transmitters and receivers for infrared remote control protocols with STM32Cube
Installing STM32Cubeprogrammer in TrueSTUDIO
AN5056 Integration guide for the X-CUBE-SBSFU STM32Cube Expansion Package
AN4865 Low-power timer (LPTIM) applicative use cases on STM32 MCUs and MPUs
AN5426 Migrating graphics middleware projects from STM32CubeMX 5.4.0 to STM32CubeMX 5.5.0
AN4635 Minimization of power consumption using LPUART for STM32 microcontrollers
AN4767 On-the-fly firmware update for dual bank STM32 microcontrollers
AN4666 Parallel synchronous transmission using GPIO and DMA
AN4968 Proprietary code read out protection (PCROP) on STM32F72xxx and STM32F73xxx microcontrollers
AN4758 Proprietary code read-out protection on STM32L4, STM32L4+, STM32G4 and STM32WB Series MCUs
AN4701 Proprietary code read-out protection on microcontrollers of the STM32F4 Series
AN4502 STM32 SMBus/PMBus™ embedded software expansion for STM32Cube™
AN4657 STM32 in-application programming (IAP) using the USART
AN4777 STM32 power mode examples
AN4726 STM32Cube firmware examples for STM32L4 Series and STM32L4+ Series
STM32CubeMX Installation in TrueSTUDIO
AN5731 STM32CubeMX and STM32CubeIDE thread-safe solution
AN5054 Secure programming using STM32CubeProgrammer
TrueSTUDIO for ARM® Migration Guide: IAR Embedded Workbench to TrueSTUDIO
AN5126 Using X-CUBE-RC-CALIB software to calibrate STM32G0 Series internal RC oscillator
AN5282 Using X-CUBE-RC-CALIB software to calibrate STM32WB Series internal RC oscillators
AN4759 Using the hardware real-time clock (RTC) and the tamper management unit (TAMP) with STM32 microcontrollers

Presentations
Microcontrollers Functional Safety Packages
STM32 Development Boards Portfolio
STM32 and STM8 embedded software solutions
STM32 and STM8 software development tools
STM32L4 MCU series - Excellence in ultra-low-power with performance
STM32L4トレーニング04 - システム設定コントローラ(SYSCFG)
STM32L4トレーニング05 - リセットおよびクロック制御(RCC)
STM32L4トレーニング06 - 電源コントローラ(PWR)
STM32L4トレーニング07 - DMAコントローラ(DMA)
STM32L4トレーニング08 - ネスト化されたベクタ割り込みコントローラ(NVIC)
STM32L4トレーニング09 - 外部割込み/イベント・コントローラ(EXTI)
STM32L4トレーニング10 - 汎用I/O(GPIO)
STM32L4トレーニング12 - デバッグ・サポート(DBG)
STM32L4トレーニング13 - 内蔵フラッシュ・メモリ・インタフェース(FLASH)
STM32L4トレーニング14 - Quad SPIメモリ・インタフェース(QUADSPI)
STM32L4トレーニング15 - フレキシブル・スタティック・メモリ・コントローラ(FSMC)
STM32L4トレーニング16 - 巡回冗長検査計算ユニット(CRC)
STM32L4トレーニング17 - ファイアウォール(FW)
STM32L4トレーニング18 - 乱数発生器(RNG)
STM32L4トレーニング20 - AESハードウェア・アクセラレータ(AES)
STM32L4トレーニング22 - アナログ・デジタル・コンバータ(ADC)
STM32L4トレーニング23 - デジタル・アナログ・コンバータ(DAC)
STM32L4トレーニング24 - 電圧リファレンス・バッファ(VREFBUF)
STM32L4トレーニング25 - オペアンプ(OPAMP)
STM32L4トレーニング26 - コンパレータ(COMP)
STM32L4トレーニング27 - 低電力ユニバーサル非同期レシーバ・トランスミッタ(LPUART)
STM32L4トレーニング28 - ユニバーサル同期/非同期レシーバ・トランスミッタ(USART)
STM32L4トレーニング29 - シングル・ワイヤ・プロトコル・マスタ・インタフェース(SWPMI)
STM32L4トレーニング30 - シリアル・ペリフェラル・インタフェース(SPI)
STM32L4トレーニング31 - USB OTG フルスピード・コントローラ(OTG_FS)
STM32L4トレーニング32 - I2Cインタフェース(I2C)
STM32L4トレーニング33 - 赤外線タイマ(IRTIM)
STM32L4トレーニング34 - コントローラ・エリア・ネットワーク(CAN)
STM32L4トレーニング35 - SD/SDIO/MMCホスト・インタフェース(SDMMC)
STM32L4トレーニング36 - ΔΣ変調器向けデジタル・フィルタ・インタフェース(DFSDM)
STM32L4トレーニング37 - シリアル・オーディオ・インタフェース(SAI)
STM32L4トレーニング38 - 液晶ディスプレイ・コントローラ(LCD)
STM32L4トレーニング39 - タッチ・センシング・コントローラ(TSC)
STM32L4トレーニング40 - 独立型ウォッチドッグ(IWDG)
STM32L4トレーニング41 - システム・ウィンドウ型ウォッチドッグ(WWDG)
STM32L4トレーニング42 - 低電力タイマ(LPTIM)
STM32L4トレーニング43 - 汎用タイマ(GPTIM)
STM32L4トレーニング44 - リアルタイム・クロック(RTC)





Alternative Descriptions

Mcu, 32Bit, 80Mhz, Lqfp-64 | Newark Electronics
MCU, 32BIT, CORTEX-M4, 80MHZ, LQFP-64 | element14
MCU 32-Bit STM32 ARM Cortex M4 RISC 1024KB Flash 1.8V/2.5V/3.3V 64-Pin LQFP Tray | Avnet America
STM32L Series 1 MB Flash 128 kB RAM SMT 32-Bit Microcontroller - LQFP-64 | Future Electronics
IC: ARM microcontroller | Transfer Multisort Elektronik
ARM MCU 32-bit 80MHz 1024KB LQFP64 | RS
ST Microcontroller 32bit 1MB LQFP | Distrelec


Frequently Asked Questions

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What category does STM32L476RGT6 fall under?

The STM32L476RGT6 is listed under Microcontrollers & Microprocessors > STM32 32-bit Arm Cortex MCUs > STM32 Ultra Low Power MCUs > STM32L4 Series > STM32L4x6.

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You can view similar parts to STM32L476RGT6 when available in the STM32L4x6 range under the specifications section at the bottom of the details page.

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Is the STM32L476RGT6 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.

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