Overview
The STM32L476VGT6 is an ultra-low-power microcontroller from STMicroelectronics, based on the high-performance Arm® Cortex®-M4 32-bit RISC core. This MCU operates at a frequency of up to 80 MHz and features a Floating Point Unit (FPU) that supports all Arm® single-precision data-processing instructions and data types. It also includes a full set of DSP instructions and a memory protection unit (MPU) to enhance application security.
The device is designed for low-power applications, with a comprehensive set of power-saving modes and a wide operating temperature range from -40 to +85 °C (or up to +125 °C junction temperature). It is powered by a 1.71 to 3.6 V VDD power supply when using the internal LDO regulator or a 1.05 to 1.32 V VDD12 power supply with an external SMPS supply.
Key Specifications
| Parameter | Value |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU |
| Frequency | Up to 80 MHz |
| Flash Memory | Up to 1 Mbyte |
| SRAM | Up to 128 Kbyte |
| Operating Temperature (°C) | -40 to +85 (or up to +125 °C junction) |
| Power Supply | 1.71 to 3.6 V (VDD), 1.05 to 1.32 V (VDD12 with external SMPS) |
| D/A Converters (12-bit) | 2 |
| Timers (16-bit) | 9 |
| Timers (32-bit) | 2 |
| UART | 2 |
| I/Os (High Current) | 82 |
| Integrated Op-Amps | 2 |
| Comparator | 2 |
| SPI | 3 |
| USART | 3 |
| CAN (2.0) | 1 |
| USB OTG Full-Speed | 1 |
Key Features
- Ultra-low-power with FlexPowerControl, featuring various power-saving modes such as VBAT, Shutdown, Standby, and Stop modes.
- Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait-state execution from Flash memory.
- Full set of DSP instructions and a memory protection unit (MPU) for enhanced security.
- High-speed memories including up to 1 Mbyte of Flash memory and up to 128 Kbyte of SRAM.
- Flexible external memory controller (FSMC) and Quad SPI flash memories interface.
- Extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses, and a 32-bit multi-AHB bus matrix.
- Standard and advanced communication interfaces including three I2Cs, three SPIs, three USARTs, two UARTs, one Low-Power UART, two SAIs, one SDMMC, one CAN, and one USB OTG full-speed.
- Protection mechanisms for embedded flash memory and SRAM such as readout protection, write protection, proprietary code readout protection, and Firewall.
Applications
- Industrial automation and control systems.
- Medical devices requiring low power consumption.
- Consumer electronics such as smart home devices and wearables.
- Automotive systems, especially those requiring low power and high performance.
- IoT devices and smart sensors.
- Energy-efficient solutions in various sectors.
Q & A
- What is the core architecture of the STM32L476VGT6?
The STM32L476VGT6 is based on the Arm® 32-bit Cortex®-M4 CPU with a Floating Point Unit (FPU).
- What is the maximum operating frequency of the STM32L476VGT6?
The maximum operating frequency is up to 80 MHz.
- What are the power supply ranges for the STM32L476VGT6?
The device operates with a 1.71 to 3.6 V VDD power supply when using the internal LDO regulator or a 1.05 to 1.32 V VDD12 power supply with an external SMPS supply.
- What are the key power-saving modes of the STM32L476VGT6?
The device features various power-saving modes including VBAT, Shutdown, Standby, and Stop modes.
- What communication interfaces are available on the STM32L476VGT6?
The device includes three I2Cs, three SPIs, three USARTs, two UARTs, one Low-Power UART, two SAIs, one SDMMC, one CAN, and one USB OTG full-speed.
- What is the temperature range for the STM32L476VGT6?
The operating temperature range is from -40 to +85 °C (or up to +125 °C junction temperature).
- How much Flash and SRAM memory does the STM32L476VGT6 have?
The device has up to 1 Mbyte of Flash memory and up to 128 Kbyte of SRAM.
- What protection mechanisms are available for the embedded flash memory and SRAM?
The device features readout protection, write protection, proprietary code readout protection, and Firewall.
- What are some typical applications for the STM32L476VGT6?
Typical applications include industrial automation, medical devices, consumer electronics, automotive systems, IoT devices, and energy-efficient solutions.
- Does the STM32L476VGT6 support DSP instructions?
Yes, the device includes a full set of DSP instructions.
