Overview
The STM32L476QGI6P is an ultra-low-power microcontroller from STMicroelectronics, based on the high-performance Arm® Cortex®-M4 32-bit RISC core. This microcontroller 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 part of the STM32L476xx family, which is known for its ultra-low-power consumption and advanced peripherals, making it suitable for a wide range of low-power applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core Processor | Arm® Cortex®-M4 32-bit RISC core with FPU |
| Operating Frequency | Up to 80 MHz |
| Power Supply | 1.71 V to 3.6 V |
| Operating Temperature | -40 °C to 85/105/125 °C |
| Flash Memory | Up to 1 MB |
| SRAM | Up to 128 KB |
| I/O Ports | 109 I/O ports |
| Analog to Digital Converters (ADC) | Up to 3 fast 12-bit ADCs (5 Msps) |
| Digital to Analog Converters (DAC) | 2x 12-bit DAC output channels |
| Timers | 16x timers (including 2x 16-bit advanced motor-control, 2x 32-bit, and 5x 16-bit general purpose) |
| Communication Interfaces | USB OTG 2.0 full-speed, 3x I2Cs, 3x SPIs, 3x USARTs, 2x UARTs, CAN, SDMMC, SWPMI |
| Package | 132-UFBGA (7x7) |
Key Features
- Ultra-low-power with FlexPowerControl, offering various power-saving modes such as Shutdown, Standby, and Stop modes.
- High-speed memories including up to 1 MB of flash and up to 128 KB of SRAM.
- Rich set of analog peripherals including 3x 12-bit ADCs, 2x 12-bit DACs, 2x operational amplifiers, and 2x ultra-low-power comparators.
- Advanced communication interfaces such as USB OTG 2.0 full-speed, multiple I2Cs, SPIs, USARTs, UARTs, CAN, and SDMMC.
- Integrated LCD driver (8x40 or 4x44) with internal step-up converter and up to 24 capacitive sensing channels.
- Multiple timers including 16-bit and 32-bit timers, and low-power timers available in Stop mode.
- RTC with hardware calendar, alarms, and calibration, along with a VBAT input for backup.
- Support for external memory interfaces and Quad SPI flash memories.
- Development support with serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
Applications
The STM32L476QGI6P is suitable for a wide range of applications that require low power consumption and high performance. These include:
- Industrial automation and control systems.
- Medical devices requiring precise analog measurements.
- Consumer electronics such as smart home devices and wearables.
- Automotive systems, especially those needing advanced motor control and communication interfaces.
- IoT devices that require efficient power management and multiple communication protocols.
Q & A
- What is the core processor of the STM32L476QGI6P?
The core processor is the Arm® Cortex®-M4 32-bit RISC core with a Floating Point Unit (FPU).
- What is the operating frequency of the STM32L476QGI6P?
The operating frequency is up to 80 MHz.
- What is the power supply range for the STM32L476QGI6P?
The power supply range is from 1.71 V to 3.6 V.
- What are the key analog peripherals of the STM32L476QGI6P?
The key analog peripherals include 3x 12-bit ADCs, 2x 12-bit DACs, 2x operational amplifiers, and 2x ultra-low-power comparators.
- Does the STM32L476QGI6P support external memory interfaces?
Yes, it supports external memory interfaces for static memories and Quad SPI flash memories.
- What communication interfaces are available on the STM32L476QGI6P?
The device features USB OTG 2.0 full-speed, multiple I2Cs, SPIs, USARTs, UARTs, CAN, and SDMMC interfaces.
- What is the package type of the STM32L476QGI6P?
The package type is 132-UFBGA (7x7).
- What are the power-saving modes available on the STM32L476QGI6P?
The device offers various power-saving modes such as Shutdown, Standby, and Stop modes, along with VBAT mode for RTC and backup registers.
- Does the STM32L476QGI6P support capacitive sensing?
Yes, it supports up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- What development tools are supported by the STM32L476QGI6P?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ for development.
