Overview
The STM32L486QGI6 is a member of the STM32L486xx family of ultra-low-power microcontrollers from STMicroelectronics. These devices are based on the high-performance Arm® Cortex®-M4 32-bit RISC core, operating at frequencies up to 80 MHz. The Cortex-M4 core includes a Floating Point Unit (FPU) and supports all Arm® single-precision data-processing instructions and data types, along with a full set of DSP instructions and a Memory Protection Unit (MPU) for enhanced application security.
The STM32L486QGI6 is designed for low-power applications, offering a range of power-saving modes and a flexible power supply system. It features high-speed memories, extensive I/Os, and a variety of peripherals, making it suitable for a wide range of applications requiring high performance and low power consumption.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz |
| Memories | 1 MB Flash, 2 banks read-while-write, 128 KB SRAM (including 32 KB with hardware parity check) |
| Power Supply | 1.71 V to 3.6 V, external SMPS support |
| Temperature Range | -40 °C to 85/105/125 °C |
| ADCs | Up to 3 fast 12-bit ADCs (5 Msps), up to 16-bit with hardware oversampling |
| DACs | 2x 12-bit DAC output channels, low-power sample and hold |
| Operational Amplifiers | 2x operational amplifiers with built-in PGA |
| Comparators | 2x ultra-low-power comparators |
| Timers | 16x timers: 2x 16-bit advanced motor-control, 2x 32-bit, 5x 16-bit general purpose, 2x low-power 16-bit timers |
| Communication Interfaces | USB OTG 2.0 full-speed, 2x SAIs, 3x I2C, 5x USARTs, 3x SPIs, CAN (2.0B Active), SDMMC interface |
| Capacitive Sensing Channels | Up to 24 capacitive sensing channels |
| LCD Driver | 8x40 or 4x44 with internal step-up converter |
| Power Modes | VBAT mode: 300 nA, Shutdown mode: 30 nA, Standby mode: 120 nA, Stop 2 mode: 1.1 µA, Run mode: 100 µA/MHz (LDO Mode), 39 µA/MHz (@3.3 V SMPS Mode) |
Key Features
- Ultra-low-power with FlexPowerControl, supporting various power-saving modes such as VBAT, Shutdown, Standby, and Stop 2 modes.
- High-performance Arm® Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™), and DSP instructions.
- High-speed memories: 1 MB Flash, 128 KB SRAM, external memory interface for static memories, and Quad SPI memory interface.
- Rich analog peripherals including 3x 12-bit ADCs, 2x 12-bit DACs, 2x operational amplifiers, and 2x ultra-low-power comparators.
- Advanced communication interfaces: USB OTG 2.0, SAIs, I2C, USARTs, SPIs, CAN (2.0B Active), and SDMMC interface.
- Integrated LCD driver and up to 24 capacitive sensing channels.
- AES hardware accelerator for 128/256-bit key encryption.
- True random number generator, CRC calculation unit, and 96-bit unique ID.
- Development support: serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
Applications
- Industrial automation and control systems.
- Medical devices requiring low power consumption and high performance.
- Consumer electronics such as smart home devices and wearables.
- Automotive systems, including infotainment and driver assistance.
- IoT devices and smart sensors.
- Energy metering and smart grid applications.
Q & A
- What is the core architecture of the STM32L486QGI6?
The STM32L486QGI6 is based on the Arm® 32-bit Cortex®-M4 CPU with a Floating Point Unit (FPU), operating at frequencies up to 80 MHz.
- What are the power supply requirements for the STM32L486QGI6?
The device operates from a 1.71 V to 3.6 V power supply and supports external SMPS.
- What are the key memory features of the STM32L486QGI6?
The device features 1 MB Flash, 128 KB SRAM (including 32 KB with hardware parity check), and supports external memory interfaces.
- What analog peripherals are available on the STM32L486QGI6?
The device includes 3x 12-bit ADCs, 2x 12-bit DACs, 2x operational amplifiers, and 2x ultra-low-power comparators.
- What communication interfaces does the STM32L486QGI6 support?
The device supports USB OTG 2.0, SAIs, I2C, USARTs, SPIs, CAN (2.0B Active), and SDMMC interface.
- Does the STM32L486QGI6 have any security features?
Yes, it includes an AES hardware accelerator for 128/256-bit key encryption and a Memory Protection Unit (MPU).
- What are the power-saving modes available on the STM32L486QGI6?
The device supports VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode, among others.
- What is the temperature range for the STM32L486QGI6?
The device operates in the -40 °C to 85/105/125 °C temperature range.
- Does the STM32L486QGI6 support capacitive sensing?
Yes, it supports up to 24 capacitive sensing channels.
- What development tools are available for the STM32L486QGI6?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
