Overview
The STM32L486RGT6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L486xx family. It is based on the high-performance Arm® Cortex®-M4 32-bit RISC core, operating at a frequency of up to 80 MHz. The device features a Floating Point Unit (FPU) single precision, supporting 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 microcontroller is designed for low-power applications, offering various power-saving modes and independent power supplies for different components. It is suitable for a wide range of applications requiring high performance and low energy consumption.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz |
| Memory | 1 MB Flash, 128 KB SRAM (including 32 KB with hardware parity check) |
| Power Supply | 1.71 V to 3.6 V (internal LDO), 1.05 to 1.32 V (external SMPS) |
| Temperature Range | -40 °C to +85 °C (+105 °C junction), -40 °C to +105 °C (+125 °C junction), -40 °C to +125 °C (+130 °C junction) |
| ADCs | Up to three fast 12-bit ADCs (5 Msps) |
| DACs | Two 12-bit DAC output channels |
| Timers | Two 32-bit timers, nine 16-bit timers, two 16-bit low-power timers |
| Communication Interfaces | USB OTG 2.0 full-speed, two SAIs, three I2Cs, three SPIs, five USARTs, one CAN 2.0B |
| Package | LQFP 64 10x10x1.4 mm |
| Power Modes | VBAT mode: 300 nA, Shutdown mode: 30 nA, Standby mode: 120 nA, Stop 2 mode: 1.1 μA (with RTC: 1.4 μA) |
Key Features
- Ultra-low-power with FlexPowerControl and multiple power-saving modes
- High-speed memories: 1 MB Flash, 128 KB SRAM
- Flexible external memory controller 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
- Rich analog peripherals: up to three fast 12-bit ADCs, two 12-bit DAC channels, two operational amplifiers, two ultra-low-power comparators
- Integrated LCD driver 8x40 or 4x44 with internal step-up converter
- Up to 24 capacitive sensing channels supporting touchkey, linear, and rotary touch sensors
- AES hardware accelerator for 128/256-bit key encryption
- Comprehensive set of communication interfaces including USB OTG 2.0, SAIs, I2Cs, SPIs, USARTs, and CAN 2.0B
- True random number generator, CRC calculation unit, and 96-bit unique ID
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, especially those requiring low power and high reliability
- IoT devices and smart sensors
- Energy metering and monitoring systems
Q & A
- What is the core architecture of the STM32L486RGT6?
The STM32L486RGT6 is based on the Arm® 32-bit Cortex®-M4 CPU with a Floating Point Unit (FPU), operating at up to 80 MHz.
- What are the power supply ranges for the STM32L486RGT6?
The device operates from a 1.71 V to 3.6 V power supply using the internal LDO regulator, and from 1.05 to 1.32 V using an external SMPS supply.
- What are the key analog peripherals of the STM32L486RGT6?
The device features up to three fast 12-bit ADCs, two 12-bit DAC channels, two operational amplifiers, and two ultra-low-power comparators.
- Does the STM32L486RGT6 support capacitive sensing?
- What communication interfaces are available on the STM32L486RGT6?
The device includes USB OTG 2.0 full-speed, two SAIs, three I2Cs, three SPIs, five USARTs, and one CAN 2.0B interface.
- What is the temperature range for the STM32L486RGT6?
The device operates in the -40 °C to +85 °C (+105 °C junction), -40 °C to +105 °C (+125 °C junction), and -40 °C to +125 °C (+130 °C junction) temperature ranges.
- Does the STM32L486RGT6 have any security features?
- What are the power-saving modes available on the STM32L486RGT6?
The device features VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode, among others, to minimize power consumption.
- What is the package type for the STM32L486RGT6?
The device is available in an LQFP 64 10x10x1.4 mm package.
- Does the STM32L486RGT6 support external memory interfaces?
- What development tools are available for the STM32L486RGT6?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ for development and debugging.
