Overview
The STM32L486JGY6TR is an ultra-low-power microcontroller from STMicroelectronics, based on the high-performance Arm® 32-bit Cortex®-M4 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, offering various power-saving modes and a comprehensive set of peripherals and interfaces.
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 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 |
| Timers | 16 timers: 2x 16-bit advanced motor-control, 2x 32-bit, 5x 16-bit general purpose, 2x 16-bit basic, 2x low-power 16-bit timers |
| Communication Interfaces | USB OTG 2.0 full-speed, 3x I2C, 3x SPI, 3x USART, 2x SAIs, 1x SDMMC, 1x CAN, 1x SWPMI |
| Capacitive Sensing | Up to 24 capacitive sensing channels |
| 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), 39 µA/MHz (SMPS) |
Key Features
- Ultra-low-power with FlexPowerControl
- Adaptive real-time accelerator (ART Accelerator™) for 0-wait-state execution from Flash memory
- Integrated LCD driver 8x40 or 4x44 with internal step-up converter
- Rich analog peripherals: 3x 12-bit ADCs, 2x 12-bit DACs, 2x operational amplifiers, 2x ultra-low-power comparators
- AES hardware accelerator for 128/256-bit key encryption
- Up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors
- Comprehensive set of power-saving modes: VBAT, Shutdown, Standby, Stop 2
- Independent power supplies for ADC, DAC, OPAMPs, and comparators
- Advanced communication interfaces including USB OTG, I2C, SPI, USART, SAIs, SDMMC, CAN, and SWPMI
Applications
- Low-power IoT devices
- 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
- Energy harvesting applications
Q & A
- What is the core architecture of the STM32L486JGY6TR?
The STM32L486JGY6TR 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 this MCU?
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 available on this MCU?
The device includes 3x 12-bit ADCs, 2x 12-bit DACs, 2x operational amplifiers, and 2x ultra-low-power comparators.
- Does the STM32L486JGY6TR support capacitive sensing?
Yes, it supports up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- What are the power-saving modes available on this MCU?
The device offers several power-saving modes including VBAT, Shutdown, Standby, and Stop 2 modes.
- What communication interfaces are available on the STM32L486JGY6TR?
The device features USB OTG 2.0 full-speed, I2C, SPI, USART, SAIs, SDMMC, CAN, and SWPMI interfaces.
- Does the STM32L486JGY6TR have any security features?
Yes, it includes an AES hardware accelerator for 128/256-bit key encryption and a memory protection unit (MPU) for enhanced security.
- What is the temperature range for the STM32L486JGY6TR?
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.
- How much memory does the STM32L486JGY6TR have?
The device has 1 MB of Flash memory and 128 KB of SRAM, including 32 KB with hardware parity check.
- What is the purpose of the ART Accelerator™ in the STM32L486JGY6TR?
The ART Accelerator™ allows for 0-wait-state execution from Flash memory, enhancing performance.
