Overview
The STM32L462VET6 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 equipped with high-speed memories, including 512 KB of Flash memory and 160 KB of SRAM, along with a Quad SPI Flash memory interface. It offers an extensive range of enhanced I/Os and peripherals connected to multiple buses, including two APB buses, two AHB buses, and a 32-bit multi-AHB bus matrix.
The STM32L462VET6 includes several protection mechanisms for embedded Flash memory and SRAM, such as readout protection, write protection, proprietary code readout protection, and Firewall. It also features a variety of analog and digital peripherals, including a fast 12-bit ADC, two comparators, one operational amplifier, one DAC channel, and an internal voltage reference buffer.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz |
| Flash Memory | 512 KB single bank, proprietary code readout protection |
| SRAM | 160 KB, including 32 KB with hardware parity check |
| Power Supply | 1.71 V to 3.6 V |
| Operating Temperature | -40 °C to 85 °C / -40 °C to 125 °C (junction) |
| ADC | 12-bit, 5 Msps, up to 16-bit with hardware oversampling |
| DAC | 1x 12-bit output channel, low-power sample and hold |
| Timers | 1x 32-bit, 5x 16-bit, 2x low-power 16-bit timers |
| Communication Interfaces | 4x I2C, 3x SPI, 3x USART, 1x UART, 1x Low-Power UART, 1x SAI, 1x SDMMC, 1x CAN, 1x USB full-speed device crystal less |
| Package | LQFP 100 14x14x1.4 mm |
| Power Modes | 145 nA in VBAT mode, 22 nA Shutdown mode, 106 nA Standby mode, 375 nA Standby mode with RTC, 2.05 µA Stop 2 mode, 84 µA/MHz run mode |
Key Features
- Ultra-low-power with FlexPowerControl
- Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™)
- High-speed memories: 512 KB Flash, 160 KB SRAM, Quad SPI Flash memory interface
- Extensive range of enhanced I/Os and peripherals
- Protection mechanisms: readout protection, write protection, proprietary code readout protection, Firewall
- Analog peripherals: 12-bit ADC, 12-bit DAC, operational amplifier, comparators, internal voltage reference buffer
- Communication interfaces: I2C, SPI, USART, UART, Low-Power UART, SAI, SDMMC, CAN, USB full-speed device crystal less
- AES hardware accelerator for encryption
- Capacitive sensing channels: up to 21 channels
- Low-power RTC with HW calendar, alarms, and calibration
- Multiple power-saving modes: VBAT mode, Shutdown mode, Standby mode, Stop 2 mode
Applications
The STM32L462VET6 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 low power and high precision
- Consumer electronics such as smart home devices and wearables
- Automotive systems, especially those requiring low power and robust performance
- IoT devices that need efficient power management and advanced peripherals
- Energy metering and monitoring systems
Q & A
- What is the core architecture of the STM32L462VET6?
The STM32L462VET6 is based on the Arm® 32-bit Cortex®-M4 CPU with a Floating Point Unit (FPU).
- What is the maximum operating frequency of the STM32L462VET6?
The maximum operating frequency is up to 80 MHz.
- How much Flash and SRAM memory does the STM32L462VET6 have?
The device has 512 KB of Flash memory and 160 KB of SRAM.
- What are the power supply voltage ranges for the STM32L462VET6?
The power supply voltage ranges from 1.71 V to 3.6 V.
- What are the operating temperature ranges for the STM32L462VET6?
The operating temperature ranges from -40 °C to 85 °C / -40 °C to 125 °C (junction).
- What types of communication interfaces are available on the STM32L462VET6?
The device features I2C, SPI, USART, UART, Low-Power UART, SAI, SDMMC, CAN, and USB full-speed device crystal less interfaces.
- Does the STM32L462VET6 have any encryption capabilities?
Yes, it includes an AES hardware accelerator for 128/256-bit key encryption.
- What are the power-saving modes available on the STM32L462VET6?
The device supports VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode.
- How many capacitive sensing channels does the STM32L462VET6 support?
It supports up to 21 capacitive sensing channels.
- What is the package type for the STM32L462VET6?
The package type is LQFP 100 14x14x1.4 mm.
- Is the STM32L462VET6 RoHS compliant?
Yes, it is RoHS compliant and follows the Ecopack2 standard.
