Overview
The STM32L462VET6TR is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L462xx 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 Cortex-M4 core includes a Floating Point Unit (FPU) that 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 device features high-speed memories, including 512 KB of single-bank Flash memory and 160 KB of SRAM, with 32 KB of SRAM having hardware parity check. It also includes a Quad SPI Flash memory interface and an extensive range of enhanced I/Os and peripherals connected to multiple buses.
The STM32L462VET6TR offers several power-saving modes, making it suitable for low-power applications, and operates in a temperature range of -40 to +85 °C (or +125 °C junction temperature) from a 1.71 to 3.6 V power supply.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz |
| Memories | 512 KB single-bank Flash, 160 KB SRAM (including 32 KB with hardware parity check) |
| Power Supply | 1.71 V to 3.6 V |
| Temperature Range | -40 °C to +85 °C (or +125 °C junction temperature) |
| 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, 2.40 µA with RTC, 84 µA/MHz run mode |
| Timers | 1x 32-bit, 5x 16-bit (including 1 advanced motor-control timer), 2x low-power 16-bit timers |
| Analog Peripherals | 1x 12-bit ADC (5 Msps), 1x 12-bit DAC, 1x operational amplifier, 2x ultra-low-power comparators |
| Communication Interfaces | USB 2.0 full-speed, 4x I2C, 3x SPI, 3x USART, 1x UART, 1x LPUART, CAN (2.0B Active), SDMMC interface |
| Security Features | AES hardware accelerator, proprietary code readout protection, Firewall |
| Package | LQFP 100 14x14x1.4 mm |
Key Features
- Ultra-low-power with FlexPowerControl and multiple power-saving modes.
- High-performance Arm® Cortex®-M4 CPU with FPU and DSP instructions.
- Extensive range of enhanced I/Os and peripherals, including capacitive sensing channels and rich analog peripherals.
- Advanced communication interfaces such as USB 2.0 full-speed, I2C, SPI, USART, UART, LPUART, CAN, and SDMMC.
- AES hardware accelerator for encryption.
- Internal multispeed oscillators and PLLs for system clock, audio, and ADC.
- RTC with hardware calendar, alarms, and calibration.
- True random number generator and CRC calculation unit.
- Development support with serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
Applications
The STM32L462VET6TR is suitable for a wide range of applications requiring low power consumption and high performance, such as:
- IoT devices and smart sensors.
- Industrial automation and control systems.
- Medical devices and healthcare equipment.
- Consumer electronics, including wearables and portable devices.
- Automotive systems, especially those requiring low power and high reliability.
Q & A
- What is the core architecture of the STM32L462VET6TR?
The STM32L462VET6TR is based on the Arm® Cortex®-M4 32-bit RISC core with a Floating Point Unit (FPU).
- What are the power supply and temperature ranges for this device?
The device operates from a 1.71 to 3.6 V power supply and in a temperature range of -40 °C to +85 °C (or +125 °C junction temperature).
- What are the key power-saving modes of the STM32L462VET6TR?
The device features several power-saving modes, including VBAT mode, Shutdown mode, Standby mode, Stop 2 mode, and run mode.
- What types of timers are available on this microcontroller?
The device includes 1x 32-bit timer, 5x 16-bit timers (including 1 advanced motor-control timer), and 2x low-power 16-bit timers.
- What are the main analog peripherals of the STM32L462VET6TR?
The device features a 12-bit ADC, a 12-bit DAC, an operational amplifier, and two ultra-low-power comparators.
- What communication interfaces are supported by this microcontroller?
The device supports USB 2.0 full-speed, I2C, SPI, USART, UART, LPUART, CAN, and SDMMC interfaces.
- Does the STM32L462VET6TR have any security features?
Yes, it includes an AES hardware accelerator, proprietary code readout protection, and a Firewall.
- What package options are available for the STM32L462VET6TR?
The device is available in an LQFP 100 14x14x1.4 mm package.
- What development tools and support are available for this microcontroller?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ for development.
- Is the STM32L462VET6TR compliant with any environmental standards?
Yes, it is ECOPACK2 compliant.
- What is the typical current consumption in run mode for the STM32L462VET6TR?
The typical current consumption in run mode is 84 µA/MHz.
