Overview
The STM32L451VCT6 is a microcontroller from STMicroelectronics, part of the STM32L4 series. It is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with an integrated floating-point unit (FPU), making it highly efficient for a wide range of applications. This microcontroller is designed to provide high performance while minimizing power consumption, making it ideal for battery-powered devices and energy-sensitive applications.
Key Specifications
| Specification | Value |
|---|---|
| Data Bus Width | 32 bit |
| ADC Resolution | 12 bit |
| Maximum Clock Frequency | 80 MHz |
| Number of I/Os | 83 I/Os |
| Flash Memory | Up to 512 KB (256 KB for STM32L451VCT6) |
| SRAM | 160 KB |
| Power Supply | 1.71 V to 3.6 V |
| Temperature Range | -40 °C to 85/125 °C |
| Package Type | 100LQFP |
Key Features
- Ultra-low-power with FlexPowerControl, including modes like VBAT, Shutdown, Standby, and Stop 2 modes.
- Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™), and up to 100 DMIPS.
- Rich analog peripherals including 12-bit ADC, 12-bit DAC, operational amplifier, and ultra-low-power comparators.
- Multiple communication interfaces such as SAI, I2C, USARTs, UART, LPUART, SPIs, CAN, and SDMMC.
- RTC with HW calendar, alarms, and calibration.
- Up to 21 capacitive sensing channels and a touch sensing controller.
- True random number generator, CRC calculation unit, and 96-bit unique ID.
- Development support with serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
Applications
The STM32L451VCT6 is suitable for a variety of applications where low power consumption and high performance are critical. These include:
- Battery-powered devices such as smart meters, fitness trackers, and IoT devices.
- Industrial automation and control systems.
- Medical devices requiring low power and high reliability.
- Automotive systems, especially those requiring low power modes.
- Consumer electronics such as smart home devices and wearables.
Q & A
- What is the core architecture of the STM32L451VCT6?
The STM32L451VCT6 features an Arm® 32-bit Cortex®-M4 CPU with an integrated floating-point unit (FPU). - What is the maximum clock frequency of the STM32L451VCT6?
The maximum clock frequency is up to 80 MHz. - What are the power supply voltage ranges for the STM32L451VCT6?
The power supply voltage ranges from 1.71 V to 3.6 V. - What are the key low-power modes of the STM32L451VCT6?
The key low-power modes include VBAT, Shutdown, Standby, and Stop 2 modes. - What types of communication interfaces does the STM32L451VCT6 support?
The microcontroller supports SAI, I2C, USARTs, UART, LPUART, SPIs, CAN, and SDMMC interfaces. - Does the STM32L451VCT6 have any built-in security features?
Yes, it includes a true random number generator, CRC calculation unit, and a 96-bit unique ID. - What is the temperature range for the STM32L451VCT6?
The temperature range is from -40 °C to 85/125 °C. - What is the package type for the STM32L451VCT6?
The package type is 100LQFP. - Does the STM32L451VCT6 support touch sensing?
Yes, it supports up to 21 capacitive sensing channels and includes a touch sensing controller. - What development tools are available for the STM32L451VCT6?
Development support includes serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
