Overview
The STM32L452VCT6 is an ultra-low-power microcontroller from STMicroelectronics, based on the high-performance Arm® Cortex®-M4 32-bit RISC core. This microcontroller 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 part of the STM32L452xx family, which is known for its low power consumption and extensive range of peripherals. It includes high-speed memories such as up to 512 Kbyte of Flash memory and 160 Kbyte of SRAM, along with a Quad SPI Flash memory interface. The microcontroller supports various power-saving modes, making it suitable for designing low-power applications.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz |
| Power Supply | 1.71 V to 3.6 V |
| Temperature Range | -40 °C to 85/125 °C |
| Flash Memory | Up to 512 KB |
| SRAM | 160 KB (including 32 KB with hardware parity check) |
| ADC | 12-bit, 5 Msps, up to 16-bit with hardware oversampling |
| DAC | 12-bit, low-power sample and hold |
| Timers | 1x 32-bit, 5x 16-bit (including 1 advanced motor-control and 2 low-power timers) |
| Communication Interfaces | USB 2.0 full-speed, 4x I2C, 3x SPI, 3x USART, 1x UART, 1x LPUART, CAN 2.0B Active, SDMMC |
| Package | LQFP 100 14x14x1.4 mm |
| Power Consumption | 145 nA in VBAT mode, 22 nA in Shutdown mode, 84 µA/MHz in Run mode (LDO), 36 μA/MHz in Run mode (SMPS) |
Key Features
- Ultra-low-power with FlexPowerControl and multiple power-saving modes
- High-performance Arm® Cortex®-M4 CPU with FPU and DSP instructions
- Memory Protection Unit (MPU) for enhanced security
- Rich analog peripherals including 12-bit ADC, 12-bit DAC, operational amplifier, and ultra-low-power comparators
- Extensive communication interfaces: USB 2.0, I2C, SPI, USART, UART, LPUART, CAN, SDMMC
- Up to 21 capacitive sensing channels supporting touchkey, linear, and rotary touch sensors
- Internal voltage reference buffer and low-power RTC with HW calendar and alarms
- 14-channel DMA controller, true random number generator, and CRC calculation unit
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
Applications
The STM32L452VCT6 is suitable for a wide range of applications that require low power consumption and high performance. These include:
- IoT devices and smart home appliances
- Industrial automation and control systems
- Medical devices and healthcare equipment
- Automotive systems and telematics
- Consumer electronics and wearable devices
- Energy metering and smart grid applications
Q & A
- What is the core architecture of the STM32L452VCT6?
The STM32L452VCT6 is based on the Arm® 32-bit Cortex®-M4 CPU with a Floating Point Unit (FPU).
- What is the power supply range for the STM32L452VCT6?
The power supply range is from 1.71 V to 3.6 V.
- What are the temperature ranges supported by the STM32L452VCT6?
The device operates in the -40 °C to 85/125 °C temperature range.
- How much Flash and SRAM memory does the STM32L452VCT6 have?
The device has up to 512 KB of Flash memory and 160 KB of SRAM.
- What types of communication interfaces are available on the STM32L452VCT6?
The device includes USB 2.0, I2C, SPI, USART, UART, LPUART, CAN, and SDMMC interfaces.
- What are the key analog peripherals of the STM32L452VCT6?
The device features a 12-bit ADC, 12-bit DAC, operational amplifier, and ultra-low-power comparators.
- Does the STM32L452VCT6 support capacitive sensing?
Yes, it supports up to 21 capacitive sensing channels.
- What are the power consumption modes of the STM32L452VCT6?
The device has multiple power-saving modes including VBAT, Shutdown, Standby, and Stop modes.
- Is the STM32L452VCT6 suitable for industrial applications?
Yes, it is suitable for industrial automation and control systems due to its robust features and low power consumption.
- What development tools are supported by the STM32L452VCT6?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
