Overview
The STM32L452VCI6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L452xx 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 up to 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 memory interface and an extensive range of enhanced I/Os and peripherals connected to multiple buses.
The STM32L452VCI6 is designed for low-power applications, offering various power-saving modes and a wide temperature range of -40 to +85 °C (or +125 °C junction temperature). It supports independent power supplies for analog peripherals and features a comprehensive set of communication interfaces.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz |
| Memories | Up to 512 KB single-bank Flash, 160 KB SRAM (including 32 KB with hardware parity check) |
| Power Supply | 1.71 V to 3.6 V, with external SMPS support |
| Temperature Range | -40 °C to +85 °C (or +125 °C junction temperature) |
| Power Consumption | 145 nA in VBAT mode, 22 nA in Shutdown mode, 106 nA in Standby mode, 375 nA in Standby mode with RTC |
| 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 |
| Capacitive Sensing | Up to 21 capacitive sensing channels |
| Package | UFBGA 100 7x7x0.6 P 0.5 mm |
Key Features
- Ultra-low-power with FlexPowerControl, including multiple power-saving modes (VBAT, Shutdown, Standby, Stop 2)
- High-performance Arm® Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™), and DSP instructions
- High-speed memories: up to 512 KB Flash, 160 KB SRAM, and Quad SPI memory interface
- Rich analog peripherals: 12-bit ADC, 12-bit DAC, operational amplifier, and ultra-low-power comparators
- Extensive communication interfaces: USB 2.0 full-speed, I2C, SPI, USART, UART, LPUART, CAN, and SDMMC
- Up to 21 capacitive sensing channels supporting touchkey, linear, and rotary touch sensors
- Multiple timers: 1x 32-bit, 5x 16-bit, and 2x low-power 16-bit timers
- Independent power supplies for analog peripherals and RTC backup
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
- ECOPACK2® compliant packages
Applications
The STM32L452VCI6 is suitable for a wide range of low-power applications, including:
- IoT devices and smart home appliances
- Industrial automation and control systems
- Medical devices requiring low power consumption
- Automotive systems, especially those needing robust and reliable performance
- Consumer electronics, such as wearables and portable devices
- Sensor-based applications, leveraging the capacitive sensing capabilities
Q & A
- What is the core architecture of the STM32L452VCI6?
The STM32L452VCI6 is based on the Arm® Cortex®-M4 32-bit RISC core with a Floating Point Unit (FPU) and DSP instructions.
- What are the power supply ranges for the STM32L452VCI6?
The device operates from a 1.71 V to 3.6 V power supply, with support for external SMPS.
- What are the key power-saving modes of the STM32L452VCI6?
The device features VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode, among others, to minimize power consumption.
- What types of timers are available on the STM32L452VCI6?
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 analog peripherals are included in the STM32L452VCI6?
The device features a 12-bit ADC, a 12-bit DAC, an operational amplifier, and two ultra-low-power comparators.
- What communication interfaces are available on the STM32L452VCI6?
The device includes USB 2.0 full-speed, I2C, SPI, USART, UART, LPUART, CAN, and SDMMC interfaces.
- How many capacitive sensing channels does the STM32L452VCI6 support?
The device supports up to 21 capacitive sensing channels.
- What is the temperature range for the STM32L452VCI6?
The device operates in the -40 °C to +85 °C (or +125 °C junction temperature) range.
- What development tools are supported by the STM32L452VCI6?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ for development.
- Is the STM32L452VCI6 environmentally friendly?
Yes, the device is ECOPACK2® compliant.
