Overview
The STM32L452RCT6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L4 series. It is based on the Arm® Cortex®-M4 core with a floating-point unit (FPU), making it suitable for a wide range of applications that require high performance and low power consumption. This MCU is designed to operate within a voltage range of 1.71 V to 3.6 V and can function in temperatures from -40 °C to 85/125 °C, ensuring reliability in various environmental conditions.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz |
| Memory | Up to 512 KB 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 85/125 °C |
| Low-Power Modes | VBAT mode: 145 nA, Shutdown mode: 22 nA, Standby mode: 106 nA, Stop 2 mode: 2.05 µA (with RTC: 2.40 µA) |
| Run Mode Current | 84 µA/MHz (LDO Mode), 36 μA/MHz (SMPS Mode @3.3 V) |
| Clock Sources | 4 to 48 MHz crystal oscillator, 32 kHz crystal oscillator for RTC, internal 16 MHz RC, internal low-power 32 kHz RC, internal multispeed 100 kHz to 48 MHz oscillator |
| Communication Interfaces | USB 2.0 full-speed, SAI, I2C, USARTs, UART, LPUART, SPIs, CAN, SDMMC |
| Analog Peripherals | 12-bit ADC, 12-bit DAC, operational amplifier, ultra-low-power comparators, voltage reference buffer |
| Timers | 12x timers including 16-bit advanced motor-control, 32-bit and 16-bit general purpose, low-power timers, watchdogs, SysTick timer |
Key Features
- Ultra-Low Power Consumption: Features various low-power modes such as VBAT, Shutdown, Standby, and Stop 2 modes to minimize energy usage.
- High Performance: Arm® Cortex®-M4 core with FPU, Adaptive real-time accelerator (ART Accelerator™), and up to 80 MHz frequency.
- Rich Analog and Digital Peripherals: Includes 12-bit ADC, 12-bit DAC, operational amplifier, ultra-low-power comparators, and multiple timers.
- Advanced Communication Interfaces: Supports USB 2.0 full-speed, SAI, I2C, USARTs, UART, LPUART, SPIs, CAN, and SDMMC.
- Security and Development Support: Features a true random number generator, CRC calculation unit, 96-bit unique ID, and support for serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
Applications
- Industrial Automation: Suitable for control systems, motor control, and sensor interfaces due to its advanced timers and analog peripherals.
- Medical Devices: Ideal for medical equipment requiring low power consumption and high reliability.
- Consumer Electronics: Used in smart home devices, wearables, and other consumer electronics that need efficient power management.
- Automotive Systems: Can be used in automotive applications such as infotainment systems, driver assistance systems, and vehicle control units.
- IoT Devices: Perfect for Internet of Things (IoT) applications that require low power consumption and robust communication capabilities.
Q & A
- What is the core architecture of the STM32L452RCT6?
The STM32L452RCT6 is based on the Arm® 32-bit Cortex®-M4 CPU with a floating-point unit (FPU).
- What is the operating voltage range of the STM32L452RCT6?
The operating voltage range is from 1.71 V to 3.6 V.
- What are the low-power modes available in the STM32L452RCT6?
The available low-power modes include VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode.
- What are the key communication interfaces supported by the STM32L452RCT6?
The MCU supports USB 2.0 full-speed, SAI, I2C, USARTs, UART, LPUART, SPIs, CAN, and SDMMC.
- What type of analog peripherals does the STM32L452RCT6 have?
The MCU includes a 12-bit ADC, 12-bit DAC, operational amplifier, ultra-low-power comparators, and a voltage reference buffer.
- How many timers does the STM32L452RCT6 have?
The MCU features 12 timers, including 16-bit advanced motor-control, 32-bit and 16-bit general purpose, low-power timers, watchdogs, and a SysTick timer.
- What is the maximum frequency of the STM32L452RCT6?
The maximum frequency is up to 80 MHz.
- Does the STM32L452RCT6 support any security features?
Yes, it features a true random number generator, CRC calculation unit, and a 96-bit unique ID.
- What development tools are supported by the STM32L452RCT6?
The MCU supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
- What are some typical applications of the STM32L452RCT6?
Typical applications include industrial automation, medical devices, consumer electronics, automotive systems, and IoT devices.
