Overview
The STM32L452RET6 is an ultra-low-power microcontroller from STMicroelectronics, based on the Arm Cortex-M4 32-bit RISC core. It features a floating-point unit (FPU) and operates within a voltage range of 1.71 V to 3.6 V. This MCU is designed for applications requiring low power consumption and high performance, making it suitable for a wide range of industrial, medical, and consumer electronics.
Key Specifications
| Parameter | Value |
|---|---|
| Core | Arm Cortex-M4 32-bit RISC core with FPU |
| Flash Memory | Up to 512 KB |
| SRAM | 160 KB (including 32 KB with hardware parity check) |
| Operating Voltage | 1.71 V to 3.6 V |
| Operating Temperature | -40 °C to 85/125 °C |
| UART | 1 |
| USART | 3 |
| SPI | 3 |
| I2C | 4 (FM+) |
| CAN | 1 (2.0B Active) |
| D/A Converters | 1 (12-bit) |
| A/D Converters | 1 (12-bit, up to 16-bit with hardware oversampling) |
| Timers | 12 (including 1x 32-bit and 5x 16-bit general purpose, 2x 16-bit basic, 2x low-power 16-bit timers) |
| High Current I/Os | 52 |
| Integrated Op-Amps | 1 |
| Comparators | 2 |
Key Features
- Ultra-low-power consumption with FlexPowerControl, including modes like VBAT, Shutdown, Standby, and Stop 2.
- Batch acquisition mode (BAM) and fast wakeup from Stop mode.
- Rich analog peripherals including a 12-bit ADC, 12-bit DAC, operational amplifier, and ultra-low-power comparators.
- Multiple communication interfaces such as USB 2.0, SAI, I2C, USART, SPI, and CAN.
- Support for capacitive sensing channels and touchkey, linear, and rotary touch sensors.
- Development support with serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
- All packages are ECOPACK2® compliant.
Applications
- Industrial automation and control systems.
- Medical devices requiring low power consumption.
- Consumer electronics such as smart home devices and wearables.
- Automotive systems, especially those requiring CAN communication.
- IoT devices and sensor networks.
Q & A
- What is the core architecture of the STM32L452RET6?
The STM32L452RET6 is based on the Arm Cortex-M4 32-bit RISC core with a floating-point unit (FPU).
- What is the operating voltage range of the STM32L452RET6?
The operating voltage range is from 1.71 V to 3.6 V.
- What are the key power-saving features of the STM32L452RET6?
The MCU features ultra-low-power modes such as VBAT, Shutdown, Standby, and Stop 2, along with batch acquisition mode (BAM) and fast wakeup from Stop mode.
- How much flash and SRAM memory does the STM32L452RET6 have?
The MCU has up to 512 KB of flash memory and 160 KB of SRAM.
- What communication interfaces are available on the STM32L452RET6?
The MCU includes interfaces such as USB 2.0, SAI, I2C, USART, SPI, and CAN.
- Does the STM32L452RET6 support touch sensing?
- What are the temperature ranges for the STM32L452RET6?
The operating temperature range is from -40 °C to 85/125 °C.
- Is the STM32L452RET6 suitable for automotive applications?
- What development tools are available for the STM32L452RET6?
- Are the packages of the STM32L452RET6 environmentally friendly?
