Overview
The STM32L152RET6 is a microcontroller from STMicroelectronics, part of the STM32L1 series. It is designed for ultra-low-power applications, making it ideal for battery-powered devices and energy-efficient systems. This microcontroller features an ARM® Cortex®-M3 32-bit CPU and is known for its robust set of peripherals and low power consumption characteristics.
Key Specifications
| Specification | Details |
|---|---|
| CPU | ARM® Cortex®-M3 32-bit CPU, up to 32 MHz |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40 °C to 105 °C |
| Flash Memory | 512 KB with ECC |
| SRAM | 80 KB |
| EEPROM | 16 KB with ECC |
| GPIO | 51 GPIOs with external interrupt capability |
| ADC | 12-bit ADC with up to 40 channels |
| DAC | 12-bit DAC with 2 channels and output buffers |
| Timers | 11 timers including 1x 32-bit and 6x 16-bit timers |
| Communication Interfaces | USB 2.0, 5x USARTs, up to 8x SPIs, 2x I2Cs |
| Package | LQFP64 (10 × 10 mm) |
Key Features
- Ultra-low-power platform with multiple low-power modes (Standby, Stop, Low-power run, Low-power sleep)
- Rich set of analog peripherals including operational amplifiers, comparators, and a temperature sensor
- Advanced clock management with internal oscillators and PLL for CPU and USB clock
- Memory protection unit and reset and supply management with low-power BOR and PVD
- Support for capacitive sensing with up to 34 channels
- Integrated LCD driver (except for STM32L151xE devices)
- DMA controller with 12 channels
- On-chip bootloader supporting USB and USART
Applications
- Battery-powered devices such as smart meters, fitness trackers, and wearable devices
- Industrial automation and control systems requiring low power consumption
- Medical devices that need to be energy-efficient
- Consumer electronics like remote controls, gaming devices, and home automation systems
- Automotive systems where low power and reliability are crucial
Q & A
- What is the maximum CPU frequency of the STM32L152RET6?
The maximum CPU frequency is 32 MHz.
- What is the power supply range for the STM32L152RET6?
The power supply range is from 1.65 V to 3.6 V.
- How much flash memory does the STM32L152RET6 have?
The STM32L152RET6 has 512 KB of flash memory with ECC.
- What types of communication interfaces are available on the STM32L152RET6?
The microcontroller supports USB 2.0, 5x USARTs, up to 8x SPIs, and 2x I2Cs.
- Does the STM32L152RET6 have an integrated LCD driver?
- What are the low-power modes available on the STM32L152RET6?
The available low-power modes include Standby, Stop, Low-power run, and Low-power sleep.
- How many GPIOs does the STM32L152RET6 have?
The microcontroller has 51 GPIOs with external interrupt capability.
- Does the STM32L152RET6 support capacitive sensing?
- What is the package type for the STM32L152RET6?
The package type is LQFP64 (10 × 10 mm).
- Does the STM32L152RET6 have a built-in bootloader?
