Overview
The STM32L151VBT6D is an ultra-low-power microcontroller from STMicroelectronics' STM32L1 series. It features an ARM Cortex-M3 32-bit RISC core operating at a frequency of 32 MHz (33.3 DMIPS). This device is designed for low-power applications and integrates a memory protection unit (MPU), high-speed embedded memories, and an extensive range of enhanced I/Os and peripherals connected to two APB buses. The STM32L151VBT6D is particularly suited for applications requiring high performance, low power consumption, and advanced connectivity options such as USB, USART, SPI, and I2C.
Key Specifications
| Parameter | Specification |
|---|---|
| Core Processor | ARM Cortex-M3, 32-bit |
| Operating Frequency | Up to 32 MHz (33.3 DMIPS) |
| Flash Memory | Up to 128 Kbytes with ECC |
| RAM | Up to 16 Kbytes |
| EEPROM | Up to 4 Kbytes with ECC |
| Backup Register | 80 bytes |
| Power Supply | 1.8 V to 3.6 V (down to 1.65 V at power down) |
| Operating Temperature | -40°C to +85°C (extended to +105°C in low power dissipation state) |
| Package | 100-LQFP |
| I/Os | Up to 83 fast I/Os (73 I/Os 5V tolerant) |
| Analog Peripherals | 12-bit ADC (up to 24 channels), 12-bit DAC (2 channels), 2 ultra-low-power comparators |
| Communication Interfaces | USB 2.0, 3x USART, 2x SPI, 2x I2C |
| Timers | 6x 16-bit timers with up to 4 IC/OC/PWM channels, 2x 16-bit basic timers, 2x watchdog timers |
| Capacitive Sensing Channels | Up to 20 channels supporting touchkey, linear, and rotary touch sensors |
Key Features
- Ultra-low-power platform with multiple power-saving modes
- High-performance ARM Cortex-M3 core at 32 MHz
- Memory protection unit (MPU) and reset and supply management
- Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
- Programmable voltage detector (PVD) and various clock sources
- Rich analog peripherals including 12-bit ADC, 12-bit DAC, and ultra-low-power comparators
- Advanced communication interfaces such as USB, USART, SPI, and I2C
- Up to 20 capacitive sensing channels for touch sensing functionality
- Real-time clock with sub-second counting and backup registers
- Support for serial wire debug, JTAG, and trace
Applications
- Low-power IoT devices and smart home applications
- Portable and battery-powered devices such as wearables and handheld devices
- Industrial automation and control systems requiring low power consumption
- Medical devices and healthcare applications where power efficiency is crucial
- Automotive systems, especially those requiring advanced connectivity and low power
Q & A
- What is the core processor of the STM32L151VBT6D?
The core processor is an ARM Cortex-M3, 32-bit RISC core.
- What is the maximum operating frequency of the STM32L151VBT6D?
The maximum operating frequency is 32 MHz.
- How much Flash memory does the STM32L151VBT6D have?
The device has up to 128 Kbytes of Flash memory with ECC.
- What is the power supply range for the STM32L151VBT6D?
The power supply range is from 1.8 V to 3.6 V (down to 1.65 V at power down).
- What are the key analog peripherals of the STM32L151VBT6D?
The key analog peripherals include a 12-bit ADC (up to 24 channels), 12-bit DAC (2 channels), and 2 ultra-low-power comparators.
- Does the STM32L151VBT6D support touch sensing functionality?
Yes, it supports up to 20 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- What communication interfaces are available on the STM32L151VBT6D?
The device includes USB 2.0, 3x USART, 2x SPI, and 2x I2C interfaces.
- What is the operating temperature range of the STM32L151VBT6D?
The operating temperature range is -40°C to +85°C (extended to +105°C in low power dissipation state).
- Does the STM32L151VBT6D have a real-time clock?
Yes, it includes a real-time clock with sub-second counting and backup registers.
- What development tools are supported by the STM32L151VBT6D?
The device supports serial wire debug, JTAG, and trace.
