Overview
The STM32L151VBH6A is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L series. It is based on the ARM Cortex-M3 32-bit RISC core, operating at a frequency of up to 32 MHz. This device is designed to provide high performance while minimizing power consumption, making it ideal for battery-powered devices and other low-power applications. The STM32L151VBH6A features a comprehensive set of peripherals, including high-speed embedded memories, advanced communication interfaces, and a rich set of analog peripherals.
Key Specifications
| Parameter | Value |
|---|---|
| Core | ARM Cortex-M3 32-bit CPU |
| Operating Frequency | Up to 32 MHz |
| Memory | Up to 128 Kbytes Flash, up to 32 Kbytes RAM, up to 4 Kbytes true EEPROM |
| Supply Voltage | 1.65 V to 3.6 V |
| Temperature Range | -40 °C to 105 °C |
| Package | UFBGA 100 7x7x0.6 P 0.5 mm |
| ADC | 12-bit, up to 24 channels |
| DAC | 12-bit, 2 channels with output buffers |
| Timers | 6x 16-bit with up to 4 IC/OC/PWM channels, 2x 16-bit basic timers |
| Communication Interfaces | 1x USB 2.0, 3x USART, 2x SPI, 2x I2C |
| Capacitive Sensing Channels | Up to 20 channels |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, Low-power Run)
- High-speed embedded memories: Flash up to 128 Kbytes, RAM up to 32 Kbytes, and true EEPROM up to 4 Kbytes
- Rich analog peripherals: 12-bit ADC, 12-bit DAC, ultra-low-power comparators
- Advanced communication interfaces: USB 2.0, USART, SPI, I2C
- Up to 20 capacitive sensing channels for touch sensing functionality
- Real-time clock with sub-second counting and backup registers
- Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
- High-speed internal oscillators and PLL for CPU clock and USB
- Development support: Serial wire debug, JTAG, and trace supported
Applications
The STM32L151VBH6A is suitable for a wide range of applications that require low power consumption and high performance. These include:
- Battery-powered devices such as smart meters, fitness trackers, and wearable devices.
- Industrial automation and control systems.
- Medical devices requiring low power and high reliability.
- Consumer electronics such as remote controls, gaming devices, and home appliances.
- Automotive systems, especially those requiring low power and robust performance.
Q & A
- What is the core architecture of the STM32L151VBH6A?
The STM32L151VBH6A is based on the ARM Cortex-M3 32-bit RISC core.
- What is the operating frequency range of the STM32L151VBH6A?
The operating frequency range is up to 32 MHz.
- What are the memory options available on the STM32L151VBH6A?
The device features up to 128 Kbytes of Flash memory, up to 32 Kbytes of RAM, and up to 4 Kbytes of true EEPROM.
- What is the supply voltage range for the STM32L151VBH6A?
The supply voltage range is from 1.65 V to 3.6 V.
- What are the key power-saving modes available on the STM32L151VBH6A?
The device offers Standby, Stop, and Low-power Run modes to minimize power consumption.
- Does the STM32L151VBH6A support capacitive touch sensing?
- What communication interfaces are available on the STM32L151VBH6A?
The device includes USB 2.0, USART, SPI, and I2C interfaces.
- What is the temperature range for the STM32L151VBH6A?
The operating temperature range is from -40 °C to 105 °C.
- Does the STM32L151VBH6A have a real-time clock?
- What development tools are supported by the STM32L151VBH6A?
The device supports serial wire debug, JTAG, and trace.
