Overview
The STM32L151VBH6TR is a 32-bit microcontroller from STMicroelectronics, part of the STM32L series. It is built around the high-performance ARM Cortex-M3 32-bit RISC core, operating at a frequency of up to 32 MHz. This ultra-low-power device is designed to provide a balance between performance and power efficiency, making it suitable for a wide range of applications that require low energy consumption.
The microcontroller features a comprehensive set of peripherals, including high-speed embedded memories, advanced communication interfaces, and rich analog peripherals. It is available in a 100-pin UFBGA package and supports a wide temperature range from -40°C to 85°C, extendable to 105°C in low power dissipation states.
Key Specifications
| Parameter | Value |
|---|---|
| Core | ARM Cortex-M3 32-bit CPU |
| Frequency | Up to 32 MHz |
| Flash Memory | Up to 128 Kbytes |
| RAM | Up to 16 Kbytes |
| EEPROM | Up to 4 Kbytes with ECC |
| Backup Register | 80 bytes |
| Power Supply | 1.65 V to 3.6 V (down to 1.65 V at power down) |
| Temperature Range | -40°C to 85°C (extendable to 105°C in low power dissipation states) |
| Package | 100-pin UFBGA |
| ADC | 12-bit, up to 24 channels |
| DAC | 12-bit, 2 channels with output buffers |
| Comparators | 2 ultra-low-power comparators |
| Timers | 6 general-purpose 16-bit timers, 2 basic timers, 2 watchdog timers |
| Communication Interfaces | USB 2.0, 3 USARTs, 2 SPIs, 2 I2Cs |
| Capacitive Sensing Channels | Up to 20 channels |
Key Features
- Ultra-low-power platform: Offers various power-saving modes including Standby, Stop, and Low-power run modes.
- High-performance core: ARM Cortex-M3 32-bit CPU operating at up to 32 MHz.
- Rich peripherals: Includes 12-bit ADC, 12-bit DACs, ultra-low-power comparators, and multiple timers.
- Advanced communication interfaces: Supports USB 2.0, USARTs, SPIs, and I2Cs.
- Capacitive sensing: Up to 20 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- Memory protection unit (MPU): Enhances system security.
- Real-time clock and backup registers: Maintains time and data in Standby mode.
- Low power consumption: Standby mode as low as 0.3 μA, Stop mode as low as 0.57 μA.
- Fast wakeup time: Less than 8 μs.
- High-speed I/Os: Up to 83 fast I/Os, all mappable on 16 external interrupt vectors.
Applications
- Industrial automation: Suitable for control systems and sensors due to its low power consumption and rich peripherals.
- Medical devices: Ideal for portable medical devices requiring low power and high performance.
- Consumer electronics: Used in smart home devices, wearables, and other consumer electronics where power efficiency is crucial.
- Automotive systems: Can be used in various automotive applications such as infotainment systems and sensor controls.
- IoT devices: Perfect for Internet of Things (IoT) applications that require low power and advanced communication capabilities.
Q & A
- What is the core architecture of the STM32L151VBH6TR?
The core architecture is based on the ARM Cortex-M3 32-bit RISC CPU.
- What is the maximum operating frequency of the STM32L151VBH6TR?
The maximum operating frequency is up to 32 MHz.
- What types of memory does the STM32L151VBH6TR have?
The device features up to 128 Kbytes of Flash memory, up to 16 Kbytes of RAM, and up to 4 Kbytes of true EEPROM with ECC.
- What is the power supply range for the STM32L151VBH6TR?
The power supply range is from 1.65 V to 3.6 V (down to 1.65 V at power down).
- What are the key power-saving modes of the STM32L151VBH6TR?
The device offers Standby, Stop, and Low-power run modes, with Standby mode as low as 0.3 μA and Stop mode as low as 0.57 μA.
- What communication interfaces are available on the STM32L151VBH6TR?
The device supports USB 2.0, 3 USARTs, 2 SPIs, and 2 I2Cs.
- How many capacitive sensing channels does the STM32L151VBH6TR have?
The device has up to 20 capacitive sensing channels.
- What is the temperature range for the STM32L151VBH6TR?
The operating temperature range is from -40°C to 85°C, extendable to 105°C in low power dissipation states.
- What package options are available for the STM32L151VBH6TR?
The device is available in a 100-pin UFBGA package.
- Does the STM32L151VBH6TR support real-time clock functionality?
Yes, it includes a real-time clock and backup registers that remain powered in Standby mode.
- What is the typical current consumption in Run mode for the STM32L151VBH6TR?
The typical current consumption in Run mode is 214 μA/MHz.
