Overview
The STM32L151CBU6D, manufactured by STMicroelectronics, is an ultra-low-power microcontroller based on the ARM Cortex-M3 32-bit RISC core. It operates at a frequency of up to 32 MHz and achieves 33.3 DMIPS. This device is part of the STM32L151x6/8/B series, which combines high performance with advanced power-saving features, making it suitable for a wide range of applications from portable devices to industrial control systems.
The STM32L151CBU6D features a comprehensive set of peripherals, including high-speed embedded memories, enhanced I/Os, and advanced communication interfaces. It supports multiple power-saving modes, including Standby, Stop, and Low-power run modes, ensuring low power consumption and extended battery life in portable applications.
Key Specifications
| Specification | Details |
|---|---|
| Core | ARM Cortex-M3 32-bit RISC core |
| Frequency | Up to 32 MHz |
| 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 to 3.6 V (down to 1.65 V at power down) |
| Temperature Range | -40°C to +85°C (extended to 105°C in low power dissipation state) |
| ADC | 12-bit, 1 Msps, 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, 2x watchdog timers |
| Communication Interfaces | 1x USB 2.0, 3x USARTs, 2x SPIs, 2x I2Cs |
| Capacitive Sensing Channels | Up to 20 channels supporting touchkey, linear, and rotary touch sensors |
| I/Os | Up to 83 fast I/Os (73 I/Os 5V tolerant) |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, Low-power run)
- High-performance ARM Cortex-M3 32-bit RISC core operating at up to 32 MHz
- High-speed embedded memories: up to 128 Kbytes Flash, up to 16 Kbytes RAM, and up to 4 Kbytes EEPROM
- Rich analog peripherals: 12-bit ADC, 12-bit DAC, and ultra-low-power comparators
- Advanced communication interfaces: USB 2.0, USARTs, SPIs, and I2Cs
- Up to 20 capacitive sensing channels for touch sensing functionality
- Real-time clock and backup registers
- Ultra-safe, low-power BOR with 5 selectable thresholds and programmable voltage detector (PVD)
- Development support: serial wire debug, JTAG, and trace supported
Applications
The STM32L151CBU6D is versatile and can be used in a variety of applications due to its low power consumption and high-performance capabilities. Some of the key application areas include:
- Portable devices such as smart meters, fitness trackers, and wearable devices
- Industrial control systems, including automation and monitoring
- Medical devices requiring low power and high reliability
- Consumer electronics, such as remote controls and home automation systems
- Automotive systems, particularly those requiring low power and robust performance
Q & A
- What is the core architecture of the STM32L151CBU6D?
The STM32L151CBU6D is based on the ARM Cortex-M3 32-bit RISC core.
- What is the maximum operating frequency of the STM32L151CBU6D?
The maximum operating frequency is up to 32 MHz.
- What are the power supply voltage ranges for the STM32L151CBU6D?
The device operates from 1.8 to 3.6 V (down to 1.65 V at power down).
- What are the key power-saving modes available on the STM32L151CBU6D?
The device supports Standby, Stop, and Low-power run modes.
- What types of communication interfaces does the STM32L151CBU6D support?
The device supports USB 2.0, USARTs, SPIs, and I2Cs.
- How many capacitive sensing channels does the STM32L151CBU6D offer?
The device offers up to 20 capacitive sensing channels.
- What is the temperature range for the STM32L151CBU6D?
The operating temperature range is -40°C to +85°C (extended to 105°C in low power dissipation state).
- Does the STM32L151CBU6D have an integrated LCD controller?
No, the STM32L151CBU6D does not have an integrated LCD controller.
- What development tools are supported by the STM32L151CBU6D?
The device supports serial wire debug, JTAG, and trace.
- How many I/Os does the STM32L151CBU6D have?
The device has up to 83 fast I/Os (73 I/Os 5V tolerant).
- What is the typical current consumption in Standby mode for the STM32L151CBU6D?
The typical current consumption in Standby mode is 0.3 µA (with 3 wakeup pins).
