Overview
The STM32L151CBT6D is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L1 series. It features the high-performance ARM Cortex-M3 32-bit RISC core, operating at a frequency of 32 MHz (33.3 DMIPS). This MCU is designed for low-power applications, offering a comprehensive set of power-saving modes and a wide range of peripherals and interfaces.
The device is particularly suited for applications requiring high performance, low power consumption, and advanced connectivity options such as USB, I2C, SPI, and USART. It also includes features like touch sensing, real-time clock, and backup registers, making it versatile for various embedded system designs.
Key Specifications
| Parameter | Specification |
|---|---|
| Core Processor | ARM Cortex-M3 32-bit RISC core |
| 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 | 48-pin LQFP |
| Communication Interfaces | USB, up to two I2Cs, two SPIs, three USARTs |
| Analog Peripherals | 12-bit ADC, 2 DACs, 2 ultra-low-power comparators |
| Timers | Six general-purpose 16-bit timers, two basic timers |
| I/Os | Up to 83 fast I/Os (73 I/Os 5V tolerant) |
Key Features
- Ultra-low-power consumption with multiple power-saving modes
- High-performance ARM Cortex-M3 32-bit RISC core
- Advanced communication interfaces including USB, I2C, SPI, and USART
- Rich analog peripherals: 12-bit ADC, 2 DACs, and 2 ultra-low-power comparators
- Six general-purpose 16-bit timers and two basic timers
- Up to 20 capacitive sensing channels for touch sensing functionality
- Real-time clock with sub-second counting and backup registers
- Integrated LCD controller (except for STM32L151x6/8/B devices)
- Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
- Programmable voltage detector (PVD) and various clock sources
- Pre-programmed bootloader and development support with serial wire debug, JTAG, and trace
Applications
- Low-power IoT devices and smart home applications
- Portable and battery-powered devices
- Industrial automation and control systems
- Medical devices requiring low power consumption
- Automotive systems, especially those needing high reliability and low power
- Consumer electronics such as wearables and fitness trackers
Q & A
- What is the core processor of the STM32L151CBT6D?
The core processor is the ARM Cortex-M3 32-bit RISC core.
- What is the maximum operating frequency of the STM32L151CBT6D?
The maximum operating frequency is up to 32 MHz (33.3 DMIPS).
- How much Flash memory does the STM32L151CBT6D have?
The device has up to 128 Kbytes of Flash memory with ECC.
- What are the power supply voltage ranges for the STM32L151CBT6D?
The power supply voltage ranges from 1.8 V to 3.6 V (down to 1.65 V at power down).
- What is the operating temperature range of the STM32L151CBT6D?
The operating temperature range is -40°C to +85°C (extended to +105°C in low power dissipation state).
- What communication interfaces are available on the STM32L151CBT6D?
The device includes USB, up to two I2Cs, two SPIs, and three USARTs.
- Does the STM32L151CBT6D support touch sensing?
Yes, it supports up to 20 capacitive sensing channels for touch sensing functionality.
- What kind of timers are available on the STM32L151CBT6D?
The device includes six general-purpose 16-bit timers and two basic timers.
- Is the STM32L151CBT6D suitable for low-power applications?
Yes, it is designed for ultra-low-power consumption with multiple power-saving modes.
- What development tools are supported by the STM32L151CBT6D?
The device supports serial wire debug, JTAG, and trace, along with a pre-programmed bootloader.
- What is the package type of the STM32L151CBT6D?
The package type is a 48-pin LQFP.
