Overview
The STM32L151RBH6 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 includes high-speed embedded memories such as up to 128 Kbytes of Flash memory, up to 16 Kbytes of RAM, and up to 4 Kbytes of true EEPROM. It also features a memory protection unit (MPU) and an extensive range of enhanced I/Os and peripherals connected to two APB buses.
Key Specifications
| Parameter | Specification |
|---|---|
| Core Processor | ARM® Cortex®-M3 32-bit |
| Operating Frequency | Up to 32 MHz |
| Program Memory Size | Up to 128 Kbytes (Flash) |
| RAM Size | Up to 16 Kbytes |
| EEPROM Size | Up to 4 Kbytes |
| Supply Voltage | 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 | 64-TFBGA |
| Number of I/Os | 51 (High Current) |
| ADC | 12-bit, up to 24 channels |
| DAC | 2 channels, 12-bit |
| Timers | 6 general-purpose 16-bit timers, 2 basic timers |
| Communication Interfaces | USB 2.0, 3x USARTs, 2x SPIs, 2x I2Cs |
| Capacitive Sensing Channels | Up to 20 channels |
Key Features
- Ultra-low-power platform with various power-saving modes (Standby, Stop, Low-power run mode)
- High-performance ARM® Cortex®-M3 32-bit RISC core
- High-speed embedded memories: Flash, RAM, and EEPROM
- Memory protection unit (MPU)
- Rich analog peripherals: 12-bit ADC, 12-bit DACs, ultra-low-power comparators
- Extensive range of peripherals and interfaces: USB, USARTs, SPIs, I2Cs
- 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 some models)
- DMA controller with 7 channels
Applications
- Low-power consumer electronics
- Industrial control and automation
- Medical devices requiring low power consumption
- IoT devices and smart home applications
- Portable and battery-powered devices
- Automotive systems requiring low power and high performance
Q & A
- What is the core processor of the STM32L151RBH6?
The core processor is the ARM® Cortex®-M3 32-bit RISC core.
- What is the maximum operating frequency of the STM32L151RBH6?
The maximum operating frequency is up to 32 MHz.
- What is the range of supply voltage for the STM32L151RBH6?
The supply voltage range is from 1.8 V to 3.6 V (down to 1.65 V at power down).
- What types of communication interfaces are available on the STM32L151RBH6?
The device features USB 2.0, three USARTs, two SPIs, and two I2Cs.
- How many capacitive sensing channels does the STM32L151RBH6 support?
It supports up to 20 capacitive sensing channels.
- What is the operating temperature range of the STM32L151RBH6?
The operating temperature range is from -40°C to +85°C (extended to +105°C in low power dissipation state).
- What is the package type of the STM32L151RBH6?
The package type is 64-TFBGA.
- Does the STM32L151RBH6 have an integrated LCD controller?
Yes, it has an integrated LCD controller (except for some models), which includes a built-in LCD voltage generator.
- What are the power-saving modes available on the STM32L151RBH6?
The device offers various power-saving modes including Standby, Stop, and Low-power run mode.
- How many I/Os does the STM32L151RBH6 have?
The device has 51 high current I/Os.
