Overview
The STM32L151RBT6D is an ultra-low-power microcontroller from STMicroelectronics, based on the ARM Cortex-M3 32-bit RISC core. This MCU is designed to offer high performance and low power consumption, making it ideal for a wide range of applications that require energy efficiency.
The device operates at a frequency of up to 32 MHz and features a memory protection unit (MPU), high-speed embedded memories, and an extensive range of enhanced I/Os and peripherals. It is part of the STM32L151x6/8/B-A and STM32L152x6/8/B-A series, which incorporate advanced communication interfaces and rich analog peripherals.
Key Specifications
| Specification | Value |
|---|---|
| Core | ARM Cortex-M3 32-bit RISC core |
| Maximum Clock Frequency | 32 MHz |
| Flash Memory | Up to 128 Kbytes with ECC |
| RAM | Up to 32 Kbytes |
| EEPROM | Up to 4 Kbytes with ECC |
| Backup Register | 80-byte |
| ADC Resolution | 12-bit, up to 24 channels |
| DAC Channels | 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 |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40°C to 105°C |
| Number of I/Os | 51 I/Os |
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 32 Kbytes RAM, and up to 4 Kbytes of true EEPROM with ECC
- Rich analog peripherals: 12-bit ADC, 2 DACs, and 2 ultra-low-power comparators
- Advanced communication interfaces: USB 2.0, 3 USARTs, 2 SPIs, and 2 I2Cs
- Up to 20 capacitive sensing channels for touch sensing functionality
- Real-time clock with sub-second counting and backup registers
- Multiple clock sources including crystal oscillators and internal RC oscillators
- Programmable voltage detector (PVD) and ultra-safe, low-power BOR (brownout reset)
Applications
- Low-power industrial control systems
- Smart energy management systems
- Medical devices requiring low power consumption
- Consumer electronics such as smart home devices and wearables
- Automotive systems, especially those requiring low power and high reliability
- IoT devices and wireless sensor networks
Q & A
- What is the core architecture of the STM32L151RBT6D?
The STM32L151RBT6D is based on the ARM Cortex-M3 32-bit RISC core.
- What is the maximum clock frequency of the STM32L151RBT6D?
The maximum clock frequency is 32 MHz.
- How much Flash memory does the STM32L151RBT6D have?
The device has up to 128 Kbytes of Flash memory with ECC.
- What are the power-saving modes available on the STM32L151RBT6D?
The device features multiple power-saving modes including Standby, Stop, and Low-power Run.
- What communication interfaces are available on the STM32L151RBT6D?
The device includes USB 2.0, 3 USARTs, 2 SPIs, and 2 I2Cs.
- What is the temperature range for the STM32L151RBT6D?
The device operates in a temperature range of -40°C to 105°C.
- How many capacitive sensing channels does the STM32L151RBT6D support?
The device supports up to 20 capacitive sensing channels.
- What is the power supply voltage range for the STM32L151RBT6D?
The device operates from a power supply voltage of 1.65 V to 3.6 V.
- Does the STM32L151RBT6D have a real-time clock?
Yes, the device includes a real-time clock with sub-second counting and backup registers.
- What types of timers are available on the STM32L151RBT6D?
The device features 6 general-purpose 16-bit timers, 2 basic timers, and 2 watchdog timers.
