Overview
The STM32L151RBT6A is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L series. It integrates the high-performance ARM® Cortex®-M3 32-bit RISC core, operating at a frequency of up to 32 MHz (33.3 DMIPS). This device is designed for low-power applications, featuring a comprehensive set of power-saving modes and a wide range of peripherals and interfaces. The STM32L151RBT6A is particularly suited for applications requiring high performance, low power consumption, and advanced connectivity options.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | ARM® Cortex®-M3 32-bit CPU |
| Frequency | Up to 32 MHz (33.3 DMIPS) |
| Flash Memory | Up to 128 Kbytes with ECC |
| RAM | Up to 32 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 to +85 °C, extended to +105°C in low power dissipation state |
| ADC | 12-bit, up to 24 channels |
| DAC | 12-bit, 2 channels with output buffers |
| Timers | 6 general-purpose 16-bit timers, 2 basic timers |
| Communication Interfaces | Up to 2 I2Cs, 2 SPIs, 3 USARTs, 1 USB 2.0 |
| Capacitive Sensing Channels | Up to 20 channels |
| Package | LQFP 64 10x10x1.4 mm |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, Low-power Run)
- High-speed embedded memories: up to 128 Kbytes Flash, up to 32 Kbytes RAM, and up to 4 Kbytes EEPROM
- Rich analog peripherals: 12-bit ADC, 12-bit DACs, and ultra-low-power comparators
- Advanced communication interfaces: USB 2.0, USART, SPI, I2C
- 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-A devices)
- High-speed internal oscillators and PLL for CPU clock and USB
- Development support: serial wire debug, JTAG, and trace
Applications
- Low-power IoT devices
- Portable and battery-powered devices
- Industrial control and automation
- Medical devices requiring low power consumption
- Consumer electronics with touch sensing capabilities
- Smart home and building automation systems
Q & A
- What is the core architecture of the STM32L151RBT6A?
The STM32L151RBT6A features an ARM® Cortex®-M3 32-bit RISC core.
- What is the maximum operating frequency of the STM32L151RBT6A?
The maximum operating frequency is up to 32 MHz (33.3 DMIPS).
- What are the power supply voltage ranges for the STM32L151RBT6A?
The device operates from 1.8 to 3.6 V (down to 1.65 V at power down).
- What types of memory are available on the STM32L151RBT6A?
The device includes up to 128 Kbytes Flash memory, up to 32 Kbytes RAM, and up to 4 Kbytes EEPROM.
- What analog peripherals are available on the STM32L151RBT6A?
The device features a 12-bit ADC, 12-bit DACs, and ultra-low-power comparators.
- What communication interfaces are supported by the STM32L151RBT6A?
The device supports USB 2.0, USART, SPI, and I2C interfaces.
- Does the STM32L151RBT6A support touch sensing?
Yes, it supports up to 20 capacitive sensing channels for touch sensing functionality.
- What is the temperature range for the STM32L151RBT6A?
The device operates in the -40 to +85 °C temperature range, extended to +105°C in low power dissipation state.
- What development tools are supported for the STM32L151RBT6A?
The device supports serial wire debug, JTAG, and trace for development.
- What are some typical applications for the STM32L151RBT6A?
Typical applications include low-power IoT devices, portable and battery-powered devices, industrial control, medical devices, and consumer electronics.
- Does the STM32L151RBT6A have an integrated LCD controller?
No, the STM32L151x6/8/B-A devices do not have an integrated LCD controller.
