Overview
The STM32L151C6U6 is an ultra-low-power microcontroller from STMicroelectronics, based on the ARM® Cortex®-M3 32-bit RISC core. This 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 designed to provide high performance while minimizing power consumption, making it ideal for applications requiring low energy usage.
The STM32L151C6U6 includes advanced communication interfaces such as USB, USARTs, SPIs, and I2Cs, along with rich analog peripherals like a 12-bit ADC, 12-bit DACs, and ultra-low-power comparators. The device also supports touch sensing functionality with up to 20 capacitive sensing channels and includes a real-time clock and backup registers.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | ARM® Cortex®-M3 32-bit CPU |
| 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 |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40°C to 85°C/105°C |
| ADC | 12-bit, 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 |
| Communication Interfaces | USB 2.0, 3x USARTs, 2x SPIs, 2x I2Cs |
| Capacitive Sensing Channels | Up to 20 channels |
| Package | UFQFPN 48 7x7x0.55 mm |
Key Features
- Ultra-low-power platform with various power-saving modes (Standby, Stop, Low-power run)
- High-performance ARM® Cortex®-M3 32-bit CPU with up to 32 MHz frequency
- Memory protection unit (MPU) and reset and supply management
- Rich analog peripherals including 12-bit ADC, 12-bit DACs, and ultra-low-power comparators
- Advanced communication interfaces: USB 2.0, USARTs, SPIs, I2Cs
- Up to 20 capacitive sensing channels for touch sensing functionality
- Real-time clock and backup registers
- Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
- Internal clock sources including crystal oscillators and internal RC oscillators
- Pre-programmed bootloader and development support with serial wire debug, JTAG, and trace
Applications
The STM32L151C6U6 is suitable for a wide range of applications that require low power consumption and high performance. These include:
- IoT devices and smart home appliances
- Portable and battery-powered devices
- Industrial automation and control systems
- Medical devices and healthcare equipment
- Automotive systems and telematics
- Consumer electronics and wearables
Q & A
- What is the core architecture of the STM32L151C6U6?
The STM32L151C6U6 is based on the ARM® Cortex®-M3 32-bit RISC core.
- What is the maximum operating frequency of the STM32L151C6U6?
The maximum operating frequency is up to 32 MHz.
- What is the power supply range for the STM32L151C6U6?
The power supply range is from 1.65 V to 3.6 V.
- What types of communication interfaces does the STM32L151C6U6 support?
The device supports USB 2.0, USARTs, SPIs, and I2Cs.
- Does the STM32L151C6U6 have touch sensing capabilities?
Yes, it supports up to 20 capacitive sensing channels for touch sensing functionality.
- What are the power-saving modes available on the STM32L151C6U6?
The device features various power-saving modes including Standby, Stop, and Low-power run modes.
- What is the temperature range for the STM32L151C6U6?
The operating temperature range is -40°C to 85°C/105°C.
- Does the STM32L151C6U6 have a real-time clock?
Yes, it includes a real-time clock with sub-second counting and backup registers.
- What types of timers are available on the STM32L151C6U6?
The device features six 16-bit timers with up to 4 IC/OC/PWM channels and two 16-bit basic timers.
- Is the STM32L151C6U6 RoHS compliant?
Yes, the device is RoHS compliant.
