Overview
The STM32L151UCY6TR is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L series. It is based on the ARM Cortex-M3 32-bit RISC core, operating at a frequency of up to 32 MHz. This device is designed for applications requiring low power consumption and high performance. It features a comprehensive set of peripherals, including USB, USART, SPI, I2C, and I2S interfaces, along with advanced analog peripherals such as operational amplifiers, ADCs, DACs, and ultra-low-power comparators. The STM32L151UCY6TR is available in a WLCSP63 package and supports a wide temperature range from -40°C to 105°C, making it suitable for a variety of industrial and consumer applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | ARM Cortex-M3 32-bit CPU |
| Frequency | Up to 32 MHz |
| Memory | 256 Kbytes of Flash memory, 32 Kbytes of RAM, 8 Kbytes of true EEPROM |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40°C to 105°C |
| Package | WLCSP63 3.3x4.2x0.6 P 0.4 mm |
| ADC | 12-bit ADC up to 25 channels |
| DAC | 12-bit DAC 2 channels with output buffers |
| Timers | 1x 32-bit, 6x 16-bit with up to 4 IC/OC/PWM channels, 2x 16-bit basic timers |
| Communication Interfaces | 1x USB 2.0, 3x USARTs, up to 8x SPIs, 2x I2Cs |
| Capacitive Sensing Channels | Up to 23 channels |
| Low-Power Modes | Standby mode: 0.29µA (3 wakeup pins), Stop mode: 0.44µA (16 wakeup lines) |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, Low-power run)
- ARM Cortex-M3 32-bit CPU with up to 32 MHz frequency
- Memory protection unit and reset and supply management
- Low-power, ultrasafe BOR (brownout reset) with 5 selectable thresholds
- Rich analog peripherals including operational amplifiers, ADCs, DACs, and ultra-low-power comparators
- Comprehensive set of communication interfaces: USB 2.0, USARTs, SPIs, I2Cs, and I2S
- Up to 23 capacitive sensing channels for touch sensing functionality
- Real-time clock and backup registers
- High-speed internal RC oscillators and PLL for CPU clock and USB
- Pre-programmed bootloader and development support with serial wire debug, JTAG, and trace
Applications
The STM32L151UCY6TR is suitable for a wide range of applications that require low power consumption and high performance. These include:
- Industrial automation and control systems
- Consumer electronics such as smart home devices and wearables
- Medical devices requiring low power and high reliability
- Automotive systems, especially those needing robust temperature range support
- IOT devices and sensor networks
Q & A
- What is the core architecture of the STM32L151UCY6TR?
The STM32L151UCY6TR is based on the ARM Cortex-M3 32-bit RISC core.
- What is the maximum operating frequency of the STM32L151UCY6TR?
The maximum operating frequency is up to 32 MHz.
- What are the power supply voltage ranges for the STM32L151UCY6TR?
The device operates from a 1.65 V to 3.6 V power supply.
- What are the key low-power modes available on the STM32L151UCY6TR?
The device features Standby mode (0.29µA), Stop mode (0.44µA), and Low-power run mode (8.6µA).
- What types of communication interfaces are available on the STM32L151UCY6TR?
The device includes USB 2.0, USARTs, SPIs, I2Cs, and I2S interfaces.
- Does the STM32L151UCY6TR support touch sensing functionality?
Yes, it supports up to 23 capacitive sensing channels for touch sensing.
- What is the temperature range supported by the STM32L151UCY6TR?
The device operates in the temperature range of -40°C to 105°C.
- What types of timers are available on the STM32L151UCY6TR?
The device includes 1x 32-bit timer, 6x 16-bit timers with up to 4 IC/OC/PWM channels, and 2x 16-bit basic timers.
- Does the STM32L151UCY6TR have any built-in analog peripherals?
Yes, it includes operational amplifiers, ADCs, DACs, and ultra-low-power comparators.
- What development tools and support are available for the STM32L151UCY6TR?
The device supports serial wire debug, JTAG, trace, and has a pre-programmed bootloader.
- What is the package type of the STM32L151UCY6TR?
The device is available in a WLCSP63 3.3x4.2x0.6 P 0.4 mm package.
