Overview
The STM32L151VEY6TR is an ultra-low-power microcontroller from STMicroelectronics, based on the Arm Cortex-M3 32-bit RISC core. It operates at a frequency of up to 32 MHz and features a comprehensive set of peripherals and interfaces. This MCU is designed for low-power applications, offering various power-saving modes and a wide range of analog and digital peripherals. The device is suitable for applications requiring high performance, low power consumption, and advanced connectivity options such as USB, SPI, I2C, and USART.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm Cortex-M3 32-bit CPU |
| Frequency | Up to 32 MHz |
| Flash Memory | 512 Kbytes with ECC (2 banks of 256 Kbytes enabling RWW capability) |
| RAM | 80 Kbytes |
| EEPROM | 16 Kbytes with ECC |
| Backup Register | 128-byte |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40 °C to 105 °C |
| ADC | 12-bit, up to 40 channels |
| DAC | 12-bit, 2 channels with output buffers |
| Timers | 1x 32-bit, 6x 16-bit, 2x basic timers |
| Communication Interfaces | USB 2.0, up to 3 SPIs, up to 2 I2Cs, up to 3 USARTs, 2 UARTs, 2 I2S |
| Capacitive Sensing Channels | Up to 34 channels |
| Package | WLCSP 104 (4.1x5.1x0.6 mm) |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, Low-power run, Low-power sleep)
- Low-power, ultrasafe BOR (brownout reset) with 5 selectable thresholds
- Ultra-low-power POR/PDR and programmable voltage detector (PVD)
- Clock sources: 1 to 24 MHz crystal oscillator, 32 kHz oscillator for RTC, internal 16 MHz oscillator, and internal low-power oscillators
- PLL for CPU clock and USB (48 MHz)
- Pre-programmed bootloader and support for USB and USART
- Up to 116 fast I/Os (102 I/Os 5V tolerant), all mappable on 16 external interrupt vectors
- Integrated op-amps (2), ultra-low-power comparators (2), and LCD driver (except STM32L151xE devices)
- Real-time clock and backup registers
- CRC calculation unit and 96-bit unique ID
Applications
The STM32L151VEY6TR is suitable for a wide range of applications that require low power consumption and high performance. These include:
- Industrial automation and control systems
- Medical devices requiring low power and high reliability
- Consumer electronics such as smart home devices and wearables
- Automotive systems, especially those requiring low power in standby modes
- IoT devices and sensor networks
Q & A
- What is the core architecture of the STM32L151VEY6TR?
The core architecture is based on the Arm Cortex-M3 32-bit RISC core.
- What is the maximum operating frequency of the STM32L151VEY6TR?
The maximum operating frequency is up to 32 MHz.
- What are the power supply voltage ranges for the STM32L151VEY6TR?
The power supply voltage ranges from 1.65 V to 3.6 V.
- What are the key power-saving modes available in the STM32L151VEY6TR?
The key power-saving modes include Standby, Stop, Low-power run, and Low-power sleep modes.
- What types of communication interfaces are supported by the STM32L151VEY6TR?
The device supports USB 2.0, SPI, I2C, USART, UART, and I2S interfaces.
- How many capacitive sensing channels does the STM32L151VEY6TR support?
The device supports up to 34 capacitive sensing channels.
- What is the package type of the STM32L151VEY6TR?
The package type is WLCSP 104 (4.1x5.1x0.6 mm).
- Does the STM32L151VEY6TR have integrated analog peripherals?
Yes, it includes operational amplifiers, ADC, DAC, and ultra-low-power comparators.
- What is the temperature range for the STM32L151VEY6TR?
The temperature range is from -40 °C to 105 °C.
- Does the STM32L151VEY6TR support real-time clock functionality?
Yes, it includes a real-time clock with calibration.
- What are the memory specifications of the STM32L151VEY6TR?
The device has 512 Kbytes of Flash memory, 80 Kbytes of RAM, and 16 Kbytes of true EEPROM.
