Overview
The STM32L151VCH6TR is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L151xC and STM32L152xC series. It integrates the high-performance ARM® Cortex®-M3 32-bit RISC core, operating at a frequency of up to 32 MHz. 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 microcontroller includes high-speed embedded memories such as 256 Kbytes of Flash memory, 32 Kbytes of RAM, and 8 Kbytes of true EEPROM, all with ECC. It also features an LCD controller, rich analog peripherals, and multiple communication interfaces including USB, USART, SPI, and I2C.
The STM32L151VCH6TR operates from a 1.65 to 3.6 V power supply and is available in various packages, including UFBGA 100 7x7x0.6 P 0.5 mm. It supports a temperature range of -40°C to 105°C, making it suitable for a wide range of industrial and consumer applications.
Key Specifications
| Specification | Details |
|---|---|
| Core | ARM® Cortex®-M3 32-bit CPU |
| Operating Frequency | Up to 32 MHz |
| Flash Memory | 256 Kbytes with ECC |
| RAM | 32 Kbytes |
| EEPROM | 8 Kbytes with ECC |
| Backup Register | 128 bytes |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40°C to 105°C |
| Low-Power Modes | Standby: 0.29 µA (3 wakeup pins), Stop: 0.44 µA (16 wakeup lines) |
| Wakeup Time | < 8 µs |
| Analog Peripherals | 12-bit ADC (up to 25 channels), 12-bit DAC (2 channels), 2x operational amplifiers, 2x ultra-low-power comparators |
| Communication Interfaces | USB 2.0, 3x USART, 3x SPI, 2x I2C |
| Timers | 1x 32-bit, 6x 16-bit, 2x basic timers, 2x watchdog timers |
| Capacitive Sensing Channels | Up to 23 channels |
| I/Os | Up to 83 fast I/Os (70 I/Os 5V tolerant) |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, Low-power Run)
- High-performance ARM® Cortex®-M3 32-bit CPU with up to 32 MHz frequency
- High-speed embedded memories: 256 Kbytes Flash, 32 Kbytes RAM, 8 Kbytes EEPROM
- Rich analog peripherals: 12-bit ADC, 12-bit DAC, operational amplifiers, ultra-low-power comparators
- Extensive communication interfaces: USB 2.0, USART, SPI, I2C
- Multiple timers: 32-bit, 16-bit, basic timers, watchdog timers
- Up to 23 capacitive sensing channels for touch sensing functionality
- Real-time clock and backup registers
- Integrated LCD controller (except STM32L151xC devices)
- Development support: Serial wire debug, JTAG, and trace supported
Applications
- Industrial automation and control systems
- Consumer electronics requiring low power consumption
- Medical devices and healthcare equipment
- IoT devices and smart home applications
- Automotive systems and telematics
- Energy metering and smart grid solutions
Q & A
- What is the core architecture of the STM32L151VCH6TR?
The core architecture is based on the ARM® Cortex®-M3 32-bit RISC CPU.
- What is the operating frequency range of the STM32L151VCH6TR?
The operating frequency range is up to 32 MHz.
- What types of memory does the STM32L151VCH6TR have?
The device includes 256 Kbytes of Flash memory, 32 Kbytes of RAM, and 8 Kbytes of true EEPROM, all with ECC.
- What are the power supply and temperature ranges for the STM32L151VCH6TR?
The power supply range is 1.65 V to 3.6 V, and the temperature range is -40°C to 105°C.
- What are the low-power modes available on the STM32L151VCH6TR?
The device features Standby, Stop, and Low-power Run modes, with Standby mode consuming as low as 0.29 µA (3 wakeup pins) and Stop mode consuming 0.44 µA (16 wakeup lines).
- What analog peripherals are available on the STM32L151VCH6TR?
The device includes a 12-bit ADC, 12-bit DAC, two operational amplifiers, and two ultra-low-power comparators.
- What communication interfaces does the STM32L151VCH6TR support?
The device supports USB 2.0, three USARTs, three SPIs, and two I2Cs.
- How many timers does the STM32L151VCH6TR have?
The device includes one 32-bit timer, six 16-bit timers, two basic timers, and two watchdog timers.
- Does the STM32L151VCH6TR support capacitive sensing?
Yes, it supports up to 23 capacitive sensing channels.
- What development tools are supported by the STM32L151VCH6TR?
The device supports serial wire debug, JTAG, and trace.
