Overview
The STM32L151VBT6TR is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L1 series. It integrates the high-performance ARM® Cortex®-M3 32-bit RISC core, operating at a frequency of 32 MHz (33.3 DMIPS). This MCU is designed for low-power applications, featuring a comprehensive set of power-saving modes and a wide range of peripherals and interfaces.
The device includes high-speed embedded memories such as up to 128 Kbytes of Flash memory with ECC, up to 16 Kbytes of RAM, and up to 4 Kbytes of true EEPROM with ECC. It also features a real-time clock, backup registers, and an extensive set of analog and digital peripherals.
Key Specifications
| Parameter | Specification |
|---|---|
| Core Processor | ARM® Cortex®-M3 32-bit RISC core |
| Operating Frequency | Up to 32 MHz (33.3 DMIPS) |
| Flash Memory | Up to 128 Kbytes with ECC |
| RAM | Up to 16 Kbytes |
| EEPROM | Up to 4 Kbytes with ECC |
| Backup Register | 80-byte |
| Power Supply | 1.8 to 3.6 V (down to 1.65 V at power down) |
| Operating Temperature | -40 to +85 °C (extended to 105°C in low power dissipation state) |
| Package | 100-LQFP |
| Analog Peripherals | 12-bit ADC (1 Msps, up to 24 channels), 12-bit DAC (2 channels with output buffers), 2 ultra-low-power comparators |
| Timers | 6 general-purpose 16-bit timers, 2 basic timers, 2 watchdog timers |
| Communication Interfaces | USB 2.0, 3 USARTs, 2 SPIs, 2 I2Cs |
| Capacitive Sensing Channels | Up to 20 channels supporting touchkey, linear, and rotary touch sensors |
| Clock Sources | 1 to 24 MHz crystal oscillator, 32 kHz oscillator for RTC, High Speed Internal 16 MHz RC, Internal low-power 37 kHz RC, Internal multispeed low-power 65 kHz to 4.2 MHz, PLL for CPU clock and USB (48 MHz) |
Key Features
- Ultra-low-power platform with multiple power-saving modes.
- High-performance ARM® Cortex®-M3 32-bit RISC core operating at 32 MHz.
- High-speed embedded memories: up to 128 Kbytes Flash, up to 16 Kbytes RAM, and up to 4 Kbytes EEPROM.
- Rich analog peripherals including 12-bit ADC, 12-bit DAC, and ultra-low-power comparators.
- Extensive range of communication interfaces: USB 2.0, USARTs, SPIs, and I2Cs.
- 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 some models) with built-in LCD voltage generator.
- DMA controller with 7 channels and CRC calculation unit.
- Up to 83 fast I/Os (73 I/Os 5V tolerant) with 16 external interrupt vectors.
Applications
- Low-power consumer electronics.
- Industrial automation and control systems.
- Medical devices requiring low power consumption.
- Smart home and IoT devices.
- Automotive systems, especially those requiring low power and high reliability.
- Wearable devices and fitness trackers.
Q & A
- What is the core processor of the STM32L151VBT6TR?
The core processor is the ARM® Cortex®-M3 32-bit RISC core.
- What is the maximum operating frequency of the STM32L151VBT6TR?
The maximum operating frequency is 32 MHz.
- How much Flash memory does the STM32L151VBT6TR have?
The device has up to 128 Kbytes of Flash memory with ECC.
- What are the power supply requirements for the STM32L151VBT6TR?
The device operates from a 1.8 to 3.6 V power supply (down to 1.65 V at power down).
- What is the operating temperature range of the STM32L151VBT6TR?
The operating temperature range is -40 to +85 °C (extended to 105°C in low power dissipation state).
- What types of communication interfaces are available on the STM32L151VBT6TR?
The device features USB 2.0, 3 USARTs, 2 SPIs, and 2 I2Cs.
- Does the STM32L151VBT6TR support touch sensing functionality?
Yes, it supports up to 20 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- What is the package type of the STM32L151VBT6TR?
The package type is 100-LQFP.
- Does the STM32L151VBT6TR have an integrated LCD controller?
Yes, but this feature is not available in all models of the STM32L151 series.
- What are some of the typical applications for the STM32L151VBT6TR?
Typical applications include low-power consumer electronics, industrial automation, medical devices, smart home devices, and automotive systems.
