Overview
The STM32L081CBT6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L081xx family. It features the high-performance Arm Cortex-M0+ 32-bit RISC core, operating at a maximum frequency of 32 MHz. This microcontroller is designed for high power efficiency and includes a memory protection unit (MPU), high-speed embedded memories, and an extensive range of enhanced I/Os and peripherals. The device operates from a 1.65 V to 3.6 V power supply and is available in the -40 to +125 °C temperature range, making it suitable for a wide range of low-power applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm 32-bit Cortex-M0+ with MPU |
| Maximum Clock Frequency | 32 MHz |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40 to +125 °C |
| Flash Memory | Up to 192 Kbytes with ECC |
| RAM | 20 Kbytes |
| Data EEPROM | 6 Kbytes with ECC |
| Backup Register | 20 bytes |
| Number of I/Os | Up to 40 fast I/Os (31 I/Os 5V tolerant) |
| ADC Resolution | 12-bit, up to 16 channels |
| Timers | 11 timers including 4x 16-bit timers, 1x 16-bit ultra-low-power timer, 1x RTC, 2x watchdogs |
| Communication Interfaces | Up to 3x I2C, 2x SPI, 4x USART, 1x low-power UART |
| Package | LQFP 48 (7x7x1.4 mm) |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, etc.)
- High-performance Arm Cortex-M0+ core with MPU
- High-speed embedded memories: up to 192 Kbytes Flash, 20 Kbytes RAM, 6 Kbytes data EEPROM
- Extensive range of enhanced I/Os and peripherals
- 12-bit ADC with hardware oversampling, up to 16 channels
- Two ultra-low-power comparators with window mode and wake-up capability
- Several timers, including low-power timer (LPTIM), RTC, and SysTick
- Standard and advanced communication interfaces: I2C, SPI, USART, low-power UART
- Hardware Encryption Engine AES 128-bit
- Real-time clock and backup registers
- Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
Applications
The STM32L081CBT6 is suitable for a variety of low-power applications, including:
- IoT devices and smart sensors
- Wearable electronics and health monitoring devices
- Industrial automation and control systems
- Consumer electronics requiring low power consumption
- Automotive systems, especially those requiring high reliability and low power
Q & A
- What is the core architecture of the STM32L081CBT6?
The STM32L081CBT6 features the Arm 32-bit Cortex-M0+ core with a memory protection unit (MPU).
- What is the maximum clock frequency of the STM32L081CBT6?
The maximum clock frequency is 32 MHz.
- What is the power supply range for the STM32L081CBT6?
The device operates from a 1.65 V to 3.6 V power supply.
- What is the temperature range for the STM32L081CBT6?
The device operates in the -40 to +125 °C temperature range.
- How much Flash memory does the STM32L081CBT6 have?
The STM32L081CBT6 has up to 192 Kbytes of Flash memory with ECC.
- What types of communication interfaces does the STM32L081CBT6 support?
The device supports up to three I2C, two SPI, four USART, and one low-power UART.
- Does the STM32L081CBT6 have any power-saving modes?
Yes, it includes multiple power-saving modes such as Standby, Stop, and others to achieve ultra-low power consumption.
- What is the package type of the STM32L081CBT6?
The device is available in an LQFP 48 (7x7x1.4 mm) package.
- Does the STM32L081CBT6 support hardware encryption?
Yes, it features a hardware encryption engine with AES 128-bit.[
- What types of timers are available on the STM32L081CBT6?
The device includes several timers, including 16-bit timers, a low-power timer (LPTIM), an RTC, and SysTick.[
