Overview
The STM32L021K4T6 is an ultra-low-power 32-bit microcontroller from STMicroelectronics, part of the STM32L0 series. 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 applications requiring low power consumption and high performance. It includes 16 KB of flash memory, 2 KB of SRAM, and 512 bytes of data EEPROM. The device also supports various communication interfaces such as USART, SPI, and I2C, making it versatile for a range of applications.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Part Number | STM32L021K4T6 |
| Core | ARM Cortex-M0+ |
| Bit Width | 32 bit |
| Maximum Clock Frequency | 32 MHz |
| Flash Memory | 16 KB |
| SRAM | 2 KB |
| Data EEPROM | 512 bytes |
| Number of I/Os | 26 |
| Package Type | LQFP32 |
| Temperature Range | -40°C to 85°C |
| ADC Resolution | 12 bit |
| Communication Interfaces | USART, SPI, I2C, LPUART |
Key Features
- Ultra-low-power design with high-performance ARM Cortex-M0+ core.
- 16 KB of flash memory, 2 KB of SRAM, and 512 bytes of data EEPROM.
- Maximum CPU frequency of 32 MHz.
- Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds.
- Ultralow power POR/PDR, programmable voltage detector (PVD).
- High speed internal 16 MHz factory-trimmed RC (+/- 1%).
- PLL for CPU clock, pre-programmed bootloader.
- Support for USART, SPI, I2C, and LPUART communication interfaces.
- Development support with serial wire debug.
- Sector protection against R/W operation.
Applications
The STM32L021K4T6 is suitable for a variety of applications that require low power consumption and high performance, such as:
- IoT devices and smart home appliances.
- Industrial automation and control systems.
- Medical devices and healthcare equipment.
- Consumer electronics and wearable devices.
- Automotive systems and telematics.
Q & A
- What is the core architecture of the STM32L021K4T6?
The STM32L021K4T6 features the ARM Cortex-M0+ 32-bit RISC core.
- What is the maximum clock frequency of the STM32L021K4T6?
The maximum clock frequency is 32 MHz.
- How much flash memory does the STM32L021K4T6 have?
The device has 16 KB of flash memory.
- What are the communication interfaces supported by the STM32L021K4T6?
The device supports USART, SPI, I2C, and LPUART communication interfaces.
- What is the temperature range of the STM32L021K4T6?
The temperature range is from -40°C to 85°C.
- Does the STM32L021K4T6 have any power-saving features?
Yes, it features ultra-low-power design, ultralow power POR/PDR, and programmable voltage detector (PVD).
- What is the package type of the STM32L021K4T6?
The package type is LQFP32.
- How many I/Os does the STM32L021K4T6 have?
The device has 26 I/Os.
- Is the STM32L021K4T6 suitable for industrial applications?
Yes, it is suitable for industrial automation and control systems due to its robust features and temperature range.
- Does the STM32L021K4T6 support serial wire debug?
Yes, it supports serial wire debug for development purposes.
