STMicroelectronics STM32L021K4T6
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.54 | $3.54 |
| 15+ | $2.33 | $34.95 |
| 25+ | $2.28 | $57.00 |
| 50+ | $2.15 | $107.50 |
| 100+ | $1.90 | $190.00 |
| N+ | $0.38 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM32L0 |
| Packaging | Tray | |
| Core Processor | ARM® Cortex®-M0+ |
| Core Size | 32-Bit Single-Core |
| Speed | 32MHz |
| Connectivity | I2C, IrDA, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Number of I/O | 28 |
| Program Memory Size | 16KB (16K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | 512 x 8 |
| RAM Size | 2K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.65V ~ 3.6V |
| Data Converters | A/D 10x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 32-LQFP (7x7) |
| Package / Case | 32-LQFP |
| ROHS |
The STM32L021K4T6 from STMicroelectronics is an ultra-low-power 32-bit MCU based on the ARM Cortex-M0+ core. It operates at up to 32MHz with 16KB flash and 2KB SRAM, supporting a wide voltage range of 1.65V to 3.6V. This device integrates essential peripherals including DMA, PWM, and watchdog timers, making it a compact and efficient solution for cost-sensitive embedded applications.
- Ultra-low power consumption: The 1.65V operation and multiple low-power modes extend battery life in portable devices.
- Compact 32-LQFP package: Saves PCB space while providing enough I/O for control applications.
- Reliable operation: Brown-out reset and watchdog timer ensure system stability in noisy environments.
- Efficient processing: The 32MHz Cortex-M0+ core delivers adequate performance for real-time tasks with minimal energy draw.
Battery-Powered IoT Sensors
The 1.65V minimum supply voltage allows direct operation from a single alkaline cell, extending battery life in wireless sensor nodes.
Portable Medical Devices
With a 32MHz Cortex-M0+ core and 16KB flash, it handles real-time vital sign monitoring algorithms while maintaining low power consumption.
Industrial Control Panels
The integrated DMA and PWM peripherals enable precise motor control and data logging without CPU intervention, improving system efficiency.
Smart Home Automation
Its small 32-LQFP footprint and wide voltage range make it suitable for smart switches and thermostats that need reliable operation across varying power conditions.
Wearable Fitness Trackers
The low-power modes and brown-out detection ensure stable operation during activity monitoring, while the 2KB SRAM supports basic data buffering.
Automotive Accessory Modules
Operating from -40°C to 85°C, it can be used in car door modules or lighting controls where temperature extremes are common.
- Q: What is the operating voltage range of the STM32L021K4T6?
- A: It operates from 1.65V to 3.6V, ideal for battery-powered applications.
- Q: What is the maximum CPU speed?
- A: The ARM Cortex-M0+ core runs at up to 32MHz.
- Q: How much flash memory does it have?
- A: It provides 16KB of flash and 2KB of SRAM.
- Q: What package is available?
- A: It comes in a 32-pin LQFP package.
- Q: Does it include low-power features?
- A: Yes, it supports multiple low-power modes and includes POR, PWM, and WDT.
- Q: What is the operating voltage range of the STM32L021K4T6?
- A: It operates from 1.65V to 3.6V, ideal for battery-powered applications.
- Q: What is the maximum CPU speed?
- A: The ARM Cortex-M0+ core runs at up to 32MHz.
- Q: How much flash memory does it have?
- A: It provides 16KB of flash and 2KB of SRAM.
- Q: What package is available?
- A: It comes in a 32-pin LQFP package.
- Q: Does it include low-power features?
- A: Yes, it supports multiple low-power modes and includes POR, PWM, and WDT.

STM32L021K4T6.pdf