STMicroelectronics STM32L021F4U6TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.69 | $2.69 |
| 15+ | $1.77 | $26.55 |
| 25+ | $1.73 | $43.25 |
| 50+ | $1.63 | $81.50 |
| 100+ | $1.44 | $144.00 |
| N+ | $0.29 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM32L0 |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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 | 16 |
| 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 7x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 20-UFQFPN (3x3) |
| Package / Case | 20-UFQFN |
| ROHS |
The STM32L021F4U6TR from STMicroelectronics is an ultra-low-power 32-bit MCU based on the ARM Cortex-M0+ core. It runs at 32MHz and offers 16KB Flash and 2KB RAM. With a supply range of 1.65V to 3.6V and a compact 20-UFQFN package, it is designed for battery-powered and space-constrained applications.
- Ultra-Low Power: 1.65V operation extends battery life in portable devices.
- ARM Cortex-M0+ Core: Efficient 32-bit processing at 32MHz.
- Compact UFQFN Package: Ideal for miniaturized designs.
- Integrated DMA: Improves peripheral data throughput without CPU overhead.
Wearable Fitness Trackers
The 1.65V minimum supply and 32MHz Cortex-M0+ core allow for ultra-low-power operation while processing accelerometer data in real time.
Smart Sensors
With 16KB Flash and DMA, it can buffer data from multiple I2C/SPI sensors and wake the main core only when needed, saving power.
Portable Medical Devices
Its small UFQFN package and 85°C rating make it suitable for compact glucose meters or digital thermometers.
Industrial Actuators
PWM and WDT features enable reliable control of small valves or pumps in factory automation.
Consumer Electronics
Ideal for TV remote controls or smart home buttons, where low standby current and quick wake-up are critical.
Battery Management
Can monitor cell voltages and control balancing circuits in small Li-ion packs, using its analog peripherals and low-power modes.
- Q: What is the core of the STM32L021F4U6TR?
- A: It uses an ARM Cortex-M0+ core running at 32MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.65V to 3.6V.
- Q: How much Flash memory is available?
- A: It has 16KB of Flash memory.
- Q: What package does it come in?
- A: It is available in a 20-pin UFQFN package.
- Q: Does it support DMA?
- A: Yes, it includes a DMA controller.
- Q: What is the core of the STM32L021F4U6TR?
- A: It uses an ARM Cortex-M0+ core running at 32MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.65V to 3.6V.
- Q: How much Flash memory is available?
- A: It has 16KB of Flash memory.
- Q: What package does it come in?
- A: It is available in a 20-pin UFQFN package.
- Q: Does it support DMA?
- A: Yes, it includes a DMA controller.

STM32L021F4U6TR.pdf