STMicroelectronics STM32L051K8U3
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.81 | $6.81 |
| 15+ | $1.56 | $23.40 |
| 25+ | $1.53 | $38.25 |
| 50+ | $1.45 | $72.50 |
| 100+ | $1.28 | $128.00 |
| N+ | $0.26 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM32L0 |
| Packaging | Tray | NULL |
| 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 | 27 |
| Program Memory Size | 64KB (64K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | 2K x 8 |
| RAM Size | 8K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.65V ~ 3.6V |
| Data Converters | A/D 10x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 32-UFQFPN (5x5) |
| Package / Case | 32-UFQFN Exposed Pad |
| ROHS |  |
The STMicroelectronics STM32L051K8U3 is an ultra-low-power 32-bit MCU based on the ARM Cortex-M0+ core. It runs at 32MHz with 64KB flash and 8KB SRAM, operating from 1.65V to 3.6V. The 32-UFQFN package with exposed pad supports compact, high-temperature applications.
- Ultra-low-power design: Ideal for energy-harvesting and battery applications.
- High-temperature rating (125°C): Suitable for automotive and industrial environments.
- Compact UFQFN-32 package: Minimizes PCB footprint.
- Rich analog and digital peripherals: Includes DMA, PWM, and multiple timers.
- Robust safety features: Brown-out reset, POR, and WDT for reliable operation.
Smart Home Controllers
The 32MHz Cortex-M0+ with 64KB flash runs Zigbee or Thread stacks, while low-power modes enable battery-powered wall switches.
Industrial Data Loggers
DMA and 8KB SRAM buffer sensor data efficiently, and the wide temperature range supports outdoor installations.
Medical Monitoring Devices
Ultra-low-power operation extends wearable battery life, and the compact UFQFN package fits into small enclosures.
Automotive Sensor Interfaces
With 125°C capability, it processes signals from engine bay sensors, with brown-out detection preventing data corruption.
Portable Test Equipment
The 1.65V minimum voltage allows operation from a single alkaline cell, simplifying power supply design.
Building Security Panels
PWM outputs drive buzzer and LED indicators, while WDT ensures the system recovers from faults.
- Q: What is the difference between STM32L051K8U3 and the TR version?
- A: The TR suffix indicates tape-and-reel packaging; the chip itself is identical.
- Q: What is the maximum clock speed?
- A: The ARM Cortex-M0+ core runs at up to 32MHz.
- Q: What is the operating voltage range?
- A: It operates from 1.65V to 3.6V.
- Q: How much flash and RAM does it have?
- A: It has 64KB flash and 8KB SRAM.
- Q: What is the temperature range?
- A: It is rated for -40°C to 125°C.
STM32L051K8U3.pdf
- Q: What is the difference between STM32L051K8U3 and the TR version?
- A: The TR suffix indicates tape-and-reel packaging; the chip itself is identical.
- Q: What is the maximum clock speed?
- A: The ARM Cortex-M0+ core runs at up to 32MHz.
- Q: What is the operating voltage range?
- A: It operates from 1.65V to 3.6V.
- Q: How much flash and RAM does it have?
- A: It has 64KB flash and 8KB SRAM.
- Q: What is the temperature range?
- A: It is rated for -40°C to 125°C.
