STMicroelectronics STM32L051K8U3TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.80 | $6.80 |
| 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 | Tape & Reel (TR) | NULL |
| Core Processor | ARM® Cortex®-M0+ |
| Core Size | 32-Bit |
| 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 SAR |
| 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 STM32L051K8U3TR is an ultra-low-power 32-bit MCU based on the ARM Cortex-M0+ core. Running at 32MHz with 64KB flash and 8KB SRAM, it operates from 1.65V to 3.6V and supports -40°C to 125°C. The 32-UFQFN package with exposed pad is ideal for compact, thermally efficient designs.
- Ultra-low-power architecture: Extends battery life in portable devices.
- Wide temperature range (-40°C to 125°C): Suitable for automotive and industrial use.
- Compact 32-UFQFN package: Saves board space with exposed pad for heat dissipation.
- Integrated safety features: Brown-out reset, POR, and WDT ensure reliable operation.
- DMA controller: Enhances peripheral data throughput without CPU intervention.
IoT Edge Devices
The Cortex-M0+ core with 32MHz speed and 64KB flash handles sensor fusion and wireless protocol stacks, while the 1.65V-3.6V range suits coin-cell operation.
Industrial Process Transmitters
The -40°C to 125°C rating and brown-out detection ensure reliable 4-20mA loop-powered operation in harsh plants.
Medical Wearables
Ultra-low-power modes extend battery life for continuous health monitoring, and the compact 32-UFQFN package fits small PCBs.
Smart Building Sensors
DMA and PWM features enable efficient occupancy detection and lighting control, with POR protecting against power glitches.
Automotive Body Modules
With 125°C capability, it suits under-hood sensors or seat control units requiring high-temperature tolerance.
Portable Instrumentation
The 8KB SRAM supports real-time data buffering for handheld multimeters or data loggers.
- Q: What is the core architecture of the STM32L051K8U3TR?
- A: It uses the ARM Cortex-M0+ 32-bit core running at up to 32MHz.
- Q: What is the operating temperature range?
- A: It operates from -40°C to 125°C, suitable for extreme environments.
- Q: How much flash and RAM does it have?
- A: It provides 64KB of flash and 8KB of SRAM.
- Q: What package is available?
- A: It comes in a 32-UFQFN package with exposed pad for thermal management.
- Q: Does it support low-power modes?
- A: Yes, it features multiple low-power modes including sleep, stop, and standby.
- Q: What is the core architecture of the STM32L051K8U3TR?
- A: It uses the ARM Cortex-M0+ 32-bit core running at up to 32MHz.
- Q: What is the operating temperature range?
- A: It operates from -40°C to 125°C, suitable for extreme environments.
- Q: How much flash and RAM does it have?
- A: It provides 64KB of flash and 8KB of SRAM.
- Q: What package is available?
- A: It comes in a 32-UFQFN package with exposed pad for thermal management.
- Q: Does it support low-power modes?
- A: Yes, it features multiple low-power modes including sleep, stop, and standby.

STM32L051K8U3TR.pdf