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STMicroelectronics STM32F051K8T6
- Part No.:
- STM32F051K8T6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
STM32F051K8T6.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:10,474
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Product details
Overview
STM32F051K8T6 from STMicroelectronics is a 32-bit ARM Cortex-M0 microcontroller with 64 KB Flash, 8 KB SRAM, 48 MHz max CPU frequency, 12-bit ADC (1.0 µs conversion), and single 12-bit DAC-designed for cost-sensitive industrial control and sensor interface applications requiring low-power operation and integrated analog peripherals.
For engineers reviewing the STM32F051K8T6 datasheet, STM32F051K8T6 pinout, STM32F051K8T6 application, or STM32F051K8T6 equivalent, key selection criteria include its 32-pin LQFP package, 5 V-tolerant I/Os (up to 36), dual USARTs with IrDA/LIN support, 11 timers including advanced-control TIM1 with deadtime generation, and RTC with alarm/wakeup from Stop/Standby modes.
Technical Context
The STM32F051K8T6 implements an ARM Cortex-M0 core with Harvard bus architecture, supporting Thumb-2 instruction set and NVIC with 32 interrupt vectors. It integrates a programmable voltage detector (PVD), CRC calculation unit, and hardware parity checking on SRAM for functional safety compliance in basic industrial systems.
Clock management includes dual oscillators: 4–32 MHz HSE for precision timing and 32 kHz LSE for RTC, plus internal RC sources (8 MHz HSI with PLL, 40 kHz LSI). Power management supports Sleep, Stop, and Standby modes with VBAT backup for RTC and registers-enabling sub-µA retention current in Standby with RTC active.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 48 MHz max - enables real-time deterministic control at low power budget |
| Flash Memory | 64 KB - sufficient for firmware with USB stack, sensor fusion, and communication protocol stacks |
| SRAM | 8 KB with hardware parity - supports robust data buffering and error detection in safety-critical tasks |
| ADC | 12-bit, 1.0 µs conversion, 16-channel - suitable for fast sampling of analog sensors (e.g., temperature, pressure) |
| DAC | 12-bit, single channel - provides precise analog output for calibration signals or actuator control |
| I/O Pins | Up to 36 with 5 V tolerance - simplifies interfacing with legacy 5 V logic without level shifters |
| Timers | 11 total: TIM1 (advanced PWM w/ deadtime), TIM2–TIM17 (general-purpose), SysTick, WWDG/IWDG - supports motor control, IR decoding, and system supervision |
Pinout & Package
LQFP32 package (7 × 7 mm, 0.8 mm pitch), RoHS-compliant ECOPACK®2, rated for industrial temperature range (–40 °C to +85 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Digital supply input | 2.0–3.6 V main power rail; decoupling required per datasheet layout guidelines |
| VSS | Digital ground | Reference for all digital I/O and core logic; separate from analog ground in mixed-signal designs |
| VDDA | Analog supply input | 2.4–3.6 V dedicated analog rail; must be filtered and isolated from digital noise |
| VSSA | Analog ground | Isolated ground return for ADC/DAC/compensators; connects to VSS at single point |
| PA0–PA15 | General-purpose I/O | Configurable as GPIO, alternate functions (USART1_TX, SPI1_SCK, etc.), or capacitive sensing inputs |
| NRST | Active-low reset input | External reset trigger; internal pull-up; accepts 1.65–5.5 V logic levels |
| BOOT0 | Boot mode selection | High at reset forces system memory boot (for ISP); tied low for normal Flash execution |
| SWDIO/SWCLK | Debug interface | Two-pin Serial Wire Debug (SWD) for programming and real-time debugging via ST-LINK |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive Sensing Controller (TSC) | 18-channel support for touchkey, linear, and rotary sensors-enables UI without mechanical buttons |
| Advanced-Control Timer (TIM1) | 7-channel PWM with programmable deadtime and emergency stop-suited for 3-phase motor gate drive |
| HDMI CEC Interface | Hardware CEC decoder/transmitter-allows remote control interoperability in consumer electronics |
| Low-Power Analog Comparators | Two comparators with selectable hysteresis and window mode-ideal for battery voltage monitoring or threshold detection |
| Temperature Sensor & VREFINT | Calibrated internal sensor (±1.5 °C accuracy) and reference voltage-enables self-calibration without external components |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Brushless DC motor commutation in HVAC blowers or small pumps using hall-effect feedback. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, generating 6-channel complementary PWM with deadtime, and managing thermal protection via internal temperature sensor. Use Value: Integrated TIM1 eliminates need for external gate driver IC; 5 V-tolerant I/O interfaces directly with hall sensors and optocoupled enable lines. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and ambient light. IC Role / Device Role / Timing Role: System-on-chip host managing sensor acquisition (ADC), local processing, and wireless transmission via UART-to-LoRa bridge. Use Value: Standby mode draws <1 µA with RTC wake-up; internal VREFINT and temperature sensor reduce BOM count by two components. |
| Home Appliance UI | POS Terminal Peripheral |
Use Scenario: Touch-enabled control panel for microwave oven or coffee maker with rotary encoder emulation. IC Role / Device Role / Timing Role: Capacitive sensing frontend (TSC) scanning up to 18 electrodes, debouncing inputs, and driving LED indicators via GPIO PWM. Use Value: TSC operates independently of CPU during sleep, enabling ultra-low-power touch wake-up; no external RC network needed. | Use Scenario: Magnetic stripe reader module interfacing with payment terminal via RS-232 or USB-UART bridge. IC Role / Device Role / Timing Role: Protocol translator and signal conditioner: converting MSR analog waveform to digital bitstream using ADC oversampling and USART framing. Use Value: Dual USARTs support simultaneous host communication (UART1) and MSR data streaming (UART2 with auto-baud detection), reducing external logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F030F4P6 | 16 KB Flash, 4 KB SRAM, no DAC, no TSC, fewer timers (7), no CEC | Lacks analog output and capacitive sensing; limited for sensor fusion or UI-rich designs | Select when cost is primary constraint and DAC/TSC are unnecessary |
| STM32F070F6P6 | 32 KB Flash, 6 KB SRAM, no TSC, no CEC, but adds USB 2.0 FS device interface | Enables direct PC connectivity but removes touch capability and HDMI CEC functionality | Choose for USB peripheral applications where touch or consumer IR control is not required |
Compared with STM32F030F4P6 and STM32F070F6P6, the STM32F051K8T6 uniquely balances analog integration (DAC + ADC + comparators), capacitive sensing, and industrial timer features-making it optimal for embedded control nodes needing both precision analog I/O and human interface capability in a compact 32-pin footprint.
Availability
STM32F051K8T6 is available at Aetrix Electronics and suitable for industrial motor drives, smart sensor nodes, home appliance UIs, and POS peripheral modules requiring stable component supply across multi-year production cycles.
Supply support for STM32F051K8T6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, MEMS, and automotive-grade components.
The STM32F0 series targets cost-sensitive, resource-constrained embedded applications-emphasizing low-power operation, analog integration, and ease of certification for industrial and consumer equipment.
FAQ
What is the maximum operating frequency and supported clock sources?
The STM32F051K8T6 runs at up to 48 MHz using its internal 8 MHz HSI oscillator with x6 PLL, or externally from 4–32 MHz HSE crystal. It also supports 32 kHz LSE for RTC and 40 kHz LSI for watchdogs-enabling flexible clock tree configuration for low-power and high-precision timing needs.
Does this MCU support hardware-based capacitive touch sensing?
Yes-it integrates a dedicated Touch Sensing Controller (TSC) supporting up to 18 capacitive sensing channels. This allows implementation of touchkeys, linear sliders, and rotary wheels without external components, with built-in charge transfer measurement and noise filtering.
What debug interface does the STM32F051K8T6 use?
It uses Serial Wire Debug (SWD) with two pins: SWDIO (bidirectional data) and SWCLK (clock). No JTAG support is included. Programming and debugging are fully compatible with ST-LINK/V2 and other SWD-compliant tools, including STM32CubeProgrammer and OpenOCD.
How many communication interfaces are available and what are their key capabilities?
The device offers up to two I2C (one Fast Mode Plus at 1 Mbit/s), two USARTs (one with LIN/IR/ISO7816), two SPIs (18 Mbit/s, one with I2S), and one HDMI CEC interface. All support wakeup from low-power modes, and USART1 includes hardware auto-baud rate detection-ideal for interoperability in mixed-voltage and legacy systems.
STM32F051K8T6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 32-LQFP
- Series:
- STM32F0
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- HDMI-CEC, I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 25
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 13x12b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F051K8T6 FAQ
1.How can I place an order for STM32F051K8T6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F051K8T6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32F051K8T6 reliable?
The price and inventory of STM32F051K8T6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F051K8T6 is usually 5 days.
3.What payment methods are accepted for STM32F051K8T6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F051K8T6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F051K8T6?
STM32F051K8T6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F051K8T6 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32F051K8T6?
For technical support, including STM32F051K8T6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F051K8T6 requirements.
6.How does Aetrix verify that STM32F051K8T6 is sourced from the original manufacturer or authorized distributors?
All STM32F051K8T6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32F051K8T6 meets industry standards.
7.What is the process for return or replacement of STM32F051K8T6?
All STM32F051K8T6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F051K8T6, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32F051K8T6 part is unused and in its original packaging.
Return procedure for STM32F051K8T6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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