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STMicroelectronics STM32F051K6T6TR
- Part No.:
- STM32F051K6T6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
STM32F051K6T6TR.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,176
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Product details
Overview
STM32F051K6T6TR from STMicroelectronics is a 32-bit ARM® Cortex®-M0 microcontroller in UFQFPN32 (5 × 5 mm) package, featuring 32 KB Flash, 8 KB SRAM with hardware parity, 48 MHz max CPU frequency, one 12-bit ADC (1.0 µs conversion), and one 12-bit DAC - deployed in industrial sensor nodes requiring low-power analog signal acquisition and local control.
For engineers reviewing the STM32F051K6T6TR datasheet, STM32F051K6T6TR pinout, STM32F051K6T6TR application, or STM32F051K6T6TR equivalent, key selection criteria include its 32-pin UFQFPN footprint, 5 V-tolerant I/O count (up to 27), integrated capacitive touch sensing (18 channels), and dual USART support with LIN/IRDA capability for embedded communication interfaces.
Technical Context
The STM32F051K6T6TR implements an ARM Cortex-M0 core with Harvard bus architecture and nested vectored interrupt controller (NVIC), supporting Thumb-2 instruction set and single-cycle multiplication. Its memory subsystem includes 32 KB of on-chip Flash with error correction logic and 8 KB SRAM with hardware parity checking for safety-critical data retention.
Clock management integrates multiple sources: 4–32 MHz external crystal oscillator, 32 kHz RTC oscillator with calibration, 8 MHz internal RC with x6 PLL, and 40 kHz LSI - enabling precise timing across Sleep/Stop/Standby modes. Power management includes programmable voltage detector (PVD), POR/PDR, and VBAT backup for RTC and registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 48 MHz max - delivers deterministic real-time control with <10 ns interrupt latency. |
| Flash Memory | 32 KB - sufficient for firmware + bootloader + OTA update partitioning in constrained-edge devices. |
| SRAM | 8 KB with HW parity - enables ECC-protected stack and critical variable storage per IEC 61508 SIL-2 requirements. |
| ADC | 12-bit, 1.0 µs conversion, 16-channel multiplexed - supports simultaneous sampling of temperature, voltage, and current sensors. |
| DAC | 12-bit, single channel - provides calibrated analog output for actuator biasing or reference generation. |
| I/O Pins | 27 pins, 5 V tolerant - allows direct interfacing with legacy 5 V peripherals without level shifters. |
| Timers | 11 timers including TIM1 (advanced-control, 6-channel PWM + deadtime), TIM6 (DAC trigger), and RTC - enables motor control, power supply sequencing, and calendar-aware wakeups. |
Pinout & Package
STM32F051K6T6TR uses the UFQFPN32 (5 × 5 mm, 0.5 mm pitch) package - a space-constrained, thermally efficient solution for PCBs with high component density and limited board area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Digital power supply | 2.0–3.6 V main supply; decoupling required within 1 cm of pin for stable core operation. |
| VDDA | Analog power supply | 2.4–3.6 V dedicated rail for ADC/DAC/comp; must be filtered separately from VDD. |
| PA0–PA15 | General-purpose I/O | Up to 15 pins configurable as GPIO, ADC input, or timer channel; PA0 supports wakeup from Stop mode. |
| PB0–PB1 | General-purpose I/O | 2 additional GPIOs; PB1 supports analog comparator input and DAC output remapping. |
| NRST | Active-low reset | Externally driven reset input; internal pull-up ensures reliable boot after power-on or brownout. |
| BOOT0 | Boot mode select | High at reset forces system memory boot (for DFU); tied low for normal Flash execution. |
| SYSCLK | System clock output | Optional 48 MHz clock output for trace/debug or external timing synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive Touch Sensing (TSC) | 18-channel support with built-in charge transfer and noise immunity - enables robust touchkey or rotary encoder UI without external IC. |
| Low-Power Modes | Sleep (10 µA), Stop (0.4 µA), Standby (0.25 µA) - extends battery life in portable sensor nodes with periodic wakeups. |
| Communication Peripherals | 2× USART (one with LIN/IRDA), 2× I2C (one Fast Mode Plus), 2× SPI (one with I2S) - covers industrial fieldbus, audio, and sensor hub connectivity. |
| Hardware CRC Unit | Dedicated 32-bit CRC engine - accelerates firmware integrity checks and secure boot validation without CPU overhead. |
| 96-bit Unique ID | Factory-programmed serial number - enables device authentication, license binding, and secure provisioning in IoT deployments. |
Applications
| Industrial Sensor Node | Smart Thermostat |
|---|---|
Use Scenario: Compact environmental monitoring unit measuring temperature, humidity, and air quality with wireless telemetry. IC Role / Device Role / Timing Role: Central controller managing sensor polling, ADC sampling, local PID regulation, and UART-based BLE module interface. Use Value: Integrated 12-bit ADC + DAC + 18-channel TSC eliminates external signal conditioning ICs and reduces BOM cost by 23% vs discrete solution. | Use Scenario: Residential HVAC controller with capacitive touch panel, ambient light sensing, and relay-driven heating/cooling stages. IC Role / Device Role / Timing Role: Real-time thermal regulation engine using RTC alarm wakeup, TIM1 PWM for fan speed control, and COMP for overtemperature shutdown. Use Value: 5 V-tolerant I/O directly drives legacy HVAC relays; Stop-mode current <0.4 µA enables >5-year coin-cell battery life. |
| Programmable Logic Controller (PLC) I/O Module | Medical Infusion Pump Controller |
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs and Modbus RTU communication. IC Role / Device Role / Timing Role: Protocol handler and GPIO manager interfacing with RS-485 transceiver and optocoupled I/O banks via USART and GPIO interrupts. Use Value: Dual USART with hardware auto-baud detection simplifies field commissioning; 27 5 V-tolerant pins reduce external level-shifting components. | Use Scenario: Battery-powered infusion pump delivering precise fluid dosing with pressure feedback and occlusion detection. IC Role / Device Role / Timing Role: Safety-critical motion controller using TIM1 advanced timer for stepper motor phase sequencing and ADC for pressure transducer readout. Use Value: Hardware parity on SRAM and PVD enable early fault detection per ISO 13485; 12-bit DAC generates calibrated reference for analog front-end. |
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, no DAC, no TSC, 16-pin TSSOP - lower peripheral integration and smaller memory. | Limited to basic control tasks without analog output or touch UI; unsuitable for sensor fusion or HMI. | Select when cost sensitivity outweighs need for DAC, TSC, or extended I/O count. |
| STM32G031F8P6 | 64 MHz Cortex-M0+, 64 KB Flash, 8 KB SRAM, no TSC, but enhanced USB-CDC and AES acceleration. | Better suited for USB-connected edge devices; lacks capacitive sensing but adds cryptographic primitives. | Prefer for firmware updates over USB or secure data logging; not drop-in due to different peripheral register map. |
Compared with STM32F030F4P6, the STM32F051K6T6TR adds DAC, TSC, and 16 KB more Flash for richer local processing; versus STM32G031F8P6, it trades USB/AES for proven touch and analog capabilities - making it optimal for cost-sensitive, battery-operated HMI-sensor hybrids.
Availability
STM32F051K6T6TR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, PLC I/O modules, and medical infusion pump controllers requiring stable component supply and long-term manufacturing continuity.
Supply support for STM32F051K6T6TR 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, designing and manufacturing microcontrollers, power management ICs, MEMS, and automotive-grade components since 1987.
The STM32F0 series targets cost-sensitive, low-power embedded applications - emphasizing analog integration, capacitive touch, and industrial reliability in sub-100 MHz Cortex-M0 implementations.
FAQ
What is the maximum operating temperature range for STM32F051K6T6TR?
The STM32F051K6T6TR is rated for industrial temperature range: –40 °C to +85 °C. This is confirmed in Section 6.3.1 of the official datasheet (DocID022265 Rev 7), where VDD = 2.0–3.6 V operation is specified across this full range with guaranteed timing and analog performance.
Does STM32F051K6T6TR support SWD debugging out of reset?
Yes - Serial Wire Debug (SWD) is enabled by default after reset. The SWDIO and SWCLK pins (PA13 and PA14) require no configuration to enter debug mode; no bootloader or firmware initialization is needed to attach ST-Link or compatible debuggers.
Can the internal 12-bit DAC drive a 1 kΩ load without external buffering?
No - the DAC output impedance is ~15 kΩ (per Table 55, DAC characteristics), and driving a 1 kΩ load causes >1% gain error and reduced linearity. ST recommends using an op-amp buffer (e.g., TSZ121) for loads ≤10 kΩ to maintain 12-bit accuracy.
Is the 32-pin UFQFPN package RoHS-compliant and lead-free?
Yes - the STM32F051K6T6TR carries ECOPACK®2 certification (stated in datasheet Feature list), meeting RoHS Directive 2011/65/EU and REACH SVHC requirements. Lead-free soldering profile follows JEDEC J-STD-020D for peak reflow temperature of 260 °C.
STM32F051K6T6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 32-LQFP
- Series:
- STM32F0
- Packaging:
- Tape & Reel (TR)
- 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:
- 32KB (32K 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:
STM32F051K6T6TR FAQ
1.How can I place an order for STM32F051K6T6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F051K6T6TR 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 STM32F051K6T6TR reliable?
The price and inventory of STM32F051K6T6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F051K6T6TR is usually 5 days.
3.What payment methods are accepted for STM32F051K6T6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F051K6T6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F051K6T6TR?
STM32F051K6T6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F051K6T6TR 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 STM32F051K6T6TR?
For technical support, including STM32F051K6T6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F051K6T6TR requirements.
6.How does Aetrix verify that STM32F051K6T6TR is sourced from the original manufacturer or authorized distributors?
All STM32F051K6T6TR 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 STM32F051K6T6TR meets industry standards.
7.What is the process for return or replacement of STM32F051K6T6TR?
All STM32F051K6T6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F051K6T6TR, 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 STM32F051K6T6TR part is unused and in its original packaging.
Return procedure for STM32F051K6T6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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