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STMicroelectronics STM32F051R6T6
- Part No.:
- STM32F051R6T6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32F051R6T6.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:766
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Product details
Overview
STM32F051R6T6 from STMicroelectronics is an ARM® Cortex®-M0 32-bit microcontroller with 32 KB Flash, 8 KB SRAM, 48 MHz max CPU frequency, integrated 12-bit ADC and DAC, and dual USART/I²C/SPI interfaces - deployed in industrial sensor nodes, motor control modules, and smart metering front-ends.
For engineers reviewing the STM32F051R6T6 datasheet, STM32F051R6T6 pinout, STM32F051R6T6 application, or STM32F051R6T6 equivalent, key selection criteria include its 64-pin LQFP package, 5 V-tolerant I/Os (up to 36), 1.0 µs 12-bit ADC conversion time, RTC with alarm/wakeup, and SWD debug interface compatibility.
Technical Context
The device implements a single-cycle ARM Cortex-M0 core with Thumb-2 instruction set, supporting deterministic real-time execution and low-latency interrupt handling via NVIC with 32 interrupt vectors. Its memory subsystem includes 32 KB of on-chip Flash with ECC protection and 8 KB SRAM with hardware parity checking for functional safety compliance.
Clock architecture integrates multiple sources: 4–32 MHz external crystal oscillator, 32 kHz LSE for RTC, 8 MHz HSI with PLL (×6) for system clock, and 40 kHz LSI for watchdog timing - enabling flexible power/performance trade-offs across Sleep/Stop/Standby modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 48 MHz max - enables deterministic real-time control with <100 ns interrupt latency. |
| Flash Memory | 32 KB - sufficient for firmware + bootloader + OTA update partition in compact embedded applications. |
| SRAM | 8 KB with HW parity - supports robust data buffering and runtime variable storage with error detection. |
| ADC | 12-bit, 1.0 µs conversion, 16-channel - delivers 1 MSPS sampling for analog sensor acquisition (e.g., current/voltage/temp). |
| DAC | 12-bit single channel - provides precise analog output for calibration signals or actuator reference voltages. |
| I/O Voltage Tolerance | Up to 36 pins 5 V tolerant - simplifies interfacing with legacy 5 V peripherals without level shifters. |
| RTC | Calendar mode with alarm & periodic wakeup - enables time-stamped logging and low-power wake events from Stop/Standby. |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad - optimized for industrial PCB layouts requiring mechanical stability and moderate thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Digital supply input | 2.0–3.6 V main power rail; decoupling required per STM32 layout guidelines. |
| VDDA | Analog supply input | 2.4–3.6 V dedicated analog rail; must be filtered and isolated from digital noise. |
| PA0–PA15 | General-purpose I/O port A | Configurable as GPIO, ADC_IN0–IN15, TIMx_CHy, USART_TX/RX, etc., with 5 V tolerance on selected pins. |
| PB0–PB15 | General-purpose I/O port B | Supports TIMx_CHy, I²C_SCL/SDA, SPI_NSS/SCK/MISO/MOSI, and capacitive sensing channels. |
| NRST | Active-low reset input | Asynchronous reset pin; internal pull-up; accepts 1.65–5.5 V logic levels. |
| SWDIO / SWCLK | Serial Wire Debug interface | Two-pin debug interface replacing JTAG; enables full programming, breakpoint, and trace capability. |
Key Features
| Feature | Design Value |
|---|---|
| Advanced-control timer (TIM1) | 16-bit, 7-channel PWM with deadtime insertion and emergency stop - suitable for 3-phase motor gate drive. |
| Capacitive sensing controller (TSC) | Up to 18 channels - enables touchkey, linear, and rotary sensors without external components. |
| HDMI CEC interface | Hardware CEC protocol engine - allows direct integration into consumer electronics remote control ecosystems. |
| Programmable voltage detector (PVD) | Configurable threshold monitoring on VDD - triggers interrupt or reset before brownout affects operation. |
| 96-bit unique ID | Factory-programmed serial number - supports secure device authentication and license binding. |
Applications
| Industrial Sensor Node | Smart Meter Front-End |
|---|---|
Use Scenario: Continuous environmental monitoring (temperature, humidity, pressure) with wireless telemetry upload every 15 minutes. IC Role / Device Role / Timing Role: Central MCU managing sensor polling, ADC conversion, data preprocessing, and low-power radio wake/sleep scheduling. Use Value: 1.0 µs ADC enables fast multi-sensor sampling; RTC alarm ensures precise telemetry intervals; Stop mode draws <1.3 µA for extended battery life. | Use Scenario: Electricity meter measuring voltage/current waveforms and calculating kWh, reactive power, and harmonics. IC Role / Device Role / Timing Role: Real-time waveform capture engine synchronizing ADC sampling to line frequency via TIM1 trigger. Use Value: 12-bit ADC with 16-channel mux supports simultaneous voltage/current/neutral sensing; 5 V-tolerant I/Os interface directly with isolation amplifiers. |
| Brushless DC Motor Controller | Home Appliance Touch Interface |
Use Scenario: Closed-loop commutation for 3-phase BLDC fan using hall-effect or back-EMF sensing. IC Role / Device Role / Timing Role: PWM generator with deadtime control, current sensing ADC, and emergency stop logic. Use Value: TIM1's 7-channel PWM + deadtime + break input enables safe 6-step commutation; 32 KB Flash accommodates FOC algorithm + safety checks. | Use Scenario: Touch-sensitive control panel for washing machine or oven with slider, wheel, and button zones. IC Role / Device Role / Timing Role: Capacitive sensing controller driving up to 18 electrodes with automatic drift compensation. Use Value: Integrated TSC eliminates external touch IC; low-power Stop mode (<0.5 µA) maintains touch readiness during standby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F051K6U6 | UFQFPN32 (5 × 5 mm), 32-pin, 20 GPIOs, no TSC, no HDMI CEC | Compact space-constrained designs lacking touch or CEC requirements | Select when board area is critical and peripheral count is reduced. |
| STM32F071RB | 64-pin LQFP, 128 KB Flash, 16 KB SRAM, USB 2.0 FS, enhanced timers | Applications needing USB connectivity, larger code footprint, or higher-resolution PWM | Choose for future-proofing or when USB host/device functionality is required. |
Compared with STM32F051R6T6, the K6U6 offers smaller footprint but sacrifices touch sensing and CEC; the F071RB adds USB and memory headroom at higher cost and power - making the R6T6 optimal for cost-sensitive, touch-enabled industrial controls with minimal USB need.
Availability
STM32F051R6T6 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart meter front-ends, brushless DC motor controllers, and home appliance touch interfaces requiring stable component supply and long-term production support.
Supply support for STM32F051R6T6 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 devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The STM32F0 series targets cost-sensitive, energy-efficient embedded applications requiring ARM Cortex-M0 performance with rich analog/mixed-signal peripherals and robust industrial qualification.
FAQ
What is the maximum operating temperature range for STM32F051R6T6?
The STM32F051R6T6 is qualified for industrial temperature range: –40 °C to +85 °C ambient. It meets JEDEC JESD47 reliability standards and supports continuous operation across this range when operated within specified VDD (2.0–3.6 V) and thermal design limits per datasheet Section 7.8.
Does STM32F051R6T6 support USB communication?
No, STM32F051R6T6 does not integrate a USB peripheral. It provides USART, I²C, SPI, and HDMI CEC interfaces. For USB connectivity, consider the STM32F071RB or STM32F072RB variants, which include USB 2.0 Full-Speed device controllers.
Can the internal 12-bit DAC drive a 500 Ω load directly?
No - the DAC output is specified for ≤60 µA load current (Section 6.3.17). Driving a 500 Ω load at 3.3 V requires 6.6 mA, exceeding DAC capability. An external op-amp buffer is required for such loads to maintain linearity and settling time.
Is the STM32F051R6T6 RoHS and REACH compliant?
Yes - STM32F051R6T6 carries ECOPACK®2 qualification (per datasheet Table 1), confirming full compliance with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, including lead-free terminations and halogen-free packaging materials.
STM32F051R6T6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-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:
- 55
- 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 19x12b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F051R6T6 FAQ
1.How can I place an order for STM32F051R6T6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F051R6T6 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 STM32F051R6T6 reliable?
The price and inventory of STM32F051R6T6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F051R6T6 is usually 5 days.
3.What payment methods are accepted for STM32F051R6T6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F051R6T6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F051R6T6?
STM32F051R6T6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F051R6T6 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 STM32F051R6T6?
For technical support, including STM32F051R6T6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F051R6T6 requirements.
6.How does Aetrix verify that STM32F051R6T6 is sourced from the original manufacturer or authorized distributors?
All STM32F051R6T6 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 STM32F051R6T6 meets industry standards.
7.What is the process for return or replacement of STM32F051R6T6?
All STM32F051R6T6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F051R6T6, 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 STM32F051R6T6 part is unused and in its original packaging.
Return procedure for STM32F051R6T6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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