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STMicroelectronics STM32F051C8T7TR
- Part No.:
- STM32F051C8T7TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM32F051C8T7TR.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:13,259
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Product details
Overview
STM32F051C8T7TR from STMicroelectronics is a 32-bit ARM Cortex-M0 microcontroller with 64 KB Flash, 8 KB SRAM, 48 MHz max CPU frequency, integrated 12-bit ADC/DAC, and dual USART/I²C/SPI interfaces - deployed in industrial sensor nodes, smart metering front-ends, and low-power HMI control modules.
For engineers reviewing the STM32F051C8T7TR datasheet, STM32F051C8T7TR pinout, STM32F051C8T7TR application, or STM32F051C8T7TR equivalent, key selection criteria include 5 V-tolerant I/O count (up to 36), RTC with alarm/wakeup, capacitive touch support (18 channels), and SWD debug interface compatibility.
Technical Context
The device implements an ARM Cortex-M0 core with Harvard architecture, supporting Thumb-2 instruction set and NVIC with 32 interrupt lines. It integrates a programmable voltage detector (PVD), hardware CRC unit, and memory protection unit (MPU) for secure boot and runtime integrity checks.
Clock system includes dual oscillators: 4–32 MHz external crystal (HSE) and 32 kHz LSE for RTC, plus internal RC sources (HSI 8 MHz, LSI 40 kHz) with PLL for precise 48 MHz system clock derivation - enabling deterministic real-time response across Sleep/Stop/Standby modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0, 48 MHz max - enables deterministic real-time task scheduling in resource-constrained embedded systems |
| Flash / SRAM | 64 KB Flash / 8 KB SRAM with HW parity - supports firmware updates and robust data logging without external memory |
| ADC | 12-bit, 1.0 µs conversion, 16-channel multiplexed - suitable for precision analog sensor acquisition (e.g., temperature, current) |
| DAC | 12-bit single-channel DAC - provides calibrated analog output for actuator control or reference generation |
| I/O Voltage Tolerance | Up to 36 pins 5 V tolerant - simplifies interface with legacy 5 V peripherals without level shifters |
| Timers | 11 timers including TIM1 (advanced-control, 6-channel PWM + deadtime), TIM2/TIM3 (general-purpose), and SysTick - supports motor control, IR decoding, and time-critical event handling |
| RTC | Calendar RTC with alarm and periodic wakeup from Stop/Standby - enables ultra-low-power timekeeping in battery-backed applications |
Pinout & Package
LQFP48 package (7 × 7 mm, 0.5 mm pitch), RoHS-compliant ECOPACK®2, rated for industrial temperature range (–40 °C to +85 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VSS | Digital power supply / ground | Primary 2.0–3.6 V domain powering core, GPIO, and digital peripherals |
| VDDA / VSSA | Analog power supply / ground | Separate 2.4–3.6 V domain isolating ADC/DAC/comp from digital noise |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts external push-button or supervisor IC assertion |
| PA0–PA15, PB0–PB15, PC13–PC15 | General-purpose I/O | Configurable as GPIO, alternate function (USART/I²C/SPI), or analog input; up to 36 pins 5 V tolerant |
| PA13/PA14 | SWD debug interface | Serial Wire Debug (SWDIO/SWCLK) - enables in-circuit programming and real-time debugging via standard JTAG/SWD probe |
| PC13 | RTC oscillator input | Connects to 32.768 kHz crystal for calendar RTC operation with ±20 ppm accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive sensing controller (TSC) | Supports 18 channels for touchkey/linear/rotary sensors - eliminates external touch IC in HMI designs |
| Advanced-control timer (TIM1) | 6-channel complementary PWM with programmable deadtime and emergency stop - enables brushless DC motor control |
| HDMI CEC interface | Hardware CEC receiver with header-detection wakeup - allows low-power remote command listening in consumer electronics |
| Low-power modes | Sleep (core stopped), Stop (1.3 µA typical), Standby (0.5 µA) - extends battery life in portable and energy-harvested devices |
| Unique 96-bit ID | Factory-programmed serial number - enables secure device authentication and firmware binding |
Applications
| Industrial Sensor Node | Smart Energy Meter Front-End |
|---|---|
Use Scenario: Remote environmental monitoring with temperature, humidity, and current sensing, transmitting data via UART-to-LoRaWAN bridge. IC Role / Device Role / Timing Role: Central MCU managing sensor acquisition (ADC), local decision logic, and serial protocol translation. Use Value: Integrated 12-bit ADC with VREFINT calibration and 5 V-tolerant UART pins reduce BOM cost and PCB area vs. discrete signal chain. | Use Scenario: Real-time energy measurement in DIN-rail mounted meters, with tamper detection and secure firmware update capability. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing EEPROM writes, and enforcing secure boot via MPU. Use Value: Hardware CRC unit and 96-bit unique ID enable cryptographic signature verification and anti-cloning protection. |
| Low-Power HMI Control Panel | Brushless DC Motor Starter Module |
Use Scenario: Touch-enabled display panel for HVAC control, operating on coin-cell battery for >1 year. IC Role / Device Role / Timing Role: Capacitive touch controller + display driver interface (SPI) + RTC-based sleep/wakeup scheduler. Use Value: TSC peripheral and Stop-mode current of 1.3 µA allow direct battery operation without PMIC. | Use Scenario: Compact fan controller using hall-effect feedback, requiring 3-phase commutation and thermal fault shutdown. IC Role / Device Role / Timing Role: PWM generator with deadtime insertion and emergency stop triggered by comparator overcurrent detection. Use Value: TIM1 advanced timer + dual comparators enable safe, self-contained motor drive without external gate drivers or protection logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F030F4P6 | 32 KB Flash, no DAC, no capacitive sensing, 20-pin TSSOP package | Limited analog capability and I/O count; suited for basic control only | Select when cost sensitivity outweighs need for DAC/touch/RTC features |
| STM32G031F8P6 | Newer G0-series, 64 KB Flash, 8 KB SRAM, same LQFP48, but no TSC and different ADC timing | Higher clock stability and enhanced security (AES, secure boot), but lacks built-in touch sensing | Prefer for new designs requiring long-term roadmap support and crypto acceleration |
Compared with STM32F030F4P6, the STM32F051C8T7TR adds DAC, TSC, and richer communication options - justifying its use in sensor fusion and HMI. Versus STM32G031F8P6, it trades modern security for mature touch integration and lower entry-level toolchain complexity.
Availability
STM32F051C8T7TR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meter front-ends, and low-power HMI control panels requiring stable component supply throughout product lifecycle.
Supply support for STM32F051C8T7TR 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, low-power embedded applications requiring ARM Cortex-M0 performance with rich analog and timing peripherals - optimized for industrial control, appliance HMI, and IoT edge nodes.
FAQ
What is the maximum operating frequency and supported voltage range?
The STM32F051C8T7TR operates at up to 48 MHz with a digital supply voltage (VDD) range of 2.0 V to 3.6 V and analog supply (VDDA) from 2.4 V to 3.6 V. Its internal PLL derives the system clock from HSI or HSE sources, and all specifications are validated across the full industrial temperature range (–40 °C to +85 °C).
Does this MCU support hardware-based capacitive touch sensing?
Yes - it integrates a dedicated Touch Sensing Controller (TSC) supporting up to 18 channels for touchkey, linear, and rotary sensors. The TSC includes built-in charge transfer measurement, spread-spectrum modulation, and noise immunity features, eliminating the need for external touch ICs in HMI applications.
How many I/O pins are 5 V tolerant, and which packages support them?
Up to 36 I/O pins are 5 V tolerant, confirmed across all LQFP32, LQFP48, UFQFPN48, and LQFP64 packages. The STM32F051C8T7TR uses LQFP48, and all GPIOs marked "FT" (5 V tolerant) in the pin description table (Section 4 of DS) retain this capability in that package.
Is Serial Wire Debug (SWD) supported, and what pins are required?
Yes - Serial Wire Debug (SWD) is fully supported using PA13 (SWDIO) and PA14 (SWCLK). These pins are dedicated to debug and do not require remapping. No additional pins (e.g., NRST) are mandatory for basic SWD operation, though NRST improves reliability during firmware loading.
STM32F051C8T7TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-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:
- 39
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F051C8T7TR FAQ
1.How can I place an order for STM32F051C8T7TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F051C8T7TR 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 STM32F051C8T7TR reliable?
The price and inventory of STM32F051C8T7TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F051C8T7TR is usually 5 days.
3.What payment methods are accepted for STM32F051C8T7TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F051C8T7TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F051C8T7TR?
STM32F051C8T7TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F051C8T7TR 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 STM32F051C8T7TR?
For technical support, including STM32F051C8T7TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F051C8T7TR requirements.
6.How does Aetrix verify that STM32F051C8T7TR is sourced from the original manufacturer or authorized distributors?
All STM32F051C8T7TR 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 STM32F051C8T7TR meets industry standards.
7.What is the process for return or replacement of STM32F051C8T7TR?
All STM32F051C8T7TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F051C8T7TR, 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 STM32F051C8T7TR part is unused and in its original packaging.
Return procedure for STM32F051C8T7TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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