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STMicroelectronics STM32F101C8U6TR
- Part No.:
- STM32F101C8U6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
STM32F101C8U6TR.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48UFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:3,176
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Product details
Overview
STM32F101C8U6TR from STMicroelectronics is a medium-density ARM® Cortex®-M3 32-bit microcontroller with 64 KB Flash, 10 KB SRAM, 36 MHz max CPU frequency, 12-bit ADC (1 µs conversion), and 7 communication interfaces (2×I²C, 3×USART, 2×SPI). It operates from 2.0–3.6 V and supports industrial temperature range (–40°C to +85°C), deployed in motor control and sensor interface modules.
For engineers reviewing the STM32F101C8U6TR datasheet, STM32F101C8U6TR pinout, STM32F101C8U6TR application, or STM32F101C8U6TR equivalent, key selection considerations include Flash/SRAM size, 48-pin UFQFPN package compatibility, 36 MHz real-time execution capability, and integrated analog-peripheral co-location for compact embedded control designs.
Technical Context
The STM32F101C8U6TR implements an ARM Cortex-M3 core with single-cycle multiplication and hardware division, executing at up to 36 MHz with 1.25 DMIPS/MHz performance. Its clock system integrates a 4–16 MHz external crystal oscillator, 8 MHz factory-trimmed internal RC, 40 kHz LSI RC, and PLL for CPU clock generation.
It features a 7-channel DMA controller servicing timers, ADC, SPI, I²C, and USART peripherals; nested vectored interrupt controller (NVIC) supporting 64 interrupts; and low-power modes (Sleep, Stop, Standby) with VBAT-backed RTC and backup registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 36 MHz max - enables deterministic real-time control with <1 µs ISR latency in typical configurations. |
| Memory | 64 KB Flash / 10 KB SRAM - sufficient for standalone motor control firmware with sensor fusion and communication stacks. |
| ADC | 12-bit, 1 µs conversion, 16-channel - supports simultaneous sampling of voltage/current/temperature in power stage monitoring. |
| I/O Count | 37 GPIO pins, 5 V-tolerant on most - allows direct interfacing with legacy 5 V logic and industrial sensors without level shifters. |
| Timers | Three 16-bit general-purpose timers + SysTick + two watchdogs - provides PWM generation, input capture, and safety-critical timeout supervision. |
| Communication | 2×I²C, 3×USART, 2×SPI - enables concurrent UART-based debugging, I²C sensor bus, and SPI flash or display interface. |
| Package | UFQFPN48, 7 × 7 mm, 0.5 mm pitch - surface-mount compatible with automated assembly and thermal performance suitable for enclosed industrial enclosures. |
Pinout & Package
STM32F101C8U6TR uses the UFQFPN48 (7 × 7 mm, 0.5 mm pitch) ultra-thin fine-pitch quad flat package, optimized for space-constrained PCB layouts and thermal dissipation in fanless industrial applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 2.0–3.6 V supply rails with decoupling support for noise-sensitive analog/digital domains. |
| PA0–PA15, PB0–PB15, PC13–PC15 | General-purpose I/O | 37 total GPIOs; most are 5 V-tolerant, enabling mixed-voltage system integration without external translators. |
| OSC_IN / OSC_OUT | External crystal oscillator input/output | Supports 4–16 MHz quartz crystals for precise timing in communication and RTC applications. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts 1.65–5.5 V logic levels for robust system initialization. |
| BOOT0 | Boot mode selection | Configures boot source (system memory, main Flash, or SRAM); requires external pull-up/down for production programming. |
| VREF+ | Analog reference voltage input | Optional external reference for ADC; improves measurement accuracy when internal 3.3 V reference is insufficient. |
Key Features
| Feature | Design Value |
|---|---|
| Embedded CRC calculation unit | Enables fast firmware integrity checks during boot or OTA updates without CPU overhead. |
| Temperature sensor | Integrated die-temperature sensing with ±5°C accuracy - used for thermal derating in motor drivers and power supplies. |
| Serial wire debug (SWD) | 2-pin debug interface replacing JTAG - reduces PCB footprint while retaining full trace and breakpoint capability. |
| Programmable voltage detector (PVD) | Monitors VDD and triggers interrupt or reset below user-defined threshold - prevents erratic operation during brown-out conditions. |
| 96-bit unique ID | Factory-programmed serial number - supports secure device authentication and license binding in connected equipment. |
Applications
| Industrial Motor Control | Sensor Data Acquisition |
|---|---|
Use Scenario: Brushless DC motor commutation with current/voltage feedback and thermal monitoring. IC Role / Device Role / Timing Role: Real-time PWM generation, ADC sampling synchronization, and fault handling via independent watchdog. Use Value: Integrated 3×16-bit timers and 12-bit ADC enable closed-loop control within 50 µs cycle time, reducing BOM cost versus discrete MCU+analog ASIC solutions. | Use Scenario: Multi-sensor environmental monitoring node (temperature, humidity, pressure) with local processing and UART/RS-485 output. IC Role / Device Role / Timing Role: Sensor interface hub with I²C master, USART for Modbus RTU, and internal temperature sensor for calibration compensation. Use Value: 37 GPIOs and 7 communication peripherals allow direct connection of 5+ sensors and wired industrial protocols without external bridge ICs. |
| Smart Power Supply Monitoring | IoT Edge Node Controller |
Use Scenario: AC/DC power supply with overvoltage, overcurrent, and overtemperature protection logging. IC Role / Device Role / Timing Role: Analog front-end controller with ADC-triggered fault response, RTC-stamped event logging, and SPI-connected EEPROM storage. Use Value: VBAT-powered RTC and backup registers retain fault timestamps across power cycles, meeting IEC 62368-1 logging requirements. | Use Scenario: Battery-powered wireless sensor node using LoRaWAN or NB-IoT modem with local decision logic. IC Role / Device Role / Timing Role: Low-power host controller managing sleep/wake cycles, sensor polling, and modem data framing via USART. Use Value: Stop mode current <3.5 µA (typ.) extends 2xAA battery life beyond 5 years in periodic wake-up applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F030F4P6 | ARM Cortex-M0, 48 MHz, 16 KB Flash, no USB, fewer timers and communication interfaces | Limited to basic control tasks; lacks ADC resolution and peripheral count for multi-sensor systems | Select when cost sensitivity outweighs need for advanced peripherals and higher precision analog. |
| STM32F103C8T6 | Same package and pinout, but 128 KB Flash, 20 KB SRAM, enhanced ADC (dual-sampling), and additional timer channels | Direct drop-in upgrade path for firmware scalability and increased feature density | Choose when future firmware expansion or dual ADC use cases (e.g., motor phase current + voltage) are anticipated. |
Compared with STM32F030F4P6, the STM32F101C8U6TR delivers higher analog precision and richer peripheral set for sensor-rich control; compared with STM32F103C8T6, it trades Flash/SRAM capacity for lower cost and identical footprint where 64 KB suffices.
Availability
STM32F101C8U6TR is available at Aetrix Electronics and suitable for industrial motor control, sensor data acquisition, smart power supply monitoring, and IoT edge node controller applications requiring stable component supply across extended product lifecycles.
Supply support for STM32F101C8U6TR 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, sensors, and automotive-grade components.
The STM32F101xx series targets cost-sensitive industrial and consumer embedded applications requiring reliable real-time control, integrated analog functionality, and long-term supply stability without premium feature sets.
FAQ
What is the maximum operating temperature range for STM32F101C8U6TR?
The STM32F101C8U6TR is rated for industrial temperature range: –40°C to +85°C ambient. This is confirmed in Section 5.3.1 of the datasheet (DocID13586 Rev 17), and applies to all operating modes including Run, Stop, and Standby with VDD = 2.0–3.6 V and VBAT = 1.8–3.6 V.
Does STM32F101C8U6TR support USB connectivity?
No, the STM32F101C8U6TR does not include a USB peripheral. It belongs to the "access line" subfamily, which omits USB, CAN, and Ethernet interfaces to reduce cost and complexity. For USB-capable variants, consider the STM32F102 or STM32F103 series.
Can STM32F101C8U6TR be programmed via SWD using standard tools?
Yes - it supports Serial Wire Debug (SWD) using the SWCLK and SWDIO pins (PA14 and PA13). ST-LINK/V2, J-Link, and CMSIS-DAP compliant debuggers are fully compatible, and no external bootloader is required for standard Flash programming.
Is the UFQFPN48 package RoHS and REACH compliant?
Yes - the STM32F101C8U6TR carries ECOPACK® certification, indicating compliance with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Full material declarations and substance reports are available in ST's official product change notifications (PCNs).
STM32F101C8U6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-VFQFN Exposed Pad
- Series:
- STM32F1
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 36MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- DMA, PDR, POR, PVD, PWM, Temp Sensor, WDT
- Number of I/O:
- 37
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 10K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 10x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F101C8U6TR FAQ
1.How can I place an order for STM32F101C8U6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F101C8U6TR 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 STM32F101C8U6TR reliable?
The price and inventory of STM32F101C8U6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F101C8U6TR is usually 5 days.
3.What payment methods are accepted for STM32F101C8U6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F101C8U6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F101C8U6TR?
STM32F101C8U6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F101C8U6TR 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 STM32F101C8U6TR?
For technical support, including STM32F101C8U6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F101C8U6TR requirements.
6.How does Aetrix verify that STM32F101C8U6TR is sourced from the original manufacturer or authorized distributors?
All STM32F101C8U6TR 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 STM32F101C8U6TR meets industry standards.
7.What is the process for return or replacement of STM32F101C8U6TR?
All STM32F101C8U6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F101C8U6TR, 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 STM32F101C8U6TR part is unused and in its original packaging.
Return procedure for STM32F101C8U6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32F101C8U6TR Tags
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