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STMicroelectronics STM32F101TBU6TR
- Part No.:
- STM32F101TBU6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 36-VFQFN Exposed Pad
- Datasheet:
-
STM32F101TBU6TR.pdf
- Description:
- IC MCU 32BIT 128KB FLSH 36VFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:1,198
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Product details
Overview
STM32F101TBU6TR from STMicroelectronics is a 32-bit ARM® Cortex®-M3 microcontroller in UFQFPN48 package, featuring 36 MHz max CPU frequency, 64 KB Flash, 10 KB SRAM, 12-bit ADC (1 µs conversion), and 7 communication interfaces including 2×I²C, 3×USART, and 2×SPI. It targets cost-sensitive industrial control and sensor node applications requiring low-power operation and integrated analog peripherals.
For engineers reviewing the STM32F101TBU6TR datasheet, STM32F101TBU6TR pinout, STM32F101TBU6TR application, or STM32F101TBU6TR equivalent, key selection factors include its 48-pin ultra-thin QFN footprint, 2.0–3.6 V supply range, 5 V-tolerant I/Os, RTC with VBAT support, and SWD/JTAG debug interface compatibility.
Technical Context
The device implements an ARM Cortex-M3 core with single-cycle multiplication, hardware division, and nested vectored interrupt controller (NVIC) supporting up to 64 interrupts. Its clock system integrates dual oscillators (4–16 MHz HSE + 32.768 kHz LSE), programmable PLL, and factory-trimmed 8 MHz HSI RC source for flexible timing configuration.
DMA supports 7 channels with peripheral arbitration for timers, ADC, SPI, I²C, and USART transfers-enabling zero-CPU-overhead data movement. The 12-bit ADC includes temperature sensor input and operates across full 0–3.6 V range with 1 µs conversion time at 14 MHz sampling clock.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 36 MHz max frequency - enables deterministic real-time control at 1.25 DMIPS/MHz performance |
| Flash Memory | 64 KB - sufficient for firmware with bootloader, communication stacks, and control algorithms |
| SRAM | 10 KB - supports moderate buffer sizes for UART/SPI packet handling and sensor data aggregation |
| ADC Resolution & Speed | 12-bit, 1 µs conversion - delivers 12-bit precision at up to 1 MSPS for analog sensor interfacing |
| I/O Count & Tolerance | 37 fast I/Os, 5 V-tolerant - simplifies interface to legacy 5 V logic without level shifters |
| Communication Interfaces | 2×I²C, 3×USART, 2×SPI - supports multi-sensor networks, RS-485/RS-232 gateways, and flash memory expansion |
| Low-Power Modes | Sleep, Stop, Standby with VBAT RTC - enables battery-backed operation down to 1.5 µA in Standby mode |
Pinout & Package
STM32F101TBU6TR uses a 48-pin Ultra-Thin Fine Pitch Quad Flat No-lead (UFQFPN48) package, 7 × 7 mm body, 0.5 mm pitch, with exposed thermal pad for enhanced thermal dissipation in compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & Analog Power Supply | 2.0–3.6 V main supply; separate analog rail ensures ADC accuracy and noise immunity |
| VSS, VSSA | Ground Reference | Digital and analog ground pins-must be connected to common low-impedance ground plane |
| PA0–PA15, PB0–PB15, PC13–PC15 | General-Purpose I/O | 37 total GPIOs; most support external interrupts, alternate functions, and 5 V tolerance |
| NRST | Active-Low Reset Input | Asynchronous reset pin with internal pull-up; accepts 10 µs minimum pulse width |
| BOOT0 | Boot Mode Selection | High at power-on selects system memory boot loader; used for factory programming or recovery |
| SWDIO / SWCLK | Serial Wire Debug Interface | 2-pin debug port replacing JTAG-reduces PCB footprint while retaining full debug capability |
Key Features
| Feature | Design Value |
|---|---|
| Embedded CRC Calculation Unit | Hardware-accelerated CRC-32 generation for firmware integrity checks and communication frame validation |
| Temperature Sensor | On-die sensor calibrated against reference voltage-enables ambient temperature monitoring without external components |
| Programmable Voltage Detector (PVD) | Configurable threshold detection on VDD-triggers interrupt or reset before brown-out, protecting data during power dips |
| 96-bit Unique ID | Factory-programmed serial number-supports secure device authentication and license binding in production firmware |
| Independent & Window Watchdog Timers | Dual watchdog architecture-prevents runaway code (independent) and timing violations (windowed) in safety-critical loops |
Applications
| Industrial Sensor Node | Smart Metering Interface |
|---|---|
Use Scenario: Compact environmental monitor collecting temperature, humidity, and pressure via analog sensors and digital I²C devices. IC Role / Device Role / Timing Role: Central MCU managing sensor acquisition, local processing, and wireless transmission via UART-connected LoRa module. Use Value: Integrated 12-bit ADC, 5 V-tolerant I/Os, and low-power Stop mode enable 10-year battery life with periodic wake-up and measurement cycles. | Use Scenario: Electricity meter front-end unit interfacing with metrology ICs and display driver over SPI/I²C, while logging data to EEPROM via I²C. IC Role / Device Role / Timing Role: Communication bridge and data aggregator with RTC timestamping and tamper detection via GPIO interrupts. Use Value: VBAT-powered RTC with backup registers preserves time and event logs during main power loss-critical for billing accuracy and audit trails. |
| Home Automation Gateway | Motor Control Starter Kit |
Use Scenario: Zigbee-to-WiFi bridge connecting legacy Z-Wave sensors to cloud platform using TLS-secured MQTT over ESP32 co-processor. IC Role / Device Role / Timing Role: Protocol translator and security enforcer-handles AES-128 encryption, certificate storage, and secure boot verification. Use Value: 96-bit unique ID and hardware CRC support cryptographic key derivation and firmware signature validation without external crypto IC. | Use Scenario: Low-cost BLDC motor starter board with Hall-effect feedback, PWM-driven gate drivers, and current sensing via shunt resistor. IC Role / Device Role / Timing Role: Real-time motion controller generating precise 3-phase PWM waveforms synchronized to Hall sensor edges. Use Value: Three 16-bit general-purpose timers with complementary PWM outputs and dead-time insertion enable direct drive of 3-phase inverter bridges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F030F4P6 | Cortex-M0 core, 48 MHz, 16 KB Flash, no VBAT RTC or temperature sensor | Lacks backup domain features and analog precision-suitable only for non-battery-backed, low-complexity control | Select when cost is primary constraint and RTC/temperature sensing are unnecessary |
| STM32F103TBU6 | Same package and pinout, but 128 KB Flash, 20 KB SRAM, and enhanced peripherals (CAN, higher ADC resolution) | Direct pin-compatible upgrade path-adds CAN bus support and larger memory for field-upgradable firmware | Choose for future-proofing where CAN or extended code space is anticipated |
Compared with STM32F030F4P6, STM32F101TBU6TR provides superior analog integration and battery-backed RTC; versus STM32F103TBU6, it trades Flash/SRAM capacity for lower BOM cost while retaining identical footprint and core timing behavior.
Availability
STM32F101TBU6TR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering interfaces, home automation gateways, and motor control starter kits requiring stable component supply and long-term manufacturability.
Supply support for STM32F101TBU6TR 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, specializing in microcontrollers, power management, MEMS, and automotive ICs.
The STM32F101x8/B series belongs to ST's medium-density access line-designed specifically for cost-optimized, low-power embedded applications demanding rich peripheral integration without premium feature sets.
FAQ
What is the maximum operating frequency and corresponding power supply range?
The STM32F101TBU6TR operates at up to 36 MHz with a supply voltage range of 2.0 V to 3.6 V. At 36 MHz, the device requires ≥2.7 V per electrical characteristics (Section 5.3.1); below that, maximum frequency scales linearly down to 24 MHz at 2.0 V. All I/Os remain 5 V-tolerant across this full voltage range.
Does this MCU support USB or CAN interfaces?
No, the STM32F101TBU6TR does not include USB or CAN peripherals. It provides 2×I²C, 3×USART, and 2×SPI for wired communication. For CAN support, ST recommends the pin-compatible STM32F103TBU6 variant, which adds a CAN 2.0B controller while maintaining identical UFQFPN48 packaging and core architecture.
How many ADC channels are available and what is their input voltage range?
The device integrates one 12-bit ADC with up to 16 external input channels plus internal temperature sensor and VREFINT. The ADC input voltage range is 0 to VDDA (up to 3.6 V), with dedicated VDDA and VSSA pins ensuring analog supply stability. Conversion time is fixed at 1 µs for all resolutions under standard conditions.
What debug interfaces are supported and what are the physical pin requirements?
STM32F101TBU6TR supports Serial Wire Debug (SWD) and JTAG via dedicated pins: SWDIO (PA13), SWCLK (PA14), and optional NRST. SWD requires only two signal pins plus ground-reducing debug header footprint versus full JTAG. No external pull-ups are needed; internal debug circuitry is enabled automatically upon connection to a compatible debugger (e.g., ST-LINK/V2).
STM32F101TBU6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 36-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:
- 26
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K 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:
STM32F101TBU6TR FAQ
1.How can I place an order for STM32F101TBU6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F101TBU6TR 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 STM32F101TBU6TR reliable?
The price and inventory of STM32F101TBU6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F101TBU6TR is usually 5 days.
3.What payment methods are accepted for STM32F101TBU6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F101TBU6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F101TBU6TR?
STM32F101TBU6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F101TBU6TR 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 STM32F101TBU6TR?
For technical support, including STM32F101TBU6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F101TBU6TR requirements.
6.How does Aetrix verify that STM32F101TBU6TR is sourced from the original manufacturer or authorized distributors?
All STM32F101TBU6TR 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 STM32F101TBU6TR meets industry standards.
7.What is the process for return or replacement of STM32F101TBU6TR?
All STM32F101TBU6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F101TBU6TR, 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 STM32F101TBU6TR part is unused and in its original packaging.
Return procedure for STM32F101TBU6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32F101TBU6TR Tags
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