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STMicroelectronics STM32F101T8U6TR
- Part No.:
- STM32F101T8U6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 36-VFQFN Exposed Pad
- Datasheet:
-
STM32F101T8U6TR.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 36VFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:4,387
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Product details
Overview
STM32F101T8U6TR from STMicroelectronics is a 32-bit ARM Cortex-M3 microcontroller in UFQFPN48 package, featuring 64 KB Flash, 10 KB SRAM, 36 MHz max CPU frequency, 12-bit ADC with 16 channels, and seven communication interfaces including up to 3 USARTs, 2 I²C, and 2 SPI. It targets cost-sensitive industrial control and sensor node applications requiring low-voltage operation (2.0–3.6 V) and integrated analog sensing.
For engineers reviewing the STM32F101T8U6TR datasheet, STM32F101T8U6TR pinout, STM32F101T8U6TR application, or STM32F101T8U6TR equivalent, key selection considerations include its 48-pin ultra-thin QFN footprint, 1 µs ADC conversion time, SWD/JTAG debug support, and compatibility within the STM32F101x8 medium-density access line for scalable firmware reuse.
Technical Context
This MCU implements the ARM Cortex-M3 core with Harvard architecture, single-cycle multiplication, and hardware divide, delivering 1.25 DMIPS/MHz at 36 MHz with zero-wait-state Flash execution. Its clock system integrates dual oscillators (8 MHz HSI, 32 kHz LSE), programmable PLL, and RTC calibration circuitry for precise timekeeping.
The peripheral set includes three 16-bit general-purpose timers with PWM/IC/OC capability, independent and window watchdogs, SysTick timer, and DMA supporting concurrent transfers across ADC, USART, SPI, and I²C - enabling deterministic real-time response without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 36 MHz max - enables deterministic real-time task scheduling with <1 µs interrupt latency |
| Flash Memory | 64 KB - sufficient for bootloader + application firmware with OTA update partitioning |
| SRAM | 10 KB - supports moderate stack depth, buffer queues, and sensor data aggregation |
| ADC Resolution | 12-bit, 1 µs conversion - resolves 0.88 mV steps over 3.6 V range for precision analog monitoring |
| I/O Count | 37 GPIO pins - all 5 V-tolerant except analog inputs, enabling direct interface with legacy logic |
| Communication Interfaces | Up to 3 USARTs, 2 I²C, 2 SPI - supports simultaneous RS-485, I²C sensor hub, and SPI flash storage |
| Debug Interface | SWD + JTAG - allows non-intrusive debugging and flash programming via standard ST-LINK probes |
| Supply Voltage | 2.0–3.6 V - compatible with single-cell Li-ion, 3.3 V LDOs, and energy-harvesting power supplies |
Pinout & Package
STM32F101T8U6TR uses the UFQFPN48 (7 × 7 mm, 0.5 mm pitch) ultra-thin quad flat no-lead package, optimized for space-constrained PCB layouts and automated reflow assembly. Thermal pad on underside enhances heat dissipation in continuous operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated analog/digital power rails with decoupling requirements per datasheet Section 5.1.6 |
| 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 with internal pull-up; requires external RC filter per Figure 28 |
| BOOT0 | Boot mode selection | High at power-up selects system memory bootloader; tied low for normal Flash execution |
| SWDIO / SWCLK | Serial Wire Debug interface | Two-pin debug channel replacing JTAG pins; enables full debug and programming with minimal footprint |
| VREF+, VREF− | Analog reference inputs | Enable precise ADC voltage scaling; VREF+ must be ≤ VDDA and ≥ 2.4 V |
| VBAT | Backup power supply | Connects to coin cell to retain RTC and backup registers during main power loss |
Key Features
| Feature | Design Value |
|---|---|
| Embedded CRC calculation unit | Hardware-accelerated checksum generation for firmware integrity verification and data packet validation |
| Temperature sensor | Integrated silicon diode with ±1.5°C accuracy - enables ambient temperature monitoring without external components |
| Programmable voltage detector (PVD) | Configurable threshold detection (2.2–2.9 V) - triggers interrupt or reset on brown-out before system instability |
| Low-power modes (Sleep/Stop/Standby) | Standby current as low as 2.3 µA - extends battery life in sensor wake-on-event applications |
| 96-bit unique ID | Factory-programmed serial number - supports secure device authentication and license binding |
| ECOPACK® RoHS-compliant packaging | Halogen-free, lead-free UFQFPN48 - meets industrial environmental compliance requirements |
Applications
| Industrial Sensor Node | Smart Meter Front-End |
|---|---|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ via I²C sensors and transmitting data via UART-to-LoRa module. IC Role / Device Role / Timing Role: Central controller managing sensor polling, ADC sampling, data formatting, and low-power sleep/wake cycles using RTC alarm. Use Value: Integrated 12-bit ADC and 37 GPIOs eliminate external signal conditioning; Standby current <3 µA enables >5-year battery life. | Use Scenario: Electricity meter measuring voltage/current waveforms and calculating kWh using isolated ADC inputs and pulse counting. IC Role / Device Role / Timing Role: Real-time waveform acquisition engine with precise 32.768 kHz RTC for billing timestamping and tamper detection logging. Use Value: Hardware CRC ensures firmware integrity against corruption; PVD prevents erroneous readings during grid voltage sags. |
| Home Automation Gateway | Motor Control Starter Kit |
Use Scenario: Zigbee-to-WiFi bridge aggregating ZLL sensor data and forwarding to cloud via ESP32 co-processor over UART. IC Role / Device Role / Timing Role: Protocol translation and buffer management unit with dual USARTs handling asynchronous traffic from both domains. Use Value: Three 16-bit timers enable precise UART baud rate generation and LED blink timing; 5 V-tolerant I/O simplifies level-shifting design. | Use Scenario: Brushless DC motor driver evaluation board using hall-effect feedback and PWM output to gate drivers. IC Role / Device Role / Timing Role: Motion control sequencer generating complementary PWM signals with dead-time insertion via TIM1 outputs. Use Value: Six timers include advanced-control-capable TIM1 with break input - supports safe shutdown on overcurrent fault detection. |
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, 4 KB SRAM, no USB, fewer peripherals | Limited to basic control tasks; lacks RTC calibration, temperature sensor, and advanced timers | Select when cost is primary constraint and full M3 feature set is unnecessary |
| STM32F103T8U6 | Same package and pinout; 128 KB Flash, 20 KB SRAM, enhanced peripherals (USB, CAN) | Supports USB device connectivity and CAN bus - suitable for host-interface or automotive diagnostics | Choose for future-proofing or when additional Flash/SRAM enables richer firmware features |
Compared with STM32F030F4P6, STM32F101T8U6TR delivers higher computational throughput and integrated analog features; versus STM32F103T8U6, it trades USB/CAN for lower cost and reduced power consumption in resource-constrained deployments.
Availability
STM32F101T8U6TR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart meter front-ends, home automation gateways, and motor control starter kits requiring stable component supply and long-term manufacturability.
Supply support for STM32F101T8U6TR 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 ICs, sensors, and analog devices for industrial, automotive, and consumer markets.
The STM32F101x8 product line targets cost-optimized, medium-density embedded applications demanding robust analog integration, low-power operation, and ARM Cortex-M3 performance without USB or CAN overhead.
FAQ
What is the maximum operating frequency of the STM32F101T8U6TR?
The STM32F101T8U6TR achieves a maximum CPU frequency of 36 MHz using its internal PLL, with zero wait states for Flash execution. This frequency is validated across the full temperature and voltage range (–40°C to +85°C, 2.0–3.6 V), and supports deterministic real-time behavior for time-critical control loops.
Does STM32F101T8U6TR support external memory expansion?
No, the STM32F101T8U6TR does not include an external memory interface (FSMC or similar). It relies solely on its embedded 64 KB Flash and 10 KB SRAM. For applications requiring larger code/data space, migration to STM32F103 or STM32F4 series with FSMC support is recommended.
Can the internal temperature sensor be used for system thermal monitoring?
Yes, the integrated temperature sensor provides calibrated output with ±1.5°C accuracy over –40°C to +85°C. It connects to ADC channel 16 and requires software calibration using the factory-provided calibration values stored at 0x1FFFF7AC and 0x1FFFF7C2 to achieve specified accuracy.
Is the UFQFPN48 package of STM32F101T8U6TR compatible with reflow soldering processes?
Yes, the UFQFPN48 package is qualified for standard lead-free reflow profiles (J-STD-020). Its 0.5 mm pitch and exposed thermal pad require controlled stencil thickness (125 µm) and precise alignment during PCB assembly to ensure reliable solder joint formation and thermal performance.
STM32F101T8U6TR 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:
- 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:
STM32F101T8U6TR FAQ
1.How can I place an order for STM32F101T8U6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F101T8U6TR 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 STM32F101T8U6TR reliable?
The price and inventory of STM32F101T8U6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F101T8U6TR is usually 5 days.
3.What payment methods are accepted for STM32F101T8U6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F101T8U6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F101T8U6TR?
STM32F101T8U6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F101T8U6TR 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 STM32F101T8U6TR?
For technical support, including STM32F101T8U6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F101T8U6TR requirements.
6.How does Aetrix verify that STM32F101T8U6TR is sourced from the original manufacturer or authorized distributors?
All STM32F101T8U6TR 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 STM32F101T8U6TR meets industry standards.
7.What is the process for return or replacement of STM32F101T8U6TR?
All STM32F101T8U6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F101T8U6TR, 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 STM32F101T8U6TR part is unused and in its original packaging.
Return procedure for STM32F101T8U6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32F101T8U6TR Tags
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