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STMicroelectronics STM32F301K8T6TR
- Part No.:
- STM32F301K8T6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
STM32F301K8T6TR.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,813
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Product details
Overview
STM32F301K8T6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 64 KB Flash, 16 KB SRAM, and integrated analog peripherals including 12-bit DAC, rail-to-rail comparators, operational amplifier, and 12-bit ADC (0.20 μs conversion). It operates from 2.0–3.6 V and supports capacitive touch sensing-used in motor control feedback loops, industrial sensor nodes, and compact HMI interfaces.
For engineers reviewing the STM32F301K8T6TR datasheet, STM32F301K8T6TR pinout, STM32F301K8T6TR application, or STM32F301K8T6TR equivalent, key selection criteria include its 72 MHz CPU with DSP extensions, dual 16-bit advanced timers with deadtime generation, 51 GPIOs (including 18 capacitive sensing channels), and full SWD/JTAG debug support for real-time firmware development.
Technical Context
The device implements an Arm Cortex-M4 core with single-cycle multiply and hardware divide, enabling deterministic real-time signal processing. Its analog subsystem integrates one 12-bit DAC channel (2.4–3.6 V analog supply), three ultra-fast comparators, and one programmable-gain operational amplifier-all accessible via dedicated pins and configurable through dedicated peripheral registers.
Timing architecture includes a 32-bit general-purpose timer with quadrature encoder input, two 16-bit advanced-control timers supporting complementary PWM outputs with programmable deadtime, and a calendar RTC with alarm and periodic wakeup from Stop/Standby modes-enabling precise motion control and low-power sensor wake-up scheduling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 72 MHz max - enables real-time DSP operations (e.g., motor FOC, audio filtering) without external coprocessor |
| Memory | 64 KB Flash + 16 KB SRAM - sufficient for closed-loop control firmware with floating-point math and sensor data buffering |
| ADC | 12-bit, 15-channel, 0.20 μs conversion - supports high-speed current sensing in BLDC motor drives |
| DAC | 1 × 12-bit channel, 2.4–3.6 V analog supply - generates precise reference voltages for analog front-end calibration |
| Op-Amp | 1 rail-to-rail PGA-capable op-amp, all terminals accessible - enables configurable gain stages for sensor signal conditioning |
| Timers | 9 timers including 1×32-bit GP, 1×16-bit advanced (6-PWM + deadtime), 3×16-bit GP - meets IEC 60730 Class B functional safety timing requirements |
| Capacitive Sensing | Up to 18 channels - supports multi-touch buttons, sliders, and rotary encoders in space-constrained HMI designs |
Pinout & Package
LQFP32 (7 × 7 mm, 0.8 mm pitch) package with 32-pin quad flat pack - optimized for compact industrial control modules and cost-sensitive consumer electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main digital power supply | 2.0–3.6 V input; powers core, memories, and digital I/O banks |
| VDDA | Analog power supply | 2.0–3.6 V dedicated supply for ADC, DAC, COMP, OPAMP - critical for analog accuracy |
| PA0 | GPIO / ADC1_IN0 / TIM2_CH1 | Primary analog input for current/voltage sensing; also serves as timer capture input for RPM measurement |
| PA1 | GPIO / ADC1_IN1 / TIM2_CH2 | Secondary analog input; paired with PA0 for differential measurements or dual-sensor acquisition |
| PA4 | GPIO / DAC_OUT1 | Direct output of 12-bit DAC - drives reference voltage for precision comparator thresholds |
| PA7 | GPIO / COMP1_OUT / TIM1_CH1N | Comparator output routed to advanced timer for hardware-triggered PWM shutdown on overcurrent |
| PA15 | GPIO / JTDI / SPI3_NSS | Debug interface pin (JTAG TDI); also usable as SPI slave select in production mode |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts external push-button or supervisor IC assertion |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Gain Op-Amp | Configurable gain (1–16×) with external resistors - eliminates need for discrete instrumentation amp in sensor front-ends |
| Advanced-Control Timer (TIM1) | 6-channel complementary PWM with programmable deadtime and emergency stop - essential for 3-phase inverter gate driving |
| Capacitive Touch Controller (TSC) | Hardware-accelerated acquisition across 18 channels - reduces CPU load during touch polling in battery-powered devices |
| Temperature Sensor | Calibrated on-chip sensor (±1.5°C accuracy) - enables thermal derating in motor drivers without external thermistor |
| Independent Watchdog (IWDG) | 40 kHz LSI-based timeout (0.1–512 ms range) - provides fail-safe reset independent of main clock domain |
Applications
| Motor Control Interface | Industrial Sensor Node |
|---|---|
Use Scenario: Compact BLDC motor driver board with current sensing, PWM generation, and thermal monitoring. IC Role / Device Role / Timing Role: Main controller executing Field-Oriented Control (FOC) algorithm, generating synchronized 3-phase PWM with deadtime, and sampling phase currents via ADC. Use Value: Integrated op-amp conditions shunt voltage; comparators enable fast overcurrent shutdown; 72 MHz CPU handles real-time PI loops at 20 kHz update rate. | Use Scenario: Battery-powered vibration and temperature monitor deployed in predictive maintenance systems. IC Role / Device Role / Timing Role: Low-power system-on-chip managing accelerometer data acquisition, local FFT preprocessing, and RTC-triggered wireless transmission. Use Value: 18-capacitive-sensing channels unused; instead leveraged for proximity detection; Stop mode consumes only 1.7 μA (typ) with RTC active. |
| Touch-Based HMI | Power Supply Monitor |
Use Scenario: Appliance control panel with slider, rotary encoder, and touch keys replacing mechanical buttons. IC Role / Device Role / Timing Role: Dedicated touch controller interfacing directly to electrodes; manages debouncing, baseline tracking, and gesture recognition. Use Value: Hardware TSC engine offloads CPU; supports up to 18 electrodes in 5 mm² PCB area; immunity to moisture validated per IEC 61000-4-6. | Use Scenario: AC/DC adapter with real-time input voltage monitoring, output regulation feedback, and brown-out protection. IC Role / Device Role / Timing Role: System supervisor measuring VAC rectified voltage via ADC, controlling optocoupler feedback loop, and asserting fault signals via GPIO. Use Value: Programmable voltage detector (PVD) triggers interrupt at 2.5 V threshold; DAC outputs reference for isolated error amplifier; 12-bit ADC resolves 10 mV steps at 3.3 V scale. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F302K8T6 | Includes CCM RAM (8 KB), higher ADC resolution (12-bit with hardware oversampling), no TSC | Better suited for high-precision analog acquisition; lacks capacitive touch capability | Select when analog measurement fidelity outweighs touch interface needs |
| STM32F072KBT6 | Cortex-M0 core, 128 KB Flash, no FPU, no op-amp or comparators, 10-bit ADC | Lower-cost option for basic control tasks without analog signal conditioning | Select for cost-sensitive applications requiring only GPIO, UART, and basic PWM |
Compared with STM32F302K8T6, this part trades CCM RAM and oversampling for integrated touch sensing and analog front-end flexibility; compared with STM32F072KBT6, it delivers significantly higher computational throughput and hardware-assisted analog signal chain control-making it optimal for mixed-signal edge devices where both processing and precision analog coexist.
Availability
STM32F301K8T6TR is available at Aetrix Electronics and suitable for motor control interfaces, industrial sensor nodes, touch-based HMIs, and power supply monitors requiring stable component supply across long-lifecycle industrial programs.
Supply support for STM32F301K8T6TR 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, sensors, and automotive ICs.
This device belongs to the STM32F3 series-designed specifically for cost-effective, analog-intensive embedded applications requiring real-time control, precision signal conditioning, and human-machine interaction in space-constrained environments.
FAQ
What is the maximum operating frequency and supported voltage range?
The STM32F301K8T6TR operates at up to 72 MHz using its internal PLL and supports a VDD supply range of 2.0 V to 3.6 V. The VDDA analog supply must be within 2.0–3.6 V and may be independently regulated to minimize noise coupling into ADC/DAC circuits. Absolute maximum ratings specify 4.0 V on any pin except VDD/VDDA.
Does this MCU support hardware-accelerated capacitive touch sensing?
Yes-it integrates a dedicated Touch Sensing Controller (TSC) supporting up to 18 capacitive sensing channels with built-in charge transfer, benchmarking, and auto-calibration logic. It enables robust touchkey, linear slider, and rotary encoder implementations without external components or CPU overhead, validated per IEC 61000-4-6 for conducted immunity.
Can the operational amplifier be configured as a programmable-gain amplifier?
Yes-the single rail-to-rail op-amp supports PGA mode with externally configurable gain (1×, 2×, 3×, 4×, 8×, 16×) using standard resistor networks. All op-amp terminals (VIN+, VIN−, VOUT) are exposed on dedicated pins, allowing direct connection to external feedback components and sensor bridges.
What debug interfaces are available and how are they accessed?
It supports Serial Wire Debug (SWD) and full JTAG via dedicated pins (SWDIO, SWCLK, JTCK, JTDI, JTMS, JTDO). SWD is enabled by default after reset and requires only two pins; JTAG is activated by pulling JTDO high during reset. Both interfaces support real-time tracing, flash programming, and breakpoint debugging using ST-LINK v2/v3 probes.
STM32F301K8T6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 32-LQFP
- Series:
- STM32F3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 72MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 25
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 8x12b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F301K8T6TR FAQ
1.How can I place an order for STM32F301K8T6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F301K8T6TR 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 STM32F301K8T6TR reliable?
The price and inventory of STM32F301K8T6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F301K8T6TR is usually 5 days.
3.What payment methods are accepted for STM32F301K8T6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F301K8T6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F301K8T6TR?
STM32F301K8T6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F301K8T6TR 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 STM32F301K8T6TR?
For technical support, including STM32F301K8T6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F301K8T6TR requirements.
6.How does Aetrix verify that STM32F301K8T6TR is sourced from the original manufacturer or authorized distributors?
All STM32F301K8T6TR 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 STM32F301K8T6TR meets industry standards.
7.What is the process for return or replacement of STM32F301K8T6TR?
All STM32F301K8T6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F301K8T6TR, 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 STM32F301K8T6TR part is unused and in its original packaging.
Return procedure for STM32F301K8T6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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