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STMicroelectronics STM32F071VBT6TR
- Part No.:
- STM32F071VBT6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
STM32F071VBT6TR.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:9,379
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Product details
Overview
STM32F071VBT6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M0 microcontroller in LQFP100 package, operating up to 48 MHz with 128 KB Flash, 16 KB SRAM (HW parity), and integrated peripherals including dual 12-bit DAC, 12-bit ADC (16-channel, 1.0 µs), and RTC with calendar. It serves as main system controller in industrial HMI panels requiring low-power operation, analog signal conditioning, and multi-interface connectivity.
For engineers reviewing the STM32F071VBT6TR datasheet, STM32F071VBT6TR pinout, STM32F071VBT6TR application, or STM32F071VBT6TR equivalent, key selection criteria include its 48 MHz CPU clock, VDDIO2 support for mixed-voltage I/O (1.65–3.6 V), 68 5V-tolerant pins, HDMI CEC interface, and SWD debug capability - all critical for cost-sensitive, space-constrained embedded control designs.
Technical Context
The device integrates an Arm Cortex-M0 core with tightly coupled NVIC, CRC unit, and programmable voltage detector (PVD) for robust system supervision. Its clock system combines four internal oscillators (HSI8/HSI14/HSI48/LSI) and external crystal support (4–32 MHz HSE + 32 kHz LSE), enabling precise timing for RTC, USB-less CEC, and auto-trimmed 48 MHz HSI48 for consistent peripheral timing.
Peripheral architecture includes a 7-channel DMA controller, two independent 12-bit DAC channels with configurable output buffers, and a 12-bit ADC with dedicated analog supply (2.4–3.6 V) and built-in temperature sensor/VREFINT. The TSC supports up to 24 capacitive sensing channels, while TIM1 provides six-channel PWM for motor control or LED dimming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0, 48 MHz max - enables real-time deterministic execution for control loops and protocol stacks. |
| Memory | 128 KB Flash + 16 KB SRAM with hardware parity - supports secure firmware storage and reliable runtime data handling. |
| Analog Peripherals | 1× 12-bit ADC (16 ch, 1.0 µs), 2× 12-bit DAC, 2× analog comparators - enables closed-loop analog control without external converters. |
| Digital I/O | Up to 87 fast I/Os; 68 5V-tolerant, 19 with independent VDDIO2 supply - simplifies interfacing with legacy 5V logic and mixed-voltage subsystems. |
| Communication | 4× USART (2 with ISO7816/LIN/IrDA), 2× I2C (Fast Mode Plus), 2× SPI (18 Mbit/s), HDMI CEC - covers industrial serial, smart-card, and consumer IR protocols. |
| Power Management | 2.0–3.6 V VDD, 1.65–3.6 V VDDIO2, Sleep/Stop/Standby modes - achieves <100 nA Standby current with RTC active for battery-backed applications. |
| Clock Sources | Internal HSI48 (auto-trimmed), HSE (4–32 MHz), LSE (32.768 kHz), LSI - eliminates need for external crystals in many timing-critical functions. |
Pinout & Package
LQFP100 package (14 × 14 mm, 0.5 mm pitch), RoHS-compliant and ECOPACK®2 certified, suitable for automated SMT assembly and industrial thermal cycling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power and ground rails | Separate digital/analog supplies ensure noise isolation for precision ADC/DAC operation. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15, PF0–PF1 | General-purpose I/O banks | All support external interrupt; up to 68 pins are 5V-tolerant, enabling direct connection to 5V peripherals. |
| NRST | Active-low reset input | Accepts 1.65–3.6 V logic; internal pull-up ensures reliable power-on reset without external components. |
| BOOT0 | Boot mode selection | High at power-up selects system memory bootloader; used for field firmware recovery via USART. |
| SWDIO / SWCLK | Serial Wire Debug interface | Two-pin debug port supports full programming, tracing, and real-time variable inspection during development. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive Sensing Controller (TSC) | 24-channel touch sensing with hardware-accelerated acquisition - enables robust touchkey/slider/rotary interfaces without CPU overhead. |
| Advanced-Control Timer (TIM1) | Six-channel complementary PWM with dead-time insertion - supports three-phase motor control and digital power supply regulation. |
| HDMI CEC Interface | Dedicated hardware block with header detection and wakeup - allows low-power remote control interoperability in consumer electronics gateways. |
| Programmable Voltage Detector (PVD) | Configurable threshold (2.2–2.9 V in steps) with interrupt generation - enables early brown-out warning and graceful shutdown before supply collapse. |
| Temperature Sensor & VREFINT | Calibrated on-chip temperature sensor (±1.5°C accuracy) and internal 1.2 V reference - eliminates need for external sensors in thermal monitoring and ADC calibration. |
Applications
| Industrial HMI Panel | Smart Energy Meter |
|---|---|
Use Scenario: Touch-enabled local operator interface for PLC-controlled machinery with display, buttons, and status LEDs. IC Role / Device Role / Timing Role: Main application processor managing GUI rendering, capacitive touch decoding, UART communication with PLC, and PWM-driven backlight dimming. Use Value: Integrated TSC and TIM1 eliminate external touch controller and LED driver ICs; 5V-tolerant I/O simplifies connection to legacy panel components. | Use Scenario: Residential electricity meter with pulse counting, LCD display, RS-485 communication, and tamper detection. IC Role / Device Role / Timing Role: System-on-chip controller executing metrology algorithms, driving LCD via GPIO, and managing isolated RS-485 transceiver via USART. Use Value: Dual DAC outputs enable precise analog test signals for self-calibration; RTC with alarm supports time-of-use tariff switching. |
| Home Appliance Control Board | IoT Gateway Node |
Use Scenario: Washing machine main board coordinating motor drive, water valve control, temperature sensing, and user interface. IC Role / Device Role / Timing Role: Central MCU orchestrating PWM motor control (TIM1), ADC-based NTC reading, and capacitive touch panel (TSC). Use Value: Hardware CRC unit validates firmware updates over UART; standby current <100 nA enables battery backup for clock/calendar during mains failure. | Use Scenario: Wireless bridge aggregating Zigbee/Z-Wave sensors and forwarding data via Wi-Fi or cellular modem. IC Role / Device Role / Timing Role: Protocol translation hub using multiple USARTs (ISO7816 for SIM, IrDA for legacy remotes) and SPI for flash storage. Use Value: HDMI CEC hardware block enables unified remote control of connected AV devices; SWD debug supports field firmware patching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F072VBT6 | Same package and pinout; adds USB 2.0 FS device interface and CRC accelerator; no HDMI CEC. | Required where USB device connectivity (e.g., HID keyboard/mouse emulation) is needed instead of CEC. | Select when USB host/device functionality outweighs CEC requirement; verify PCB layout compatibility for USB routing. |
| STM32F091VCT6 | LQFP100, 256 KB Flash, 32 KB SRAM, same peripherals plus CAN 2.0B; higher memory and added CAN interface. | Suitable for automotive body control modules or industrial networks requiring CAN bus integration. | Choose for CAN-based distributed control systems; note larger Flash/SRAM increases BOM cost and power in idle states. |
Compared with STM32F072VBT6, this part trades USB for HDMI CEC - ideal for consumer IR ecosystems; versus STM32F091VCT6, it offers lower cost and power for non-CAN applications while retaining identical footprint and toolchain compatibility.
Availability
STM32F071VBT6TR is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, home appliance control boards, and IoT gateway nodes requiring stable component supply across multi-year production cycles.
Supply support for STM32F071VBT6TR 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 analog products for industrial, automotive, and consumer markets.
The STM32F0 series targets cost-sensitive, low-power embedded applications requiring high integration and robust real-time performance - optimized for appliance control, industrial automation, and human-machine interface solutions.
FAQ
What is the maximum operating frequency and supported voltage range?
The STM32F071VBT6TR operates at up to 48 MHz CPU frequency with a digital supply voltage (VDD) range of 2.0 V to 3.6 V and analog supply (VDDA) matching VDD up to 3.6 V. Its I/Os support 5V tolerance on 68 pins, and selected I/O banks accept independent VDDIO2 supply from 1.65 V to 3.6 V - enabling flexible interfacing with mixed-voltage subsystems without level shifters.
Does this MCU support hardware-based capacitive touch sensing?
Yes, the STM32F071VBT6TR integrates a dedicated Touch Sensing Controller (TSC) supporting up to 24 capacitive sensing channels. It provides hardware-accelerated acquisition, spread-spectrum modulation, and automatic recalibration - enabling robust touchkey, linear slider, and rotary encoder implementations without consuming CPU cycles or requiring external components.
What debug interface does the STM32F071VBT6TR provide?
The device features Serial Wire Debug (SWD) interface using two pins - SWDIO and SWCLK - supporting full JTAG-like debugging capabilities including breakpoints, watchpoints, memory inspection, and real-time variable monitoring. It does not include JTAG TAP; SWD is the standard debug method for STM32F0-series MCUs and is compatible with ST-LINK v2/v3 and third-party debug probes.
Is there a hardware CEC interface, and what is its functional scope?
Yes, the STM32F071VBT6TR includes a dedicated HDMI Consumer Electronics Control (CEC) peripheral. It supports header detection, message reception/transmission, automatic address arbitration, and wakeup-on-CEC-header - enabling seamless remote control interoperability between TVs, soundbars, and set-top boxes without external CEC transceivers or software bit-banging.
STM32F071VBT6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-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:
- 87
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 3.6V
- Data Converters:
- A/D 19x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F071VBT6TR FAQ
1.How can I place an order for STM32F071VBT6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F071VBT6TR 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 STM32F071VBT6TR reliable?
The price and inventory of STM32F071VBT6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F071VBT6TR is usually 5 days.
3.What payment methods are accepted for STM32F071VBT6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F071VBT6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F071VBT6TR?
STM32F071VBT6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F071VBT6TR 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 STM32F071VBT6TR?
For technical support, including STM32F071VBT6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F071VBT6TR requirements.
6.How does Aetrix verify that STM32F071VBT6TR is sourced from the original manufacturer or authorized distributors?
All STM32F071VBT6TR 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 STM32F071VBT6TR meets industry standards.
7.What is the process for return or replacement of STM32F071VBT6TR?
All STM32F071VBT6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F071VBT6TR, 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 STM32F071VBT6TR part is unused and in its original packaging.
Return procedure for STM32F071VBT6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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