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STMicroelectronics STM32F072VBT6
- Part No.:
- STM32F072VBT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
STM32F072VBT6.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:7,705
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Product details
Overview
STM32F072VBT6 from STMicroelectronics is an Arm® Cortex®-M0 32-bit microcontroller operating at up to 48 MHz, featuring 128 KB Flash, 16 KB SRAM with hardware parity, crystal-less USB 2.0 Full-Speed interface, CAN 2.0B controller, and integrated 12-bit ADC/DAC. It targets embedded control applications requiring robust connectivity, low-power operation, and precise analog signal handling - such as industrial sensor nodes and USB-connected human interface devices.
For engineers reviewing the STM32F072VBT6 datasheet, STM32F072VBT6 pinout, STM32F072VBT6 application, or STM32F072VBT6 equivalent, key selection considerations include its internal 48 MHz oscillator with USB BCD/LPM support, 5V-tolerant I/Os (up to 68 pins), RTC with calibration, and dual-channel DAC for analog waveform generation.
Technical Context
The STM32F072VBT6 integrates a single-core Arm Cortex-M0 CPU with tightly coupled NVIC and SysTick timer, supporting deterministic real-time execution. Its clock system combines internal oscillators (HSI48 for USB, LSI for RTC/WDT) and external sources (4–32 MHz HSE, 32.768 kHz LSE), with automatic trimming of the 48 MHz oscillator via USB frame synchronization.
Peripheral integration includes a dedicated CAN 2.0B controller with 14 message filters and 3 transmission mailboxes, two I²C interfaces (one with SMBus/PMBus support), four USARTs (two with ISO7816, IrDA, LIN), and a 7-channel DMA controller enabling zero-CPU-overhead data transfers between peripherals and memory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0, 48 MHz max - enables real-time deterministic control with <10 ns interrupt latency. |
| Memory | 128 KB Flash + 16 KB SRAM with HW parity - supports secure firmware storage and ECC-protected RAM for safety-critical tasks. |
| USB Interface | Crystal-less USB 2.0 FS with BCD & LPM - eliminates external crystal, reduces BOM cost, and enables battery-powered suspend/resume. |
| Analog Peripherals | 12-bit ADC (16 ch, 1 µs), 12-bit DAC (2 ch), 2 comparators - enables closed-loop analog sensing and actuation without external converters. |
| Timers | 12 timers including TIM1 (6-ch PWM), TIM2/3/14–17, TIM6/7 - supports motor control, IR decoding, and precise PWM generation across multiple channels. |
| I/O Capability | Up to 87 fast I/Os; 68 with 5V tolerance - allows direct interfacing with legacy 5V logic and industrial sensors without level shifters. |
| Power Range | 2.0–3.6 V supply with VDDA = VDD to 3.6 V - simplifies power design by eliminating separate analog rail in many applications. |
Pinout & Package
LQFP100 (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad - optimized for thermal dissipation in compact industrial PCB layouts and compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Digital power supply and ground | Primary 2.0–3.6 V domain powering core, memories, and digital peripherals; requires local decoupling. |
| VDDA, VSSA | Analog power supply and ground | Shared rail with VDD (no separate analog regulator needed); must be filtered for ADC/DAC accuracy. |
| PA11/PA12 | USB DM/DP | Dedicated full-speed USB transceiver pins - internally terminated, require no external resistors when using crystal-less mode. |
| PD0/PD1 | CAN RX/TX | Direct connection to external CAN transceiver - supports high-noise industrial bus communication with programmable filter banks. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Configurable as GPIO, AF functions (USART/I²C/SPI/CAN), or capacitive touch inputs - all mappable to EXTI for wake-up events. |
Key Features
| Feature | Design Value |
|---|---|
| Crystal-less USB 2.0 FS | Eliminates 48 MHz crystal and matching capacitors, reducing component count and board area while maintaining ±0.25% USB timing accuracy. |
| Internal 48 MHz oscillator (HSI48) | Auto-trimmed via USB SOF frames - ensures stable USB operation without external clock source or calibration firmware. |
| Capacitive touch sensing (TSC) | 24-channel hardware-accelerated touch controller - enables robust button/slider/rotary implementations with noise immunity and low CPU overhead. |
| Programmable voltage detector (PVD) | Configurable threshold monitoring on VDD - triggers interrupt or reset before brown-out, protecting Flash writes and state integrity. |
| Low-power modes (Stop/Standby) | RTC + backup registers active in Stop mode (<1 µA); VBAT-supported Standby retains full context - ideal for battery-backed metering and alarm systems. |
Applications
| Industrial Sensor Node | USB Human Interface Device |
|---|---|
Use Scenario: Compact environmental monitor collecting temperature, humidity, and CO₂ via I²C sensors, logging data to internal Flash, and transmitting over USB to host PC. IC Role / Device Role / Timing Role: Central MCU managing sensor polling, ADC conversion, CRC-protected data storage, and USB CDC-class communication with host. Use Value: Integrated crystal-less USB and 12-bit ADC eliminate external components, reducing total solution size and BOM cost by >15% versus discrete alternatives. | Use Scenario: Programmable mechanical keyboard with RGB backlighting, N-key rollover, and firmware-upgradable key mapping via USB. IC Role / Device Role / Timing Role: Main controller executing HID report generation, capacitive touch scanning for media keys, and PWM-driven LED dimming. Use Value: 24-channel TSC and dual 12-bit DAC enable simultaneous touch detection and smooth LED current control - no external touch or LED drivers required. |
| Automotive Body Control Module | Smart Home Gateway |
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting, communicating via CAN bus with central ECU. IC Role / Device Role / Timing Role: CAN node processor handling message filtering, wakeup-on-CAN, and PWM motor control with fault detection. Use Value: CAN 2.0B controller with 14 filters and independent wakeup capability ensures reliable low-latency bus interaction without CPU polling. | Use Scenario: Zigbee-to-USB bridge aggregating sensor data from mesh network and exposing it to PC/cloud via virtual COM port. IC Role / Device Role / Timing Role: Protocol translator running dual-stack firmware (Zigbee stack + USB CDC), managing UART-to-USB bridging and power management. Use Value: Four USARTs (two with ISO7816/LIN/IrDA) and crystal-less USB allow concurrent Zigbee radio interface and host connectivity with minimal external circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F070F6P6 | 64 KB Flash, no CAN, no USB, 48-pin TSSOP - lacks USB and CAN interfaces, lower I/O count. | Suitable only for cost-sensitive, non-USB/non-CAN control tasks like simple appliance timers. | Select only if USB/CAN are unnecessary and footprint constraints favor TSSOP over LQFP. |
| STM32F072CBT6 | Same core/peripherals but LQFP48 package (48 pins) - reduced I/O count (39 vs 87), no VBAT pin, smaller Flash (128 KB same). | Applicable where board space is critical and fewer peripherals (e.g., no CAN, limited USB use) are needed. | Choose when pin count and board area are primary constraints, and full I/O/CAN/USB feature set is not required. |
Compared with STM32F072CBT6, the VBT6 offers 100-pin LQFP packaging with full I/O availability and VBAT support for RTC backup; versus STM32F070F6P6, it delivers essential USB/CAN connectivity and larger memory - making it the only choice for USB-enabled, CAN-connected embedded systems requiring field-upgradability and low-power retention.
Availability
STM32F072VBT6 is available at Aetrix Electronics and suitable for industrial sensor nodes, USB human interface devices, automotive body control modules, and smart home gateways requiring stable component supply across multi-year production cycles.
Supply support for STM32F072VBT6 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 products for industrial, automotive, and consumer markets.
The STM32F0 series targets cost-sensitive, resource-constrained embedded applications requiring high integration, low power, and USB/CAN connectivity - with the F072 line specifically optimized for crystal-less USB and analog-rich control systems.
FAQ
Does the STM32F072VBT6 require an external crystal for USB operation?
No. The device features an internal 48 MHz oscillator (HSI48) with automatic trimming synchronized to USB Start-of-Frame packets, enabling fully crystal-less USB 2.0 Full-Speed operation. This eliminates external crystal components and associated layout constraints while maintaining ±0.25% timing accuracy required for USB compliance.
What is the maximum number of 5V-tolerant I/O pins on the STM32F072VBT6?
The STM32F072VBT6 supports up to 68 5V-tolerant I/O pins across its LQFP100 package. These pins tolerate input voltages up to 5.5 V regardless of VDD level (2.0–3.6 V), enabling direct interfacing with legacy 5V logic, industrial sensors, and RS-232 transceivers without external level-shifting circuitry.
Can the STM32F072VBT6 operate in low-power modes while maintaining USB connectivity?
Yes. In Stop mode, the device maintains USB functionality via the USB low-power mode (LPM) feature, allowing the host to send L1 suspend/resume requests. The internal 48 MHz oscillator remains active during Stop mode to sustain USB link integrity, and wakeup can occur via USB events, CAN messages, or EXTI interrupts - all with sub-5 µs latency.
How does the capacitive touch sensing (TSC) peripheral differ from general-purpose GPIO-based touch solutions?
The integrated TSC peripheral provides hardware-accelerated charge-transfer measurement across up to 24 channels, with built-in noise filtering, spread-spectrum modulation, and autonomous scan sequencing. Unlike software-based GPIO solutions, it operates independently of the CPU, achieves >60 dB noise immunity, and supports linear sliders and rotary wheels with <1% linearity error - all without consuming Flash or RAM resources.
STM32F072VBT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-LQFP
- Series:
- STM32F0
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- CANbus, HDMI-CEC, I2C, IrDA, LINbus, SPI, UART/USART, USB
- 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 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F072VBT6 FAQ
1.How can I place an order for STM32F072VBT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F072VBT6 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 STM32F072VBT6 reliable?
The price and inventory of STM32F072VBT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F072VBT6 is usually 5 days.
3.What payment methods are accepted for STM32F072VBT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F072VBT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F072VBT6?
STM32F072VBT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F072VBT6 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 STM32F072VBT6?
For technical support, including STM32F072VBT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F072VBT6 requirements.
6.How does Aetrix verify that STM32F072VBT6 is sourced from the original manufacturer or authorized distributors?
All STM32F072VBT6 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 STM32F072VBT6 meets industry standards.
7.What is the process for return or replacement of STM32F072VBT6?
All STM32F072VBT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F072VBT6, 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 STM32F072VBT6 part is unused and in its original packaging.
Return procedure for STM32F072VBT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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