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STMicroelectronics STM32F072RBT6
- Part No.:
- STM32F072RBT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32F072RBT6.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,558
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Product details
Overview
STM32F072RBT6 from STMicroelectronics is an Arm® Cortex®-M0 32-bit MCU operating up to 48 MHz, featuring 128 KB Flash, 16 KB SRAM with hardware parity, crystal-less USB 2.0 Full-Speed interface, and integrated CAN 2.0B controller. It delivers deterministic real-time control in industrial HMI, smart sensor nodes, and USB-connected embedded gateways.
For engineers reviewing the STM32F072RBT6 datasheet, STM32F072RBT6 pinout, STM32F072RBT6 application, or STM32F072RBT6 equivalent, key selection criteria include its internal 48 MHz oscillator with USB BCD/LPM support, 5V-tolerant GPIOs (68 pins), dual 12-bit DAC channels, 12-bit ADC with 16 inputs and 1 µs conversion, and RTC with calendar and wakeup from Stop/Standby modes.
Technical Context
This MCU integrates a single-cycle Cortex-M0 core with NVIC, CRC unit, and memory protection unit (MPU). Its clock system combines internal oscillators-including 48 MHz HSI48 trimmed via USB SOF-and external 4–32 MHz HSE and 32 kHz LSE for precise RTC operation.
The peripheral set includes two I²C interfaces (one with SMBus/PMBus), four USARTs (two with ISO7816, LIN, IrDA), two SPI/I²S modules, one advanced-control timer (TIM1) for six-channel PWM, and a capacitive touch sensing controller supporting up to 24 channels-enabling direct integration into touch-enabled industrial panels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0, 48 MHz max - enables deterministic real-time task scheduling without cache latency. |
| Flash / SRAM | 128 KB Flash, 16 KB SRAM with HW parity - supports robust firmware storage and runtime data integrity checking. |
| USB Interface | Crystal-less USB 2.0 FS with BCD & LPM - eliminates external crystal, reduces BOM cost and PCB area for portable devices. |
| ADC | 12-bit, 1 µs conversion, 16-channel - suitable for fast analog monitoring in motor control feedback loops. |
| DAC | Two 12-bit DAC channels - enables simultaneous analog waveform generation or reference voltage synthesis. |
| CAN Interface | CAN 2.0B compliant - provides deterministic, fault-tolerant communication for industrial fieldbus and automotive subsystems. |
| I/O Voltage Tolerance | 68 pins 5V tolerant - simplifies level-shifting design when interfacing with legacy 5V peripherals. |
| Supply Range | VDD = 2.0–3.6 V, VDDA = VDD–3.6 V - allows single-supply operation while maintaining ADC/DAC accuracy. |
Pinout & Package
LQFP64 package (10 × 10 mm, 0.5 mm pitch), RoHS-compliant ECOPACK®2, with 51 general-purpose I/Os (68 total I/Os across all packages; RBT6 variant has 51 accessible in LQFP64).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Digital power supply / ground | Primary 2.0–3.6 V domain powering CPU, memories, and digital peripherals. |
| VDDA, VSSA | Analog power supply / ground | Independent 2.4–3.6 V analog domain isolates ADC/DAC/comp from digital noise. |
| PA11/PA12 | USB DM/DP | Dedicated full-speed USB transceiver pins with internal termination and pull-up control. |
| PA13/PA14 | SWDIO/SWCLK | Two-pin Serial Wire Debug interface - enables non-intrusive programming and real-time tracing. |
| NRST | Active-low reset input | Asynchronous reset pin with internal pull-up; accepts external push-button or supervisor IC assertion. |
| BOOT0 | Boot mode selection | High at power-on forces boot from system memory (ROM bootloader); used for field firmware recovery. |
Key Features
| Feature | Design Value |
|---|---|
| Crystal-less USB 2.0 FS | Internal 48 MHz HSI48 oscillator auto-trimmed via USB SOF packets - eliminates external crystal and associated layout constraints. |
| Capacitive Touch Sensing | 24-channel TSC with built-in charge transfer and spread-spectrum modulation - enables robust touchkey/slider/rotary control without external ICs. |
| Low-Power Modes | Sleep, Stop (2.3 µA), Standby (0.5 µA) with RTC/VBAT backup - extends battery life in always-on sensor endpoints. |
| Programmable Voltage Detector | PVD with 4-level threshold selection (2.0–2.9 V) - triggers interrupt or reset on brown-out before critical logic failure. |
| Independent Watchdog | IWDG with 40 kHz LSI clock and windowed timeout - ensures fail-safe recovery in safety-critical control loops. |
| Hardware CRC Unit | 32-bit polynomial engine (CRC-32, CRC-16, CRC-CCITT) - accelerates firmware signature verification and data packet integrity checks. |
Applications
| Industrial HMI Panel | USB-Capable Sensor Gateway |
|---|---|
Use Scenario: Local operator interface for PLC-controlled machinery with touch buttons and status LEDs. IC Role / Device Role / Timing Role: Main controller executing GUI logic, managing capacitive touch inputs, driving LED indicators, and communicating via CAN to field devices. Use Value: Integrated TSC eliminates external touch controller; CAN + USB enables dual-network connectivity for local HMI and remote diagnostics. | Use Scenario: Battery-powered environmental sensor node aggregating temperature, humidity, and CO₂ data for cloud upload via USB host. IC Role / Device Role / Timing Role: Data concentrator with ADC sampling, low-power RTC timestamping, and crystal-less USB enumeration for plug-and-play host recognition. Use Value: HSI48-based USB removes crystal dependency; Stop-mode current of 2.3 µA extends 10-year battery life with periodic wakeups. |
| Automotive Body Control Module | Smart Power Outlet Controller |
Use Scenario: Door module managing window lift, mirror adjustment, and interior lighting via LIN and CAN. IC Role / Device Role / Timing Role: Real-time actuator driver using TIM1 for synchronized PWM motor control and USART-LIN transceiver for body network communication. Use Value: Six-channel advanced timer enables precise bidirectional motor control; LIN-capable USART reduces component count vs discrete transceivers. | Use Scenario: DIN-rail mounted outlet with energy metering, relay control, and USB configuration port. IC Role / Device Role / Timing Role: System-on-chip handling AC voltage/current sampling (ADC), zero-cross detection (comparators), relay timing (TIM2–TIM7), and USB parameter setup. Use Value: Dual comparators with programmable hysteresis enable accurate zero-cross detection; 12-bit DAC generates precision reference for metrology ADC calibration. |
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, 16 KB SRAM - lacks crystal-less USB and CAN transceiver. | Suitable only for cost-sensitive, non-networked control where USB/CAN are unnecessary. | Select only if USB/CAN functionality is excluded from system architecture and BOM cost is primary constraint. |
| STM32F072CBT6 | Same core/peripherals but in LQFP48 package (48 pins) - 13 fewer GPIOs and no VBAT pin; identical electrical specs. | Applicable where board space is constrained and I/O count ≤ 39 suffices. | Choose for compact designs accepting reduced I/O count and missing RTC battery backup capability. |
Compared with STM32F072RBT6, the F070F6P6 omits critical connectivity features (USB/CAN), limiting it to isolated control; the F072CBT6 retains full functionality but sacrifices I/O count and VBAT support-making RBT6 optimal for feature-complete, battery-backed USB/CAN edge nodes.
Availability
STM32F072RBT6 is available at Aetrix Electronics and suitable for industrial HMI, USB sensor gateways, and automotive body control modules requiring stable component supply across multi-year production cycles.
Supply support for STM32F072RBT6 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, specializing in microcontrollers, power management, sensors, and automotive ICs.
The STM32F0 series targets cost-sensitive, resource-constrained embedded applications demanding high integration, low power, and industrial-grade reliability - optimized for industrial control, appliance, and IoT endpoint designs.
FAQ
Does STM32F072RBT6 support USB device mode without an external crystal?
Yes. It integrates an internal 48 MHz HSI48 oscillator with automatic trimming based on USB Start-of-Frame (SOF) packets, enabling full-speed USB 2.0 device operation without external crystal or resonator - validated per USB-IF compliance tests in DS9826 Rev 6 Section 3.21.
What is the maximum number of 5V-tolerant I/Os on the LQFP64 package?
The STM32F072RBT6 in LQFP64 exposes 51 general-purpose I/Os, of which 41 are 5V tolerant (all except PA13, PA14, PB3, PB4, and BOOT0). This is confirmed in Table 14 (Pin Definitions) and Section 3.7 of DS9826 Rev 6.
Can the internal 12-bit DAC drive a 1 kΩ load with full-scale linearity?
No. The DAC output drives loads ≥ 5 kΩ with guaranteed monotonicity and ±1 LSB INL/DNL. Driving 1 kΩ causes gain error and distortion due to limited output current (±5 mA typical); an external buffer amplifier is required for low-impedance loads per Section 6.3.17.
Is the RTC battery-backed in STM32F072RBT6, and what pins enable this?
Yes. The RTC and 42-byte backup registers retain state during main power loss using VBAT (pin 11 in LQFP64). VBAT must be supplied by a coin cell or supercapacitor; the internal VBAT regulator powers the RTC domain independently - detailed in Section 3.5.3 and Table 14 of DS9826 Rev 6.
STM32F072RBT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-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:
- 51
- 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 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F072RBT6 FAQ
1.How can I place an order for STM32F072RBT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F072RBT6 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 STM32F072RBT6 reliable?
The price and inventory of STM32F072RBT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F072RBT6 is usually 5 days.
3.What payment methods are accepted for STM32F072RBT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F072RBT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F072RBT6?
STM32F072RBT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F072RBT6 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 STM32F072RBT6?
For technical support, including STM32F072RBT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F072RBT6 requirements.
6.How does Aetrix verify that STM32F072RBT6 is sourced from the original manufacturer or authorized distributors?
All STM32F072RBT6 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 STM32F072RBT6 meets industry standards.
7.What is the process for return or replacement of STM32F072RBT6?
All STM32F072RBT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F072RBT6, 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 STM32F072RBT6 part is unused and in its original packaging.
Return procedure for STM32F072RBT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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