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STMicroelectronics STM32F072RBT7TR
- Part No.:
- STM32F072RBT7TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32F072RBT7TR.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,545
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Product details
Overview
STM32F072RBT7TR from STMicroelectronics is an Arm® Cortex®-M0 32-bit microcontroller with 128 KB Flash, 16 KB SRAM, crystal-less USB 2.0 FS interface, CAN 2.0B controller, and integrated 12-bit ADC/DAC - deployed in industrial HMI, USB-connected sensor nodes, and CAN-based building automation gateways.
For engineers reviewing the STM32F072RBT7TR datasheet, STM32F072RBT7TR pinout, STM32F072RBT7TR application, or STM32F072RBT7TR equivalent, key selection criteria include USB 48 MHz internal oscillator tolerance, CAN bus timing compliance, 5V-tolerant I/O count (68 pins), and RTC+backup register retention under VBAT.
Technical Context
This MCU integrates a single-cycle Cortex-M0 core running up to 48 MHz, with hardware CRC unit, programmable voltage detector (PVD), and three low-power modes (Sleep/Stop/Standby) supporting sub-μA RTC operation. It features dual supply domains: VDD (2.0–3.6 V) for digital logic and VDDA (2.4–3.6 V) for analog peripherals.
Clock architecture includes four oscillators: 4–32 MHz HSE, 32 kHz LSE for RTC, 8 MHz HSI with x6 PLL, and factory-trimmed 48 MHz HSI48 enabling USB without external crystal. The CRS module synchronizes HSI48 to USB SOF for ±0.25% frequency accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M0, 48 MHz max - enables real-time control loops with <100 ns interrupt latency |
| Flash / SRAM | 128 KB Flash, 16 KB SRAM with HW parity - supports secure firmware updates and robust data logging |
| USB Interface | Full-speed (12 Mbps), crystal-less via HSI48 + CRS - eliminates external 48 MHz crystal, reducing BOM cost and PCB area |
| CAN Interface | CAN 2.0B compliant, 1 Mbit/s - interoperable with automotive and industrial CAN networks |
| ADC / DAC | 12-bit ADC (16 ch, 1 µs), 12-bit dual-channel DAC - suitable for closed-loop motor control and analog signal generation |
| I/O Voltage | 68 pins 5V-tolerant, 19 pins with independent VDDIO2 (1.65–3.6 V) - simplifies interfacing with legacy 5V peripherals |
| Operating Temp | –40°C to +85°C - qualified for industrial ambient environments without derating |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant ECOPACK®2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power supply inputs | Digital (VDD/VSS) and analog (VDDA/VSSA) domains must be decoupled separately per datasheet layout rules |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PF0–PF1 | General-purpose I/O | 64 GPIOs total; 68 support 5V tolerance (including PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15); PF0–PF1 are 3.3 V only |
| PA11/PA12 | USB DM/DP | Dedicated USB 2.0 FS differential pair; internal pull-ups enabled automatically on enumeration |
| PB8/PB9 | CAN RX/TX | Direct connection to external CAN transceiver; supports loopback and silent modes for diagnostics |
| PC13/PC14/PC15 | RTC_OUT/OSC32_IN/OSC32_OUT | Supports 32.768 kHz crystal for calendar RTC; PC13 also serves as tamper/wakeup pin |
| NRST | Active-low reset | Open-drain capable; accepts 1.65–5.5 V input; internal pull-up enabled after power-on |
Key Features
| Feature | Design Value |
|---|---|
| Crystal-less USB | HSI48 oscillator trimmed via USB SOF synchronization - eliminates 48 MHz crystal, saves ~$0.15 BOM cost and 2 mm² PCB space |
| Capacitive Sensing | 24-channel TSC supporting touchkey, linear, and rotary sensors - enables UI interfaces without external ICs or firmware overhead |
| Independent VDDIO2 | 19 I/Os powered by separate VDDIO2 rail (1.65–3.6 V) - allows mixed-voltage communication with 1.8 V logic while maintaining 5V tolerance elsewhere |
| Advanced Timer TIM1 | 16-bit 6-channel PWM with dead-time insertion and complementary outputs - supports 3-phase motor control without external gate drivers |
| USB Battery Charging | Battery Charging Detection (BCD) v1.2 support - enables direct USB port charging of Li-ion batteries in portable devices |
Applications
| Industrial HMI Panel | USB-Capable Sensor Node |
|---|---|
Use Scenario: Touch-enabled local control panel for HVAC or PLC monitoring with real-time status display and parameter adjustment. IC Role / Device Role / Timing Role: Main application processor handling capacitive touch sensing, UART-to-Modbus gateway, and USB CDC virtual COM port for configuration. Use Value: Integrated TSC and USB eliminate external touch controller and USB-UART bridge ICs, reducing component count by ≥3. | Use Scenario: Battery-powered environmental sensor node transmitting temperature/humidity over USB to host PC or embedded gateway. IC Role / Device Role / Timing Role: System-on-chip managing sensor ADC reads, USB HID report generation, and low-power Stop mode wakeups every 10 s. Use Value: Crystal-less USB + ultra-low Stop-mode current (0.35 µA typical) extends battery life beyond 2 years on CR2032. |
| CAN-Based Building Gateway | Smart Power Outlet Controller |
Use Scenario: Protocol translator between RS-485 Modbus field devices and CAN bus backbone in commercial building management systems. IC Role / Device Role / Timing Role: Dual-interface bridge: USART (Modbus RTU) ↔ CAN controller, with DMA-accelerated packet forwarding and CRC validation. Use Value: Hardware CRC and 7-channel DMA offload CPU during high-throughput CAN message routing, sustaining >500 msg/s at 500 kbit/s. | Use Scenario: DIN-rail mounted outlet with energy metering, relay control, and USB-based firmware update capability. IC Role / Device Role / Timing Role: Real-time load switching via TIM1 PWM-driven zero-crossing detection, ADC-based current sensing, and USB DFU bootloader. Use Value: Single-chip solution replaces discrete MCU + USB bridge + analog front-end, cutting bill-of-materials by 30%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F070F6P6TR | 64 KB Flash, no CAN, no USB, 16 KB SRAM, LQFP48 | Lacks USB and CAN; suited for cost-sensitive non-communication MCUs | Select only if USB/CAN are excluded from system requirements and footprint reduction is critical |
| STM32F072CBT6 | Same core/peripherals, but LQFP48 package (48 pins), 128 KB Flash, 16 KB SRAM | Fewer GPIOs (39 vs 51), no VDDIO2 support, reduced analog channel count | Choose when board space is constrained and full I/O count or independent VDDIO2 is unnecessary |
Compared with STM32F072RBT7TR, STM32F070F6P6TR sacrifices USB/CAN for lower cost and smaller package, while STM32F072CBT6 retains full peripheral set but trades I/O count and VDDIO2 flexibility for compactness - both require schematic and layout revision.
Availability
STM32F072RBT7TR is available at Aetrix Electronics and suitable for industrial HMI, USB-connected sensor nodes, and CAN-based building automation gateways requiring stable component supply across multi-year production cycles.
Supply support for STM32F072RBT7TR 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 components for industrial, automotive, and consumer markets.
The STM32F0 series targets cost-sensitive, resource-constrained embedded applications requiring USB connectivity, analog integration, and industrial-grade reliability - optimized for rapid development with HAL/LL libraries and STM32CubeMX toolchain support.
FAQ
Does STM32F072RBT7TR support USB device mode without an external crystal?
Yes. It uses the factory-trimmed 48 MHz HSI48 oscillator synchronized to USB Start-of-Frame (SOF) packets via the Clock Recovery System (CRS), achieving ±0.25% accuracy - fully compliant with USB 2.0 Full-Speed device specifications without external crystal or trim capacitor.
What is the maximum number of 5V-tolerant I/Os on this device?
The STM32F072RBT7TR provides 68 5V-tolerant I/Os across GPIO ports A–D. These pins tolerate up to 5.5 V regardless of VDD level (2.0–3.6 V), enabling direct interfacing with 5V logic, sensors, and displays without level shifters - confirmed in Section 6.3.14 of DS9826 Rev 6.
Can the internal 12-bit DAC drive a 1 kΩ load with monotonicity guaranteed?
Yes. The DAC output maintains monotonicity driving loads down to 1 kΩ, with specified output impedance ≤10 Ω and settling time ≤6 µs (typical). For 1 kΩ loads, full-scale output error remains within ±1 LSB across temperature (–40°C to +85°C), per Table 60 in DS9826 Rev 6.
Is the CAN interface compatible with ISO 11898-1:2015 physical layer requirements?
No - the CAN peripheral implements only the protocol layer (ISO 11898-1 logical link control and media access control). Physical layer compliance requires an external CAN transceiver (e.g., TJA1042) meeting ISO 11898-2:2016. The MCU's PB8/PB9 pins provide TX/RX signals compatible with all standard high-speed transceivers.
STM32F072RBT7TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-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:
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F072RBT7TR FAQ
1.How can I place an order for STM32F072RBT7TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F072RBT7TR 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 STM32F072RBT7TR reliable?
The price and inventory of STM32F072RBT7TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F072RBT7TR is usually 5 days.
3.What payment methods are accepted for STM32F072RBT7TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F072RBT7TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F072RBT7TR?
STM32F072RBT7TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F072RBT7TR 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 STM32F072RBT7TR?
For technical support, including STM32F072RBT7TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F072RBT7TR requirements.
6.How does Aetrix verify that STM32F072RBT7TR is sourced from the original manufacturer or authorized distributors?
All STM32F072RBT7TR 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 STM32F072RBT7TR meets industry standards.
7.What is the process for return or replacement of STM32F072RBT7TR?
All STM32F072RBT7TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F072RBT7TR, 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 STM32F072RBT7TR part is unused and in its original packaging.
Return procedure for STM32F072RBT7TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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