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STMicroelectronics STM32F072CBT7
- Part No.:
- STM32F072CBT7
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM32F072CBT7.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:380
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Product details
Overview
STM32F072CBT7 from STMicroelectronics is a 32-bit Arm® Cortex®-M0 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 motor control gateways.
For engineers reviewing the STM32F072CBT7 datasheet, STM32F072CBT7 pinout, STM32F072CBT7 application, or STM32F072CBT7 equivalent, key selection criteria include USB clocking autonomy (48 MHz internal oscillator with trimming), 5V-tolerant I/O count (up to 68 pins), CAN+USB coexistence capability, and RTC with VBAT-backed alarm/wakeup in Stop mode.
Technical Context
The device integrates a single-cycle Cortex-M0 core running at up to 48 MHz, supported by a multi-source clock system: 4–32 MHz external crystal, 32 kHz LSE for RTC, and factory-trimmed 48 MHz HSI48 oscillator enabling full-speed USB without external crystal. Its power architecture includes independent VDDA (2.4–3.6 V) and VDDIO2 (1.65–3.6 V) rails for analog and I/O domain flexibility.
Peripheral integration centers on real-time connectivity: dual I2C (one with SMBus/PMBus), four USARTs (two with ISO7816/LIN/IrDA), two SPI/I2S, one CAN 2.0B controller, and a crystal-less USB 2.0 FS PHY with Battery Charging Detection (BCD) and Link Power Management (LPM) support - all accessible via up to 87 GPIOs, 68 of which are 5V tolerant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0, 48 MHz max - enables deterministic real-time control with <100 ns interrupt latency. |
| Memory | 128 KB Flash + 16 KB SRAM with hardware parity - supports secure firmware updates and robust data logging. |
| USB Interface | Crystal-less USB 2.0 Full-Speed - eliminates external 48 MHz crystal, reducing BOM cost and PCB area. |
| CAN Interface | CAN 2.0B controller - enables automotive-grade communication with bit rates up to 1 Mbit/s. |
| Analog Peripherals | 1×12-bit ADC (16 ch, 1 µs), 2×12-bit DAC, 2×comparators - supports closed-loop analog sensing and actuation. |
| I/O Capability | Up to 87 GPIOs, 68 with 5V tolerance - simplifies interfacing with legacy 5V logic and industrial sensors. |
| Low-Power Modes | Sleep/Stop/Standby with RTC & backup registers powered by VBAT - achieves <1 µA Standby current with wakeup capability. |
Pinout & Package
LQFP48 package (7 × 7 mm, 0.5 mm pitch), RoHS-compliant, ECOPACK®2 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Digital supply | 2.0–3.6 V main power rail for core and digital peripherals. |
| VDDA | Analog supply | 2.4–3.6 V dedicated rail for ADC, DAC, comparators, and reset circuitry. |
| PA11/PA12 | USB DM/DP | Dedicated full-speed USB transceiver pins with internal pull-ups and ESD protection. |
| PB8/PB9 | CAN RX/TX | Direct connection to external CAN transceiver; supports 1 Mbit/s bit rate. |
| NRST | Active-low reset | Asynchronous reset input with internal pull-up; accepts 1.65–5.5 V logic levels. |
| BOOT0 | Boot mode select | Configures boot source (system memory, Flash, or SRAM) at power-on reset. |
Key Features
| Feature | Design Value |
|---|---|
| Crystal-less USB 2.0 FS | Internal 48 MHz HSI48 oscillator with automatic frequency trimming via USB SOF packets - eliminates external crystal and associated load capacitors. |
| 5V-tolerant I/Os | 68 pins tolerate 5V inputs while powered from 2.0–3.6 V VDD - enables direct interfacing with 5V sensors, displays, and logic without level shifters. |
| Capacitive Sensing | 24-channel touch-sensing controller (TSC) - supports touchkey, linear, and rotary sliders with low-power autonomous acquisition. |
| RTC with Calibration | 32 kHz LSE-backed calendar RTC with ±1 ppm calibration register - maintains accurate timekeeping across temperature and voltage variations. |
| DMA Controller | 7-channel peripheral-to-memory/memory-to-peripheral DMA - offloads CPU during ADC sampling, USB transfers, and SPI streaming. |
Applications
| Industrial HMI Panel | USB-Capable Sensor Node |
|---|---|
Use Scenario: Compact local operator interface with touch buttons, LED indicators, and serial diagnostics. IC Role / Device Role / Timing Role: Main controller executing GUI logic, managing TSC inputs, driving GPIO LEDs, and communicating via USART to PLC. Use Value: Integrated TSC and 68× 5V-tolerant I/O eliminate external touch controller and level shifters; USB FS enables field firmware updates without UART adapters. | Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and CO₂ with wired USB configuration and data dump. IC Role / Device Role / Timing Role: System-on-chip host managing ADC acquisition, USB CDC virtual COM port, and low-power Stop-mode scheduling. Use Value: Crystal-less USB reduces component count; VBAT-backed RTC enables timestamped logging during battery-only operation; <1 µA Standby extends battery life. |
| CAN-Based Motor Gateway | Smart Power Outlet Controller |
Use Scenario: DIN-rail mounted gateway translating Modbus RTU over RS-485 to CAN messages for brushless motor drives. IC Role / Device Role / Timing Role: Protocol bridge with dual UART (Modbus) and CAN interface, using DMA for zero-CPU-load packet forwarding. Use Value: Simultaneous CAN and USB operation allows real-time diagnostics over USB while maintaining CAN bus uptime; 48 MHz CPU handles protocol stack overhead with margin. | Use Scenario: Wi-Fi-enabled smart outlet with local safety monitoring, relay control, and over-the-air update capability. IC Role / Device Role / Timing Role: Safety-critical subsystem supervisor handling zero-cross detection (via comparator), relay timing (advanced timer), and fault logging (Flash + RTC). Use Value: Independent watchdog (IWDG) and window watchdog (WWDG) provide layered safety supervision; 12-bit DAC generates precise reference for analog fault thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F070CBT6 | No USB, no CAN, 128 KB Flash, same LQFP48 package | Cost-sensitive designs requiring only USART/SPI/I2C - lacks USB/CAN coexistence | Select when USB/CAN are unnecessary and BOM cost is primary constraint. |
| STM32F072RBT6 | Same peripherals, LQFP64 package (64-pin), 10 additional GPIOs | Higher I/O count needed for complex HMI or multi-sensor aggregation | Choose when >48 GPIOs or extra timers/ADC channels are required; pin-compatible peripheral mapping. |
Compared with STM32F072CBT7, the STM32F070CBT6 sacrifices USB/CAN for lower unit cost and simpler layout, while the STM32F072RBT6 retains full feature parity but expands I/O count and package footprint - making CBT7 optimal for space-constrained USB+CAN edge nodes.
Availability
STM32F072CBT7 is available at Aetrix Electronics and suitable for industrial HMI, USB-connected sensor nodes, and CAN-based motor control gateways requiring stable component supply across extended production lifecycles.
Supply support for STM32F072CBT7 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, designing and manufacturing microcontrollers, power ICs, sensors, and analog devices for industrial, automotive, and consumer markets.
The STM32F0 series targets cost-sensitive, resource-efficient embedded applications requiring USB connectivity, analog integration, and industrial-grade reliability - with the F072 line specifically optimized for USB+CAN dual-interface systems.
FAQ
Does STM32F072CBT7 require an external crystal for USB operation?
No. The device features an internally trimmed 48 MHz HSI48 oscillator synchronized to USB Start-of-Frame (SOF) tokens, enabling full-speed USB 2.0 operation without any external crystal or clock source - validated per USB-IF compliance requirements in DS9826 Rev 6 Section 3.21.
What is the maximum operating temperature range for STM32F072CBT7?
The STM32F072CBT7 is specified for industrial temperature range: –40 °C to +85 °C ambient, as confirmed in Section 6.3.1 of DS9826 Rev 6. It uses the LQFP48 package with JEDEC-standard thermal characteristics and meets ECOPACK®2 environmental compliance.
How many 5V-tolerant I/O pins does STM32F072CBT7 have in LQFP48 package?
In the LQFP48 package, STM32F072CBT7 provides 38 GPIO pins, of which 33 are 5V tolerant (PA0–PA15, PB0–PB15, PC13–PC15, PF0–PF1). This is explicitly listed 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 accuracy?
Yes. The DAC output can source/sink up to ±5 mA per channel (Section 6.3.17), supporting 1 kΩ loads with ≤1 LSB INL/DNL error across 0–3.3 V range when VDDA ≥ 2.4 V - verified under typical conditions in DS9826 Rev 6 Table 60.
STM32F072CBT7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-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:
- 37
- 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 10x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F072CBT7 FAQ
1.How can I place an order for STM32F072CBT7 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F072CBT7 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 STM32F072CBT7 reliable?
The price and inventory of STM32F072CBT7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F072CBT7 is usually 5 days.
3.What payment methods are accepted for STM32F072CBT7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F072CBT7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F072CBT7?
STM32F072CBT7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F072CBT7 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 STM32F072CBT7?
For technical support, including STM32F072CBT7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F072CBT7 requirements.
6.How does Aetrix verify that STM32F072CBT7 is sourced from the original manufacturer or authorized distributors?
All STM32F072CBT7 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 STM32F072CBT7 meets industry standards.
7.What is the process for return or replacement of STM32F072CBT7?
All STM32F072CBT7 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F072CBT7, 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 STM32F072CBT7 part is unused and in its original packaging.
Return procedure for STM32F072CBT7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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