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STMicroelectronics STM32G071CBU7
- Part No.:
- STM32G071CBU7
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-UFQFN Exposed Pad
- Datasheet:
-
STM32G071CBU7.pdf
- Description:
- IC MCU 32BIT 128KB FLSH 48UFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:3,706
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Product details
Overview
STM32G071CBU7 from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller with 128 KB Flash, 36 KB SRAM, dual 12-bit DACs, 12-bit ADC (0.4 µs conversion), and USB Type-C™ Power Delivery controller - deployed in industrial sensor nodes, smart metering front-ends, and low-power HMI control modules.
For engineers reviewing the STM32G071CBU7 datasheet, STM32G071CBU7 pinout, STM32G071CBU7 application, or STM32G071CBU7 equivalent, key selection criteria include its 64 MHz max CPU frequency, 1.7–3.6 V supply range, -40°C to 125°C extended temperature grade, 60 fast I/Os (including 5 V-tolerant), and integrated USB-C PD controller for source/sink negotiation.
Technical Context
The STM32G071CBU7 implements an Arm Cortex-M0+ core with Memory Protection Unit (MPU), supporting deterministic real-time execution and secure code isolation. It integrates dual 12-bit DACs with sample-and-hold, a 12-bit ADC capable of hardware oversampling up to 16-bit resolution, and a dedicated USB Type-C Power Delivery controller compliant with USB PD 3.0 specification.
Clock architecture includes four oscillators: 4–48 MHz HSE, 32 kHz LSE with calibration, 16 MHz HSI (±1%), and 32 kHz LSI (±5%). Power management supports five low-power modes (Sleep, Stop 0/1, Standby, Shutdown) with sub-μA RTC retention and VBAT backup capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 64 MHz max - enables deterministic real-time control with low interrupt latency. |
| Memory | 128 KB Flash (with securable area), 36 KB SRAM (32 KB with HW parity) - supports firmware updates and robust data buffering. |
| Analog Peripherals | 12-bit ADC (16 ext. channels, 0.4 µs), two 12-bit DACs, two rail-to-rail comparators - suitable for closed-loop analog sensing and actuation. |
| Communication | Four USARTs (two ISO7816/LIN/IrDA), two I²C (Fast-mode Plus), two SPI (32 Mbit/s), HDMI CEC, USB-C PD controller - enables multi-protocol device interfacing and power negotiation. |
| Power & Temp | 1.7–3.6 V operation, -40°C to +125°C ambient - qualified for harsh industrial and automotive under-hood environments. |
| Timers | 14 timers including TIM1 (128 MHz capable), LPTIM1/2, SysTick, WWDG/IWDG - supports motor control, precise timing, and system supervision. |
| I/O | Up to 60 fast I/Os, multiple 5 V-tolerant pins, all mappable to external interrupts - simplifies board-level signal routing and legacy interface compatibility. |
Pinout & Package
STM32G071CBU7 is housed in a 48-pin UFQFPN package (7 × 7 mm, 0.5 mm pitch), RoHS-compliant and ECOPACK2 certified. Pin functions are validated per ST's DS12232 Rev 5, Section 4 (Pinouts and Alternate Functions).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply / Ground | Dual 1.7–3.6 V supply rails with decoupling support for noise-sensitive analog/digital domains. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PF0–PF1 | General-purpose I/O | 60 total GPIOs; most support EXTI, alternate functions (USART, SPI, I²C), and 5 V tolerance on select pins. |
| NRST | Active-low reset input | Asynchronous reset with programmable pull-up; supports external reset sources and brownout recovery. |
| BOOT0 | Boot mode selection | Configures boot from System Memory (DFU), Flash, or SRAM - critical for field firmware recovery. |
| USB_DP / USB_DM | USB-C PD physical layer | Dedicated differential pair for USB-C CC logic and PD communication - no external transceiver required. |
| VREF+ / VREF- | Analog reference inputs | Enable precise ADC/DAC referencing; VREF+ accepts external 1.2–3.6 V reference or internal 2.048 V buffer. |
Key Features
| Feature | Design Value |
|---|---|
| USB-C Power Delivery Controller | Integrated PD PHY and protocol engine - eliminates need for external PD controller IC in USB-C power source/sink designs. |
| Low-power Timers (LPTIM1/2) | Sub-microamp active current with 32 kHz clock source - enables ultra-low-power periodic wakeups without exiting Stop mode. |
| Hardware CRC Unit | Dedicated peripheral for fast checksum calculation - accelerates firmware integrity checks and communication frame validation. |
| Secure Boot & ROP | Readout protection (ROP) levels and securable flash area - prevents unauthorized firmware extraction and enforces trusted boot flow. |
| Temperature Sensor + VREFINT | Calibrated on-chip temperature sensor (±1.5°C) and internal voltage reference (1.21 V ±1.5%) - enables self-calibration and battery monitoring without external components. |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
Use Scenario: Compact, battery-powered environmental monitor collecting temperature, humidity, and CO₂ via analog and digital sensors. IC Role / Device Role / Timing Role: Main controller executing sensor fusion, local decision logic, and LoRaWAN/Bluetooth LE packet formatting. Use Value: Dual DACs drive analog sensor excitation; 12-bit ADC with oversampling achieves <1% measurement error; LPTIM enables 10-second wakeup intervals at <1 µA average current. | Use Scenario: DIN-rail mounted electricity meter with tariff switching, tamper detection, and remote firmware update over PLC or NB-IoT. IC Role / Device Role / Timing Role: Primary MCU managing metrology ADC interface, RTC-based billing cycles, and secure OTA update verification. Use Value: Hardware CRC accelerates AES-128 signature validation; securable flash isolates bootloader; 125°C rating ensures reliability inside sealed meter enclosures. |
| USB-C Powered HMI Panel | Motor Control Edge Node |
Use Scenario: Touch-enabled display panel powered and updated via USB-C cable, requiring simultaneous power negotiation and data transfer. IC Role / Device Role / Timing Role: USB-C PD controller + application processor handling CC logic, VBUS monitoring, and GUI rendering. Use Value: Integrated USB-C PD controller negotiates up to 100 W delivery while freeing GPIOs for display interface; 64 MHz CPU renders UI at 30 fps with minimal external RAM. | Use Scenario: Brushless DC motor driver with Hall-effect feedback, current sensing, and field-oriented control (FOC) loop closure. IC Role / Device Role / Timing Role: Real-time FOC executor using TIM1 advanced timer, ADC-triggered sampling, and PWM output modulation. Use Value: TIM1's 128 MHz input clock enables 20 ns PWM resolution; 12-bit ADC samples three shunt currents simultaneously with <1 µs inter-channel skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G0B1CBU7 | 256 KB Flash, 144 KB SRAM, same pinout and peripherals - higher memory density with identical package and footprint. | Required for larger firmware images (e.g., embedded Linux RTOS, OTA stack + crypto libraries). | Select when >128 KB Flash or >36 KB SRAM is needed; full software compatibility with G071 series. |
| STM32L071CBU7 | Cortex-M0 core (32 MHz), 128 KB Flash, 20 KB SRAM, ultra-low-power focus - lacks USB-C PD, DACs, and high-speed timers. | Suitable for battery-only devices where sub-µA Stop mode dominates, but not for USB-C power negotiation or analog waveform generation. | Choose only if lowest active/standby current is primary requirement and USB-C PD/analog features are unnecessary. |
Compared with STM32G071CBU7, STM32G0B1CBU7 offers scalable memory without design change, while STM32L071CBU7 trades performance and integration for extreme energy efficiency - making G071 the optimal balance for USB-C–enabled industrial edge nodes needing analog precision and real-time responsiveness.
Availability
STM32G071CBU7 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, and USB-C powered HMI panels requiring stable component supply across long-lifecycle deployments.
Supply support for STM32G071CBU7 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, MEMS, and automotive-grade components.
The STM32G0 series targets cost-sensitive, high-integration applications demanding robust security, USB-C connectivity, and analog precision - bridging entry-level Cortex-M0+ performance with industrial-grade reliability.
FAQ
What is the maximum operating temperature grade for STM32G071CBU7?
The STM32G071CBU7 is qualified for operation from -40°C to +125°C ambient temperature, meeting industrial and extended automotive under-hood requirements. This rating is confirmed in Section 5.3.1 of DS12232 Rev 5 and applies to the UFQFPN48 package variant.
Does STM32G071CBU7 support USB-C Power Delivery sink and source roles?
Yes - the integrated USB-C Power Delivery controller supports both sink and source negotiation per USB PD 3.0 specification. It handles CC line monitoring, VBUS discharge control, and policy engine execution without external PD ICs, as detailed in Section 3.24 of the datasheet.
How many analog-to-digital converter channels does STM32G071CBU7 support?
The STM32G071CBU7 features a single 12-bit ADC with up to 16 external input channels and internal channels (temperature sensor, VREFINT, VBAT). It supports hardware oversampling to achieve up to 16-bit effective resolution, as specified in Section 3.14 and Table 58 of DS12232 Rev 5.
Is STM32G071CBU7 pin-compatible with other STM32G0-series MCUs?
Within the UFQFPN48 package variant, STM32G071CBU7 shares identical pinout with STM32G031CBU7 and STM32G041CBU7, but differs from STM32G0B1CBU7 (same package, different peripheral mapping). Always verify alternate function tables in Section 4 of DS12232 before substitution.
STM32G071CBU7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-UFQFN Exposed Pad
- Series:
- STM32G0
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 64MHz
- Connectivity:
- HDMI-CEC, I2C, IrDA, LINbus, SPI, UART/USART, USB Type-C™ (Power Delivery)
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, Temp Sensor, WDT
- Number of I/O:
- 44
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 36K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 3.6V
- Data Converters:
- A/D 17x12b; D/A 2x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G071CBU7 FAQ
1.How can I place an order for STM32G071CBU7 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G071CBU7 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 STM32G071CBU7 reliable?
The price and inventory of STM32G071CBU7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G071CBU7 is usually 5 days.
3.What payment methods are accepted for STM32G071CBU7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G071CBU7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G071CBU7?
STM32G071CBU7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G071CBU7 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 STM32G071CBU7?
For technical support, including STM32G071CBU7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G071CBU7 requirements.
6.How does Aetrix verify that STM32G071CBU7 is sourced from the original manufacturer or authorized distributors?
All STM32G071CBU7 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 STM32G071CBU7 meets industry standards.
7.What is the process for return or replacement of STM32G071CBU7?
All STM32G071CBU7 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G071CBU7, 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 STM32G071CBU7 part is unused and in its original packaging.
Return procedure for STM32G071CBU7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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