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STMicroelectronics STM32G0B1CCU3
- Part No.:
- STM32G0B1CCU3
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-UFQFN Exposed Pad
- Datasheet:
-
STM32G0B1CCU3.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 48UFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:4,891
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Product details
Overview
STM32G0B1CCU3 from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller with 512 KB Flash, 144 KB SRAM, dual 12-bit DACs, two FDCAN controllers, and USB Type-C™ Power Delivery controller - deployed in industrial HMI, smart metering, and USB-C PD source designs requiring high integration and low-power operation.
For engineers reviewing the STM32G0B1CCU3 datasheet, STM32G0B1CCU3 pinout, STM32G0B1CCU3 application, or STM32G0B1CCU3 equivalent, key selection criteria include its 64 MHz CPU frequency, 94 fast I/Os (including 5 V-tolerant), 12-channel DMA, 12-bit ADC with hardware oversampling, and support for multiple low-power modes (Stop/Standby/Shutdown) with RTC wakeup capability.
Technical Context
The STM32G0B1CCU3 integrates an Arm Cortex-M0+ core with MPU, dual-bank Flash supporting read-while-write, and 144 KB SRAM (128 KB with hardware parity). Its clock system includes 4–48 MHz HSE, 32 kHz LSE with calibration, and internal 48 MHz RC oscillator for crystal-less USB FS operation.
Peripheral interconnect supports flexible routing via DMAMUX and GPIO alternate function mapping across 17 timers (including two 128 MHz-capable advanced timers), six USARTs (three with ISO7816/LIN/IrDA), three I²C interfaces (Fast-mode Plus), and HDMI CEC - enabling complex real-time control and multi-protocol communication in space-constrained applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, up to 64 MHz - delivers deterministic real-time performance with low gate count and energy efficiency. |
| Flash Memory | 512 KB, dual-bank, read-while-write, securable area - enables secure firmware updates and bootloader isolation. |
| SRAM | 144 KB total (128 KB with HW parity) - supports large buffers for communication stacks and real-time data processing. |
| ADC | 12-bit, 0.4 µs conversion, up to 16 external channels, 16-bit oversampling - suitable for precision sensor acquisition in metering. |
| DAC | Two 12-bit DACs with sample-and-hold - enables analog waveform generation and precise voltage reference control. |
| FDCAN | Two fully compliant CAN FD controllers - supports high-speed automotive diagnostics and industrial fieldbus communication. |
| USB | USB 2.0 FS device/host + USB Type-C™ PD controller - eliminates need for external PD PHY in compact power delivery solutions. |
| Operating Temp | –40°C to 125°C - qualified for extended industrial and automotive under-hood environments. |
Pinout & Package
STM32G0B1CCU3 is housed in a 48-pin UFQFPN package (7 × 7 mm, 0.5 mm pitch), RoHS-compliant and ECOPACK2-certified, optimized for thermal dissipation and PCB area efficiency in high-density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Core & I/O power supply | 1.7–3.6 V core supply; separate VDDIO allows 1.65–3.6 V I/O rail - enables mixed-voltage interfacing. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15, PF0–PF1 | General-purpose I/O | Up to 94 fast I/Os, all mappable to EXTI; multiple 5 V-tolerant pins - simplifies level-shifting in legacy peripheral integration. |
| PA2/PA3, PB10/PB11, PC10/PC11 | USART TX/RX | Six independent USARTs; three support ISO7816, LIN, IrDA, auto-baud detection - ideal for smart card readers and automotive diagnostics. |
| PA11/PA12, PB14/PB15 | USB D+/D− | Crystal-less USB 2.0 FS interface - reduces BOM cost and board space in portable USB-C devices. |
| PD0/PD1, PD8/PD9 | FDCAN RX/TX | Two independent FDCAN transceiver interfaces - supports dual-bus redundancy or gateway functionality in industrial networks. |
| PA4–PA7, PB0–PB1 | DAC1/DAC2 outputs | Dual buffered 12-bit DAC outputs with sample-and-hold - enables simultaneous analog signal generation for motor control or calibration circuits. |
Key Features
| Feature | Design Value |
|---|---|
| USB Type-C™ PD Controller | Integrated policy engine and PHY - eliminates external PD controller IC in USB-C power source/sink designs. |
| Low-power Modes | Sleep, Stop, Standby, Shutdown with sub-μA RTC retention - extends battery life in always-on IoT edge nodes. |
| Hardware CRC Unit | Dedicated 32-bit CRC accelerator - offloads checksum computation from CPU for secure firmware OTA updates. |
| Memory Protection Unit (MPU) | Configurable region-based access control - enforces software partitioning for functional safety (IEC 61508 SIL2) and secure boot. |
| Temperature Sensor | Calibrated on-chip sensor with ±1.5°C accuracy - enables thermal monitoring without external components in enclosed enclosures. |
| VBAT Supply Support | Dedicated VBAT pin for RTC and backup registers - maintains timekeeping and critical state during main power loss. |
Applications
| Industrial HMI Panel | Smart Electricity Meter |
|---|---|
Use Scenario: Compact touch-enabled display with local data logging and RS-485/Modbus communication. IC Role / Device Role / Timing Role: Main application processor managing GUI rendering, sensor data aggregation, and dual-protocol serial communication. Use Value: Dual USARTs with LIN/IrDA and 144 KB SRAM enable concurrent Modbus RTU and DLMS/COSEM stack execution without external RAM. | Use Scenario: DIN-rail mounted meter with tamper detection, pulse output, and optical/IR communication port. IC Role / Device Role / Timing Role: System-on-chip handling metrology ADC sampling, tariff calculation, secure storage, and IR/UART utility interface. Use Value: 12-bit ADC with hardware oversampling and integrated temperature sensor provide calibrated energy measurement per IEC 62053-21 Class 0.5S. |
| USB-C Power Delivery Source | Automotive Diagnostic Tool |
Use Scenario: Portable 65 W GaN charger with programmable voltage/current profiles and E-mark authentication. IC Role / Device Role / Timing Role: USB-C PD policy manager and host controller coordinating power negotiation and safety monitoring. Use Value: Integrated USB Type-C PD controller with VBUS discharge FET drivers reduces component count by ≥4 ICs versus discrete PD solutions. | Use Scenario: Handheld OBD-II scanner supporting UDS, KWP2000, and CAN FD diagnostics over Bluetooth/Wi-Fi. IC Role / Device Role / Timing Role: Dual-FDCAN gateway bridging vehicle bus to wireless interface, with real-time timestamping and error logging. Use Value: Two independent FDCAN controllers with bit-rate switching (up to 5 Mbps) ensure compatibility with legacy CAN and modern CAN FD ECUs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G0B1RCT3 | LQFP64 package (64-pin), same core/peripherals but larger footprint and higher I/O count (94 vs. 42 usable in UFQFPN48) | Better suited for prototyping and designs requiring full peripheral access or debug header routing | Select when board layout allows larger package and full GPIO availability is required for testability or expansion. |
| STM32G0C1REY3 | Same UFQFPN48 package, but 1 MB Flash, 144 KB SRAM, enhanced security (AES-256, PKA), no USB-C PD controller | Targeted at secure firmware update and cryptographic applications where PD functionality is unnecessary | Choose for secure boot, encrypted OTA, or trusted execution environments - not for USB-C power control. |
Compared with STM32G0B1RCT3, the STM32G0B1CCU3 offers identical feature set in a smaller 7×7 mm footprint, while STM32G0C1REY3 trades USB-C PD for cryptographic acceleration - making the G0B1CCU3 optimal for space-constrained, USB-C-powered embedded systems requiring both connectivity and control.
Availability
STM32G0B1CCU3 is available at Aetrix Electronics and suitable for industrial HMI, smart metering, and USB-C PD source designs requiring stable component supply, long-term lifecycle assurance, and ECOPACK2 environmental compliance.
Supply support for STM32G0B1CCU3 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 with strong industrial and automotive qualification heritage.
The STM32G0 series targets cost-sensitive, low-power, high-integration applications - designed specifically for smart home devices, industrial controls, and USB-C ecosystem products needing robust peripherals and security in compact packages.
FAQ
Does STM32G0B1CCU3 support crystal-less USB Full-Speed operation?
Yes. The device integrates a factory-trimmed 48 MHz internal RC oscillator (HSI48) qualified for USB FS timing accuracy (±0.25 % over temperature and voltage), eliminating the need for an external crystal in USB device or host implementations.
What is the maximum number of I/O pins available in the UFQFPN48 package?
The STM32G0B1CCU3 in UFQFPN48 provides 42 user-accessible I/O pins (excluding power, reset, and debug pins). All are configurable as GPIOs with EXTI capability and multiple alternate functions, including 5 V-tolerant options on designated pins.
How does the dual-bank Flash architecture benefit firmware updates?
Dual-bank Flash enables true read-while-write operation: one bank executes code while the other is erased and reprogrammed. This allows seamless, zero-downtime firmware updates and secure bootloader validation without halting application execution.
Is the USB Type-C™ Power Delivery controller compliant with USB PD 3.0 specification?
Yes. The integrated USB-C PD controller supports USB PD 3.0 with Programmable Power Supply (PPS), Fast Role Swap (FRS), and vendor-defined messages (VDMs), meeting USB-IF certification requirements for sink/source/port partner negotiation and safety monitoring.
STM32G0B1CCU3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-UFQFN Exposed Pad
- Series:
- STM32G0
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 64MHz
- Connectivity:
- CANbus, HDMI-CEC, I2C, IrDA, LINbus, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 44
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 144K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 3.6V
- Data Converters:
- A/D 17x12b SAR; D/A 2x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G0B1CCU3 FAQ
1.How can I place an order for STM32G0B1CCU3 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G0B1CCU3 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 STM32G0B1CCU3 reliable?
The price and inventory of STM32G0B1CCU3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G0B1CCU3 is usually 5 days.
3.What payment methods are accepted for STM32G0B1CCU3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G0B1CCU3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G0B1CCU3?
STM32G0B1CCU3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G0B1CCU3 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 STM32G0B1CCU3?
For technical support, including STM32G0B1CCU3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G0B1CCU3 requirements.
6.How does Aetrix verify that STM32G0B1CCU3 is sourced from the original manufacturer or authorized distributors?
All STM32G0B1CCU3 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 STM32G0B1CCU3 meets industry standards.
7.What is the process for return or replacement of STM32G0B1CCU3?
All STM32G0B1CCU3 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G0B1CCU3, 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 STM32G0B1CCU3 part is unused and in its original packaging.
Return procedure for STM32G0B1CCU3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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