Item specifics
Description
STM32G0B1VET6 is a Cortex-M0+ MCU at 64 MHz, LQFP-100. 512 KB Flash, 144 KB SRAM, USB 2.0 FS device (crystal-less), CAN FD, 12-bit ADC (19 ch), 2 comparators, 2×12-bit DACs, advanced PWM timer, LP timers, RTC, 4×USART/UART, 2×SPI/I2S, 2×I2C. 94 x 5 V-tolerant I/Os. 2.0–3.6 V, -40–85 °C. Compared to STM32G0B1VCT6 (256 KB Flash), doubles Flash to 512 KB, the largest memory in G0B1 100-pin series for large-code and CAN FD applications.
Core: Cortex-M0+ 64 MHz Memory: 512 KB Flash, 144 KB SRAM USB: USB 2.0 FS device (crystal-less) CAN: CAN FD Analog: 12-bit ADC (19 ch), 2×12-bit DACs, 2× comparators Connectivity: 4×USART/UART, 2×SPI/I2S, 2×I2C Timers: Advanced PWM, LP timers, RTC I/Os: 94 (5 V-tolerant) Package: LQFP-100
CAN FD nodes, industrial control, motor drives, USB devices, embedded systems needing large storage and many I/Os
512 KB Flash + 144 KB SRAM: Large storage CAN FD + USB 2.0 FS: Multi-protocol communication Rich analog: ADC/DACs/comparators 94 I/Os in 100-pin high-integration package
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FAQ
1. What is the STM32G0B1VET6, and where is it positioned in the STM32G0 series?
The STM32G0B1VET6 is the flagship MCU of STMicroelectronics' STM32G0 series, built around a 64 MHz Arm® Cortex®‑M0+ core in an LQFP‑100 package. It integrates 512 KB Flash and 144 KB SRAM, and is the first in the G0 family to include a USB Type‑C Power Delivery (PD) 2.0/3.0 controller and a CAN FD interface. This makes the G0B1 the most feature‑rich member of the G0 family, purpose‑designed for industrial and consumer applications that demand generous memory, advanced communication, and abundant I/Os—such as smart sensor hubs, IoT gateways, industrial bus nodes, and portable PD‑powered devices.
2. How does the STM32G0B1VET6 differ from the G071 series? Why upgrade to the G0B1?
The G0B1 significantly enhances the G071 foundation: Flash capacity increases to 512 KB (from a maximum of 128 KB on the G071), SRAM grows to 144 KB (from 36 KB), and it integrates a complete USB PD 2.0/3.0 PHY and protocol engine with support for Programmable Power Supply (PPS) and up to 100 W power negotiation. It retains CAN FD and multiple UART/SPI/I²C interfaces. If your application needs to handle complex PD protocols, store more firmware, or buffer more data, the G0B1 is a far more powerful choice than the G071, while still maintaining the G0 series' low power and ease of use.
3. What can the USB Type‑C Power Delivery on the G0B1 do? Is an external PD controller required?
The G0B1 includes a complete USB PD 3.0‑compliant PHY and protocol stack, eliminating the need for any external PD controller IC. It can act as a Provider, delivering up to 100 W to external devices, or as a Consumer, negotiating the required voltage and current from a PD charger. Power capability negotiation is handled via CC pins, with support for PPS and fast role swap. This makes the G0B1 ideal for designing USB‑C powered portable equipment, smart chargers, and multi‑port power distribution systems.
4. What CAN FD features does the G0B1 support, and how does it improve upon classic CAN?
The G0B1 includes one FDCAN controller that is backward‑compatible with CAN 2.0 and supports flexible data rates up to 5 Mbps and payloads up to 64 bytes. Compared to classic CAN, it offers significantly higher real‑time throughput, making it ideal for industrial automation, automotive electronics, and distributed control systems that require high‑speed, reliable communication. With the generous 512 KB Flash, complex fieldbus stacks such as CANopen or DeviceNet can easily be accommodated.
5. What does 512 KB Flash and 144 KB SRAM mean for the G0 series? What applications become possible?
This is the highest memory configuration in the G0 series. The 512 KB Flash can hold a large RTOS (such as FreeRTOS or ThreadX), complex communication stacks (USB PD, CANopen, TCP/IP), and lightweight graphics libraries (e.g., TouchGFX Lite). The 144 KB SRAM provides ample space for network buffers, display frame buffers, and data processing, enabling the G0B1 to handle tasks that previously required a Cortex‑M4 class MCU—all while retaining the M0+’s cost‑effectiveness and low‑power advantages.
6. How many usable I/Os does the LQFP‑100 package offer? Does it support a segment LCD?
The LQFP‑100 package provides up to 86 general‑purpose I/O pins, easily connecting a large number of sensors, actuators, and communication modules—ideal for complex systems that need many inputs and outputs. The G0B1 also inherits the G0 family’s segment LCD driver (configuration dependent), enabling direct drive of segment displays without an external driver chip, which is perfect for local display needs in home appliances, industrial meters, and consumer electronic devices.
7. What is its power consumption like? Does USB PD communication significantly increase power draw?
The G0B1 continues the G0 series’ excellent energy efficiency, with a run‑mode current of about 100 µA/MHz and support for Sleep, Stop, and Standby low‑power modes; Standby current can drop to the micro‑amp level. The USB PD controller consumes very little power during negotiation; the VBUS power transfer is managed externally, so the MCU itself remains efficient. This makes the G0B1 well‑suited for portable devices and IoT nodes that need USB PD capability yet require long battery life.
8. Are any additional PD stack licenses or tools needed to develop with the STM32G0B1VET6?
No. ST provides a complete USB PD stack library (including Core Library and Device Policy Manager) within the STM32CubeG0 firmware package. Developers can implement PD communication simply by calling API functions—no additional licenses are required. Combined with the STM32CubeMX graphical configuration tool, PD roles, voltage/current levels, and PPS parameters can be quickly set up, dramatically lowering the barrier and development time for USB PD projects.
9. Does the G0B1 support OTA updates? How can they be implemented?
Although the G0B1 does not feature hardware dual‑bank Flash, its 512 KB of Flash can be partitioned in software to enable secure firmware updates. A common approach divides the Flash into a bootloader area and either two application areas or one application area plus a download buffer. New firmware is received via USB, CAN, or UART and verified and programmed by the bootloader. Combined with code readout protection (RDP) and the Memory Protection Unit (MPU), the update process can be made secure and reliable, meeting the remote‑maintenance needs of industrial equipment.
10. If I later need more processing power or graphics acceleration, what upgrade options are available?
If your application eventually requires more real‑time computing power (e.g., DSP instructions or FPU), higher clock speeds, or hardware graphics acceleration, you can upgrade to the STM32G4 series (Cortex‑M4, 170 MHz) or the STM32H7 series. Nevertheless, the G0B1 remains a highly cost‑effective choice for many communication‑intensive applications thanks to its ultra‑low power, built‑in USB PD, and CAN FD, and code and hardware designs can be migrated to higher‑end STM32 platforms with relative ease.