STM32G071CBT6: 64MHz Cortex-M0+ MCU with USB and ADC

ElecSuppliers Part Number GuideAug 20, 2026

The STM32G071CBT6 is a 32-bit microcontroller from STMicroelectronics based on the Arm Cortex-M0+ processor core. It is part of the STM32G0 family and combines a 64MHz CPU with integrated Flash, SRAM, analog peripherals and multiple communication interfaces.

The device is designed for embedded applications that need a modern low-power microcontroller with a broad set of peripherals in a compact package.

What Is the STM32G071CBT6?

The STM32G071CBT6 integrates a 64MHz Arm Cortex-M0+ core with 128KB of Flash memory and 36KB of SRAM.

The Cortex-M0+ architecture is aimed at resource-efficient embedded systems where processing performance, power consumption and peripheral integration all need to be balanced.

The STM32G071CBT6 also includes a range of digital and analog peripherals, allowing many control and sensing functions to be implemented without additional external ICs.

The complete STM32G071CBT6 Part Number identifies the specific device and package configuration rather than referring only to the broader STM32G071 family.

STM32G071CBT6 64MHz Cortex-M0+ Core

The microcontroller uses an Arm Cortex-M0+ core running at up to 64MHz.

The Cortex-M0+ architecture provides a compact instruction set and is widely used in embedded control applications where a relatively small MCU can handle the required firmware without the complexity of a higher-end processor.

At 64MHz, the STM32G071CBT6 can handle typical control, communication and sensor-processing tasks while retaining the low-cost positioning of the STM32G0 family.

STM32G071CBT6 Flash and SRAM

The STM32G071CBT6 provides 128KB of Flash and 36KB of SRAM.

Flash is used primarily for application firmware and other nonvolatile program information, while SRAM provides temporary storage for variables, communication buffers, stacks and runtime processing.

The available memory capacity makes the device suitable for more than simple GPIO control. It can support embedded applications that combine control logic, communication protocols, sensor processing and user-interface functions.

When estimating memory requirements, developers should account for the application code, communication stacks, interrupt handlers and runtime buffers rather than considering program size alone.

STM32G071CBT6 USB 2.0 Full-Speed Interface

One of the notable features of the STM32G071CBT6 is its integrated USB 2.0 Full-Speed interface.

USB connectivity can allow an embedded product to communicate directly with a computer or another USB host without requiring a separate USB interface controller.

This can be useful for configuration tools, firmware updates, data transfer and USB-based control applications.

The USB interface also expands the potential application range of the MCU beyond basic industrial control and sensor processing.

STM32G071CBT6 12-Bit ADC

The STM32G071CBT6 includes a 12-bit analog-to-digital converter for measuring analog signals.

A 12-bit ADC provides 4,096 digital codes across the selected conversion range. This allows sensors, voltage-monitoring circuits and other analog sources to be connected directly to the MCU when their electrical characteristics are compatible with the ADC inputs.

The actual measurement accuracy depends on the ADC characteristics, reference conditions, PCB design, signal source and external noise.

For low-level analog measurements, appropriate filtering and PCB layout can be important to obtain stable results.

STM32G071CBT6 Digital Interfaces

The STM32G071CBT6 provides multiple communication interfaces for connecting external devices.

Depending on the application configuration, these interfaces can be used to connect sensors, memories, displays, communication modules and other controllers.

Common embedded interfaces such as I2C, SPI and USART allow the MCU to work as the central controller in a wide range of hardware architectures.

This peripheral integration can reduce the need for additional interface ICs and simplify the overall PCB design.

STM32G071CBT6 Timers and Control Functions

Timers are an important part of the STM32G071CBT6 peripheral set.

They can be used for periodic interrupts, pulse generation, PWM control, input capture and other time-dependent operations.

PWM outputs are particularly useful in embedded control applications. They can be used for functions such as motor control, LED brightness adjustment, power-control signals and actuator control.

Using hardware timers rather than generating timing signals entirely through software can improve timing accuracy and reduce CPU overhead.

STM32G071CBT6 Security Features

The STM32G0 family includes hardware features intended to improve the security of embedded applications.

For products that store configuration information, communicate over external interfaces or perform firmware updates, security becomes increasingly important.

The exact security architecture and available functions should be evaluated against the requirements of the application, especially when the MCU is used in connected equipment or products that need controlled firmware deployment.

STM32G071CBT6 Package

The STM32G071CBT6 uses an LQFP package with 48 pins.

The package provides a practical balance between GPIO availability, peripheral access and PCB size.

The T6 suffix is part of the complete ordering code, so engineers should use the full Part Number when creating a BOM or evaluating replacements.

A different STM32G071 package may expose a different number of pins or have different physical dimensions even when the underlying MCU family is similar.

STM32G071CBT6 Applications

The STM32G071CBT6 can be used in many embedded control and monitoring systems.

Potential applications include industrial controllers, smart sensors, USB-connected devices, motor-control equipment, consumer electronics, measurement equipment and compact IoT products.

The combination of a 64MHz Cortex-M0+ core, integrated ADC, USB, timers and serial communication interfaces makes the device suitable for systems that require both digital control and analog data acquisition.

STM32G071CBT6 Design Considerations

When designing with the STM32G071CBT6, engineers should evaluate power supply, clock configuration, reset circuitry, programming interface and PCB decoupling together with the application peripherals.

Analog inputs should be kept away from unnecessarily noisy switching signals where possible. USB routing requires additional attention to differential signal integrity and PCB layout.

The selected package also determines which GPIO and peripheral functions are physically available, so the complete pin assignment should be checked early in the schematic stage.

Choosing the STM32G071CBT6

The STM32G071CBT6 is a practical option for embedded products that need a 64MHz Cortex-M0+ processor with integrated Flash, SRAM, USB, ADC and multiple digital interfaces.

Its peripheral integration can reduce external component count while providing enough processing capability for many control and monitoring applications.

Before selecting the device, engineers should verify Flash and SRAM requirements, ADC channels, USB requirements, GPIO count, communication interfaces, package dimensions and operating conditions.

For procurement and PCB design, the complete STM32G071CBT6 Part Number should be used rather than referring only to STM32G071, because the full ordering code identifies the specific device configuration.