STM32G071CBT3 - 64MHz Cortex-M0+ MCU | STMicroelectronics
料号： STM32G071CBT3 ✓ 量产中STM32G071CBT3 概述
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripheral interfaces on one device. The STM32G0 family hierarchy progresses from Cortex-M0+ processor core to 32-bit RISC microcontroller, embedded processor, and semiconductor. This structure allows compact control boards to execute firmware, coordinate external hardware, and implement real-time system behavior without a separate external processor.
The STM32G071CBT3 combines a 64 MHz operating frequency with 128 KB of flash for program storage and 36 KB of SRAM for working memory. Its 48-pin LQFP-7x7 package provides a conventional leaded format that is suitable for assembled production boards and designs that benefit from visually inspectable joints. The combination of 32-bit processing, embedded memory, and a 48-pin package supports a broad range of embedded control tasks.
Its Cortex-M0+ architecture is designed for efficient instruction execution in resource-conscious systems. The 36 KB SRAM provides substantially more runtime working space than many entry-level Cortex-M devices, while 128 KB of flash allows larger application code, boot logic, configuration data, and firmware updates to reside on-chip. Designers should still budget SRAM for the stack, interrupt context, peripheral buffers, and application-specific buffers when defining memory budgets.
Typical uses include compact industrial controllers, sensor-hub boards, motor-control subsystems, instrumentation, appliance control panels, and connected equipment modules. The device is also suitable for educational platforms because the LQFP package is accessible for breadboard adapters and assembled prototypes. Final peripheral selection and firmware configuration should be confirmed against the STM32G071x8/xB documentation for the exact board design.
A key design consideration is power and signal integrity around the 64 MHz processing path. Place decoupling capacitors close to the supply pins, preserve the package pin arrangement required by the STM32G071x8/xB documentation, and provide clean grounding for both digital and analog subsystems. Clock, reset, boot, and programming interfaces should also be routed so that debug access remains practical after assembly.
This product page combines manufacturer-device details, package information, practical design considerations, and a structured comparison with closely related STM32G071-family options. It supports faster engineering evaluation by highlighting what remains unchanged across the family and where temperature-grade or memory-capacity differences affect device selection.
直接替换替代料： STM32G071CBT3 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： STM32G071CBT3 （相同外形与封装尺寸） ——差异在于 Package, Product Type, Pin Count, Flash Organization.
STM32G071CBT6
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →STM32G071CBT7
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM32G071KBT3
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →STM32G071KBU6
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →STM32G071KBT6
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →STM32G071CBT3 最大额定值与电气特性
| Product Type | 32-bit microcontroller |
| Processor Core | Arm Cortex-M0+ |
| Instruction Set | 32-bit RISC |
| Maximum CPU Frequency | 64 MHz |
| Flash Memory | 128 KB |
| Program Memory Organization | 128K x 8 bits |
| SRAM | 36 KB |
| 封装 | 48-LQFP, 7 mm x 7 mm |
| 引脚数量 | 48 pins |
| 安装类型 | Surface mount |
STM32G071CBT3 48-lqfp, 7 mm x 7 mm 引脚配置指南
STM32G071CBT3（48-lqfp, 7 mm x 7 mm 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： STM32G071CBT3.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STM32G071CBT3 适用于 6 应用s: Compact Industrial Control Module, Sensor Hub and Condition Monitoring, Appliance and Embedded Equipment Controller, Motor and Actuator Subsystem, Instrumentation and Data Acquisition, IoT Gate and Connectivity Module.
Compact Industrial Control Module
The STM32G071CBT3 fits compact industrial control modules that combine firmware-driven sequencing with limited board space. Its 64 MHz Arm Cortex-M0+ core provides responsive execution for control logic, while 128 KB of flash provides room for application code, configuration storage, and update logic. The 36 KB of SRAM gives the firmware additional working space for task state, communication buffers, and interrupt handling. Housed in a 48-LQFP 7 mm by 7 mm package, the device also supports conventional leaded assembly processes. For industrial use, select the suffix whose documented temperature range satisfies the enclosure environment and verify supply limits, EMC requirements, and peripheral coverage against the manufacturer datasheet.
推荐
Sensor Hub and Condition Monitoring
The STM32G071CBT3 is appropriate for a sensor hub that must sample inputs, apply local filtering, and forward information to another controller. Its 64 MHz processing rate supports responsive acquisition and control tasks, and its 128 KB of flash can retain firmware, lookup tables, calibration logic, and communication routines. The 36 KB SRAM allows measured data, status flags, and protocol buffers to coexist with the real-time stack. The 48-LQFP package is practical for a compact mixed-signal board where components are mounted on both sides. The exact analog, timer, and communication resources assigned to the sensing function must be checked in the STM32G071x8/xB documentation, and sensor-reference grounding should be planned separately from high-current switching paths.
推荐
Appliance and Embedded Equipment Controller
The STM32G071CBT3 can serve as the central controller in appliances and embedded equipment where a 32-bit MCU and moderate on-chip memory are sufficient. The 64 MHz Cortex-M0+ core handles sequencing, user-interface logic, and supervisory tasks, while 128 KB of flash stores application firmware and 36 KB of SRAM supports working buffers. Its 48-LQFP 7 mm by 7 mm outline supports automated assembly and provides a clear leaded package for inspection. Because the STM32G0 family targets resource-efficient mainstream designs, the part is especially relevant where adding a larger processor would increase board complexity without adding required performance. Confirm the number and electrical characteristics of the selected I/O pins before assigning displays, relays, buttons, or external interfaces.
推荐
Motor and Actuator Subsystem
The STM32G071CBT3 is useful in a dedicated motor or actuator subsystem when the controller must execute deterministic sequencing close to the power stage. The 64 MHz Cortex-M0+ core provides enough control throughput for coordinated command processing, fault handling, and status reporting. With 128 KB of flash and 36 KB of SRAM, the device can maintain separate control code, motion parameters, and communication state in one compact package. The 48-LQFP format permits access to a useful mix of pins for external control signals in a 7 mm by 7 mm footprint. Motor designs must still verify the exact timer outputs, pin-alternate mappings, electrical limits, and external driver requirements, and should isolate switching-node currents from sensitive control references.
推荐
Instrumentation and Data Acquisition
The STM32G071CBT3 can support compact instrumentation front ends that acquire measurements, perform local processing, and pass results to a host or display. Its 64 MHz Cortex-M0+ core handles protocol servicing and control logic, while the 128 KB flash and 36 KB SRAM provide capacity for acquisition routines, calibration information, and transient measurement data. The 48-LQFP package makes the device practical for a densely populated data-acquisition board. Selection should focus on the specific conversion, timing, and interface functions present in the STM32G071x8/xB device rather than CPU frequency alone. Analog reference layout, calibration strategy, input protection, and digital timing margins require separate engineering review for precision measurement results.
推荐
IoT Gate and Connectivity Module
The STM32G071CBT3 fits an IoT gateway or connectivity module that coordinates a local sensor network and manages communication between embedded nodes and a higher-level controller. The 64 MHz core handles protocol tasks and application logic, while 128 KB of flash can store firmware and configuration and 36 KB of SRAM can support packet and message buffers. Its 48-LQFP 7 mm by 7 mm package allows the MCU to be placed beside a wireless or wired communications device on a compact module. The radio itself remains a separate component, so its supply sequencing, antenna layout, and electromagnetic isolation must be planned independently. Firmware designers should also verify which communication peripherals and alternate-function mappings are required before selecting this exact device.
推荐
推荐产品汇总
工程参考数据： STM32G071CBT3 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | STM32G071CBT6 | STM32G071CBT7 | STM32G071KBT3 | STM32G071KBU6 | STM32G071KBT6 |
|---|---|---|---|---|---|---|
| Package | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Processor Core | Arm Cortex-M0+ | Arm Cortex-M0+ | Arm Cortex-M0+ | Arm Cortex-M0+ | Arm Cortex-M0+ | Arm Cortex-M0+ |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Flash Memory | 128 KB | 128 KB | 128 KB | 256 KB | 256 KB | 256 KB |
| Temperature-Grade Suffix | T3 | T6 | T7 | T3 | U6 | T6 |
| Device Type | STM32G0 mainstream microcontroller | STM32G0 mainstream microcontroller | STM32G0 mainstream microcontroller | STM32G0 mainstream microcontroller | STM32G0 mainstream microcontroller | STM32G0 mainstream microcontroller |
关键差异点
- Higher on-chip flash capacity （对比 STM32G071KBT3)
- Same processing platform with grade-based selection （对比 STM32G071CBT6)
- Mainstream resource balance （对比 STM32G071KBT3)
- Compact standardized package （对比 STM32G071KBT6)
设计说明
Use the manufacturer STM32G071x8/xB pin-description table to assign all 48 LQFP pads. Place the required supply-decoupling capacitors immediately adjacent to their associated supply and ground pins, keeping each loop as short as practical. Route high-speed clock signals over a continuous ground plane, avoid crossing switch-node or motor-drive copper, and preserve the documented exposed conditions for the 7 mm by 7 mm package footprint.
Budget the MCU supply separately from analog and switching loads. The 64 MHz operating point can increase dynamic current compared with lower-frequency operation, so the regulator should be sized for the complete board rather than the target device alone. Verify the device's documented supply range, current limits, power-up behavior, and decoupling requirements before defining the power tree. Use local bulk and high-frequency bypass capacitance where the manufacturer application guidance recommends it.
Keep reset, boot, and debug access available in the final layout. A programming connector, test points, or exposed pads should permit firmware recovery without redesigning the assembly. Route sensitive measurement inputs away from power converters, relays, motor drivers, and other high-dv/dt circuitry. Analog-reference and ground-return planning is particularly important if the 128 KB flash target is used for acquisition, filtering, and calibration functions rather than simple digital control.
Do not treat an identical package outline as proof that every alternate-function mapping and peripheral configuration is identical. Before substituting STM32G071CBT6, STM32G071CBT7, or a higher-flash G071 option, compare the exact temperature grade, pin multiplexing, power pins, peripheral resources, startup behavior, and software device identification. Keep firmware configuration and board validation paired with each approved alternate MPN.
合规信息
The available manufacturer product summary does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-mineral declarations for STM32G071CBT3. Obtain the current compliance documents from STMicroelectronics before production release.