STM32G071CBU3 - 64MHz Cortex-M0+ MCU | STMicroelectronics
MPN: STM32G071CBU3 ✓ AktifSTM32G071CBU3 Ringkasan
A microcontroller is a semiconductor device that integrates a processor core, program memory, data memory, and peripherals into one package. In the product hierarchy, the STM32G071CBU3 is an MCU, a general-purpose integrated circuit, and a member of the STM32G0 microcontroller family. Its Arm Cortex-M0+ core provides a 32-bit processing architecture optimized for control tasks, while its integrated memories allow standalone operation without an external program or data memory device.
The principal device characteristics include a 64 MHz maximum CPU frequency, 128 KB of Flash storage, and 36 KB of SRAM. The 48-pin UFQFPN package measures 7 x 7 mm, making the device suitable for compact industrial, consumer, appliance, sensing, and embedded-control products. Its operating-voltage options include 1.8 V, 2.5 V, and 3.3 V, allowing integration with common low-voltage system rails.
The STM32G071 architecture provides a practical balance between processing speed, memory capacity, and board area. The Cortex-M0+ instruction set supports efficient control-oriented firmware, while the larger 128 KB Flash region can hold application code, boot routines, configuration data, and field-update logic. The 36 KB of RAM supports working buffers, communication stacks, and state management without requiring external static memory in many designs.
Typical applications include compact motor-control modules, digital control panels, industrial sensor interfaces, building equipment, low-cost communication equipment, and consumer appliances. The UFQFPN footprint favors designs where PCB area is constrained but a higher pin count is needed for external analog, communication, debug, or control connections.
A principal design consideration is exposed-pad thermal management. The thermal and electrical performance of the package depends on PCB copper, via density, airflow, and the load imposed by the selected power mode and peripherals. Follow the pin-description table, recommended land pattern, and decoupling guidance in the manufacturer documentation before assigning tracks or finalizing the PCB.
This page consolidates the verified core specifications, package information, commercial workflow, and same-family drop-in options into an engineering-focused reference. It also identifies the limits of cross-manufacturer substitution: footprint similarity alone does not establish peripheral equivalence, firmware compatibility, timing behavior, or safe production interchangeability.
Pilihan pengganti yang segera untuk STM32G071CBU3 — sama paket, pin-pin kompatibel. Bahagian paket yang berbeza memerlukan kerja ulang PCB diasingkan.
Varietas dalam siri ini
Model serupa yang kompatibel dengan pengganti yang segera STM32G071CBU3 (sama faktor bentuk dan kaki) — berbeza dalam Package, Product Type.
STM32G071CBU6
✅ Masuk Drop-In ⚠️ Spesifikasi Tidak DisahkanHubungi untuk harga
Lihat Datasheet →STM32G051CBU6
✅ Masuk Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif rujukan (tidak dalam katalog)
STM32G041CBU6
✅ Masuk Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif rujukan (tidak dalam katalog)
STM32G031CBU6
✅ Masuk Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif rujukan (tidak dalam katalog)
STM32G071CBU3 Penilaian maksimum & Ciri-ciri Elektrik
| Product Type | 32-bit microcontroller (MCU) |
| CPU Core | Arm Cortex-M0+ |
| Maximum CPU Frequency | 64 MHz |
| Architecture | 32-bit RISC |
| Flash Memory | 128 KB |
| Flash Organization | 128K x 8 bits |
| RAM | 36 KB |
| Operating Voltage Options | 1.8 V / 2.5 V / 3.3 V |
| Kemasan | 48-pin UFQFPN, 7 x 7 mm |
| Jenis Pemasangan | Surface mount |
| Minimum Operating Temperature | -40 C |
| Product Series | STM32G0 |
| Device Subseries | STM32G071 |
Panduan Konfigurasi Pin STM32G071CBU3 48-pin ufqfpn, 7 x 7 mm
Konfigurasi pin untuk STM32G071CBU3 (48-pin ufqfpn, 7 x 7 mm pakai). IC digital ini termasuk GPIO, antaramuka komunikasi (UART, SPI, I2C), dan pin kuasa. Rujuk dokumen pengeluar untuk fungsi pin alternatif dan opsi konfigurasi. Biasa digunakan dalam rancangan sistem ter嵌入式 dan PCB.
Tiada data garisan pin yang diperoleh untuk STM32G071CBU3.
Rujuk kepada lembaran data untuk konfigurasi pin penuh.
Aplikasi Biasa
STM32G071CBU3 patut untuk 6 aplikasis: Compact Industrial Sensor Interface, Appliance Control Module, Low-Voltage Communications Controller, Digital Control Panel, Building Equipment Controller, Battery-Powered Embedded Device.
Compact Industrial Sensor Interface
The STM32G071CBU3 fits compact sensor-hub and industrial measurement products that need more memory than an entry-level Cortex-M0+ device without using a large microcontroller package. Its 64 MHz core supports responsive acquisition and control tasks, while 128 KB of Flash stores acquisition firmware, configuration logic, communication routines, and update support. The 36 KB of RAM can hold buffers and protocol state. Use the 48-pin UFQFPN for compact analog, digital, and communications connections, while allocating suitable exposed-pad vias and copper for reliable thermal performance.
Disebarkan
Appliance Control Module
The STM32G071CBU3 is appropriate for compact appliance controllers that coordinate user inputs, relays, displays, sensors, and motor-control functions. A 64 MHz Cortex-M0+ core provides practical responsiveness for state machines and real-time control, and the 128 KB Flash capacity accommodates layered application and communication firmware. Its 36 KB SRAM reduces the need for external memory in typical control workloads. The 7 x 7 mm 48-pin UFQFPN also permits controller placement close to the power stage or sensor interface, although exposed-pad heat spreading must be designed into the PCB.
Disebarkan
Low-Voltage Communications Controller
The STM32G071CBU3 can serve as the control processor in compact serial-communication equipment operating from 1.8 V, 2.5 V, or 3.3 V rails. Its 64 MHz core is suitable for protocol framing, buffering, address management, and supervisory logic, while 128 KB of Flash and 36 KB of RAM provide practical headroom for gateway or node firmware. The 48-pin UFQFPN supports a mix of communications, debug, and control connections in a small footprint. Confirm transceiver logic levels, timing tolerance, and firmware interrupt requirements against the final system specification.
Disebarkan
Digital Control Panel
The STM32G071CBU3 is well matched to compact human-interface and digital-control panels that scan buttons, drive indicators, validate inputs, and communicate with a host controller. The Cortex-M0+ processor provides sufficient performance for deterministic scanning and debounce routines, while 128 KB of Flash can hold interface firmware, diagnostics, and configuration data. The 36 KB RAM supports display and communication buffers. Its 48-pin UFQFPN allows a space-efficient layout, but unused pins, ground connections, and exposed-pad vias must follow the manufacturer’s package and layout guidance.
Disebarkan
Building Equipment Controller
The STM32G071CBU3 can be used in compact building-automation equipment such as room controllers, environmental-control modules, and distributed I/O nodes. A 64 MHz Cortex-M0+ core handles sensor polling, control decisions, event logging, and communications, while the larger 128 KB Flash and 36 KB RAM allow richer local functionality than entry-level alternatives. The 7 x 7 mm UFQFPN supports dense terminal-style boards with many mixed-signal connections. Production suitability still depends on the required temperature range, isolation, surge exposure, EMC mitigation, and regulatory testing.
Disebarkan
Battery-Powered Embedded Device
The STM32G071CBU3 is suitable for compact battery-powered sensing and control products when the required processing and memory fit its 64 MHz Cortex-M0+ core, 128 KB Flash, and 36 KB RAM. The device’s multiple low-voltage options, including 1.8 V, 2.5 V, and 3.3 V, simplify integration with different battery and energy-harvesting architectures. Low-power behavior should be evaluated using the manufacturer’s mode-specific current specifications rather than assumed from the maximum clock frequency. The small UFQFPN package also minimizes board area in wearable-adjacent or distributed sensor nodes.
Disebarkan
Ringkasan Produk Disebarkan
Data referensi kejuruteraan untuk STM32G071CBU3 — perbandingan, panduan rancangan, dan maklumat kesediaan
Panduan Pilihan
Perbandingan dengan Gantian
| Parametr | Produk Ini | STM32G071CBU6 | STM32G051CBU6 | STM32G041CBU6 | STM32G031CBU6 |
|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 48-pin UFQFPN, 7 x 7 mm | 48-pin UFQFPN, 7 x 7 mm | 48-pin UFQFPN, 7 x 7 mm | 48-pin UFQFPN, 7 x 7 mm | 48-pin UFQFPN, 7 x 7 mm |
| CPU Core | 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 |
| Flash Memory | 128 KB | 128 KB | 64 KB | 32 KB | 16 KB |
| RAM | 36 KB | 36 KB | 8.2 KB | 6.2 KB | 3.6 KB |
| Operating Voltage Options | 1.8 V / 2.5 V / 3.3 V | 1.8 V / 2.5 V / 3.3 V | 1.8 V / 2.5 V / 3.3 V | 1.8 V / 2.5 V / 3.3 V | 1.8 V / 2.5 V / 3.3 V |
| Ordering and Temperature Code | CBU3 | CBU6 | CBU6 | CBU6 | CBU6 |
| Processor Architecture | 32-bit | 32-bit | 32-bit | 32-bit | 32-bit |
Penyeberangsung Jelas
- Largest Flash capacity among the listed same-package STM32G0 options (vsSTM32G051CBU6)
- Substantially greater SRAM for protocol and control buffers (vsSTM32G041CBU6)
- Eightfold Flash capacity compared with the lowest-memory listed option (vsSTM32G031CBU6)
Catatan Desain
Treat the exposed thermal pad as a mandatory PCB thermal path rather than an optional copper area. Follow the manufacturer land pattern and place a recommended array of thermal vias beneath the pad while keeping those vias clear of sensitive routing. Copper area and via density influence heat spreading from the 64 MHz Cortex-M0+ core, and ambient temperature, switching activity, supply voltage, and peripheral load determine the actual junction condition. Validate the final assembly using the package thermal model and worst-case operating mode.
Place all required decoupling capacitors adjacent to their associated supply pins and keep the high-current return path through the exposed pad electrically short. Separate sensitive analog inputs from fast digital or clock routes where the board architecture permits. The 48-pin UFQFPN has a 7 x 7 mm body, so courtyard, paste, solder mask, and pad-clearance tolerances must be checked against the current manufacturer package drawing before PCB release.
Do not select a same-footprint MCU solely from the number of pins. For every alternative, verify the exact pin names, exposed-pad connection, power pins, ground pins, debug functions, oscillator requirements, boot behavior, peripheral assignments, and maximum pin voltages. Moving from STM32G071CBU3 to a lower-memory G0 device also requires a complete linker, startup, and firmware-memory review because the Flash and SRAM reductions can be substantial.
Maklumat Kesediaan
The product listings identify STMicroelectronics as the manufacturer but do not state the device-specific RoHS, REACH, automotive-qualification, lead-free, halogen-free, or conflict-minerals status.