STM32G081CBU6 - 64MHz Cortex-M0+ 128KB MCU | STMicroelectronics
N.º da peça: STM32G081CBU6 ✓ AtivoSTM32G081CBU6 Visão geral
A microcontroller is an integrated circuit that combines a processor core, program memory, data memory, peripherals, and interface controls on one device. The STM32G0 family belongs to the Arm Cortex-M0+ microcontroller hierarchy, where the M0+ core emphasizes energy-efficient embedded processing and broad peripheral integration. The STM32G081CBU6 is therefore suited to compact control products that need more local processing than a basic logic controller but do not require a higher-performance Cortex-M core.
The principal specifications include a maximum 64 MHz core frequency, 128 KB of programmable Flash, 36 KB of SRAM, and four USART peripherals. Flash protection and a securable area support controlled firmware access, while hardware parity checking covers 32 KB of the SRAM. The 48-pin UFQFPN package provides a practical route to compact industrial, consumer, and embedded-control designs without requiring a large leaded package.
The STM32G081xB architecture combines the Cortex-M0+ core with dedicated communication and timing resources. The four USART channels allow simultaneous serial links for sensors, external radios, meters, service interfaces, or debug and programming adapters. Operating-temperature options include 85 °C, 105 °C, and 125 °C grades, allowing the same device family to address commercial, industrial, and extended-temperature environments.
Typical applications include compact sensor controllers, building-entry and access-control modules, industrial monitoring equipment, motor supervisory controllers, serial-to-network gateways, and low-cost human-machine interfaces. The 64 MHz processor also supports protocol handling and real-time control while retaining a small package and straightforward embedded software architecture.
Design around the manufacturer's pin-definition table when assigning the 48-pin footprint, and confirm the exposed-pad connection and thermal-land requirements in the package drawing. Decoupling should follow the recommended input, output, and power-supply network in the manufacturer datasheet. Validate startup, clock, low-power, and peripheral assignments in firmware before releasing the PCB to production.
This page combines the STM32G081CBU6 core, memory, interface, package, and lifecycle details with a focused drop-in comparison, application guidance, and design notes. It helps engineers determine whether this UFQFPN microcontroller fits a specific embedded-control design and identify which constraints must be checked before substitution.
Alternativas drop-in para STM32G081CBU6 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
STM32G071CBT3TR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
STM32G081CBU6 Classificações máximas e características elétricas
| Product Type | 32-bit Arm Cortex-M0+ microcontroller |
| Processor Core | Arm Cortex-M0+ |
| Maximum CPU Frequency | 64 MHz |
| Instruction Width | 32 bit |
| Flash Memory | 128 KB |
| SRAM | 36 KB |
| SRAM with Hardware Parity Check | 32 KB |
| USART Count | 4 |
| Tensão de alimentação | 2.5 V to 3.3 V |
| Operating Temperature Options | -40 °C to 85 °C, -40 °C to 105 °C, or -40 °C to 125 °C |
| Encapsulamento | 48-pin UFQFPN |
| Package Dimensions | 7 mm x 7 mm |
| Tipo de montagem | Surface mount |
| Flash Protection | Supported |
| Securable Memory Area | Supported |
| Product Status | Active |
Guia de Configuração de Pinos do STM32G081CBU6 7 mm x 7 mm
Configuração de pinos para STM32G081CBU6 (pacote 7 mm x 7 mm). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para STM32G081CBU6.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
STM32G081CBU6 é adequado para 6 aplicaçãos: Compact Sensor Controller, Building Access Controller, Industrial Sensor Gateway, Serial-to-Network Interface, Motor Supervisory Controller, Compact Data Acquisition Unit.
Compact Sensor Controller
The STM32G081CBU6 fits a compact sensor controller because its 64 MHz Cortex-M0+ core can sample, filter, and format measurements while its 128 KB Flash stores application firmware and 36 KB SRAM supports working buffers. Four USART channels simplify connections to external sensors, transceivers, and service ports. The 48-pin 7 x 7 mm UFQFPN package limits board area, although exposed-pad construction and the 2.5 V to 3.3 V supply range require careful PCB planning.
Recomendado
Building Access Controller
The STM32G081CBU6 can support a compact building-access peripheral by combining local decision logic with four USART interfaces for readers, locks, alarm modules, and configuration equipment. Its 64 MHz Cortex-M0+ processing is appropriate for protocol handling and event management, while flash protection and a securable area support access-controlled firmware. The 48-pin UFQFPN package supports dense panels, and its operating-temperature options allow selection for environments extending to 85 °C, 105 °C, or 125 °C.
Recomendado
Industrial Sensor Gateway
The STM32G081CBU6 is well matched to an industrial sensor gateway that must aggregate several serial sensor channels and perform local preprocessing. Four USART peripherals provide practical communication capacity, the 64 MHz core handles framing and protocol tasks, and 36 KB of SRAM reduces external memory requirements. Its 48-pin 7 x 7 mm package simplifies compact DIN-panel electronics, while the 125 °C-grade option supports appropriately designed industrial equipment with suitable protection and thermal design.
Recomendado
Serial-to-Network Interface
The STM32G081CBU6 can serve as the control processor in a compact serial-to-network interface by using its USART channels to collect data from field devices and its Cortex-M0+ core to manage framing, buffering, and status handling. The 128 KB Flash capacity accommodates networking and update firmware, while 36 KB SRAM supports packet processing. The small UFQFPN footprint helps reduce enclosure size, but network timing, auxiliary interface availability, and firmware drivers must be confirmed for the selected network device.
Recomendado
Motor Supervisory Controller
The STM32G081CBU6 is suitable for supervisory functions in compact motor-control products where a separate controller handles power conversion. Its 64 MHz processor can execute state-machine logic, process feedback, and coordinate USART-connected power electronics or diagnostic modules. The 36 KB SRAM and 128 KB Flash provide embedded application space, and the 7 x 7 mm UFQFPN package supports space-constrained assemblies. Exact timer channels, analog functions, and pin assignments must be checked before implementing timing-critical control.
Recomendado
Compact Data Acquisition Unit
The STM32G081CBU6 supports a compact data-acquisition unit where several external sensors or instruments require serial aggregation. Four USART ports can reduce the number of discrete communication controllers, while the 64 MHz Cortex-M0+ core handles sampling coordination and local filtering. The 128 KB Flash and 36 KB SRAM provide a balanced embedded platform, and the compact UFQFPN package supports portable or panel-mounted products. Validation should focus on interrupt latency, serial timing, thermal margins, and analog-measurement accuracy.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para STM32G081CBU6 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | STM32G071CBT3TR |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Package | 48-pin UFQFPN, 7 mm x 7 mm | 48-pin UFQFPN |
| Processor Core | Arm Cortex-M0+ | Arm Cortex-M0+ |
| Maximum CPU Frequency | 64 MHz | 64 MHz |
| Flash Memory | 128 KB | 128 KB |
| Lifecycle Status | Active | Active |
Principais diferenciais
- Four-USART integration in a compact package (vs STM32G071CBT3TR)
- Defined flash-access features (vs STM32G071CBT3TR)
- Hardware-protected SRAM region (vs STM32G071CBT3TR)
Notas de projeto
Assign all 48 UFQFPN nets from the STM32G081CB manufacturer pin-definition table, including the exposed thermal pad. The 7 x 7 mm footprint has fine-pitch leads and a central thermal area, so inspect land geometry and solder-mask clearance against the package drawing before release. Confirm that the thermal pad is connected according to the selected device's recommended layout rather than assuming a universal ground arrangement.
Design the supply around the documented 2.5 V to 3.3 V operating range and place the required decoupling capacitors close to their associated supply pins. Follow the manufacturer pin table when separating analog, digital, and I/O reference connections. Power sequencing, startup behavior, and current limits should be checked against the electrical-characteristics tables for the exact temperature-grade ordering code.
Route the 64 MHz control path and communication signals with short return paths, particularly around external crystals, oscillators, and high-speed serial interfaces. Keep noisy switching or radio circuitry away from sensitive sensor inputs and use the documented ground and power arrangements. Because alternate-function mapping depends on the exact pin configuration, freeze MCU assignments before finalizing the component placement and board routing.
Do not treat a shared 48-pin footprint as proof that every STM32G0 peripheral mapping is identical. Before substituting STM32G071CBT3TR, compare the complete pin list, USART count, timer resources, analog functions, clock configuration, flash behavior, low-power modes, temperature limits, and exposed-pad requirements. Port the firmware and test all production interfaces rather than relying only on the shared Cortex-M0+ core and memory rating.
Informações de conformidade
No specific compliance declarations were identified in the product information used for this page. Confirm RoHS, REACH, AEC-Q100 qualification, lead-free, halogen-free, and conflict-minerals status for the exact ordering code before environmental or automotive release.