STM32F091CCU6 - 48MHz 256KB Cortex-M0 MCU | STMicroelectronics
N.º da peça: STM32F091CCU6 ✓ AtivoSTM32F091CCU6 Visão geral
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one device. The STM32F0 family belongs to the MCU, embedded-controller, and semiconductor hierarchy. The STM32F091CCU6 is particularly useful when a design needs deterministic peripheral control, serial communication, and analog signal handling without requiring the processing power or memory of a higher-end Cortex-M processor.
The STM32F091CCU6 operates from 2 V to 3.6 V and executes instructions at up to 48 MHz. Its 256 KB Flash provides room for application firmware, while 32 KB of SRAM supports working data and stack operations. The integrated CRC calculation unit helps protect data integrity in communications and storage-oriented firmware. Its 12 timers support periodic events, input capture, output compare, and other time-based control functions.
Embedded CAN is a major technical feature of this device. According to the STMicroelectronics manufacturer datasheet, the CAN interface complies with CAN 2.0A and CAN 2.0B and supports bit rates up to 1 Mbit/s. It can process standard 11-bit identifiers and extended 29-bit identifiers, making the MCU suitable for distributed control and communication nodes that need both protocol flexibility and compact integration.
Typical uses include industrial control modules, motor and actuator controllers, building automation endpoints, CAN-connected sensors, and compact data-acquisition units. The ADC and DAC can support analog monitoring and signal generation, while the CAN peripheral simplifies communication with remote nodes. Firmware can also use the timer resources for precise periodic control without depending on an external real-time clock.
PCB design should prioritize a short, low-impedance ground return and place decoupling capacitors close to the power pins. The 48-pin exposed-pad UFQFPN requires careful thermal-pad layout and adequate copper area for heat dissipation. Confirm the complete pin assignment, exposed-pad connection, and recommended decoupling network in the manufacturer datasheet before routing the board.
Alternativas drop-in para STM32F091CCU6 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com STM32F091CCU6 (mesmo formato e footprint) — diferindo em Package.
Nenhuma alternativa drop-in disponível para este produto.
Solicitar alternativasSTM32F091CCU6 Classificações máximas e características elétricas
| Product Type | 32-bit ARM Cortex-M0 microcontroller |
| CPU Frequency | 48 MHz |
| Flash Memory | 256 KB |
| SRAM | 32 KB |
| Operating Voltage | 2 V to 3.6 V |
| Programmable Timers | 12 timers |
| CAN Maximum Bit Rate | 1 Mbit/s |
| CAN Standard | CAN 2.0A and CAN 2.0B |
| CAN Frame Formats | 11-bit standard and 29-bit extended identifiers |
| ADC | Integrated analog-to-digital converter |
| DAC | Integrated digital-to-analog converter |
| CRC Unit | Integrated hardware CRC calculation unit |
| Encapsulamento | 48-pin UFQFPN, 7 x 7 mm |
| Tipo de montagem | Surface mount |
| Architecture | 32-bit RISC |
Guia de Configuração de Pinos do STM32F091CCU6 48-pin ufqfpn, 7 x 7 mm
Configuração de pinos para STM32F091CCU6 (pacote 48-pin ufqfpn, 7 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 STM32F091CCU6.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
STM32F091CCU6 é adequado para 6 aplicaçãos: CAN-Connected Industrial Control Node, Precision Timer and Motor-Control Module, Analog Sensor Acquisition Controller, Building Automation Endpoint, Compact Data-Acquisition Unit, Communication Gateway and Protocol Bridge.
CAN-Connected Industrial Control Node
The STM32F091CCU6 fits compact CAN nodes that must combine control logic and communication in one device. Its 48 MHz Cortex-M0 core handles protocol and application tasks, while 256 KB of Flash and 32 KB of SRAM provide room for firmware, configuration data, and working buffers. The CAN controller supports CAN 2.0A, CAN 2.0B, standard and extended identifiers, and communication rates up to 1 Mbit/s. Place the MCU near the bus transceiver, provide proper termination at network endpoints, and validate timing with production tools before deployment.
Precision Timer and Motor-Control Module
The STM32F091CCU6 is well suited to actuator and motor-control modules requiring several independent timing functions. Its 12 timers can organize pulse generation, input capture, output compare, and periodic control tasks, while the 48 MHz Cortex-M0 core executes the control algorithm. The 2 V to 3.6 V operating range is compatible with regulated 3.3 V power systems. The 48-pin UFQFPN also leaves access to analog and digital I/O, although the exposed-pad layout must be designed for reliable thermal transfer.
Analog Sensor Acquisition Controller
The STM32F091CCU6 supports compact sensing modules that need acquisition, processing, and digital communication on a common board. Its integrated ADC accepts analog sensor inputs, the DAC can generate reference or test signals, and the 32 KB SRAM supports buffering and control calculations. The 48 MHz core allows the firmware to filter measurements and respond through CAN or other available interfaces. Design analog and digital return paths carefully, place input components near the MCU, and consult the manufacturer datasheet for the exact ADC characteristics and recommended acquisition network.
Building Automation Endpoint
The STM32F091CCU6 can serve as the local controller in a building-automation node that coordinates sensors, actuators, and remote supervisors. Its 12 timers support periodic sampling and control scheduling, while CAN provides a robust communication path when the system uses a CAN field bus. The 256 KB Flash capacity is useful for protocol stacks, diagnostics, and configurable behaviors, and the compact 48-pin package supports space-constrained equipment. Firmware should include watchdog recovery, brownout handling, and secure field-upgrade procedures for production reliability.
Compact Data-Acquisition Unit
The STM32F091CCU6 is appropriate for a compact acquisition unit that must sample analog signals and forward processed data over a CAN network. Its integrated ADC avoids a separate converter, the hardware CRC unit supports integrity checks, and the 48 MHz processor can handle filtering and packet preparation. The device provides 256 KB of Flash for configuration and application code plus 32 KB of SRAM for acquisition buffers. Accurate measurement results still depend on analog grounding, reference selection, input filtering, and calibration established with the manufacturer datasheet electrical characteristics.
Communication Gateway and Protocol Bridge
The STM32F091CCU6 can form the core of a protocol gateway where CAN traffic must be validated, transformed, or routed to another embedded subsystem. Its 48 MHz Cortex-M0 core provides enough performance for deterministic protocol processing, while the CRC hardware supports integrity validation and the 32 KB SRAM accommodates transient frames. The 256 KB Flash allows meaningful protocol and diagnostic firmware to coexist. During development, verify interrupt latency, buffer limits, bootloader behavior, and CAN error handling under worst-case bus traffic.
Dados de referência de engenharia para STM32F091CCU6 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto |
|---|---|
| CPU Core | ARM Cortex-M0 |
| Maximum CPU Frequency | 48 MHz |
| Flash Memory | 256 KB |
| SRAM | 32 KB |
| Operating Voltage | 2 V to 3.6 V |
| Timers | 12 timers |
| CAN Maximum Bit Rate | 1 Mbit/s |
| Package | 48-pin UFQFPN, 7 x 7 mm |
| Brand | STMicroelectronics |
Principais diferenciais
- Higher Flash capacity within the referenced 48-pin comparison (vs STM32F072CBU6)
- More embedded code and data storage (vs STM32F042C4U6)
- 12-timer integration with CAN, ADC, and DAC (vs STM32F072CBU6)
Notas de projeto
Use the pin-description table in the manufacturer datasheet to assign every UFQFPN net before placing decoupling capacitors. Position the input and output capacitors as close as practical to their associated supply pins, provide a continuous ground reference under the device, and avoid routing sensitive analog inputs beside CAN switching or high-current outputs.
Treat the exposed pad as a thermal and electrical structure rather than an optional copper feature. Follow the manufacturer land-pattern and exposed-pad requirements, use the maximum recommended copper area compatible with the PCB layout, and verify that the exposed pad connection matches the selected power and grounding scheme. Validate junction temperature under the highest ambient and processor-load conditions.
Keep the CAN transceiver and its protection network close to the connector or field-bus interface, while maintaining a controlled return path to the MCU ground reference. Apply the transceiver guidance from the manufacturer documentation for termination, split termination, common-mode choke selection, and loop geometry. Firmware should also handle bus-off recovery because electrical integrity alone cannot prevent every network fault.
Power the STM32F091CCU6 from a regulated source within its 2 V to 3.6 V operating range. Confirm startup, reset, and brownout behavior using the manufacturer electrical-characteristics table, and ensure the supply remains valid during CAN transmit events. Separate noisy transceiver supplies from sensitive analog sections where the board architecture permits, while grounding the sections according to the reference design.
Do not treat mechanically similar STM32F0 devices as automatic replacements. Flash density, SRAM, pin multiplexing, clock configuration, peripheral availability, boot behavior, and exposed-pad requirements can differ even when the package designation is identical. For upgrades or second sourcing, compare the complete device tables and recompile firmware for the selected part rather than assuming binary compatibility.
Informações de conformidade
No explicit compliance declarations were identified for this exact ordering code. AEC-Q100 is marked not_applicable because no automotive qualification was identified; verify the ordering code and environmental requirements with the manufacturer before production release.