STM32F303CCT7 - 72MHz Cortex-M4 MCU, 256KB Flash | STMicroelectronics
料号： STM32F303CCT7 ✓ 量产中STM32F303CCT7 概述
A microcontroller is a programmable semiconductor that integrates a processor core, memory, peripherals, and interface circuitry on one device. The STM32F3 family sits within the Arm Cortex-M microcontroller hierarchy and combines real-time control performance with analog signal acquisition. STM32F303CCT7 is therefore suited to systems that require both digital computation and direct measurement or conditioning of analog signals.
The device operates at up to 72 MHz and provides 256 KB of Flash for firmware and nonvolatile data storage. Its mixed-signal resources include a 12-bit ADC capable of 5 MSPS, a programmable gain amplifier, and comparators. These features support motor-control, industrial monitoring, sensor acquisition, power-conversion control, and embedded signal-processing designs. The manufacturer identifies the STM32F303CC as an active mainstream product.
The Cortex-M4 core includes DSP instruction support and a floating-point unit, as indicated by the Arm Cortex-M4F designation used for this device in distributor listings. Mixed-signal integration can reduce the need for separate analog and digital components, but firmware must configure the ADC, comparator, PGA, clock tree, and communications peripherals correctly. Exact peripheral availability, interrupt assignments, and electrical limits should be checked in the manufacturer datasheet before final design release.
Typical application blocks include three-phase motor drive, industrial sensor interfaces, digital power conversion, communications modules, and compact embedded control systems. In each case, the 72 MHz processor provides control-loop headroom while the ADC and comparators support feedback and protection functions. The 256 KB Flash capacity also allows substantially larger control programs, lookup tables, and protocol stacks than many entry-level microcontrollers.
PCB implementation should preserve the 48-LQFP land pattern, decoupling requirements, clock stability, analog grounding, and exposed-pin assignments defined by STMicroelectronics. Keep analog inputs away from fast digital nets, provide local supply bypassing at the device pins, and follow the recommended external-component network for analog performance. A hardware design should also include the appropriate programming and debug interface for firmware development.
This product page combines the exact manufacturer and distributor specifications with engineering guidance on mixed-signal layout, firmware integration, package compatibility, and substitution limits. It also distinguishes a true same-footprint replacement from merely similar STM32 controllers, helping designers protect schedule, PCB compatibility, and production validation when sourcing alternatives.
直接替换替代料： STM32F303CCT7 ——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： STM32F303CCT7 （相同外形与封装尺寸） ——差异在于 ADC Resolution, Flash Memory, Package.
STM32F303CCT6
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →STM32F303CCT7 最大额定值与电气特性
| Product Type | 32-bit mixed-signal microcontroller |
| Manufacturer | STMicroelectronics |
| Processor Core | Arm Cortex-M4 with DSP and FPU |
| CPU Maximum Frequency | 72 MHz |
| Word Size | 32 bit |
| Flash Memory | 256 KB (256K x 8) |
| ADC Resolution | 12 bit |
| ADC Maximum Sampling Rate | 5 MSPS |
| Programmable Gain Amplifier | Present |
| Comparators | Present |
| Memory Protection Unit | Present |
| CCM | Present |
| 封装 | 48-LQFP (7 x 7 mm) |
| 安装类型 | Surface mount |
| 电源电压 | 2.5 V to 3.3 V |
STM32F303CCT7 48-lqfp (7 x 7 mm) 引脚配置指南
STM32F303CCT7（48-lqfp (7 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： STM32F303CCT7.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STM32F303CCT7 适用于 6 应用s: Three-Phase Motor Control, Industrial Sensor Acquisition, Digital Power Conversion, Condition Monitoring, Communications Gateway, Embedded Signal Processing.
Three-Phase Motor Control
STM32F303CCT7 fits three-phase motor control because its 72 MHz Arm Cortex-M4F core provides DSP and floating-point processing for control algorithms, while the 12-bit ADC supports feedback measurement at rates up to 5 MSPS. The comparators can assist with fast protection decisions, and the PGA can condition sensor signals before conversion. Place current and voltage-sense channels according to the package pinout and isolate analog routing from switching-node transitions. Firmware should validate timer outputs, ADC synchronization, dead time, and fault handling before enabling the bridge. The 256 KB Flash also provides room for parameter tables, diagnostics, and communication services, although motor-drive qualification and protection testing remain essential.
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Industrial Sensor Acquisition
STM32F303CCT7 is suitable for industrial sensor acquisition when the system must combine measurement and local processing in one device. The 12-bit ADC can sample at up to 5 MSPS, while the PGA and comparators support analog conditioning and threshold functions. The 72 MHz Cortex-M4F core can filter, compensate, and package sensor readings without a separate processor. Designers should establish an analog reference and grounding strategy, keep high-impedance sensor paths short, and consult the manufacturer datasheet for the recommended ADC input network and sampling requirements. Firmware also needs calibration, saturation detection, and diagnostics so a failed or drifting sensor does not create an unsafe control command.
推荐
Digital Power Conversion
STM32F303CCT7 supports digital power-conversion control by combining a 72 MHz Cortex-M4F control engine with a 12-bit 5 MSPS ADC and comparators. These resources allow a controller to regulate a switching converter, monitor feedback voltage or current, and react quickly to comparator events. The 256 KB Flash is useful for compensation tables, state machines, communications, and fault logging. A practical design must separate noisy switching power paths from analog sensing, route feedback traces away from inductors and switch nodes, and provide local decoupling at the MCU. Exact timer channels, ADC channels, comparator inputs, and electrical limits must be confirmed in the manufacturer datasheet before assigning the control loop.
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Condition Monitoring
STM32F303CCT7 is appropriate for compact condition-monitoring equipment that must acquire vibration, current, or voltage data and evaluate it locally. The 72 MHz Cortex-M4F core can run digital filters and feature extraction, while the 12-bit ADC supports high-rate sampling and the comparators can implement fast threshold or protection paths. The 256 KB Flash accommodates application code, lookup data, and event records, while CCM can serve data-intensive workloads when configured correctly. Keep sensor excitation and analog front-end routing away from digital clocks, and follow the manufacturer layout guidance for grounding and decoupling. Production firmware should include sensor-health checks, overload detection, and safe outputs whenever a measurement leaves its valid range.
推荐
Communications Gateway
STM32F303CCT7 can serve as the controller in a small industrial communications gateway that must acquire local data and manage a network interface. Its Cortex-M4F core supports the DSP instructions and floating-point unit useful in protocol handling, signal processing, and real-time control tasks, while 256 KB Flash provides room for firmware and communication tables. The mixed-signal peripherals allow the gateway to monitor line conditions or sensor inputs without a separate MCU. Designers should assign communication pins according to the manufacturer pinout, provide proper interface-level protection, and isolate analog and high-speed digital routes. Validate peripheral availability, interrupt priorities, and timing constraints in the manufacturer datasheet before selecting it for a specific network protocol.
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Embedded Signal Processing
STM32F303CCT7 fits embedded signal-processing systems that combine fast acquisition with local computation. Its 12-bit ADC operates at up to 5 MSPS, and the 72 MHz Cortex-M4F core provides DSP instructions and a floating-point unit for filters, transforms, and control calculations. The PGA can improve analog conditioning for appropriately selected signal ranges, while comparators can support fast event detection. The 256 KB Flash is suitable for application firmware and fixed coefficients, though larger waveform buffers may require the CCM or external memory configuration. Use the manufacturer pinout to place analog inputs, maintain controlled reference and grounding, and review conversion timing, input bandwidth, and oversampling behavior before establishing the final sampling architecture.
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工程参考数据： STM32F303CCT7 ——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 | STM32F303CCT6 |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Package | 48-LQFP (7 x 7 mm) | 48-LQFP (7 x 7 mm) |
| CPU Core | Arm Cortex-M4 with DSP and FPU | Arm Cortex-M4 with DSP and FPU |
| Maximum CPU Frequency | 72 MHz | 72 MHz |
| Flash Memory | 256 KB | 256 KB |
| ADC | 12-bit, up to 5 MSPS | 12-bit, up to 5 MSPS |
| Mixed-Signal Resources | MPU, CCM, PGA, and comparators | MPU, CCM, PGA, and comparators |
| Temperature Grade | T7 grade | T6 grade |
| Supply Voltage | 2.5 V to 3.3 V | 2.5 V to 3.3 V |
关键差异点
- Retains extended-temperature ordering option （对比 STM32F303CCT6)
- Matches the STM32F303CC mixed-signal architecture （对比 STM32F303CCT6)
- Supports compact high-speed control and acquisition （对比 STM32F303CCT6)
设计说明
Implement the 48-LQFP footprint and analog layout directly from the manufacturer package drawing and pin-description table. Place local supply capacitors at the appropriate power pins, route sensitive ADC inputs as short and quiet as practical, and keep comparator and PGA signals away from switching nodes. Confirm every pin assignment and exposed termination against the current manufacturer documentation before releasing the PCB.
The 12-bit ADC, PGA, and comparators make analog layout performance-dependent rather than connection-dependent. Use a controlled reference and grounding strategy, account for source impedance and acquisition time, and place analog conditioning components close to the MCU pins. Validate the selected conversion rate with the actual front end because bandwidth, settling time, and switching noise can determine whether the 5 MSPS capability is usable.
Do not treat STM32F303CCT6 as an unconditional substitute for STM32F303CCT7. The devices share the principal package and memory configuration, but the suffix indicates a different temperature grade. Review the product's worst-case ambient and enclosure temperatures, then confirm electrical limits, qualification, and approved-part requirements. Firmware and peripheral configuration should also be regression-tested after any substitution.
Follow the manufacturer guidance for supply pins, internal regulator configuration, decoupling, and power-up sequencing. The 2.5 V to 3.3 V operating range does not remove the need to check pin-level voltage limits and analog-versus-digital supply requirements. Use a clean source for the analog reference and monitor brownout behavior so the control firmware enters a defined state before rails fall outside their valid operating region.
合规信息
Compliance status was not stated in the manufacturer or distributor content for this exact MPN. Check the current manufacturer product page and material-declaration documentation before release.