STM32F302RCT6 - 256KB Flash ARM Cortex-M4F MCU | STMicroelectronics
MPN： STM32F302RCT6 ✓ 啟用中STM32F302RCT6 概覽
What is a microcontroller? A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory (flash and SRAM), and programmable input/output peripherals on a single chip. Microcontrollers are the backbone of modern embedded systems, from automotive engine control units to consumer electronics and industrial automation. The STM32F302RCT6 belongs to the STM32F3 series, which is optimized for mixed-signal control applications, combining an ARM Cortex-M4F core with advanced analog peripherals.
Key features of the STM32F302RCT6 include a 12-bit ADC with up to 5 MSPS, two 12-bit DACs, three operational amplifiers, and a 16-bit advanced-control timer. It also provides multiple communication interfaces: I2C, SPI, USART, CAN, and USB. The device supports a temperature range of -40°C to +85°C and is available in a 64-pin LQFP package, which is suitable for space-constrained designs.
The STM32F302RCT6 leverages the ARM Cortex-M4F core with DSP instructions and a single-precision FPU, enabling efficient execution of complex algorithms such as digital signal processing and motor control. The device includes a memory protection unit (MPU) and a nested vectored interrupt controller (NVIC) for real-time performance. Its advanced analog peripherals, including a 5 MSPS ADC and fast comparators, make it ideal for applications requiring high-speed data acquisition and precise control.
Typical applications include motor control, power conversion, industrial automation, and consumer electronics. The device's rich analog feature set and CAN interface make it particularly well-suited for automotive and industrial control systems. Its low-power modes and wide operating voltage range also support battery-powered portable devices.
When designing with the STM32F302RCT6, ensure proper decoupling of the power supply pins with 100 nF capacitors placed close to each VDD pin. The VDDA pin should be connected to a clean analog supply, and the VREF+ pin should be decoupled with a 1 µF capacitor. For reliable operation, the NRST pin should be pulled high with a 10 kΩ resistor and a 100 nF capacitor to ground.
直接替換替代品，適用於 STM32F302RCT6 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： STM32F302RCT6 （相同外形與佔位） — 差異在於 Package, SRAM, Flash Memory, Comparators, Communication Interfaces.
STM32F302RCT7
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32F303RCT6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM32F301RCT6
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32F302RBT6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM32F302R8T6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM32F303RBT6
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32F303R8T6
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32F301RBT6
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32F301R8T6
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32F302RCT6TR
✅ 直接替換📋 參考替代品（不在目錄中）
STM32F302RCT6 最大額定值與電氣特性
| Core | ARM Cortex-M4F with FPU |
| 最大時脈頻率 | 72 MHz |
| Flash Memory | 256 KB |
| SRAM | 40 KB |
| Supply Voltage Range | 2.0 V to 3.6 V |
| 封裝 | LQFP64 (10x10 mm) |
| 工作溫度範圍 | -40°C to +85°C |
| ADC Resolution | 12-bit |
| ADC Sample Rate | 5 MSPS |
| DAC Resolution | 12-bit |
| Number of DAC Channels | 2 |
| Number of Operational Amplifiers | 3 |
| Communication Interfaces | I2C, SPI, USART, CAN, USB |
| Number of Timers | 8 (including advanced-control timer) |
| GPIO Pins | 51 |
| RoHS 狀態 | Compliant |
STM32F302RCT6 腳位配置
| 腳位 1 | VBAT — Battery backup supply |
| 腳位 2 | PC13 — GPIO / RTC output |
| 腳位 3 | PC14 — GPIO / OSC32_IN |
| 腳位 4 | PC15 — GPIO / OSC32_OUT |
| 腳位 5 | PF0 — GPIO / OSC_IN |
| 腳位 6 | PF1 — GPIO / OSC_OUT |
| 腳位 7 | NRST — Reset (active low) |
| 腳位 8 | VSSA — Analog ground |
| 腳位 9 | VDDA — Analog power supply |
| 腳位 10 | PA0 — GPIO / ADC_IN0 |
| 腳位 11 | PA1 — GPIO / ADC_IN1 |
| 腳位 12 | PA2 — GPIO / USART2_TX |
| 腳位 13 | PA3 — GPIO / USART2_RX |
| 腳位 14 | PA4 — GPIO / DAC_OUT1 |
| 腳位 15 | PA5 — GPIO / DAC_OUT2 |
| 腳位 16 | PA6 — GPIO / TIM3_CH1 |
| 腳位 17 | PA7 — GPIO / TIM3_CH2 |
| 腳位 18 | PC4 — GPIO / ADC_IN4 |
| 腳位 19 | PC5 — GPIO / ADC_IN5 |
| 腳位 20 | PB0 — GPIO / ADC_IN8 |
| 腳位 21 | PB1 — GPIO / ADC_IN9 |
| 腳位 22 | PB2 — GPIO / BOOT1 |
| 腳位 23 | PB10 — GPIO / I2C2_SCL |
| 腳位 24 | PB11 — GPIO / I2C2_SDA |
| 腳位 25 | VSS_1 — Ground |
| 腳位 26 | VDD_1 — Power supply |
| 腳位 27 | PB12 — GPIO / SPI2_NSS |
| 腳位 28 | PB13 — GPIO / SPI2_SCK |
| 腳位 29 | PB14 — GPIO / SPI2_MISO |
| 腳位 30 | PB15 — GPIO / SPI2_MOSI |
| 腳位 31 | PC6 — GPIO / TIM3_CH1 |
| 腳位 32 | PC7 — GPIO / TIM3_CH2 |
| 腳位 33 | PC8 — GPIO / TIM3_CH3 |
| 腳位 34 | PC9 — GPIO / TIM3_CH4 |
| 腳位 35 | PA8 — GPIO / MCO |
| 腳位 36 | PA9 — GPIO / USART1_TX |
| 腳位 37 | PA10 — GPIO / USART1_RX |
| 腳位 38 | PA11 — GPIO / USB_DM |
| 腳位 39 | PA12 — GPIO / USB_DP |
| 腳位 40 | PA13 — GPIO / SWDIO |
| 腳位 41 | VSS_2 — Ground |
| 腳位 42 | VDD_2 — Power supply |
| 腳位 43 | PA14 — GPIO / SWCLK |
| 腳位 44 | PA15 — GPIO / JTDI |
| 腳位 45 | PB3 — GPIO / JTDO |
| 腳位 46 | PB4 — GPIO / NJTRST |
| 腳位 47 | PB5 — GPIO / I2C1_SMBA |
| 腳位 48 | PB6 — GPIO / I2C1_SCL |
| 腳位 49 | PB7 — GPIO / I2C1_SDA |
| 腳位 50 | BOOT0 — Boot mode selection |
| 腳位 51 | PB8 — GPIO / CAN_RX |
| 腳位 52 | PB9 — GPIO / CAN_TX |
| 腳位 53 | VSS_3 — Ground |
| 腳位 54 | VDD_3 — Power supply |
| 腳位 55 | PC10 — GPIO / USART3_TX |
| 腳位 56 | PC11 — GPIO / USART3_RX |
| 腳位 57 | PC12 — GPIO / USART3_CK |
| 腳位 58 | PD2 — GPIO / TIM3_ETR |
| 腳位 59 | PC0 — GPIO / ADC_IN10 |
| 腳位 60 | PC1 — GPIO / ADC_IN11 |
| 腳位 61 | PC2 — GPIO / ADC_IN12 |
| 腳位 62 | PC3 — GPIO / ADC_IN13 |
| 腳位 63 | VREF+ — ADC reference voltage |
| 腳位 64 | VREF- — ADC reference ground |
典型應用
STM32F302RCT6 適用於 6 應用s: Motor Control, Power Conversion, Industrial Automation, Consumer Electronics, Automotive, Medical Devices.
Motor Control
The STM32F302RCT6 is ideal for motor control applications due to its advanced-control timer, high-speed ADC (5 MSPS), and fast comparators. It supports sensorless and sensor-based control of BLDC, PMSM, and AC induction motors. The device's FPU enables efficient execution of complex control algorithms like field-oriented control (FOC). In a typical motor drive, the MCU reads phase currents via the ADC, processes them with the FPU, and generates PWM signals via the advanced timer. The high-speed ADC ensures accurate current sensing, while the comparators provide overcurrent protection. The CAN interface allows communication with higher-level controllers in industrial or automotive systems. Designers should ensure proper isolation and filtering of the analog inputs to maintain signal integrity.
推薦
Power Conversion
The STM32F302RCT6 is well-suited for power conversion applications such as digital power supplies, inverters, and battery chargers. Its high-speed ADC and advanced timers enable precise control of switching converters. The device's FPU supports complex control algorithms like PID and state-space control. In a typical digital power supply, the MCU samples the output voltage and current via the ADC, computes the control signal, and generates PWM via the timer. The fast comparators can be used for peak current mode control. The wide operating voltage range (2.0V to 3.6V) allows direct operation from a 3.3V rail. Designers should pay attention to the ADC sampling time and PWM resolution to achieve high efficiency and low ripple.
推薦
Industrial Automation
The STM32F302RCT6 is a robust choice for industrial automation, including PLCs, process control, and robotics. Its CAN interface enables communication in industrial networks, while the multiple USART, SPI, and I2C interfaces connect to sensors and actuators. The device's wide temperature range (-40°C to +85°C) ensures reliable operation in harsh environments. In a typical PLC, the MCU reads digital and analog inputs, executes control logic, and drives outputs. The high-speed ADC and comparators are useful for fast fault detection. The FPU accelerates mathematical computations for control algorithms. Designers should implement proper ESD protection and galvanic isolation for industrial interfaces.
推薦
Consumer Electronics
The STM32F302RCT6 is used in consumer electronics such as smart home devices, wearables, and audio equipment. Its low-power modes and wide voltage range support battery-powered designs. The device's USB interface enables direct connection to hosts for charging or data transfer. In a smart home hub, the MCU manages sensors, communicates via Wi-Fi or Bluetooth modules, and controls actuators. The FPU is useful for audio processing, such as equalization or noise cancellation. The DACs can generate analog audio signals. Designers should optimize power consumption by using sleep modes and efficient clock management.
推薦
Automotive
The STM32F302RCT6 is suitable for automotive applications such as body control modules, battery management systems, and motor control for electric power steering. Its CAN interface is essential for in-vehicle networking. The device's high-speed ADC and comparators are used for current and voltage sensing. The wide temperature range and robust design meet automotive requirements. In a battery management system, the MCU monitors cell voltages and temperatures, balances cells, and communicates with the main controller via CAN. The FPU enables efficient state-of-charge estimation algorithms. Designers should follow AEC-Q100 guidelines and ensure proper protection against automotive transients.
推薦
Medical Devices
The STM32F302RCT6 is used in medical devices such as patient monitors, infusion pumps, and diagnostic equipment. Its high-speed ADC and low-power modes are beneficial for battery-operated devices. The device's FPU supports signal processing for vital sign monitoring. In a patient monitor, the MCU acquires ECG or SpO2 signals via the ADC, processes them with digital filters, and displays results on a screen. The communication interfaces allow data transfer to a central station. Designers must ensure compliance with medical safety standards and implement redundant safety features.
推薦
推薦產品摘要
工程參考資料，適用於 STM32F302RCT6 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | STM32F302RCT7 | STM32F303RCT6 | STM32F301RCT6 |
|---|---|---|---|---|
| Package | LQFP64 | LQFP64 | LQFP64 | LQFP64 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F |
| Max Clock Frequency | 72 MHz | 72 MHz | 72 MHz | 72 MHz |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB |
| SRAM | 40 KB | 40 KB | 40 KB | 40 KB |
| ADC Sample Rate | 5 MSPS | 5 MSPS | 7.2 MSPS | 5 MSPS |
| Number of DAC Channels | 2 | 2 | 2 | 0 |
| CAN Interface | Yes | Yes | Yes | No |
主要差異化特點
- High-speed ADC with 5 MSPS (對比STM32F301RCT6)
- Dual DAC channels (對比STM32F301RCT6)
- CAN interface (對比STM32F301RCT6)
設計說明
Decouple each VDD pin with a 100 nF ceramic capacitor placed as close as possible to the pin. Additionally, connect a 4.7 µF capacitor to the main power rail. The VDDA pin should be connected to a clean analog supply, and VREF+ should be decoupled with a 1 µF capacitor. For battery-powered designs, use the low-power modes (Sleep, Stop, Standby) to reduce current consumption.
For the LQFP64 package, ensure proper solder paste stencil design to avoid solder bridging. Use a 0.5 mm pitch land pattern. Place the crystal oscillator (if used) close to the OSC_IN/OSC_OUT pins and keep the trace lengths short. For the ADC, route analog inputs away from digital traces to minimize noise coupling.
Do not exceed the absolute maximum ratings for VDD (4.0V) or VDDA (4.0V). Ensure the NRST pin is pulled high with a 10 kΩ resistor and a 100 nF capacitor to ground to prevent spurious resets. When using the USB interface, ensure proper impedance matching on the DP/DM lines (90 Ω differential).
合規資訊
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified; for automotive, consider STM32F302RCT7 or other automotive-grade variants.
