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STMicroelectronics STM32F302RCT6
- Part No.:
- STM32F302RCT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32F302RCT6.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:992
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Product details
Overview
STM32F302RCT6 from STMicroelectronics is an Arm® Cortex®-M4 32-bit microcontroller with FPU, operating up to 72 MHz, featuring 256 KB Flash, 40 KB SRAM (16 KB with HW parity), dual 12-bit ADCs (0.20 µs conversion), one 12-bit DAC, four rail-to-rail comparators, two programmable-gain operational amplifiers, and integrated CAN 2.0B interface - deployed in motor control systems requiring real-time analog signal conditioning and closed-loop timing.
For engineers reviewing the STM32F302RCT6 datasheet, STM32F302RCT6 pinout, STM32F302RCT6 application, or STM32F302RCT6 equivalent, key selection criteria include its 64-pin LQFP package, 2.0–3.6 V supply range, 12-channel DMA, capacitive touch sensing support, and hardware-accelerated DSP instructions for embedded control firmware development.
Technical Context
The device integrates a Cortex-M4 core with single-cycle multiply, hardware divide, and memory protection unit (MPU), enabling deterministic real-time execution in safety-aware industrial firmware. Its analog subsystem includes two independent ADCs with selectable 6/8/10/12-bit resolution, differential input capability, and dedicated 2–3.6 V analog supply domain.
Clock architecture supports multiple sources: 4–32 MHz external crystal, 32 kHz RTC oscillator with calibration, 8 MHz internal RC with x16 PLL, and 40 kHz low-power RC - allowing flexible trade-offs between accuracy, startup time, and power consumption across Run, Stop, and Standby modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 72 MHz max - enables floating-point math for motor control algorithms without software emulation overhead. |
| Flash Memory | 256 KB - sufficient for complex field-oriented control (FOC) firmware with bootloader, safety monitoring, and communication stacks. |
| SRAM | 40 KB total, 16 KB with hardware parity - supports real-time data buffers and fault-tolerant variable storage in industrial environments. |
| ADC Performance | Two 12-bit ADCs, 0.20 µs conversion time, 17-channel multiplexing - allows simultaneous sampling of current, voltage, and temperature in three-phase motor drives. |
| DAC Output | One 12-bit DAC, 2.4–3.6 V analog supply - provides precise reference generation for analog feedback loops or sensor calibration signals. |
| Operational Amplifiers | Two rail-to-rail OPAMPs configurable as PGAs - enable direct current-sense amplification with programmable gain before ADC digitization. |
| Communication Interfaces | CAN 2.0B, 5× USART/UART, 3× SPI (2 with I2S), 2× I²C Fast Mode Plus - supports multi-node industrial networks, encoder interfaces, and audio-capable human-machine interfaces. |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog power supply | Separate 2.0–3.6 V domains ensure clean analog reference for ADC/DAC/OPAMP operation without digital noise coupling. |
| VSS, VSSA | Digital & analog ground | Independent ground pins reduce return-path interference between high-speed digital logic and precision analog circuits. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 51 fast I/Os, many 5 V-tolerant - simplify level-shifting in mixed-voltage industrial subsystems. |
| PA1, PA2, PA3, PA4, PA5, PA6, PA7 | ADC1/ADC2 inputs | Direct connection to dual ADCs enables concurrent sampling of up to 17 analog channels with hardware synchronization. |
| PA4 | DAC output channel 1 | Single-pin 12-bit voltage output usable for analog setpoint generation or calibration reference without external DAC IC. |
| PA11, PA12 | USB D+/D− | Integrated full-speed USB 2.0 PHY eliminates need for external transceiver in firmware update or debug interfaces. |
| PD0, PD1 | CAN RX/TX | Dedicated CAN bus interface compliant with ISO 11898-1, supporting robust communication in noisy motor drive environments. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware CRC calculation unit | Accelerates firmware image integrity checks and communication frame validation without CPU load. |
| Programmable voltage detector (PVD) | Monitors VDD in real time and triggers interrupt or reset if supply drops below user-defined threshold - critical for brown-out resilience. |
| Capacitive touch sensing controller (TSC) | Supports up to 24 channels for touchkey, linear, or rotary sensors - enables intuitive HMI on industrial panels without external touch controller. |
| Advanced-control timer (TIM1) | 16-bit, 6-channel PWM with deadtime insertion and emergency stop - directly drives 3-phase inverter gate drivers with hardware fault protection. |
| Interconnect matrix | Enables concurrent peripheral-to-peripheral DMA transfers - e.g., ADC → memory → DAC → timer without CPU intervention. |
Applications
| Motor Control System | Industrial HMI Panel |
|---|---|
Use Scenario: Three-phase BLDC motor drive with current/voltage sensing, thermal monitoring, and CAN-based command interface. IC Role / Device Role / Timing Role: Real-time control unit executing FOC algorithm, synchronizing PWM outputs, sampling analog sensors at 100+ kHz, and managing CAN message scheduling. Use Value: Integrated OPAMPs and dual ADCs eliminate external signal-conditioning components; advanced timers provide hardware-deadtime PWM critical for IGBT/MOSFET safety. | Use Scenario: Touch-enabled operator interface for PLC-controlled machinery with local display, alarm logging, and USB firmware updates. IC Role / Device Role / Timing Role: Main application processor handling capacitive touch decoding, UART/USB communication, RTC-based event timestamping, and graphical UI rendering. Use Value: On-chip TSC supports 24-channel touch sensing; USB full-speed interface enables plug-and-play firmware upgrades without JTAG programmer. |
| Energy Monitoring Node | Smart Sensor Gateway |
Use Scenario: DIN-rail mounted electricity metering module measuring voltage, current, and power factor across multiple phases. IC Role / Device Role / Timing Role: Precision analog acquisition engine with dual synchronized ADCs, 12-bit DAC for reference calibration, and RTC for time-stamped energy accumulation. Use Value: Hardware parity on 16 KB SRAM ensures data integrity during long-term logging; CAN interface enables daisy-chain topology in substation networks. | Use Scenario: Edge gateway aggregating Modbus RTU, I²C sensor data, and BLE/Wi-Fi telemetry for predictive maintenance in factory equipment. IC Role / Device Role / Timing Role: Protocol translation hub running multiple serial stacks (USART, I²C, SPI), managing buffer queues, and triggering USB or CAN alerts on anomaly detection. Use Value: Five USARTs support simultaneous RS-485 Modbus, TTL debug, and IrDA diagnostics; 2.0–3.6 V operation simplifies power design with wide-input DC-DC converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F303RCT6 | Includes additional features: 16 KB CCM RAM, enhanced comparator hysteresis, and higher-resolution DAC (12-bit with 2.5 V reference) | Better suited for applications requiring tighter analog control loop precision and larger zero-wait-state RAM for interrupt handlers | Select when needing improved DAC linearity or extra tightly coupled RAM for real-time ISR latency reduction |
| STM32G431KBT6 | Newer G4-series part with same LQFP64 package; adds hardware math accelerator (CORDIC/ART), higher ADC sampling rate (3.6 MSPS), and more advanced timers | Targeted at next-gen motor control with vector math acceleration and faster current-loop closure | Choose for new designs prioritizing computational throughput and future-proof peripheral roadmap over legacy toolchain compatibility |
Compared with STM32F302RCT6, STM32F303RCT6 offers enhanced analog precision and memory flexibility for margin-critical control loops, while STM32G431KBT6 delivers significantly higher compute density and ADC speed - making it suitable for advanced field-oriented control where cycle count and sampling bandwidth are limiting factors.
Availability
STM32F302RCT6 is available at Aetrix Electronics and suitable for motor control systems, industrial HMIs, energy monitoring nodes, and smart sensor gateways requiring stable component supply across extended product lifecycles.
Supply support for STM32F302RCT6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and automotive-grade components since 1987.
The STM32F3 series targets cost-sensitive, analog-intensive embedded applications - combining high-precision mixed-signal peripherals with Cortex-M4 performance for industrial automation, motor control, and human-machine interfaces.
FAQ
What is the maximum operating frequency and supported clock sources for STM32F302RCT6?
The STM32F302RCT6 operates at up to 72 MHz using its internal 8 MHz RC oscillator with PLL multiplication, or from external 4–32 MHz crystal or ceramic resonator. It also supports 32 kHz LSE for RTC and 40 kHz LSI for watchdogs - all validated per DS9911 Rev 9 Section 6.3.8 and 6.3.9.
Does STM32F302RCT6 support hardware encryption or secure boot features?
No. The STM32F302RCT6 does not include hardware cryptographic accelerators, TRNG, or secure boot ROM. It lacks the AES, PKA, or secure firmware install (SFI) capabilities found in STM32L4/L5 or STM32H7 series - security relies on software-implemented protocols and external secure elements.
What debug interfaces are available on STM32F302RCT6?
The device supports Serial Wire Debug (SWD) and JTAG via dedicated SWCLK, SWDIO, and JTCK/JTDI/JTMS/JTRST pins. It includes Cortex-M4 ETM trace capability and supports standard OpenOCD, ST-LINK, and SEGGER J-Link tools - confirmed in Section 3.27 of DS9911 Rev 9.
How many I/O pins are 5 V-tolerant on STM32F302RCT6?
51 I/O pins are 5 V-tolerant, including all GPIOs except those assigned to ADC inputs, OPAMP terminals, DAC output, and USB D+/D−. This is explicitly documented in Section 3.10 and Table 13 of DS9911 Rev 9, enabling direct interfacing with legacy 5 V logic without level shifters.
STM32F302RCT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32F3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 72MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, SPI, UART/USART, USB
- Peripherals:
- DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 52
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 40K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F302RCT6 FAQ
1.How can I place an order for STM32F302RCT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F302RCT6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32F302RCT6 reliable?
The price and inventory of STM32F302RCT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F302RCT6 is usually 5 days.
3.What payment methods are accepted for STM32F302RCT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F302RCT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F302RCT6?
STM32F302RCT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F302RCT6 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32F302RCT6?
For technical support, including STM32F302RCT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F302RCT6 requirements.
6.How does Aetrix verify that STM32F302RCT6 is sourced from the original manufacturer or authorized distributors?
All STM32F302RCT6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32F302RCT6 meets industry standards.
7.What is the process for return or replacement of STM32F302RCT6?
All STM32F302RCT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F302RCT6, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32F302RCT6 part is unused and in its original packaging.
Return procedure for STM32F302RCT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32F302RCT6 Tags
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