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STMicroelectronics STM32F302C8T7
- Part No.:
- STM32F302C8T7
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM32F302C8T7.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,364
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Product details
Overview
STM32F302C8T7 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 64 KB Flash, 16 KB SRAM, integrated USB 2.0 full-speed interface, CAN 2.0B controller, and analog peripherals including 12-bit DAC, three rail-to-rail comparators, and one operational amplifier configurable as a programmable gain amplifier (PGA). It operates from 2.0–3.6 V and targets motor control, industrial sensing, and human-machine interface applications requiring mixed-signal integration.
For engineers reviewing the STM32F302C8T7 datasheet, STM32F302C8T7 pinout, STM32F302C8T7 application, or STM32F302C8T7 equivalent, key selection considerations include its LQFP48 package, 72 MHz max CPU frequency, 15-channel 12-bit ADC with 0.20 µs conversion time, dual clock-domain USART with auto baudrate detection, and support for capacitive touch sensing on up to 18 channels.
Technical Context
The STM32F302C8T7 implements an Arm Cortex-M4 core with hardware floating-point unit and DSP extensions, enabling real-time signal processing in motor control and sensor fusion. Its interconnect matrix enables concurrent peripheral access without bus contention, and the advanced-control timer (TIM1) supports 6-channel PWM with deadtime insertion and emergency stop-critical for three-phase inverter gate driving.
Analog subsystem integration includes a dedicated 2.4–3.6 V analog supply domain supporting simultaneous operation of the 12-bit DAC, temperature sensor, and op-amp in PGA mode. The device features two independent clock domains for communication interfaces: one for USB/USB PHY and another for USART, allowing asynchronous protocol handling without timing conflict.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 72 MHz max - enables real-time DSP operations (e.g., PID loop execution in <1 µs) and IEEE-754 compliant floating-point math. |
| Memory | 64 KB Flash / 16 KB SRAM - sufficient for bootloader + application code with real-time data buffers; Flash supports 10K write/erase cycles. |
| ADC | 1 × 12-bit, 15-channel, 0.20 µs conversion - supports high-speed current sensing in motor drives with selectable resolution (6–12 bits) and differential input mode. |
| DAC | 1 × 12-bit, rail-to-rail output - provides precise analog reference generation or waveform synthesis (e.g., sine lookup table at 1 MSps). |
| Timers | 9 timers including TIM1 (advanced-control), TIM2/TIM15–17 (general-purpose), TIM6 (DAC trigger) - enables synchronized PWM generation, quadrature encoder decoding, and periodic DAC updates. |
| Communication | USB 2.0 FS, CAN 2.0B, 3× I²C, 3× USART, 2× SPI/I²S - supports fieldbus connectivity (CAN), PC interface (USB), and sensor/actuator bridging (I²C/USART). |
| Analog Peripherals | 3× comparators, 1× op-amp (PGA mode), temperature sensor - allows overcurrent protection, closed-loop analog signal conditioning, and thermal monitoring without external components. |
Pinout & Package
LQFP48 (7 × 7 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, VSS | Power supply / Ground | Dual power domain: VDD (digital core/I/O), VDDA (analog peripherals); requires separate decoupling near pins. |
| PA0–PA15, PB0–PB15, PC13–PC15 | General-purpose I/O | 51 total fast I/Os; all mappable to external interrupt vectors; up to 18 support capacitive sensing; several are 5 V-tolerant. |
| PA11/PA12 | USB D+/D− | Dedicated full-speed USB 2.0 transceiver pins; require 1.5 kΩ pull-up on D+ for enumeration; no external PHY needed. |
| PB8/PB9 | CAN RX/TX | CAN 2.0B physical layer interface; compatible with ISO 11898-1; requires external transceiver for bus connection. |
| PA4–PA7, PB0–PB1 | ADC1 IN0–IN15 | 15-channel single-ended/differential analog inputs; share VREF+ and VREF– pins; support 0–3.6 V input range with separate VDDA supply. |
| PA4 | DAC OUT1 | Direct output of DAC channel 1; rail-to-rail swing (2.4–3.6 V analog supply); supports buffered/unbuffered modes. |
| PA0 | COMP1_INP | Inverting input of comparator 1; supports internal voltage reference or external signal; used for overvoltage/overcurrent trip detection. |
| PA1 | OPAMP1_VINP | Non-inverting input of op-amp 1; accessible for PGA configuration with programmable gain (1–40×); requires external feedback resistor network. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Gain Amplifier (PGA) | Op-amp 1 supports PGA mode with gains of 1, 2, 4, 8, 16, or 40× via internal switches - eliminates need for external gain-setting resistors in sensor front-ends. |
| Capacitive Touch Sensing | 18-channel TSC with hardware-accelerated acquisition - enables robust touchkey, linear slider, or rotary wheel UIs with <10 µA average current in active scan mode. |
| Dual-Clock-Domain USART | One USART supports independent clock sources for transmitter/receiver - allows simultaneous RS-485 half-duplex and ISO 7816 smartcard communication without CPU intervention. |
| Advanced-Control Timer (TIM1) | 6-channel complementary PWM with programmable deadtime (1–128 ns steps) and emergency brake input - meets IEC 60730 Class B functional safety requirements for motor drives. |
| Temperature Sensor & VREFINT | On-die temperature sensor (±1.5°C accuracy) and internal 1.2 V reference (±1% tolerance) - enables self-calibration of ADC/DAC and thermal derating without external components. |
Applications
| Motor Control System | Industrial Sensor Node |
|---|---|
Use Scenario: Three-phase BLDC motor drive with current sensing, position feedback, and thermal monitoring. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, generating 6-channel PWM with deadtime, sampling dual-shunt currents via ADC, and managing CAN-based command interface. Use Value: Integrated op-amp (PGA) conditions shunt voltage directly; comparators provide hardware overcurrent shutdown; TIM1 ensures precise PWM synchronization and emergency stop response <1 µs. |
Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and gas concentration with wireless backhaul. IC Role / Device Role / Timing Role: System-on-chip managing analog sensor signal chain, low-power scheduling, USB/CAN firmware updates, and capacitive touch wake-up. Use Value: 16 KB SRAM retains sensor history during Stop mode; VBAT supply maintains RTC and backup registers; ultra-low leakage in Standby mode extends battery life to >5 years. |
| HMI Touch Panel | Power Supply Monitor |
Use Scenario: Embedded display interface with touch slider, LED dimming, and button feedback. IC Role / Device Role / Timing Role: Capacitive touch controller, DAC-driven LED current source, and comparator-based button press detection with hysteresis. Use Value: 18-channel TSC supports multi-touch sliders without external IC; DAC provides smooth 12-bit LED brightness control; comparators enable zero-latency mechanical switch emulation. |
Use Scenario: AC/DC PSU supervisory unit monitoring input voltage, output rail stability, and thermal margin. IC Role / Device Role / Timing Role: Analog monitor hub acquiring AC rectified voltage, isolated DC outputs, and heatsink temperature via ADC, then triggering alerts via CAN/USB. Use Value: Programmable voltage detector (PVD) triggers interrupt on VDD drop below threshold; temperature sensor validates thermal shutdown margin; 12-bit ADC resolves 10 mV changes on 24 V rail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F303C8T6 | Same package and pinout; adds 1× additional 12-bit DAC channel and enhanced DMA request mapping. | Required when dual DAC outputs are needed for stereo audio or dual actuator control. | Select if dual DAC or higher-resolution DAC trigger timing is essential; otherwise, STM32F302C8T7 offers lower cost and identical analog feature set for single-output use cases. |
| STM32G431CBT6 | Higher CPU frequency (170 MHz), enhanced analog (2× 12-bit DAC, 2× PGA, 2.5 MSPS ADC), but different pinout and no CAN interface. | Suitable for high-speed control loops (e.g., digital PFC) where CAN is not required and USB/CAN coexistence is unnecessary. | Choose for performance-critical applications needing >72 MHz throughput or advanced analog features; avoid if CAN bus integration or LQFP48 footprint compatibility is mandatory. |
Compared with STM32F303C8T6, the STM32F302C8T7 reduces BOM cost by omitting redundant DAC hardware while retaining identical motor control timing and analog precision; versus STM32G431CBT6, it trades raw speed for CAN-enabled fieldbus interoperability and proven industrial qualification at lower system complexity.
Availability
STM32F302C8T7 is available at Aetrix Electronics and suitable for motor control systems, industrial sensor nodes, HMI touch panels, and power supply monitors requiring stable component supply across extended production lifecycles.
Supply support for STM32F302C8T7 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, specializing in microcontrollers, power management, sensors, and automotive ICs with vertical manufacturing capability and AEC-Q100 qualified processes.
The STM32F3 series targets cost-sensitive, analog-intensive embedded applications-designed to integrate precision signal conditioning, real-time control, and fieldbus connectivity into a single chip for industrial automation and appliance control.
FAQ
What is the maximum operating frequency and supported voltage range for the STM32F302C8T7?
The STM32F302C8T7 operates at up to 72 MHz using its internal PLL and supports a VDD supply range of 2.0 V to 3.6 V. Its VDDA analog supply must be within 2.4 V to 3.6 V for DAC, op-amp, and comparator operation, and 2.0 V to 3.6 V for ADC and temperature sensor functionality. All specifications are guaranteed across the industrial temperature range (–40°C to +85°C).
Does the STM32F302C8T7 support hardware-based capacitive touch sensing?
Yes, it integrates a dedicated Touch Sensing Controller (TSC) supporting up to 18 capacitive sensing channels with built-in acquisition logic, spread-spectrum modulation, and noise immunity features. It enables touchkey, linear slider, and rotary wheel implementations without external components, with typical current consumption of less than 10 µA during active scanning in low-power mode.
Can the op-amp in the STM32F302C8T7 be configured as a programmable gain amplifier?
Yes, Op-amp 1 supports PGA mode with selectable gains of 1, 2, 4, 8, 16, or 40× via internal switch matrices controlled by dedicated registers. The non-inverting input (PA1), inverting input (PA0), and output (PA7) are all externally accessible, allowing direct connection to sensors and feedback networks while maintaining rail-to-rail output swing under 2.4–3.6 V analog supply.
What debug interfaces are supported, and is SWD sufficient for full development?
The STM32F302C8T7 supports Serial Wire Debug (SWD) and JTAG via the SWJ-DP interface. SWD is fully sufficient for all development tasks-including flash programming, real-time variable inspection, breakpoint setting, and low-power mode debugging-as it provides the same core visibility and control as JTAG with only two pins (SWCLK and SWDIO). No external debugger license or special hardware is required beyond a standard ST-LINK/V2 or compatible probe.
STM32F302C8T7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-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:
- 37
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 11x12b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F302C8T7 FAQ
1.How can I place an order for STM32F302C8T7 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F302C8T7 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 STM32F302C8T7 reliable?
The price and inventory of STM32F302C8T7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F302C8T7 is usually 5 days.
3.What payment methods are accepted for STM32F302C8T7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F302C8T7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F302C8T7?
STM32F302C8T7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F302C8T7 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 STM32F302C8T7?
For technical support, including STM32F302C8T7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F302C8T7 requirements.
6.How does Aetrix verify that STM32F302C8T7 is sourced from the original manufacturer or authorized distributors?
All STM32F302C8T7 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 STM32F302C8T7 meets industry standards.
7.What is the process for return or replacement of STM32F302C8T7?
All STM32F302C8T7 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F302C8T7, 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 STM32F302C8T7 part is unused and in its original packaging.
Return procedure for STM32F302C8T7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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