STM32F103VET6 - 512KB Flash ARM Cortex-M3 MCU | STMicroelectronics
MPN: STM32F103VET6 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.8 | $78.00 |
| 100 | $6.9 | $690.00 |
| 500 | $6.2 | $3,100.00 |
| 1,000 | $5.6 | $5,600.00 |
Drop-in alternatives for STM32F103VET6 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
STM32F103VET6TR
β Drop-Inπ Reference alternative (not in catalog)
STM32F103VET7
β Drop-Inπ Reference alternative (not in catalog)
STM32F103VET6-Q
β Drop-Inπ Reference alternative (not in catalog)
STM32F103VET6 Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M3 |
| Max Clock Frequency | 72 MHz |
| Flash Memory | 512 KB |
| SRAM | 64 KB |
| Supply Voltage | 2.0 V to 3.6 V |
| Package | LQFP-100 (14x14 mm) |
| GPIO Pins | 80 |
| ADC | 3x 12-bit, 16 channels |
| DAC | 2x 12-bit |
| Timers | 4x 16-bit, 2x 32-bit |
| Communication Interfaces | USART (5), SPI (3), I2C (2), USB 2.0 FS, CAN (2), SDIO |
| DMA | 12 channels |
| Operating Temperature | -40Β°C to +85Β°C |
| RoHS Status | Compliant |
| Mounting Type | Surface Mount |
STM32F103VET6 Pin Configuration
| Pin 1 | VBAT β Battery backup supply for RTC |
| Pin 2 | PC13 β GPIO / RTC output |
| Pin 3 | PC14 β GPIO / OSC32_IN |
| Pin 4 | PC15 β GPIO / OSC32_OUT |
| Pin 5 | PD0 β GPIO / OSC_IN |
| Pin 6 | PD1 β GPIO / OSC_OUT |
| Pin 7 | NRST β Reset (active low) |
| Pin 8 | VSSA β Analog ground |
| Pin 9 | VDDA β Analog power supply |
| Pin 10 | PA0 β GPIO / ADC_IN0 / WKUP |
| Pin 11 | PA1 β GPIO / ADC_IN1 |
| Pin 12 | PA2 β GPIO / ADC_IN2 / USART2_TX |
| Pin 13 | PA3 β GPIO / ADC_IN3 / USART2_RX |
| Pin 14 | PA4 β GPIO / SPI1_NSS / DAC_OUT1 |
| Pin 15 | PA5 β GPIO / SPI1_SCK / DAC_OUT2 |
| Pin 16 | PA6 β GPIO / SPI1_MISO / TIM3_CH1 |
| Pin 17 | PA7 β GPIO / SPI1_MOSI / TIM3_CH2 |
| Pin 18 | PB0 β GPIO / ADC_IN8 / TIM3_CH3 |
| Pin 19 | PB1 β GPIO / ADC_IN9 / TIM3_CH4 |
| Pin 20 | PB2 β GPIO / BOOT1 |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
STM32F103VET6 is suitable for 6 applications: Industrial Control Systems, Motor Drives, Medical Devices, Consumer Electronics, IoT Gateways, Automotive Electronics.
Industrial Control Systems
The STM32F103VET6 is ideal for industrial control systems due to its robust peripheral set, including multiple timers, ADCs, and communication interfaces like CAN and USART. Its 72 MHz Cortex-M3 core provides sufficient processing power for real-time control loops, while the 512 KB Flash allows for complex firmware. In a typical PLC (Programmable Logic Controller), the MCU manages digital and analog I/O, executes ladder logic, and communicates with HMI panels via RS-485 or Ethernet. The device's wide operating temperature range (-40Β°C to +85Β°C) ensures reliability in harsh factory environments. Additionally, the DMA controller offloads data transfer tasks, reducing CPU load and improving response times. The STM32F103VET6's low-power modes enable energy-efficient operation in remote monitoring stations, where it can run on battery or solar power. Its CAN interface supports robust industrial networking, allowing multiple controllers to communicate over a shared bus. The 12-bit ADCs provide accurate sensor readings for process control, and the timers can generate precise PWM signals for motor speed control. Overall, the STM32F103VET6 offers a cost-effective solution for industrial automation, balancing performance, connectivity, and reliability.
Recommended
Motor Drives
The STM32F103VET6 excels in motor drive applications, particularly for brushless DC (BLDC) and permanent magnet synchronous motors (PMSM). Its advanced timer peripherals, including 4x 16-bit and 2x 32-bit timers, can generate complementary PWM signals with programmable dead-time insertion, essential for driving three-phase inverters. The device's 12-bit ADCs enable high-speed current sensing, with sampling rates up to 1 Msps, allowing for precise field-oriented control (FOC). The STM32F103VET6's 72 MHz core can execute FOC algorithms in real-time, with typical loop times under 50 Β΅s. The CAN interface facilitates communication with higher-level controllers in industrial motor drives, while the USART and SPI interfaces support encoder and resolver interfaces. The device's robust I/O structure handles high-voltage isolation requirements when used with gate drivers. In a typical motor drive, the MCU reads rotor position from Hall sensors or encoders, calculates the required PWM duty cycles, and adjusts them based on current feedback. The STM32F103VET6's DMA channels can transfer ADC results directly to memory, reducing CPU overhead. Its wide operating temperature range and industrial-grade reliability make it suitable for pumps, fans, and conveyor systems. The 512 KB Flash provides ample space for complex motor control algorithms, including sensorless FOC and safety features.
Recommended
Medical Devices
The STM32F103VET6 is well-suited for medical devices such as patient monitors, infusion pumps, and diagnostic equipment. Its high processing power and rich peripheral set enable real-time data acquisition and processing. The device's multiple ADCs can sample physiological signals like ECG, EEG, and blood pressure with high resolution (12-bit) and speed. The 512 KB Flash allows for storing patient data and complex algorithms, while the 64 KB SRAM supports real-time data buffering. The STM32F103VET6's communication interfaces, including USB and USART, facilitate data transfer to host computers or cloud platforms. In a patient monitor, the MCU acquires signals from sensors, processes them to extract vital signs, and displays them on an LCD. The device's low-power modes are crucial for battery-operated portable devices, extending operational life. The STM32F103VET6's reliability and long-term availability make it a preferred choice for medical equipment manufacturers. Its operating temperature range of -40Β°C to +85Β°C covers clinical environments. The device's DMA controller efficiently handles continuous data streams, reducing CPU load. Additionally, the STM32F103VET6 supports firmware updates via USB or UART, allowing for field upgrades. Its robust design and comprehensive documentation facilitate compliance with medical safety standards.
Recommended
Consumer Electronics
The STM32F103VET6 is widely used in consumer electronics such as smart home devices, wearables, and gaming peripherals. Its compact LQFP-100 package and low power consumption make it ideal for space-constrained designs. The device's USB interface enables direct connection to PCs or smartphones for charging and data transfer. In a smart thermostat, the STM32F103VET6 reads temperature sensors, controls heating/cooling relays, and communicates with a mobile app via Wi-Fi (using an external module). The 512 KB Flash provides ample storage for user interfaces and connectivity stacks. The device's multiple timers generate precise PWM signals for LED dimming or buzzer control. The STM32F103VET6's low-power modes, such as Stop and Standby, extend battery life in portable devices. Its rich peripheral set includes I2C and SPI for interfacing with sensors and displays. The device's 72 MHz core ensures responsive user interfaces and smooth animations. In a gaming keyboard, the MCU scans keys, debounces inputs, and communicates via USB HID. The STM32F103VET6's robust ESD protection and wide operating voltage range (2.0V-3.6V) enhance reliability in consumer environments. Its cost-effectiveness and availability make it a popular choice for mass-produced products.
Recommended
IoT Gateways
The STM32F103VET6 serves as an excellent MCU for IoT gateways, bridging sensor networks and cloud platforms. Its multiple communication interfaces, including USART, SPI, I2C, and Ethernet (via external PHY), allow it to aggregate data from various sensors and protocols. The device's 512 KB Flash can store firmware for protocol stacks like MQTT and CoAP, while the 64 KB SRAM buffers incoming data. In a typical IoT gateway, the STM32F103VET6 collects data from Zigbee or LoRa modules via SPI or UART, processes it, and forwards it to the cloud over Ethernet or Wi-Fi. The device's DMA controller efficiently handles high-throughput data streams, reducing CPU load. The STM32F103VET6's low-power modes enable battery-powered gateways in remote locations. Its robust security features, including a unique device ID and CRC calculation unit, support secure boot and data integrity. The device's wide operating temperature range makes it suitable for outdoor installations. The STM32F103VET6's rich timer resources can generate precise timing for scheduled data transmissions. Its cost-effectiveness and long-term availability make it a reliable choice for IoT deployments. The device's support for FreeRTOS enables multitasking, allowing simultaneous handling of multiple sensor protocols and network connections.
Recommended
Automotive Electronics
The STM32F103VET6 is used in automotive electronics for body control modules, dashboard clusters, and infotainment systems. Its CAN interface supports in-vehicle networking, allowing communication with other ECUs. The device's 72 MHz core and 512 KB Flash handle complex algorithms for vehicle diagnostics and control. In a body control module, the STM32F103VET6 manages lighting, windows, and door locks, reading inputs from switches and sensors, and driving outputs via relays or MOSFETs. The device's multiple timers generate PWM signals for dimming interior lights. The STM32F103VET6's ADCs monitor battery voltage and temperature. Its operating temperature range of -40Β°C to +85Β°C covers automotive environments. The device's robust design and AEC-Q100 qualified variants (e.g., STM32F103VET6-Q) ensure reliability in harsh conditions. The STM32F103VET6's low-power modes help reduce battery drain when the vehicle is off. Its USART and SPI interfaces connect to external peripherals like Bluetooth modules for keyless entry. The device's DMA controller efficiently handles data from multiple sensors. The STM32F103VET6's long-term availability and comprehensive documentation support automotive development cycles. Its cost-effectiveness makes it suitable for high-volume production.
Recommended
Recommended Products Summary
Engineering reference data for STM32F103VET6 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32F103VET6TR | STM32F103VET7 | STM32F103VET6-Q |
|---|---|---|---|---|
| Package | LQFP-100 | LQFP-100 - same | LQFP-100 - same | LQFP-100 - same |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB |
| Max Clock Frequency | 72 MHz | 72 MHz | 72 MHz | 72 MHz |
| Operating Temperature | -40Β°C to +85Β°C | -40Β°C to +85Β°C | -40Β°C to +105Β°C | -40Β°C to +85Β°C |
| Automotive Grade | No | No | No | Yes (AEC-Q100) |
| Packaging | Tray | Tape & Reel | Tray | Tray |
| Price (1pc) | $8.50 | $8.50 | $9.00 | $10.00 |
Key Differentiators
- Largest Flash in the STM32F103VE family (vs STM32F103VCT6)
- Extended temperature range option (vs STM32F103VET6TR)
- Automotive grade option (vs STM32F103VET6TR)
Design Notes
Decouple each VDD pin with a 100nF ceramic capacitor placed as close to the pin as possible, and add a 4.7uF bulk capacitor at the power entry point. The VDDA pin should be filtered with a ferrite bead and a 1uF capacitor to reduce analog noise. Ensure the supply voltage stays within 2.0V to 3.6V to avoid damaging the MCU.
Follow the layout guidelines in the STM32F103VE datasheet, particularly for the crystal oscillator circuit. Place the 8 MHz crystal and load capacitors close to the OSC_IN/OSC_OUT pins, with a ground plane underneath to minimize parasitic capacitance. Keep high-speed traces away from the crystal to avoid interference.
Ensure the BOOT0 pin is properly configured for the desired boot mode. For normal operation, BOOT0 should be tied low through a 10k resistor. Also, do not leave unused GPIO pins floating; configure them as outputs or enable internal pull-ups/pull-downs to reduce power consumption and prevent erratic behavior.
Compliance Information
RoHS compliant per STMicroelectronics product page. AEC-Q100 qualified variant available as STM32F103VET6-Q.
