STM32F334R8T6 - 64KB Flash ARM Cortex-M4 MCU | STMicroelectronics
MPN: STM32F334R8T6 ✓ Hoạt độngSTM32F334R8T6 Tóm tắt
A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory, and programmable input/output peripherals. The STM32F334R8T6 belongs to the STM32F3 family, which is optimized for mixed-signal processing and control applications. Within the hierarchy, it is a microcontroller -> ARM Cortex-M4 -> STM32F3 series -> STM32F334 line, positioning it as a high-performance yet cost-effective solution for real-time control.
Key features include a 72 MHz ARM Cortex-M4 core with FPU, 64 KB flash, 12 KB SRAM, and a rich set of peripherals: three 12-bit ADCs (up to 5 MSPS), two 12-bit DACs, seven comparators, and advanced timers including a high-resolution timer (HRTIM) with 217 ps resolution. The device also supports a CAN controller, USART, SPI, I2C, and USB. These features make it ideal for digital power conversion, motor control, and industrial automation.
Technically, the STM32F334R8T6 leverages the ARM Cortex-M4 architecture with DSP instructions and a single-precision FPU, enabling efficient execution of complex control algorithms. The HRTIM is a standout feature, providing high-resolution PWM generation essential for switch-mode power supplies and motor drives. The device operates from 2.0V to 3.6V and supports a temperature range of -40°C to +85°C, ensuring robust performance in harsh environments.
Typical applications include digital power supplies, three-phase motor control, solar inverters, and industrial automation. The combination of high-resolution timers, fast ADCs, and comparators allows for precise, real-time control loops. For instance, in a digital power supply, the HRTIM generates PWM signals with nanosecond-level accuracy, while the fast ADC samples the output voltage for closed-loop regulation.
When designing with this MCU, ensure proper decoupling of the power supply pins and a clean ground plane to minimize noise, especially when using the high-resolution timer and ADC simultaneously. The device supports SWD and JTAG debugging, facilitating development. Consider using the STM32CubeF3 software package for rapid prototyping and code generation.
Bộ thay thế dễ dàng lắp đặt cho STM32F334R8T6 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
STM32F334R8T7
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STM32F334R6T6
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STM32F334R8T6TR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STM32F303RCT6
⚡ Đồng gói ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →STM32F334R8T6 Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M4 with FPU |
| Maximum Clock Speed | 72 MHz |
| Flash Memory | 64 KB |
| SRAM | 12 KB |
| Hộp | LQFP64 (10x10 mm) |
| Điện áp cung cấp | 2.0V to 3.6V |
| Nhiệt độ hoạt động | -40°C to +85°C |
| Number of I/O Pins | 51 |
| ADC | 3x 12-bit, up to 5 MSPS |
| DAC | 2x 12-bit |
| Comparators | 7 |
| High-Resolution Timer | 217 ps resolution |
| Communication Interfaces | CAN, USART, SPI, I2C, USB |
| DMA | Yes, 5 channels |
| Trạng thái RoHS | Compliant |
Cấu hình chân STM32F334R8T6
| Chân 1 | VBAT — Battery backup supply |
| Chân 2 | PC13 — GPIO / RTC output |
| Chân 3 | PC14 — GPIO / OSC32_IN |
| Chân 4 | PC15 — GPIO / OSC32_OUT |
| Chân 5 | PF0 — GPIO / OSC_IN |
| Chân 6 | PF1 — GPIO / OSC_OUT |
| Chân 7 | NRST — Reset (active low) |
| Chân 8 | VSSA — Analog ground |
| Chân 9 | VDDA — Analog power supply |
| Chân 10 | PA0 — GPIO / ADC_IN0 |
| Chân 11 | PA1 — GPIO / ADC_IN1 |
| Chân 12 | PA2 — GPIO / USART2_TX |
| Chân 13 | PA3 — GPIO / USART2_RX |
| Chân 14 | PA4 — GPIO / DAC_OUT1 |
| Chân 15 | PA5 — GPIO / DAC_OUT2 |
| Chân 16 | PA6 — GPIO / TIM3_CH1 |
| Chân 17 | PA7 — GPIO / TIM3_CH2 |
| Chân 18 | PA8 — GPIO / TIM1_CH1 |
| Chân 19 | PA9 — GPIO / USART1_TX |
| Chân 20 | PA10 — GPIO / USART1_RX |
| Chân 21 | PA11 — GPIO / USB_DM |
| Chân 22 | PA12 — GPIO / USB_DP |
| Chân 23 | PA13 — GPIO / SWDIO |
| Chân 24 | PA14 — GPIO / SWCLK |
| Chân 25 | PA15 — GPIO / JTDI |
| Chân 26 | PB0 — GPIO / ADC_IN8 |
| Chân 27 | PB1 — GPIO / ADC_IN9 |
| Chân 28 | PB2 — GPIO / BOOT1 |
| Chân 29 | PB3 — GPIO / JTDO |
| Chân 30 | PB4 — GPIO / NJTRST |
| Chân 31 | PB5 — GPIO / I2C1_SMBA |
| Chân 32 | PB6 — GPIO / I2C1_SCL |
| Chân 33 | PB7 — GPIO / I2C1_SDA |
| Chân 34 | PB8 — GPIO / CAN_RX |
| Chân 35 | PB9 — GPIO / CAN_TX |
| Chân 36 | PB10 — GPIO / I2C2_SCL |
| Chân 37 | PB11 — GPIO / I2C2_SDA |
| Chân 38 | PB12 — GPIO / SPI2_NSS |
| Chân 39 | PB13 — GPIO / SPI2_SCK |
| Chân 40 | PB14 — GPIO / SPI2_MISO |
| Chân 41 | PB15 — GPIO / SPI2_MOSI |
| Chân 42 | PC0 — GPIO / ADC_IN10 |
| Chân 43 | PC1 — GPIO / ADC_IN11 |
| Chân 44 | PC2 — GPIO / ADC_IN12 |
| Chân 45 | PC3 — GPIO / ADC_IN13 |
| Chân 46 | PC4 — GPIO / ADC_IN14 |
| Chân 47 | PC5 — GPIO / ADC_IN15 |
| Chân 48 | PC6 — GPIO / TIM3_CH1 |
| Chân 49 | PC7 — GPIO / TIM3_CH2 |
| Chân 50 | PC8 — GPIO / TIM3_CH3 |
| Chân 51 | PC9 — GPIO / TIM3_CH4 |
| Chân 52 | PC10 — GPIO / USART4_TX |
| Chân 53 | PC11 — GPIO / USART4_RX |
| Chân 54 | PC12 — GPIO / USART5_TX |
| Chân 55 | PD0 — GPIO / OSC_IN |
| Chân 56 | PD1 — GPIO / OSC_OUT |
| Chân 57 | PD2 — GPIO / TIM1_ETR |
| Chân 58 | VSS — Ground |
| Chân 59 | VDD — Power supply |
| Chân 60 | PD3 — GPIO / USART2_CTS |
| Chân 61 | PD4 — GPIO / USART2_RTS |
| Chân 62 | PD5 — GPIO / USART2_CK |
| Chân 63 | PD6 — GPIO / SPI3_MISO |
| Chân 64 | PD7 — GPIO / SPI3_MOSI |
Ứng dụng tiêu biểu
STM32F334R8T6 phù hợp cho 6 Áp dụngs: Digital Power Supply, Three-Phase Motor Control, Solar Inverter, Industrial Automation, Consumer Electronics, Medical Devices.
Digital Power Supply
The STM32F334R8T6 is ideal for digital power supplies due to its high-resolution timer (217 ps) and fast ADCs. In a typical application, the HRTIM generates PWM signals for the power stage, while the ADC samples the output voltage and current for closed-loop control. The device's 72 MHz Cortex-M4 core executes control algorithms efficiently, enabling high-frequency switching with precise regulation. Compared to analog controllers, this MCU offers flexibility and programmability, allowing for adaptive control strategies and communication with a host system. The integrated comparators provide fast overcurrent protection, enhancing system reliability.
Được đề xuất
Three-Phase Motor Control
The STM32F334R8T6 excels in three-phase motor control, particularly field-oriented control (FOC). The high-resolution timer generates precise PWM signals for the inverter, while the three ADCs simultaneously sample phase currents. The Cortex-M4 FPU accelerates the Clarke and Park transforms, reducing computational load. The device's seven comparators can be used for overcurrent detection and sensorless control. With a 72 MHz clock, the MCU can execute a complete FOC loop in under 10 microseconds, enabling smooth and efficient motor operation. This makes it suitable for applications ranging from industrial drives to electric vehicles.
Được đề xuất
Solar Inverter
In solar inverters, the STM32F334R8T6 manages maximum power point tracking (MPPT) and DC-AC conversion. The HRTIM generates high-frequency PWM for the boost converter and inverter stages, while the ADCs monitor solar panel voltage and current. The device's fast processing enables real-time MPPT algorithms, maximizing energy harvest. The integrated comparators provide protection against overvoltage and overcurrent. With its wide operating temperature range and robust peripherals, the STM32F334R8T6 is well-suited for outdoor solar installations, ensuring reliable operation in varying environmental conditions.
Được đề xuất
Industrial Automation
The STM32F334R8T6 is used in industrial automation for PLCs, robotics, and process control. Its rich set of communication interfaces (CAN, USART, SPI, I2C) allows seamless integration with industrial networks. The device's high-resolution timer and fast ADCs enable precise control of actuators and sensors. The 51 I/O pins provide ample connectivity for various sensors and actuators. The Cortex-M4 core with FPU handles complex control algorithms, while the low power consumption makes it suitable for energy-efficient designs. The device's robustness and long-term availability make it a reliable choice for industrial applications.
Được đề xuất
Consumer Electronics
In consumer electronics, the STM32F334R8T6 is used in appliances, power tools, and smart home devices. Its compact LQFP64 package and low power consumption make it suitable for space-constrained designs. The device's USB interface enables easy connectivity for charging and data transfer. The high-resolution timer is useful for controlling brushless DC motors in appliances like fans and washing machines. The integrated DACs can generate audio signals for alerts or user feedback. With its cost-effectiveness and rich feature set, the STM32F334R8T6 is a popular choice for consumer products requiring advanced control.
Được đề xuất
Medical Devices
The STM32F334R8T6 is used in medical devices such as infusion pumps, ventilators, and diagnostic equipment. Its high reliability and precise control capabilities are essential for patient safety. The device's fast ADCs and comparators enable accurate monitoring of vital signs. The Cortex-M4 core with FPU processes complex algorithms for signal filtering and analysis. The wide operating temperature range ensures reliable operation in clinical environments. The device's long-term availability and support make it a trusted choice for medical device manufacturers.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM32F334R8T6 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | STM32F334R8T7 | STM32F334R6T6 | STM32F334R8T6TR | STM32F334C8T6 | STM32F303RCT6 |
|---|---|---|---|---|---|---|
| Package | LQFP64 | LQFP64 | LQFP64 | LQFP64 | LQFP48 | LQFP64 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU |
| Maximum Clock Speed | 72 MHz | 72 MHz | 72 MHz | 72 MHz | 72 MHz | 72 MHz |
| Flash Memory | 64 KB | 64 KB | 32 KB | 64 KB | 64 KB | 256 KB |
| SRAM | 12 KB | 12 KB | 12 KB | 12 KB | 12 KB | 40 KB |
| High-Resolution Timer | Yes (217 ps) | Yes (217 ps) | Yes (217 ps) | Yes (217 ps) | Yes (217 ps) | No |
| Operating Temperature | -40°C to +85°C | -40°C to +105°C | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C |
Bảo phân biệt quan trọng
- High-resolution timer with 217 ps resolution (vsSTM32F303RCT6)
- Integrated comparators (7) (vsSTM32F334R6T6)
- Wide operating temperature range option (vsSTM32F334R8T6)
Ghi chú thiết kế
Decouple the VDD and VDDA pins with 100 nF ceramic capacitors placed as close to the pins as possible. Additionally, use a 4.7 uF tantalum or ceramic capacitor for bulk decoupling. For VDDA, a ferrite bead in series with the supply can reduce high-frequency noise, which is critical when using the ADC and DAC simultaneously.
Ensure a solid ground plane under the MCU to minimize noise and provide a low-impedance return path. For the high-resolution timer and ADC, keep analog and digital grounds separate and connect them at a single point. Place the crystal oscillator (if used) close to the OSC_IN/OSC_OUT pins with proper load capacitors.
Do not exceed the absolute maximum ratings for VDD (3.6V) and VDDA (3.6V). Ensure the BOOT0 pin is correctly configured to select the desired boot mode. When using the HRTIM, verify that the clock source is stable and free of jitter, as this directly affects PWM resolution. Also, avoid floating unused I/O pins by configuring them as outputs or enabling internal pull-ups/pull-downs.
Thông tin tuân thủ
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified; for automotive, consider STM32F334R8T7 or other automotive-grade variants.
