STM32F334R8T6 - 64KB Flash ARM Cortex-M4 MCU | STMicroelectronics
N.º da peça: STM32F334R8T6 ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $6.5 | $6,50 |
| 10 | $5.85 | $58,50 |
| 100 | $5.2 | $520,00 |
| 500 | $4.68 | $2.340,00 |
| 1.000 | $4.16 | $4.160,00 |
STM32F334R8T6 Visão geral
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.
Alternativas drop-in para STM32F334R8T6 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
STM32F334R8T7
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
STM32F334R6T6
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
STM32F334R8T6TR
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
STM32F303RCT6
⚡ Mesmo encapsulamento ⚠️ Especificações não verificadas✓ Em estoque
$5.2 / unidade
Ver ficha técnica →STM32F334R8T6 Classificações máximas e características elétricas
| Core | ARM Cortex-M4 with FPU |
| Maximum Clock Speed | 72 MHz |
| Flash Memory | 64 KB |
| SRAM | 12 KB |
| Encapsulamento | LQFP64 (10x10 mm) |
| Tensão de alimentação | 2.0V to 3.6V |
| Temperatura de operação | -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 |
| Status RoHS | Compliant |
Configuração de pinos do STM32F334R8T6
| Pino 1 | VBAT — Battery backup supply |
| Pino 2 | PC13 — GPIO / RTC output |
| Pino 3 | PC14 — GPIO / OSC32_IN |
| Pino 4 | PC15 — GPIO / OSC32_OUT |
| Pino 5 | PF0 — GPIO / OSC_IN |
| Pino 6 | PF1 — GPIO / OSC_OUT |
| Pino 7 | NRST — Reset (active low) |
| Pino 8 | VSSA — Analog ground |
| Pino 9 | VDDA — Analog power supply |
| Pino 10 | PA0 — GPIO / ADC_IN0 |
| Pino 11 | PA1 — GPIO / ADC_IN1 |
| Pino 12 | PA2 — GPIO / USART2_TX |
| Pino 13 | PA3 — GPIO / USART2_RX |
| Pino 14 | PA4 — GPIO / DAC_OUT1 |
| Pino 15 | PA5 — GPIO / DAC_OUT2 |
| Pino 16 | PA6 — GPIO / TIM3_CH1 |
| Pino 17 | PA7 — GPIO / TIM3_CH2 |
| Pino 18 | PA8 — GPIO / TIM1_CH1 |
| Pino 19 | PA9 — GPIO / USART1_TX |
| Pino 20 | PA10 — GPIO / USART1_RX |
| Pino 21 | PA11 — GPIO / USB_DM |
| Pino 22 | PA12 — GPIO / USB_DP |
| Pino 23 | PA13 — GPIO / SWDIO |
| Pino 24 | PA14 — GPIO / SWCLK |
| Pino 25 | PA15 — GPIO / JTDI |
| Pino 26 | PB0 — GPIO / ADC_IN8 |
| Pino 27 | PB1 — GPIO / ADC_IN9 |
| Pino 28 | PB2 — GPIO / BOOT1 |
| Pino 29 | PB3 — GPIO / JTDO |
| Pino 30 | PB4 — GPIO / NJTRST |
| Pino 31 | PB5 — GPIO / I2C1_SMBA |
| Pino 32 | PB6 — GPIO / I2C1_SCL |
| Pino 33 | PB7 — GPIO / I2C1_SDA |
| Pino 34 | PB8 — GPIO / CAN_RX |
| Pino 35 | PB9 — GPIO / CAN_TX |
| Pino 36 | PB10 — GPIO / I2C2_SCL |
| Pino 37 | PB11 — GPIO / I2C2_SDA |
| Pino 38 | PB12 — GPIO / SPI2_NSS |
| Pino 39 | PB13 — GPIO / SPI2_SCK |
| Pino 40 | PB14 — GPIO / SPI2_MISO |
| Pino 41 | PB15 — GPIO / SPI2_MOSI |
| Pino 42 | PC0 — GPIO / ADC_IN10 |
| Pino 43 | PC1 — GPIO / ADC_IN11 |
| Pino 44 | PC2 — GPIO / ADC_IN12 |
| Pino 45 | PC3 — GPIO / ADC_IN13 |
| Pino 46 | PC4 — GPIO / ADC_IN14 |
| Pino 47 | PC5 — GPIO / ADC_IN15 |
| Pino 48 | PC6 — GPIO / TIM3_CH1 |
| Pino 49 | PC7 — GPIO / TIM3_CH2 |
| Pino 50 | PC8 — GPIO / TIM3_CH3 |
| Pino 51 | PC9 — GPIO / TIM3_CH4 |
| Pino 52 | PC10 — GPIO / USART4_TX |
| Pino 53 | PC11 — GPIO / USART4_RX |
| Pino 54 | PC12 — GPIO / USART5_TX |
| Pino 55 | PD0 — GPIO / OSC_IN |
| Pino 56 | PD1 — GPIO / OSC_OUT |
| Pino 57 | PD2 — GPIO / TIM1_ETR |
| Pino 58 | VSS — Ground |
| Pino 59 | VDD — Power supply |
| Pino 60 | PD3 — GPIO / USART2_CTS |
| Pino 61 | PD4 — GPIO / USART2_RTS |
| Pino 62 | PD5 — GPIO / USART2_CK |
| Pino 63 | PD6 — GPIO / SPI3_MISO |
| Pino 64 | PD7 — GPIO / SPI3_MOSI |
Aplicações típicas
STM32F334R8T6 é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para STM32F334R8T6 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- High-resolution timer with 217 ps resolution (vs STM32F303RCT6)
- Integrated comparators (7) (vs STM32F334R6T6)
- Wide operating temperature range option (vs STM32F334R8T6)
Notas de projeto
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.
Informações de conformidade
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified; for automotive, consider STM32F334R8T7 or other automotive-grade variants.
