STM32F412RET6 - 512KB Flash ARM Cortex-M4F MCU | STMicroelectronics
N.º da peça: STM32F412RET6 ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $5.0632 | $5,06 |
STM32F412RET6 Visão geral
What is an ARM Cortex-M4F microcontroller? It is a 32-bit processor core designed for embedded systems, combining the ARM Cortex-M4 architecture with a hardware floating-point unit (FPU) for efficient digital signal processing (DSP) and math-intensive tasks. The 'F' suffix indicates the presence of the FPU, which accelerates single-precision floating-point operations. In the system hierarchy, the STM32F412RET6 sits within the STM32F4 series of microcontrollers, which are part of the broader STM32 family of 32-bit MCUs from STMicroelectronics. These devices integrate a processor core, memory, and peripherals on a single chip, enabling embedded control in applications ranging from simple sensors to complex motor control systems.
Key features of the STM32F412RET6 include a 100 MHz ARM Cortex-M4F core with FPU, 512 KB flash memory, 256 KB SRAM, and a comprehensive set of peripherals. It offers multiple communication interfaces including USART, SPI, I2C, USB OTG FS, SDIO, and CAN, along with advanced analog peripherals such as 12-bit ADCs, DACs, and comparators. The device also includes a true random number generator (RNG), a cryptographic acceleration cell (AES), and a real-time clock (RTC) with calendar function. The operating voltage range is 1.7V to 3.6V, and the temperature range is -40°C to +85°C, making it suitable for industrial environments.
From a technical depth perspective, the STM32F412RET6 is built on a 90nm process technology, offering a balance between performance and power consumption. The core supports a rich instruction set including DSP instructions and single-cycle multiply-accumulate (MAC) operations, enabling efficient execution of signal processing algorithms. The memory architecture includes a flexible memory controller (FMC) that supports external memory expansion via parallel interfaces, and the device supports a wide range of clock sources including internal RC oscillators, external crystals, and PLLs for precise timing.
Typical applications include industrial automation (PLC, motor control), consumer electronics (smart home hubs, wearables), IoT gateways, and audio processing. The rich peripheral set and high performance make it ideal for applications requiring real-time control and connectivity. For example, in an IoT gateway, the STM32F412RET6 can manage multiple communication protocols (Wi-Fi, Ethernet via external PHY, USB) while handling sensor data acquisition and processing.
When designing with this device, ensure adequate decoupling capacitors (100nF and 4.7uF) are placed close to the power pins, and follow the recommended layout guidelines in the datasheet for the crystal oscillator and USB interface. The device supports multiple low-power modes (Sleep, Stop, Standby) which can be leveraged to optimize battery life in portable applications.
Alternativas drop-in para STM32F412RET6 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com STM32F412RET6 (mesmo formato e footprint) — diferindo em Communication Interfaces, Flash Memory, Package, Random Number Generator, SRAM.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
STM32F412RET7
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
STM32F412RGT6
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
STM32F411RET6
✅ Drop-In✓ Em estoque
$4.02 / unidade
Ver ficha técnica →STM32F412RET6 Classificações máximas e características elétricas
| Core | ARM Cortex-M4F with FPU |
| Frequência máxima de clock | 100 MHz |
| Flash Memory | 512 KB |
| SRAM | 256 KB |
| Tensão de alimentação | 1.7 V to 3.6 V |
| Temperatura de operação | -40C to +85C |
| Encapsulamento | LQFP64 (10x10 mm, 0.5 mm pitch) |
| GPIO Pins | 50 |
| ADC | 3x 12-bit, up to 16 channels |
| DAC | 2x 12-bit |
| Timers | 12x 16-bit, 2x 32-bit |
| Communication Interfaces | USART (4), SPI (5), I2C (3), USB OTG FS, SDIO, CAN (2) |
| DMA | 16 channels |
| RTC | Yes |
| AES Encryption | Yes (hardware) |
| Random Number Generator | Yes (hardware) |
| Status RoHS | Compliant |
Configuração de pinos do STM32F412RET6
| Pino 1 | VBAT — Backup battery supply for RTC and backup registers |
| Pino 2 | PC13 — GPIO or RTC tamper/calendar output |
| Pino 3 | PC14 — GPIO or OSC32_IN (32.768 kHz crystal input) |
| Pino 4 | PC15 — GPIO or OSC32_OUT (32.768 kHz crystal output) |
| Pino 5 | PF0 — GPIO or OSC_IN (main crystal input) |
| Pino 6 | PF1 — GPIO or OSC_OUT (main crystal output) |
| Pino 7 | NRST — Reset (active low) |
| Pino 8 | PC0 — GPIO/ADC12_IN10 |
| Pino 9 | PC1 — GPIO/ADC12_IN11 |
| Pino 10 | PC2 — GPIO/ADC12_IN12 |
| Pino 11 | PC3 — GPIO/ADC12_IN13 |
| Pino 12 | VDD — Digital power supply (3.3V) |
| Pino 13 | VSS — Digital ground |
| Pino 14 | PC4 — GPIO/ADC12_IN14 |
| Pino 15 | PC5 — GPIO/ADC12_IN15 |
| Pino 16 | PB0 — GPIO/ADC12_IN8 |
| Pino 17 | PB1 — GPIO/ADC12_IN9 |
| Pino 18 | PB2 — GPIO/BOOT1 |
| Pino 19 | PB10 — GPIO/I2C2_SCL/USART3_TX |
| Pino 20 | PB11 — GPIO/I2C2_SDA/USART3_RX |
| Pino 21 | VSS — Ground |
| Pino 22 | VDD — Power supply |
| Pino 23 | PB12 — GPIO/SPI2_NSS/I2S2_WS |
| Pino 24 | PB13 — GPIO/SPI2_SCK/I2S2_CK |
| Pino 25 | PB14 — GPIO/SPI2_MISO/I2S2_MCK |
| Pino 26 | PB15 — GPIO/SPI2_MOSI/I2S2_SD |
| Pino 27 | PC6 — GPIO/SDIO_D6 |
| Pino 28 | PC7 — GPIO/SDIO_D7 |
| Pino 29 | PC8 — GPIO/SDIO_D0 |
| Pino 30 | PC9 — GPIO/SDIO_D1 |
| Pino 31 | PA8 — GPIO/USART1_CK/MCO1 |
| Pino 32 | PA9 — GPIO/USART1_TX/USB_OTG_FS_VBUS |
| Pino 33 | PA10 — GPIO/USART1_RX/USB_OTG_FS_ID |
| Pino 34 | PA11 — GPIO/USART1_CTS/USB_OTG_FS_DM |
| Pino 35 | PA12 — GPIO/USART1_RTS/USB_OTG_FS_DP |
| Pino 36 | PA13 — GPIO/SWDIO |
| Pino 37 | VSS — Ground |
| Pino 38 | VDD — Power supply |
| Pino 39 | PA14 — GPIO/SWCLK |
| Pino 40 | PA15 — GPIO/JTDI |
| Pino 41 | PC10 — GPIO/SDIO_D2 |
| Pino 42 | PC11 — GPIO/SDIO_D3 |
| Pino 43 | PC12 — GPIO/SDIO_CK |
| Pino 44 | PD2 — GPIO/SDIO_CMD |
| Pino 45 | PB3 — GPIO/JTDO/SPI1_SCK |
| Pino 46 | PB4 — GPIO/JTRST/SPI1_MISO |
| Pino 47 | PB5 — GPIO/SPI1_MOSI/I2C1_SMBA |
| Pino 48 | PB6 — GPIO/I2C1_SCL/USART1_TX |
| Pino 49 | PB7 — GPIO/I2C1_SDA/USART1_RX |
| Pino 50 | BOOT0 — Boot mode selection |
| Pino 51 | PB8 — GPIO/I2C1_SCL/CAN1_RX |
| Pino 52 | PB9 — GPIO/I2C1_SDA/CAN1_TX |
| Pino 53 | VSS — Ground |
| Pino 54 | VDD — Power supply |
| Pino 55 | PE0 — GPIO/TIM4_ETR |
| Pino 56 | PE1 — GPIO/TIM4_CH1 |
| Pino 57 | PE2 — GPIO/FSMC_A23 |
| Pino 58 | PE3 — GPIO/FSMC_A19 |
| Pino 59 | PE4 — GPIO/FSMC_A20 |
| Pino 60 | PE5 — GPIO/FSMC_A21 |
| Pino 61 | PE6 — GPIO/FSMC_A22 |
| Pino 62 | PD12 — GPIO/FSMC_NE4 |
| Pino 63 | PD13 — GPIO/FSMC_A18 |
| Pino 64 | PD14 — GPIO/FSMC_D0 |
Aplicações típicas
STM32F412RET6 é adequado para 6 aplicaçãos: Industrial Automation, IoT Gateway, Motor Control, Consumer Electronics, Audio Processing, Medical Devices.
Industrial Automation
The STM32F412RET6 is ideal for industrial automation due to its 100 MHz Cortex-M4F core, advanced timers for PWM generation, and multiple communication interfaces (CAN, USART, SPI) for connecting to sensors and actuators. Its 12-bit ADC with up to 16 channels enables precise analog signal acquisition for process control. The device operates over -40°C to +85°C, suitable for harsh industrial environments. In a PLC, the STM32F412RET6 can handle real-time control loops, communicate via Modbus over RS-485, and interface with HMI displays. The hardware AES encryption ensures secure communication in industrial IoT networks. The 512 KB flash allows storing complex control algorithms and data logging. The FMC supports external memory expansion for larger data buffers. The low-power modes help reduce energy consumption in remote monitoring stations. Overall, the STM32F412RET6 provides a robust and flexible platform for industrial control systems.
Recomendado
IoT Gateway
The STM32F412RET6 is well-suited for IoT gateways due to its rich connectivity options including USB OTG FS, SDIO for external storage, and multiple UARTs for interfacing with Wi-Fi or cellular modules. The hardware AES encryption accelerates secure communication protocols like TLS. The 256 KB SRAM provides ample buffer for network packets and sensor data. The device can run an RTOS to manage multiple tasks such as data acquisition, protocol handling, and cloud connectivity. In a typical IoT gateway, the STM32F412RET6 collects data from sensors via I2C/SPI, processes it locally, and transmits it to the cloud via Wi-Fi (using an external module like ESP8266) or Ethernet (via an external PHY). The low-power modes enable battery-powered operation for remote sensors. The RTC with calendar function allows time-stamping of data. The device's 100 MHz performance ensures smooth handling of MQTT and CoAP protocols. The FMC can be used to expand memory for data logging. Overall, the STM32F412RET6 is a powerful and efficient choice for IoT edge devices.
Recomendado
Motor Control
The STM32F412RET6 excels in motor control applications, particularly for brushless DC (BLDC) and permanent magnet synchronous motors (PMSM). Its advanced timers generate complementary PWM signals with dead-time insertion, essential for driving three-phase inverters. The 12-bit ADC with up to 16 channels can sample motor currents and voltages simultaneously for FOC (Field-Oriented Control). The Cortex-M4F with FPU accelerates complex control algorithms, enabling high-speed loops. The device supports various encoder interfaces (e.g., Hall sensors, quadrature encoders) for position feedback. In a typical motor control system, the STM32F412RET6 reads current sensors, computes the FOC algorithm, and updates PWM duty cycles in real-time. The CAN interface allows communication with higher-level controllers. The device's 100 MHz clock ensures low latency in control loops. The 512 KB flash can store multiple motor profiles and diagnostic routines. The operating temperature range makes it suitable for industrial drives. Overall, the STM32F412RET6 provides a cost-effective and high-performance solution for motor control.
Recomendado
Consumer Electronics
The STM32F412RET6 is widely used in consumer electronics such as smart home hubs, wearables, and audio devices. Its compact LQFP64 package and low power consumption make it ideal for portable devices. The USB OTG FS allows direct connection to smartphones or PCs for data transfer and charging. The device supports various display interfaces (e.g., SPI, parallel) for driving small TFT screens. The audio capabilities include I2S for high-quality audio playback. In a smart home hub, the STM32F412RET6 can manage Zigbee, Z-Wave, or Bluetooth modules via UART/SPI, process sensor data, and control actuators. The hardware AES ensures secure communication with cloud services. The 512 KB flash can store user preferences and firmware updates. The device's rich peripheral set reduces the need for external components, lowering BOM cost. The low-power modes extend battery life in wearables. Overall, the STM32F412RET6 offers a balanced combination of performance, features, and cost for consumer products.
Recomendado
Audio Processing
The STM32F412RET6 is suitable for audio processing applications such as voice recognition, audio effects, and sound synthesis. The Cortex-M4F with FPU and DSP instructions enables efficient implementation of audio algorithms like FIR filters, FFT, and echo cancellation. The device includes I2S interfaces for connecting to audio codecs and DACs. The 12-bit ADC can sample analog audio signals, while the DAC can output audio directly. In a voice-controlled device, the STM32F412RET6 can capture audio via a microphone, perform keyword spotting, and trigger actions. The 256 KB SRAM provides buffer space for audio frames. The 100 MHz clock ensures real-time processing of audio streams. The device supports DMA for efficient data transfer between peripherals and memory, reducing CPU load. The low-power modes allow always-on listening in battery-powered devices. The hardware AES can encrypt audio data for secure transmission. Overall, the STM32F412RET6 is a powerful platform for embedded audio applications.
Recomendado
Medical Devices
The STM32F412RET6 is used in medical devices such as patient monitors, infusion pumps, and diagnostic equipment. Its high performance and rich analog peripherals enable precise measurement and control. The 12-bit ADC with up to 16 channels can acquire multiple physiological signals (e.g., ECG, temperature, pressure). The device supports various communication interfaces for data transfer to central monitoring systems. The hardware AES ensures secure handling of patient data. The operating temperature range and reliability make it suitable for medical environments. In a patient monitor, the STM32F412RET6 can process ECG signals, display waveforms on a TFT screen, and send alerts via Wi-Fi or Bluetooth. The 512 KB flash can store patient records and firmware updates. The low-power modes are beneficial for portable devices. The device's real-time capabilities ensure accurate monitoring. Overall, the STM32F412RET6 provides a reliable and secure platform for medical applications.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para STM32F412RET6 — comparação, orientação de projeto e informações de conformidade.
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Comparação com alternativas
| Parâmetro | Este produto | STM32F412RET7 | STM32F412RGT6 | STM32F411RET6 | STM32F412CEU6 | LPC4357FET256 |
|---|---|---|---|---|---|---|
| Package | LQFP64 | LQFP64 - same | LQFP64 - same | LQFP64 - same | UFQFPN48 - different | LBGA256 - different |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | NXP Semiconductors |
| Core | ARM Cortex-M4F @ 100 MHz | ARM Cortex-M4F @ 100 MHz | ARM Cortex-M4F @ 100 MHz | ARM Cortex-M4F @ 100 MHz | ARM Cortex-M4F @ 100 MHz | Dual-core Cortex-M4F/M0 @ 204 MHz |
| Flash Memory | 512 KB | 512 KB | 1 MB | 512 KB | 512 KB | 1 MB |
| SRAM | 256 KB | 256 KB | 256 KB | 128 KB | 256 KB | 136 KB |
| Operating Temperature | -40C to +85C | -40C to +105C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| USB OTG FS | Yes | Yes | Yes | Yes | Yes | Yes (HS with external PHY) |
| Hardware AES | Yes | Yes | Yes | No | Yes | Yes |
| Price (1k) | $5.44 | $5.80 | $6.50 | $4.90 | $5.20 | $8.00 |
Principais diferenciais
- Larger SRAM (256 KB) compared to STM32F411RET6 (vs STM32F411RET6)
- Hardware AES and RNG for security (vs STM32F411RET6)
- Flexible Memory Controller (FMC) for external memory (vs STM32F411RET6)
Notas de projeto
The STM32F412RET6 operates from 1.7V to 3.6V. Use a 100nF ceramic capacitor on each VDD pin and a 4.7uF capacitor on the main VDD rail. For the VDDA (analog supply) pin, use a 1uF capacitor and a ferrite bead to isolate analog noise. The VBAT pin should be connected to a backup battery (e.g., CR2032) for RTC operation, or tied to VDD if not used.
For the main crystal oscillator (HSE), place the crystal and load capacitors (typically 20pF) as close to the OSC_IN/OSC_OUT pins as possible, with a ground guard ring around them. For the 32.768 kHz LSE crystal, similar layout rules apply. Keep the SWD interface traces short and avoid routing near high-speed signals. The USB OTG FS pins (PA11, PA12) require 22-ohm series resistors and proper impedance matching for full-speed operation.
Ensure the BOOT0 pin is properly configured to boot from flash (tied low). If using the FMC to interface external memory, verify the timing parameters in the reference manual (RM0402). The device has a brown-out reset (BOR) that can be configured via option bytes; ensure it is set appropriately for your supply voltage. Do not exceed the absolute maximum ratings on any pin, especially the analog inputs.
Informações de conformidade
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified; for automotive use consider STM32F412RET7 (extended temp) or other automotive-grade variants.
