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STMicroelectronics STM32F412RET6
- Part No.:
- STM32F412RET6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32F412RET6.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,715
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Product details
Overview
STM32F412RET6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 MCU with FPU, 100 MHz max clock, 512 KB Flash, 256 KB SRAM, and integrated USB OTG FS, dual CAN 2.0B, and 12-bit 2.4 MSPS ADC. It delivers 125 DMIPS and supports BAM for sensor hub and low-power industrial control applications.
For engineers reviewing the STM32F412RET6 datasheet, STM32F412RET6 pinout, STM32F412RET6 application, or STM32F412RET6 equivalent, key selection criteria include flash size (512 KB), package (LQFP64), USB OTG FS + dual CAN connectivity, ART Accelerator™-enabled zero-wait-state flash execution, and verified low-power stop mode current (18–75 µA).
Technical Context
The device integrates an Adaptive Real-time Accelerator (ART Accelerator™) enabling deterministic 0-wait-state execution from Flash at 100 MHz. Its memory subsystem includes 512 KB embedded Flash, 256 KB SRAM, flexible FSMC for NOR/PSRAM, and dual-mode Quad-SPI.
Peripherals are organized via multi-AHB bus matrix and 16-stream DMA. Core timing infrastructure includes two 32-bit timers (100 MHz), RTC with subsecond accuracy, and dual CAN 2.0B controllers supporting industrial fieldbus interoperability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 100 MHz max frequency, 125 DMIPS performance |
| Flash Memory | 512 KB embedded Flash with ART Accelerator™ for zero-wait-state execution |
| SRAM | 256 KB general-purpose SRAM, including 64 KB core-coupled memory (CCM) |
| ADC | 1× 12-bit, 2.4 MSPS ADC with up to 16 channels and hardware oversampling |
| Communication | 2× CAN 2.0B, USB OTG FS with PHY, 4× USART, 5× SPI/I2S, 4× I2C, SDIO |
| Timers | Up to 17 timers: twelve 16-bit, two 32-bit (100 MHz), two watchdogs, SysTick |
| Power Modes | Run (112 µA/MHz), Stop (18–75 µA), Standby (2.4 µA @25°C), VBAT RTC support |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with ECOPACK2 compliance and 51 user-accessible GPIOs (109 fast I/Os total, 114 5V-tolerant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Core and I/O power domains (1.7–3.6 V); separate VCAP pins for internal regulator stability |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external reset supervisor circuits |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | 51 configurable GPIOs in LQFP64; all support interrupt, most support 5V tolerance and remappable alternate functions |
| PA9/PA10 | USB OTG FS DM/DP | Dedicated full-speed USB transceiver pins with internal pull-up; no external PHY required |
| PB8/PB9 | CAN1_RX/CAN1_TX | First CAN controller interface; requires external transceiver for bus coupling |
| PD0/PD1 | CAN2_RX/CAN2_TX | Second independent CAN 2.0B controller; enables dual-bus diagnostics or redundancy |
Key Features
| Feature | Design Value |
|---|---|
| ART Accelerator™ | Eliminates Flash wait states at 100 MHz, enabling deterministic real-time code execution without SRAM shadowing |
| Batch Acquisition Mode (BAM) | Reduces CPU wakeups during sensor data collection by batching peripheral triggers into single DMA bursts |
| Dual CAN 2.0B Controllers | Supports concurrent CAN FD-ready networks (with external transceivers) for automotive diagnostics or industrial redundancy |
| USB OTG FS with Embedded PHY | Enables host/device/OTG operation without external transceiver; simplifies BOM and board layout |
| DFSDM + PDM Interfaces | Direct sigma-delta microphone input via 4× PDM interfaces and digital filtering-no external codec required |
Applications
| Motor Control System | Industrial PLC Node |
|---|---|
Use Scenario: Closed-loop servo drive with encoder feedback and PWM-driven gate drivers. IC Role / Device Role / Timing Role: Main controller executing FOC algorithms, managing 100 MHz timer-based PWM generation, and synchronizing ADC sampling with motor phase currents. Use Value: 12-bit 2.4 MSPS ADC enables precise current sensing; dual 32-bit timers provide independent high-resolution PWM channels with quadrature encoder input support. | Use Scenario: Distributed I/O module in factory automation with fieldbus communication and local logic execution. IC Role / Device Role / Timing Role: Central processing unit handling ladder logic, dual CAN for PROFINET/DeviceNet compatibility, and USB for configuration and firmware updates. Use Value: Dual CAN 2.0B controllers allow simultaneous master/slave operation; 512 KB Flash accommodates runtime interpreter and safety-certified firmware partitions. |
| Wearable Sensor Hub | Smart HVAC Controller |
Use Scenario: Ultra-low-power wearable aggregating accelerometer, gyroscope, and PDM microphone data. IC Role / Device Role / Timing Role: Sensor fusion processor using BAM to batch-acquire data, DFSDM for direct PDM mic input, and RTC for time-stamped logging. Use Value: Stop mode current as low as 18 µA extends battery life; integrated DFSDM eliminates external audio codec and reduces PCB area. | Use Scenario: Wall-mounted climate controller with touch UI, environmental sensors, and wireless gateway interface. IC Role / Device Role / Timing Role: Application processor managing display (8080/6800 LCD interface), temperature/humidity ADC inputs, and USB/SDIO for firmware updates and data logging. Use Value: Parallel LCD interface drives 320×240 displays directly; 256 KB SRAM buffers UI assets and sensor history without external memory. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F407VGT6 | Same Cortex-M4 core, but 1 MB Flash, no BAM, no DFSDM, only 1 CAN, no USB OTG FS PHY | Higher Flash capacity suits bootloader+application separation; lacks integrated audio and ultra-low-power sensor acquisition features | Select when legacy F407 ecosystem compatibility or larger Flash is prioritized over low-power sensor hub capability |
| STM32F413RGY6 | Same package (UFQFPN48), 1 MB Flash, adds AES crypto, no USB OTG FS PHY, only 1 CAN | Better security for connected devices; missing second CAN and USB PHY limits dual-interface gateway use | Select for secure OTA update scenarios where cryptographic acceleration outweighs dual-CAN and USB OTG FS requirements |
Compared with STM32F407VGT6 and STM32F413RGY6, the STM32F412RET6 uniquely balances 512 KB Flash, dual CAN, USB OTG FS with embedded PHY, and BAM-optimized low-power sensor acquisition-making it optimal for compact industrial gateways and wearable hubs requiring both connectivity and efficiency.
Availability
STM32F412RET6 is available at Aetrix Electronics and suitable for industrial PLC nodes, wearable sensor hubs, motor control systems, and smart HVAC controllers requiring stable component supply across long-lifecycle deployments.
Supply support for STM32F412RET6 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, specializing in microcontrollers, power management, sensors, and automotive ICs.
The STM32F4 series targets high-performance embedded applications demanding real-time responsiveness, rich connectivity, and energy efficiency-especially in industrial automation, medical devices, and consumer IoT.
FAQ
What is the maximum operating frequency and how is it achieved?
The STM32F412RET6 achieves 100 MHz maximum CPU frequency using its Adaptive Real-time Accelerator (ART Accelerator™), which caches Flash instruction fetches to eliminate wait states. This allows deterministic execution directly from 512 KB embedded Flash without requiring code relocation to SRAM-critical for real-time control loops and interrupt latency consistency.
Does this MCU support USB device, host, and OTG functionality without external components?
Yes-the STM32F412RET6 integrates a full-speed USB 2.0 OTG controller with an embedded PHY. It supports device, host, and OTG modes using only the dedicated PA9 (DM) and PA10 (DP) pins and standard USB termination resistors. No external transceiver or level shifter is needed, reducing BOM cost and board space.
How many CAN interfaces does the STM32F412RET6 have, and what protocol versions are supported?
The STM32F412RET6 integrates two independent bxCAN controllers compliant with ISO 11898-1:2015 (CAN 2.0B Active). Both support standard (11-bit) and extended (29-bit) identifiers, programmable bit timing, and automatic retransmission. Neither supports CAN FD natively; external transceivers are required for physical layer interfacing.
What low-power modes are available, and what is the lowest achievable current draw?
The STM32F412RET6 offers Run, Sleep, Stop (two variants), and Standby modes. In Stop mode with Flash in Deep Power Down and slow wakeup, typical current is 18 µA at 25 °C (max 40 µA). Standby mode draws 2.4 µA at 25 °C without RTC, and VBAT mode sustains RTC and backup registers at 1 µA-enabling multi-year battery operation in sensor endpoints.
STM32F412RET6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32F4
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 100MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, IrDA, LINbus, MMC/SD/SDIO, QSPI, SPI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, LCD, POR, PWM, WDT
- Number of I/O:
- 50
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 3.6V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F412RET6 FAQ
1.How can I place an order for STM32F412RET6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F412RET6 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 STM32F412RET6 reliable?
The price and inventory of STM32F412RET6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F412RET6 is usually 5 days.
3.What payment methods are accepted for STM32F412RET6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F412RET6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F412RET6?
STM32F412RET6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F412RET6 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 STM32F412RET6?
For technical support, including STM32F412RET6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F412RET6 requirements.
6.How does Aetrix verify that STM32F412RET6 is sourced from the original manufacturer or authorized distributors?
All STM32F412RET6 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 STM32F412RET6 meets industry standards.
7.What is the process for return or replacement of STM32F412RET6?
All STM32F412RET6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F412RET6, 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 STM32F412RET6 part is unused and in its original packaging.
Return procedure for STM32F412RET6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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