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STMicroelectronics STM32F412VET3TR
- Part No.:
- STM32F412VET3TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
STM32F412VET3TR.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,363
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Product details
Overview
STM32F412VET3TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 100 MHz max CPU frequency, 1 MB Flash, 256 KB SRAM, and integrated USB OTG FS, dual CAN 2.0B, and 17 communication interfaces. It delivers 125 DMIPS and supports real-time motor control, sensor hub operation, and industrial HMI in compact LQFP100 packaging.
For engineers reviewing the STM32F412VET3TR datasheet, STM32F412VET3TR pinout, STM32F412VET3TR application, or STM32F412VET3TR equivalent, key selection criteria include Flash/SRAM capacity, low-power Stop mode current (50 µA typical), ART Accelerator™-enabled zero-wait-state execution, and dual CAN + USB OTG FS coexistence in a single-chip solution.
Technical Context
The device integrates an Adaptive Real-Time Accelerator (ART Accelerator™) enabling 0-wait-state execution from Flash at 100 MHz, and Batch Acquisition Mode (BAM) for ultra-low-power peripheral data capture without CPU wake-up. Its memory subsystem includes flexible FSMC supporting NOR/PSRAM and dual-mode Quad-SPI for external memory expansion.
Timing architecture combines four clock sources - 4–26 MHz HSE, 16 MHz HSI, 32 kHz LSE for RTC, and calibrated 32 kHz LSI - feeding three PLLs (main, audio, and dedicated DFSDM PLL), enabling independent domain clocking for USB, audio, and sigma-delta filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 100 MHz max, 125 DMIPS @ 1.25 DMIPS/MHz (Dhrystone 2.1) |
| Memory | 1 MB embedded Flash (0-wait-state via ART Accelerator™), 256 KB SRAM, plus FSMC & Quad-SPI for external memory |
| Power Efficiency | Run: 112 µA/MHz (peripheral off); Stop (fast wakeup): 50 µA typ @ 25°C; Standby: 2.4 µA @ 25°C, 1.7 V |
| Analog Peripherals | 1×12-bit 2.4 MSPS ADC (16 channels), 2×DFSDM digital filters, 4×PDM interfaces, stereo microphone support |
| Communication | 2×CAN 2.0B, USB OTG FS (device/host/OTG), 4×I²C, 4×USART, 5×SPI/I²S, SDIO, ISO 7816, LIN, IrDA |
| Timers & Control | 17 timers: twelve 16-bit, two 32-bit @ 100 MHz (IC/OC/PWM/encoder), two watchdogs (independent/window), SysTick |
| Package & I/O | LQFP100 (14×14 mm), 109 fast I/Os @ 100 MHz, 114 5 V-tolerant pins, SWD/JTAG debug, ETM trace |
Pinout & Package
LQFP100 package (14 × 14 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, ECOPACK2 certified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power supply and analog ground | Dual-domain power: VDD/VSS for digital core & I/Os (1.7–3.6 V), VDDA/VSSA for ADC/RTC/PLL (2.4–3.6 V) |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | 109 pins support up to 100 MHz toggle; 114 pins are 5 V-tolerant, enabling direct interfacing with legacy 5 V logic |
| PC13–PC15 | RTC oscillator inputs | Support 32.768 kHz crystal (LSE) for hardware calendar and subsecond-accurate RTC operation |
| PA11/PA12 | USB OTG FS D+/D− | Integrated full-speed PHY with internal transceivers; no external components required for basic USB device/host |
| PB8/PB9, PD0/PD1 | CAN1/CAN2 TX/RX | Dual independent CAN 2.0B controllers with dedicated Tx/Rx pins; supports time-triggered communication |
| PF0–PF15 | FSMC address/data bus | 16-bit parallel interface for NOR flash, PSRAM, or LCD modules; enables direct memory-mapped display or storage access |
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) | Allows DMA-driven peripheral data capture (ADC, DFSDM, SPI) during CPU sleep, reducing system-wide power by >40% in sensor polling |
| Dual CAN + USB OTG FS | Simultaneous CAN bus diagnostics and USB-based firmware updates or data export - critical for field-serviceable industrial nodes |
| DFSDM + PDM interfaces | Hardware-accelerated sigma-delta filtering and 4-channel PDM input enable direct connection of MEMS microphones without external DSP |
| Flexible clock system | Three independent PLLs (main, audio, DFSDM) allow concurrent USB timing (48 MHz), I²S audio (e.g., 44.1 kHz × 256), and sensor sampling clocks |
Applications
| Industrial Motor Control | Medical Sensor Hub |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with position feedback, current sensing, and field-oriented control (FOC). IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing PWM generation (TIM1/TIM8), ADC sampling (2.4 MSPS), and CAN-based command interface. Use Value: 100 MHz Cortex-M4+FPU enables real-time FOC math; dual CAN supports motor command + safety monitoring buses; 1 MB Flash stores multiple motor profiles. |
Use Scenario: Wearable ECG/PPG sensor aggregator with local signal processing and Bluetooth LE gateway. IC Role / Device Role / Timing Role: Central sensor hub acquiring multi-channel analog biosignals via ADC/DFSDM, applying digital filtering, and buffering data for wireless transmission. Use Value: Integrated DFSDM + PDM handles raw microphone/accelerometer streams; BAM reduces average current to <15 µA during idle sensing; USB OTG enables clinical firmware updates. |
| Smart HVAC Controller | Connected Printer Engine |
Use Scenario: Wall-mounted HVAC controller integrating temperature/humidity sensing, fan speed control, Zigbee/Wi-Fi connectivity, and local UI rendering. IC Role / Device Role / Timing Role: System-on-chip managing environmental ADC reads, PWM fan control, CAN-linked zone actuators, and USB-based configuration interface. Use Value: 256 KB SRAM buffers real-time sensor history; LCD parallel interface drives 8080-mode displays; dual CAN links to compressor/inverter modules. |
Use Scenario: Laser printer engine board handling raster image processing, stepper motor sequencing, toner density control, and host USB printing. IC Role / Device Role / Timing Role: Real-time motion controller synchronizing laser scan, paper feed, and fuser temperature via high-resolution timers and ADC. Use Value: Twelve 16-bit timers provide precise PWM for motors and heaters; USB OTG FS supports direct PC print job ingestion; 1 MB Flash stores font/GUI assets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F407VGT6 | Same LQFP100 package, but 1 MB Flash/192 KB RAM, no DFSDM, no BAM, USB OTG HS (not FS), no Quad-SPI | Lacks integrated PDM/DFSDM for microphone arrays; higher active power (140 µA/MHz); no low-power batch acquisition | Select when USB high-speed host capability or legacy F407 peripheral compatibility is required over sensor-hub efficiency |
| STM32F413VGT6 | 1 MB Flash/256 KB RAM, adds AES crypto, XMC interface, and enhanced DFSDM (8 PDM channels), same ART/BAM/USB OTG FS | Includes hardware encryption for secure OTA updates; wider memory interface for larger display buffers | Select when cryptographic security or expanded PDM channel count (e.g., 360° audio beamforming) is mandatory |
Compared with STM32F407VGT6, STM32F412VET3TR provides superior low-power sensor acquisition via BAM and DFSDM, while STM32F413VGT6 extends its capabilities with crypto acceleration and broader PDM support - making the VET3TR optimal for cost-sensitive, battery-aware industrial and medical edge nodes.
Availability
STM32F412VET3TR is available at Aetrix Electronics and suitable for industrial motor control, medical sensor hubs, and smart HVAC systems requiring stable component supply across long-lifecycle deployments.
Supply support for STM32F412VET3TR 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, designing and manufacturing microcontrollers, power ICs, sensors, and automotive chips since 1987.
The STM32F4 series targets high-performance embedded applications demanding real-time processing, rich connectivity, and energy efficiency - especially in industrial automation, medical devices, and consumer IoT endpoints.
FAQ
What is the maximum operating frequency and associated performance metric?
The STM32F412VET3TR operates at up to 100 MHz using its Arm Cortex-M4 core with FPU. Its performance is quantified at 125 DMIPS (Dhrystone 2.1), equivalent to 1.25 DMIPS per MHz. This rating reflects sustained integer compute throughput under ART Accelerator™-enabled zero-wait-state Flash execution, validated across voltage (1.7–3.6 V) and temperature (–40 to +85 °C) ranges per DS11139 Rev 9.
Does this MCU support USB device, host, and OTG functionality simultaneously?
Yes - the integrated USB 2.0 full-speed OTG controller supports device, host, and on-the-go modes via a single PHY. The USB OTG FS peripheral includes dedicated DMA, internal transceivers, and session request protocol (SRP) and host negotiation protocol (HNP) support, enabling dynamic role switching without external components. This is confirmed in Section 3.32 of DS11139 Rev 9.
How many CAN interfaces does the STM32F412VET3TR integrate, and what protocol versions are supported?
The STM32F412VET3TR 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. They operate concurrently with separate Tx/Rx pins (PB8/PB9 for CAN1; PD0/PD1 for CAN2), verified in Section 3.31 and Table 2 of the datasheet.
What low-power modes are available, and what is the lowest achievable current draw?
The MCU offers Run, Sleep, Stop (with Flash in Stop or Deep Power Down), and Standby modes. The lowest quiescent current is 2.4 µA in Standby mode at 25 °C and 1.7 V (without RTC), rising to 12 µA at 85 °C. In Stop mode with Flash in Deep Power Down and slow wakeup, current drops to 18 µA typical at 25 °C - values measured per Section 6.3.21 and Table 33–34 of DS11139 Rev 9.
STM32F412VET3TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-LQFP
- Series:
- STM32F4
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- 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:
- 81
- 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F412VET3TR FAQ
1.How can I place an order for STM32F412VET3TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F412VET3TR 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 STM32F412VET3TR reliable?
The price and inventory of STM32F412VET3TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F412VET3TR is usually 5 days.
3.What payment methods are accepted for STM32F412VET3TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F412VET3TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F412VET3TR?
STM32F412VET3TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F412VET3TR 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 STM32F412VET3TR?
For technical support, including STM32F412VET3TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F412VET3TR requirements.
6.How does Aetrix verify that STM32F412VET3TR is sourced from the original manufacturer or authorized distributors?
All STM32F412VET3TR 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 STM32F412VET3TR meets industry standards.
7.What is the process for return or replacement of STM32F412VET3TR?
All STM32F412VET3TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F412VET3TR, 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 STM32F412VET3TR part is unused and in its original packaging.
Return procedure for STM32F412VET3TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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