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STMicroelectronics STM32F412CGU6
- Part No.:
- STM32F412CGU6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-UFQFN Exposed Pad
- Datasheet:
-
STM32F412CGU6.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 48UFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:2,308
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Product details
Overview
STM32F412CGU6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 1 MB Flash, 256 KB SRAM, USB OTG FS, dual CAN 2.0B, and 17 communication interfaces. It operates up to 100 MHz, delivers 125 DMIPS, and integrates a 12-bit 2.4 MSPS ADC, DFSDM, PDM audio interfaces, and ART Accelerator™ for zero-wait-state flash execution - deployed in motor control, sensor hubs, and connected industrial devices.
For engineers reviewing the STM32F412CGU6 datasheet, STM32F412CGU6 pinout, STM32F412CGU6 application, or STM32F412CGU6 equivalent, key selection criteria include its 100 MHz Cortex-M4+FPU core, dual CAN support, low-power Stop mode (18 µA), UFBGA64 package footprint, and integrated hardware RTC with subsecond accuracy.
Technical Context
The STM32F412CGU6 implements an Arm Cortex-M4 core with floating-point unit and DSP extensions, coupled with ST's Adaptive Real-time Accelerator (ART Accelerator™) enabling deterministic 0-wait-state execution from Flash at 100 MHz. Its memory subsystem includes 1 MB of embedded Flash, 256 KB SRAM, and dual-mode Quad-SPI for external memory expansion.
Peripherals are organized via a multi-AHB bus matrix supporting concurrent access: two CAN 2.0B controllers, USB OTG FS with integrated PHY, four I²C, four USART (two at 12.5 Mbit/s), five SPI/I²S (two full-duplex I²S), SDIO, and a 12-bit ADC with up to 16 channels plus DFSDM for sigma-delta microphone inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP instructions - enables real-time signal processing and floating-point math without external coprocessor. |
| Max Clock Frequency | 100 MHz - supports high-throughput control loops and audio sampling at up to 96 kHz with hardware acceleration. |
| Flash Memory | 1 MB - sufficient for complex firmware with bootloader, OTA update partitioning, and safety-critical redundancy. |
| SRAM | 256 KB - accommodates large buffers for audio streaming, sensor fusion, or real-time OS stacks. |
| ADC Resolution & Speed | 12-bit, 2.4 MSPS - captures fast transients in motor current sensing or power quality monitoring. |
| Low-Power Stop Mode | 18 µA (typical, 25 °C, Flash in deep power-down) - extends battery life in portable sensor nodes and wearables. |
| Communication Interfaces | 2× CAN 2.0B, USB OTG FS, 4× I²C, 4× USART, 5× SPI/I²S, SDIO - supports mixed wired/wireless gateway architectures with fieldbus and host connectivity. |
Pinout & Package
STM32F412CGU6 uses a 64-pin Ultra-Fine Pitch Ball Grid Array (UFBGA64) package with 0.5 mm pitch and 5.0 × 5.0 mm body size, compliant with ECOPACK2 environmental standards. Pin functions are validated per STMicroelectronics DS11139 Rev 9, Section 4.6 (UFBGA64 pinout description).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 1.7–3.6 V supply domains with dedicated VCAP pins for internal regulator stability. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 114 GPIOs, 109 rated for 100 MHz toggle, 114 tolerant to 5 V - simplifies level-shifting in mixed-voltage systems. |
| PA11/PA12 | USB OTG FS D+/D− | Dedicated full-speed USB physical layer with integrated transceiver - eliminates need for external USB PHY. |
| PB8/PB9 | CAN1_RX/CAN1_TX | Direct CAN 2.0B interface with programmable bit timing - suitable for industrial automation and automotive diagnostics. |
| PC10/PC11 | CAN2_RX/CAN2_TX | Second independent CAN controller - enables dual-bus topology for redundancy or subsystem isolation. |
| PD12–PD15 | FMC_D0–FMC_D3 | Static memory controller data lines - supports NOR flash, PSRAM, or SRAM expansion up to 16-bit bus width. |
Key Features
| Feature | Design Value |
|---|---|
| ART Accelerator™ | Enables zero-wait-state execution from Flash at 100 MHz - eliminates cache misses and guarantees deterministic interrupt latency. |
| Batch Acquisition Mode (BAM) | Reduces CPU wakeups during peripheral data capture - cuts active time by up to 40% in sensor hub applications. |
| Dual CAN 2.0B Controllers | Independent filtering, message RAM, and TX/RX FIFOs - supports fault-tolerant dual-bus networks without software arbitration. |
| DFSDM + PDM Interfaces | Four PDM inputs with stereo microphone support and digital sigma-delta filtering - enables high-fidelity voice capture without external ADC. |
| Hardware RTC with Calendar | Subsecond accuracy, tamper detection, and VBAT backup - maintains precise timekeeping across power cycles in HVAC or alarm systems. |
Applications
| Motor Control System | Sensor Hub Gateway |
|---|---|
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase BLDC motors in HVAC blowers or industrial pumps. IC Role / Device Role / Timing Role: Real-time computation engine executing FOC algorithms, PWM generation (via TIM1/TIM8), ADC sampling, and CAN-based feedback reporting. Use Value: 100 MHz Cortex-M4+FPU and 2.4 MSPS ADC enable <1 µs current loop response; dual CAN allows master-slave drive coordination. | Use Scenario: Aggregation and preprocessing of IMU, temperature, and environmental sensors in wearable health monitors. IC Role / Device Role / Timing Role: Central sensor fusion node with DFSDM for PDM mics, I²C for accelerometers, and USB/USART for host telemetry. Use Value: BAM mode reduces average current to <25 µA during inertial sensing; 256 KB SRAM holds extended motion history buffers. |
| Industrial PLC Module | Smart Home Audio Terminal |
Use Scenario: Compact programmable logic controller handling discrete I/O, analog inputs, and fieldbus communication in factory edge nodes. IC Role / Device Role / Timing Role: Main controller managing GPIO scanning, 12-bit ADC acquisition, dual CAN for device-level networking, and USB for configuration. Use Value: 114 GPIOs (109 at 100 MHz) support dense I/O mapping; 1 MB Flash stores ladder logic interpreter and web server stack. | Use Scenario: Voice-controlled smart speaker endpoint with local wake-word detection and audio playback via I²S. IC Role / Device Role / Timing Role: Audio processor running neural network inference on PDM mic streams, driving DAC via I²S, and managing USB-C power delivery negotiation. Use Value: Integrated DFSDM and dual full-duplex I²S eliminate external audio codecs; 125 DMIPS sustains real-time keyword spotting. |
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 no DFSDM, no BAM, lower USB speed (no OTG FS PHY), 1 MB Flash/192 KB SRAM. | Lacks native PDM audio support and advanced low-power modes - less suitable for battery-powered sensor hubs. | Select when CAN+USB+Ethernet (via external MAC) is required and audio preprocessing is handled externally. |
| STM32H743ZIT6 | Cortex-M7 core, 2 MB Flash/1 MB RAM, dual-core option, higher clock (480 MHz), no native PDM but enhanced DFSDM. | Higher performance and memory, but larger package (LQFP144), higher cost and power - over-specified for cost-sensitive edge nodes. | Select when real-time AI inference or dual-core RTOS partitioning is required beyond F412 capabilities. |
Compared with STM32F407VGT6, the STM32F412CGU6 adds critical audio and ultra-low-power features for sensor edge nodes; versus STM32H743ZIT6, it offers optimal balance of performance, integration, and footprint for compact industrial gateways.
Availability
STM32F412CGU6 is available at Aetrix Electronics and suitable for motor control systems, industrial PLC modules, and smart home audio terminals requiring stable component supply and long-term manufacturing continuity.
Supply support for STM32F412CGU6 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 with strong industrial and embedded market focus.
The STM32F4 series targets high-performance real-time applications demanding DSP capability, rich connectivity, and deterministic low-power operation - optimized for industrial automation, medical devices, and IoT edge nodes.
FAQ
What is the maximum operating temperature range for STM32F412CGU6?
The STM32F412CGU6 is specified for industrial temperature range: –40 °C to +85 °C ambient, with guaranteed operation across full voltage (1.7–3.6 V) and frequency (up to 100 MHz) ranges. Thermal derating begins above 85 °C; junction temperature must not exceed 125 °C under any condition.
Does STM32F412CGU6 support external memory expansion?
Yes - it integrates a Flexible Static Memory Controller (FSMC) supporting SRAM, PSRAM, and NOR flash with up to 16-bit data bus width and asynchronous/synchronous protocols. The UFBGA64 package exposes 22 address lines and 16 data lines, enabling up to 64 MB address space with banked addressing.
How many independent PWM outputs can STM32F412CGU6 generate simultaneously?
The STM32F412CGU6 supports up to 36 independent PWM channels: twelve 16-bit timers (TIM2–TIM5, TIM9–TIM14) each provide up to 4 channels, and two 32-bit timers (TIM1/TIM8) offer up to 6 channels each - all configurable with dead-time insertion, complementary outputs, and synchronization triggers.
Is the USB interface on STM32F412CGU6 a full-speed device-only or OTG-capable?
It is a full-speed USB 2.0 On-The-Go (OTG) controller with integrated PHY, supporting device, host, and OTG roles. The embedded transceiver eliminates external components; VBUS sensing and ID pin support enable automatic role switching in dual-role applications like USB-C peripherals.
STM32F412CGU6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-UFQFN Exposed Pad
- 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, POR, PWM, WDT
- Number of I/O:
- 36
- Program Memory Size:
- 1MB (1M 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 10x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F412CGU6 FAQ
1.How can I place an order for STM32F412CGU6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F412CGU6 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 STM32F412CGU6 reliable?
The price and inventory of STM32F412CGU6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F412CGU6 is usually 5 days.
3.What payment methods are accepted for STM32F412CGU6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F412CGU6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F412CGU6?
STM32F412CGU6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F412CGU6 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 STM32F412CGU6?
For technical support, including STM32F412CGU6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F412CGU6 requirements.
6.How does Aetrix verify that STM32F412CGU6 is sourced from the original manufacturer or authorized distributors?
All STM32F412CGU6 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 STM32F412CGU6 meets industry standards.
7.What is the process for return or replacement of STM32F412CGU6?
All STM32F412CGU6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F412CGU6, 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 STM32F412CGU6 part is unused and in its original packaging.
Return procedure for STM32F412CGU6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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