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STMicroelectronics STM32F412CEU6
- Part No.:
- STM32F412CEU6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-UFQFN Exposed Pad
- Datasheet:
-
STM32F412CEU6.pdf
- Description:
- IC MCU 32BIT 512KB FLSH 48UFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:3,034
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Product details
Overview
STM32F412CEU6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 100 MHz max clock, 512 KB flash, 256 KB SRAM, and USB OTG FS interface - deployed in sensor hubs, wearable devices, and industrial PLCs for real-time control with low-power operation.
For engineers reviewing the STM32F412CEU6 datasheet, STM32F412CEU6 pinout, STM32F412CEU6 application, or STM32F412CEU6 equivalent, key selection criteria include flash size (512 KB), package (UFQFPN48), USB OTG FS support, dual CAN 2.0B interfaces, and BAM-enabled power efficiency for battery-constrained edge nodes.
Technical Context
The device integrates an ART Accelerator™ enabling zero-wait-state execution from flash at 100 MHz, and Batch Acquisition Mode (BAM) to reduce active power during peripheral data capture. It supports dual CAN 2.0B controllers, SDIO for eMMC/SD card interfacing, and DFSDM with PDM microphone input for audio preprocessing.
Its memory subsystem includes flexible external static memory controller (FSMC) for NOR/PSRAM and dual-mode Quad-SPI for high-speed serial flash. The 12-bit, 2.4 MSPS ADC supports up to 16 channels with hardware oversampling, while the RTC delivers subsecond accuracy with calendar functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 100 MHz max frequency - enables DSP-intensive tasks like motor control or audio filtering without external co-processors. |
| Flash Memory | 512 KB embedded flash - sufficient for complex firmware with bootloader, OTA update partition, and application logic in single-chip designs. |
| SRAM | 256 KB SRAM including 64 KB CCM (core-coupled memory) - allows time-critical ISR code and stack to execute without cache misses. |
| USB Interface | USB 2.0 full-speed OTG controller with integrated PHY - supports device/host/OTG roles without external transceiver, reducing BOM count. |
| ADC | 12-bit, 2.4 MSPS ADC with up to 16 channels - captures fast analog signals (e.g., motor current sensing) with hardware oversampling for effective 14-bit resolution. |
| Low-Power Modes | Stop mode down to 18 µA (deep power-down), Standby at 2.4 µA - extends battery life in always-on sensor nodes and wearables. |
| Communication Peripherals | Up to 4× I²C, 4× USART, 5× SPI/I²S, 2× CAN 2.0B, SDIO - enables concurrent connectivity to displays, sensors, wireless modules, and storage in compact IoT gateways. |
Pinout & Package
STM32F412CEU6 is housed in a 48-pin UFQFPN (7 × 7 mm) package with 0.5 mm pitch, RoHS-compliant and ECOPACK2 certified. Pin functions are validated per ST's DS11139 Rev 9, Section 4.2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power supply and ground rails | Dual-domain supply (digital/analog) with dedicated VDDA/VSSA ensures clean ADC reference and stable core operation. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15 | General-purpose I/Os | Up to 109 fast I/Os (100 MHz toggle), 114 5V-tolerant pins - simplifies level-shifting in mixed-voltage systems and legacy interface integration. |
| PA9/PA10, PB14/PB15 | USB D+/D−, CAN1_RX/CAN1_TX | Dedicated USB OTG FS and CAN1 signal routing - avoids software remapping and guarantees timing integrity for real-time protocols. |
| PF0–PF15 | Alternate function I/Os | Supports FSMC, Quad-SPI, LCD parallel interface (8080/6800 modes) - enables direct connection to external displays or memory without glue logic. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts 1.65–5.5 V logic - compatible with diverse reset supervisors and pushbutton circuits. |
Key Features
| Feature | Design Value |
|---|---|
| ART Accelerator™ | Enables 0-wait-state execution from flash at 100 MHz - eliminates instruction fetch stalls and improves deterministic real-time response. |
| Batch Acquisition Mode (BAM) | Reduces CPU wakeups during peripheral data capture (e.g., ADC, DFSDM) - cuts active power by offloading acquisition sequencing to hardware. |
| Dual CAN 2.0B Controllers | Independent CAN1/CAN2 with programmable bit timing and FIFO buffering - supports redundant bus architectures or multi-network gateway applications. |
| DFSDM + PDM Interfaces | 2 digital filters for sigma-delta modulators and 4 PDM inputs - enables stereo digital microphone arrays with on-chip decimation, eliminating external audio codecs. |
| True Random Number Generator (RNG) | FIPS-compliant entropy source - provides cryptographically secure keys for TLS handshakes and secure boot verification. |
Applications
| Motor Control System | Sensor Hub Gateway |
|---|---|
Use Scenario: Closed-loop control of BLDC motors in HVAC blowers using field-oriented control (FOC). IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation via advanced timers (TIM1/TIM8), and current sensing via 12-bit ADC with hardware oversampling. Use Value: 100 MHz Cortex-M4+FPU processes FOC loops in <1 µs; dual CAN interfaces enable communication with master controller and actuator nodes. | Use Scenario: Aggregation and preprocessing of IMU, environmental, and biometric sensor data in smart wearables. IC Role / Device Role / Timing Role: Sensor fusion host with DFSDM for PDM microphones, I²C/SPI for accelerometers/pressure sensors, and low-power Stop mode between sampling intervals. Use Value: BAM reduces average current to <25 µA during batch sensor reads; 256 KB SRAM buffers fused data before BLE transmission. |
| Industrial PLC Module | Wi-Fi-Enabled Edge Node |
Use Scenario: Compact programmable logic controller handling discrete I/O, analog inputs, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Main controller executing ladder logic, managing 16-channel ADC for 4–20 mA loop monitoring, and driving isolated RS-485 via USART with automatic direction control. Use Value: 512 KB flash stores multiple Modbus slave configurations; 114 5V-tolerant I/Os interface directly with industrial-level digital inputs. | Use Scenario: Local decision-making node in smart home systems, connecting Zigbee/Z-Wave sensors to Wi-Fi cloud uplink. IC Role / Device Role / Timing Role: Protocol bridge with SDIO-connected Wi-Fi module, USB OTG for firmware updates, and RTC-based scheduled wakeups for periodic telemetry. Use Value: USB OTG FS allows field technicians to reprogram via standard USB cable; Standby current of 2.4 µA enables >1-year battery life in maintenance-free deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F411CEU6 | Same UFQFPN48 package, but 256 KB flash, no DFSDM, no Quad-SPI, no USB OTG PHY - only USB device mode. | Lacks audio preprocessing capability and external memory expansion; suitable for cost-sensitive motor control without sensor fusion. | Select when USB host/OTG and high-resolution audio capture are not required, and flash budget is ≤256 KB. |
| STM32F446RET6 | LQFP64 package, 512 KB flash, USB OTG HS/FS, no DFSDM, but includes SPDIF-RX and additional timers. | Better suited for audio transport (SPDIF) and higher I/O count; lacks PDM microphone support and BAM power optimization. | Choose for applications needing SPDIF input or more general-purpose timers, accepting larger footprint and higher active power. |
Compared with STM32F411CEU6, the STM32F412CEU6 adds DFSDM, Quad-SPI, and USB OTG FS PHY - critical for audio edge nodes and expandable storage. Versus STM32F446RET6, it trades SPDIF for PDM audio and superior low-power batch acquisition, fitting compact battery-powered gateways.
Availability
STM32F412CEU6 is available at Aetrix Electronics and suitable for industrial PLCs, wearable sensor hubs, and Wi-Fi edge nodes requiring stable component supply across multi-year production cycles.
Supply support for STM32F412CEU6 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-grade components.
The STM32F412x series targets resource-constrained, battery-aware edge devices - emphasizing low-power peripherals (BAM, ultra-low Standby), audio-ready interfaces (DFSDM, PDM), and compact packaging (UFQFPN48, WLCSP64).
FAQ
What is the maximum operating frequency and core type of the STM32F412CEU6?
The STM32F412CEU6 features an Arm Cortex-M4 core with FPU, rated for up to 100 MHz operation. This frequency is achievable with zero wait states thanks to the ART Accelerator™, which caches flash accesses. The core supports DSP instructions and implements a Memory Protection Unit (MPU) for secure task isolation in RTOS environments.
Does the STM32F412CEU6 support USB host functionality, and what PHY is integrated?
Yes, the STM32F412CEU6 integrates a full-speed USB 2.0 OTG controller with an on-chip PHY, supporting device, host, and OTG roles. It does not include a high-speed PHY. The integrated PHY eliminates the need for external transceivers, reducing BOM cost and PCB area - confirmed in DS11139 Section 3.32 and Table 2.
How many analog-to-digital converter (ADC) channels and what resolution does the STM32F412CEU6 provide?
The device includes one 12-bit ADC with up to 16 external input channels and a maximum sampling rate of 2.4 MSPS. It supports hardware oversampling to achieve effective resolutions up to 16 bits. The ADC operates across the full 1.7–3.6 V supply range and includes built-in calibration and injected/conversion modes - detailed in DS11139 Sections 3.35 and 6.3.20.
What low-power modes are available, and what is the lowest standby current?
The STM32F412CEU6 offers Run, Sleep, Stop (with Flash in Stop or Deep Power Down), and Standby modes. In Standby mode with RTC disabled and VDD = 1.7 V, typical current is 2.4 µA at 25 °C (max 12 µA at 85 °C). With VBAT-supplied RTC active, VBAT current is 1 µA at 25 °C - specified in DS11139 Section 3.21 and Table 33.
STM32F412CEU6 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:
- 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 10x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F412CEU6 FAQ
1.How can I place an order for STM32F412CEU6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F412CEU6 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 STM32F412CEU6 reliable?
The price and inventory of STM32F412CEU6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F412CEU6 is usually 5 days.
3.What payment methods are accepted for STM32F412CEU6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F412CEU6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F412CEU6?
STM32F412CEU6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F412CEU6 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 STM32F412CEU6?
For technical support, including STM32F412CEU6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F412CEU6 requirements.
6.How does Aetrix verify that STM32F412CEU6 is sourced from the original manufacturer or authorized distributors?
All STM32F412CEU6 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 STM32F412CEU6 meets industry standards.
7.What is the process for return or replacement of STM32F412CEU6?
All STM32F412CEU6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F412CEU6, 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 STM32F412CEU6 part is unused and in its original packaging.
Return procedure for STM32F412CEU6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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