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STMicroelectronics STM32F412REY6TR
- Part No.:
- STM32F412REY6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-UFBGA, WLCSP
- Datasheet:
-
STM32F412REY6TR.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:27,032
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Product details
Overview
STM32F412REY6TR 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 ART Accelerator™ for zero-wait-state flash execution - deployed in industrial PLCs, medical sensor hubs, and wearable devices requiring deterministic real-time response.
For engineers reviewing the STM32F412REY6TR datasheet, STM32F412REY6TR pinout, STM32F412REY6TR application, or STM32F412REY6TR equivalent, key selection criteria include its 100 MHz Cortex-M4+FPU core, dual CAN support, low-power Stop mode (18 µA), 12-bit 2.4 MSPS ADC, and UFQFPN48 package compatibility with space-constrained embedded designs.
Technical Context
The device implements an Adaptive Real-Time Accelerator (ART Accelerator™) that eliminates flash wait states at 100 MHz, enabling deterministic code execution critical for motor control loops and audio processing. Its dual CAN 2.0B controllers support robust fieldbus communication in industrial automation and automotive subsystems.
Built-in Batch Acquisition Mode (BAM) reduces power during peripheral data capture, while the DFSDM with PDM interfaces enables direct stereo microphone input - essential for voice-enabled wearables and IoT edge nodes requiring local signal preprocessing without external DSP.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 100 MHz max - enables floating-point math for motor control algorithms and real-time filtering |
| Flash / RAM | 1 MB Flash / 256 KB SRAM - supports complex firmware with bootloader, OTA update partitioning, and large audio buffers |
| ADC | 1×12-bit, 2.4 MSPS, 16-channel - captures fast analog transients in motor current sensing or biomedical signal acquisition |
| Communication | 2×CAN 2.0B, 4×USART, 5×SPI/I2S, USB OTG FS - enables multi-protocol connectivity in gateway and HMI applications |
| Power Modes | Stop mode down to 18 µA (deep power-down), Standby at 2.4 µA - extends battery life in portable medical and sensor-hub devices |
| Clock Sources | 4–26 MHz HSE, 32 kHz LSE, 16 MHz HSI - provides precise RTC timing and flexible system clock derivation for audio PLL (PLLI2S) |
| Package | UFQFPN48 (7 × 7 mm, 0.5 mm pitch) - surface-mount compatible with automated assembly and thermal management in compact PCB layouts |
Pinout & Package
STM32F412REY6TR is housed in a 48-pin Ultra-Fine Pitch Quad Flat No-lead (UFQFPN48) package with exposed thermal pad, compliant with ECOPACK2 environmental standards. Pin layout supports full GPIO remapping, dual CAN bus routing, and dedicated I2S/SDIO/USB signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD/VSS | Power supply / Ground | Dual VDD pins (VDDA/VDD) enable analog/digital domain isolation; VCAP_1/VCAP_2 decoupling required for regulator stability |
| PA13/PA14 | SWDIO/SWCLK | Serial Wire Debug interface - minimal 2-pin debug access without JTAG overhead |
| PA11/PA12 | USB_DM/USB_DP | Full-speed USB 2.0 physical layer - supports device/host/OTG operation with integrated PHY |
| PB8/PB9 | CAN1_RX/CAN1_TX | Dedicated differential CAN transceiver interface - meets ISO 11898-2 electrical requirements |
| PC10/PC11 | CAN2_RX/CAN2_TX | Second independent CAN channel - enables redundant bus or multi-network topology in industrial gateways |
| PA0 | ADC1_IN0 | 12-bit ADC input channel - routed to internal temperature sensor and external analog sources |
Key Features
| Feature | Design Value |
|---|---|
| ART Accelerator™ | Enables 0-wait-state execution from 1 MB Flash at 100 MHz - eliminates cache misses in time-critical ISR handling |
| Batch Acquisition Mode (BAM) | Reduces CPU wakeups during sensor data streaming - cuts average power by >40% vs. polling-based acquisition |
| Dual CAN 2.0B controllers | Independent message RAM and filters - supports concurrent CAN FD-ready networks without software arbitration |
| DFSDM + PDM interfaces | Hardware sigma-delta decimation and stereo PDM input - offloads 90% of microphone preprocessing from CPU |
| Flexible static memory controller (FSMC) | 16-bit parallel bus for NOR/PSRAM - enables external display frame buffer or FPGA co-processor interfacing |
Applications
| Industrial PLC | Medical Sensor Hub |
|---|---|
Use Scenario: Compact programmable logic controller managing I/O expansion, motion control, and fieldbus communication in factory automation cabinets. IC Role / Device Role / Timing Role: Main application processor executing ladder logic, driving PWM outputs, and synchronizing CANopen and Modbus RTU protocols. Use Value: Dual CAN + 17 comm interfaces eliminate external protocol bridges; 100 MHz core ensures sub-millisecond scan cycle times. | Use Scenario: Wearable ECG/SpO₂ monitor aggregating biosensor data, performing on-device feature extraction, and transmitting via BLE+USB. IC Role / Device Role / Timing Role: Central sensor fusion MCU with integrated ADC, DFSDM, and USB OTG for host-side firmware updates and raw data dump. Use Value: 12-bit 2.4 MSPS ADC captures high-fidelity biopotentials; BAM mode extends coin-cell battery life beyond 7 days. |
| Home Audio Appliance | Connected HVAC Controller |
Use Scenario: Smart speaker node with voice pickup, local keyword spotting, and audio playback via I2S-connected DAC. IC Role / Device Role / Timing Role: Audio subsystem controller managing PDM microphone array, PLLI2S clock generation, and USB audio class compliance. Use Value: Dual full-duplex I2S interfaces support simultaneous record/playback; DFSDM handles beamforming pre-processing. | Use Scenario: Wall-mounted HVAC controller integrating temperature/humidity sensors, relay drivers, Zigbee/Wi-Fi modules, and LCD display. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition, PID loop execution, UI rendering, and wireless coexistence scheduling. Use Value: 114 GPIOs with interrupt capability simplify multi-sensor wiring; RTC with subsecond accuracy enables precise scheduling of fan cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F411REY6TR | 512 KB Flash, no dual CAN, no DFSDM, same UFQFPN48 package | Lacks stereo PDM support and second CAN - unsuitable for voice-enabled or dual-bus industrial systems | Select when cost-sensitive designs require only single-CAN and reduced memory footprint |
| STM32F446RET6 | Same 1 MB Flash, adds SAI audio interface and enhanced crypto, but in LQFP64 package | Larger footprint and no UFQFPN48 option - incompatible with space-constrained layouts requiring 7×7 mm form factor | Choose for audio-centric designs needing SAI and hardware AES, accepting larger board area |
Compared with STM32F411REY6TR and STM32F446RET6, the STM32F412REY6TR uniquely balances ultra-compact UFQFPN48 packaging, dual CAN, and DFSDM-based microphone preprocessing - making it optimal for battery-powered industrial edge nodes where size, bus redundancy, and voice sensing converge.
Availability
STM32F412REY6TR is available at Aetrix Electronics and suitable for industrial PLCs, medical sensor hubs, and connected HVAC controllers requiring stable component supply across multi-year production cycles.
Supply support for STM32F412REY6TR 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, Switzerland, specializing in microcontrollers, power management, and MEMS sensors for industrial, automotive, and consumer markets.
The STM32F412 series targets resource-constrained, power-aware embedded applications demanding rich connectivity, real-time performance, and advanced analog integration - particularly in portable medical, industrial edge, and voice-interfaced IoT devices.
FAQ
What is the maximum operating frequency and associated performance metric?
The STM32F412REY6TR operates at up to 100 MHz with an ART Accelerator™ enabling zero-wait-state execution from Flash. Its performance is quantified at 125 DMIPS (Dhrystone 2.1), equivalent to 1.25 DMIPS/MHz. This rating reflects sustained integer throughput under real-world memory access patterns, validated per ARM standard methodology.
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 OTG modes via a single PHY. Hardware-level session request protocol (SRP) and host negotiation protocol (HNP) are implemented, allowing dynamic role switching without external components. The PA11/PA12 pins provide the differential USB DP/DM interface directly.
How many CAN interfaces does the STM32F412REY6TR provide, and what protocol versions are supported?
The STM32F412REY6TR integrates two independent bxCAN 2.0B controllers supporting both standard (11-bit) and extended (29-bit) identifier frames. Each has dedicated message RAM, filter banks, and automatic retransmission logic. It does not support CAN FD; however, its dual-CAN architecture enables fault-tolerant networking or multi-bus bridging in industrial gateways.
What low-power modes are available, and what is the lowest achievable current draw?
Five low-power modes are supported: Sleep, Stop (with Flash in Stop or Deep Power Down), Standby, and VBAT. 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 and 1.7 V (no RTC), verified per DS11139 Rev 9 Section 6.3.21.
STM32F412REY6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-UFBGA, WLCSP
- Series:
- STM32F4
- Packaging:
- Tape & Reel (TR)
- 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:
STM32F412REY6TR FAQ
1.How can I place an order for STM32F412REY6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F412REY6TR 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 STM32F412REY6TR reliable?
The price and inventory of STM32F412REY6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F412REY6TR is usually 5 days.
3.What payment methods are accepted for STM32F412REY6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F412REY6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F412REY6TR?
STM32F412REY6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F412REY6TR 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 STM32F412REY6TR?
For technical support, including STM32F412REY6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F412REY6TR requirements.
6.How does Aetrix verify that STM32F412REY6TR is sourced from the original manufacturer or authorized distributors?
All STM32F412REY6TR 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 STM32F412REY6TR meets industry standards.
7.What is the process for return or replacement of STM32F412REY6TR?
All STM32F412REY6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F412REY6TR, 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 STM32F412REY6TR part is unused and in its original packaging.
Return procedure for STM32F412REY6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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