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STMicroelectronics STM32F746IGT6G
- Part No.:
- STM32F746IGT6G
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
STM32F746IGT6G.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,986
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Product details
Overview
STM32F746IGT6G from STMicroelectronics is a high-performance ARM Cortex-M7 32-bit microcontroller with FPU, delivering 462 DMIPS at 216 MHz, featuring 1 MB Flash, 320+16+4 KB SRAM, dual USB OTG (FS/HS), 10/100 Ethernet MAC, LCD-TFT controller up to XGA, and Chrom-ART Accelerator™. It serves as the main application processor in industrial HMI, medical imaging front-ends, and networked edge gateways requiring real-time graphics and connectivity.
For engineers reviewing the STM32F746IGT6G datasheet, STM32F746IGT6G pinout, STM32F746IGT6G application, or STM32F746IGT6G equivalent, key selection criteria include LQFP176 package compatibility, 216 MHz Cortex-M7 execution with ART Accelerator™ and L1 cache, triple 12-bit ADCs (7.2 MSPS interleaved), dual CAN 2.0B, and IEEE 1588v2–enabled Ethernet MAC.
Technical Context
The device implements an adaptive real-time accelerator (ART Accelerator™) with 4 KB instruction and 4 KB data caches, enabling zero-wait-state execution from Flash and external memories. Its AXI-AHB bus matrix supports concurrent high-bandwidth access across CPU, DMA2D, Ethernet, and FMC peripherals.
It integrates dual-mode Quad-SPI, parallel DCMI (54 MB/s), and two SAIs for audio-class precision-each supported by dedicated PLLs (PLLI2S, PLLSAI). The LCD-TFT controller includes hardware layer blending and alpha blending via DMA2D, while the Ethernet MAC provides MII/RMII interfaces and hardware timestamping per IEEE 1588v2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M7 with FPU, 216 MHz max frequency, 462 DMIPS performance |
| Memory | 1 MB embedded Flash + 320 KB SRAM (64 KB DTCM + 16 KB ITCM + 4 KB backup) |
| Analog Peripherals | 3×12-bit ADCs (2.4 MSPS each, 7.2 MSPS triple interleaved), 2×12-bit DACs |
| Connectivity | 2×CAN 2.0B, 4×USART/UART, 6×SPI (50 Mbit/s), 2×SAI, SPDIFRX, HDMI-CEC |
| High-Speed Interfaces | USB 2.0 HS/FS OTG with dedicated DMA, 10/100 Ethernet MAC with IEEE 1588v2 hardware support |
| Graphics & Imaging | LCD-TFT controller up to XGA (1024×768), Chrom-ART Accelerator™ (DMA2D) for 2D graphics acceleration |
| Package | LQFP176 (24×24 mm), 176-pin quad flat package with 0.5 mm pitch |
Pinout & Package
LQFP176 (24 × 24 mm, 0.5 mm pitch) with exposed thermal pad; 176 leads arranged in four sides, supporting full I/O remapping, 5 V-tolerant capability on 166 pins, and dedicated debug (SWD/JTAG) and trace (ETM) signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Core and I/O domain supplies (1.7–3.6 V); multiple pairs ensure low-noise operation and decoupling |
| VCAP1/VCAP2 | Internal regulator bypass | Connect 2.2 µF ceramic capacitors to stabilize 1.2 V core voltage; mandatory for reliable 216 MHz operation |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | 168 total GPIOs; up to 164 support 108 MHz toggle, 166 are 5 V-tolerant for mixed-voltage system interfacing |
| PH13–PH15, PI0–PI12 | LCD-TFT interface | Dedicated 24-bit RGB + HSYNC/VSYNC/DE signals for direct XGA panel driving without external logic |
| PD0–PD15 | FMC address/data bus | Supports NOR/NAND/PSRAM/SDRAM up to 32-bit data width; enables external memory expansion for GUI frame buffers |
| PA11/PA12, PB14/PB15 | USB OTG FS/HS | Separate PHY interfaces: PA11/PA12 for full-speed, PB14/PB15 for high-speed ULPI; both support device/host/OTG roles |
Key Features
| Feature | Design Value |
|---|---|
| ART Accelerator™ + L1 cache | Enables deterministic 0-wait-state execution from Flash at 216 MHz, eliminating cache-miss jitter in real-time control loops |
| Chrom-ART Accelerator™ (DMA2D) | Hardware-accelerated 2D graphics operations (copy, fill, blend) offload CPU, reducing GUI rendering latency by >70% vs software-only |
| Dual USB OTG with dedicated DMA | Simultaneous high-speed (480 Mbps) and full-speed (12 Mbps) host/device operation without CPU intervention for firmware updates or peripheral bridging |
| IEEE 1588v2 Ethernet MAC | Hardware timestamping and PTP event message handling enable sub-microsecond time synchronization for industrial motion control networks |
| Triple interleaved ADC mode | 7.2 MSPS aggregate sampling across three 12-bit ADCs allows synchronized multi-channel acquisition for motor phase current sensing |
Applications
| Industrial HMI Panel | Medical Imaging Front-End |
|---|---|
Use Scenario: Touch-enabled operator interface for PLC-controlled machinery with animated vector graphics and real-time alarm display. IC Role / Device Role / Timing Role: Primary application MCU managing TFT LCD rendering, touch controller interface, Ethernet-based SCADA communication, and local safety logic. Use Value: Chrom-ART Accelerator™ renders 1024×768 UI frames in <16 ms; dual CAN and Ethernet enable redundant fieldbus connectivity per IEC 61131-3. | Use Scenario: Portable ultrasound device front-end acquiring and pre-processing RF echo data before transmission to cloud analytics. IC Role / Device Role / Timing Role: Real-time signal processor interfacing with ADCs, FPGA-based beamformer, and Wi-Fi/Ethernet for DICOM export. Use Value: Triple interleaved ADCs sample 3-channel analog front-end at 7.2 MSPS; DMA2D accelerates B-mode image scaling/compression prior to network upload. |
| Smart Energy Gateway | Networked Edge AI Node |
Use Scenario: DIN-rail mounted gateway aggregating Modbus RTU, CAN bus, and pulse meter inputs for AMI infrastructure. IC Role / Device Role / Timing Role: Protocol translation hub with deterministic Ethernet-to-fieldbus bridging and secure OTA update capability. Use Value: IEEE 1588v2 hardware timestamping aligns meter readings across distributed nodes; 1 MB Flash stores dual firmware images for fail-safe updates. | Use Scenario: Edge inference node performing vision-based anomaly detection on factory floor video streams using lightweight CNN models. IC Role / Device Role / Timing Role: Vision preprocessing engine capturing 720p video via DCMI, running quantized neural net layers in TCM RAM, and forwarding alerts over Ethernet. Use Value: Parallel camera interface sustains 54 MB/s throughput for 30 fps 720p; 216 MHz Cortex-M7 executes INT8 inference kernels with <50 µs latency per frame. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-performance Cortex-M7 microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F767IGT6 | Same package and pinout; adds double-precision FPU, higher Flash endurance (10k cycles), and enhanced security (AES-256, PKA) | Better suited for cryptographic boot, secure firmware updates, and floating-point-heavy DSP workloads | Select when AES-256 encryption, public-key acceleration, or extended Flash write endurance is required |
| STM32H743VIT6 | Higher clock (480 MHz), dual-core (Cortex-M7 + M4), 2 MB Flash, no LCD-TFT controller, different pinout (LQFP100) | Targeted at ultra-low-latency control + AI co-processing; lacks integrated display driver | Choose for asymmetric multiprocessing or when display interface is handled externally |
Compared with STM32F746IGT6G, STM32F767IGT6 offers stronger security and reliability for certified industrial firmware, while STM32H743VIT6 trades integrated graphics for raw compute density and dual-core determinism-neither is pin-compatible, requiring PCB redesign.
Availability
STM32F746IGT6G is available at Aetrix Electronics and suitable for industrial HMI, medical imaging front-ends, smart energy gateways, and networked edge AI nodes requiring stable component supply across long-lifecycle deployments.
Supply support for STM32F746IGT6G 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, designing and manufacturing microcontrollers, power management ICs, sensors, and automotive-grade components.
The STM32F7 series targets high-end embedded applications demanding real-time performance, rich connectivity, and advanced graphics-designed specifically for industrial automation, medical devices, and IoT edge nodes where Cortex-M7 capabilities exceed Cortex-M4 requirements.
FAQ
What is the maximum operating frequency and how is it achieved?
The STM32F746IGT6G achieves 216 MHz via its Arm Cortex-M7 core with ART Accelerator™ and 4 KB instruction/data caches. This configuration eliminates wait states during Flash execution, verified under 1.7–3.6 V supply and ambient temperatures up to 85°C. External crystal oscillator range is 4–26 MHz, internally multiplied using PLL.
Does this MCU support external SDRAM, and what interface is used?
Yes, it supports external SDRAM up to 32-bit data width using the Flexible Memory Controller (FMC). The FMC provides dedicated control signals (RAS/CAS/WE/CLK/BA) and supports LPDDR/SDRAM/LPSDR SDRAM protocols. Pin assignments are fixed per LQFP176 ballout (e.g., PD0–PD15 for data, PE0–PE12 for address/control).
What are the key differences between STM32F746IGT6G and STM32F767IGT6?
Both share identical LQFP176 packaging and pinout, but STM32F767IGT6 adds double-precision FPU, 10k-cycle Flash endurance, and hardware crypto engines (AES-256, PKA, HASH). It also includes additional tamper-detection features and enhanced debug authentication-making it preferred for secure boot and certified industrial firmware.
Can the LCD-TFT controller drive a 1024×768 (XGA) display without external memory?
Yes-the integrated LCD-TFT controller supports XGA resolution directly, and the 320 KB SRAM includes 64 KB of data TCM RAM optimized for frame buffer storage. With Chrom-ART Accelerator™ (DMA2D), full-screen alpha-blended overlays can be rendered in hardware without external SDRAM, though external memory is recommended for multi-layer GUIs with video playback.
STM32F746IGT6G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 176-LQFP
- Series:
- STM32F7
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M7
- Core Size:
- 32-Bit Single-Core
- Speed:
- 216MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, I2C, IrDA, LINbus, SAI, SD, SPDIF-Rx, SPI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, LCD, POR, PWM, WDT
- Number of I/O:
- 140
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 320K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 3.6V
- Data Converters:
- A/D 24x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F746IGT6G FAQ
1.How can I place an order for STM32F746IGT6G through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F746IGT6G 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 STM32F746IGT6G reliable?
The price and inventory of STM32F746IGT6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F746IGT6G is usually 5 days.
3.What payment methods are accepted for STM32F746IGT6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F746IGT6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F746IGT6G?
STM32F746IGT6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F746IGT6G 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 STM32F746IGT6G?
For technical support, including STM32F746IGT6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F746IGT6G requirements.
6.How does Aetrix verify that STM32F746IGT6G is sourced from the original manufacturer or authorized distributors?
All STM32F746IGT6G 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 STM32F746IGT6G meets industry standards.
7.What is the process for return or replacement of STM32F746IGT6G?
All STM32F746IGT6G units undergo pre-shipment inspection (PSI). If there is an issue with STM32F746IGT6G, 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 STM32F746IGT6G part is unused and in its original packaging.
Return procedure for STM32F746IGT6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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