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STMicroelectronics STM32F746NGH6

Name: STM32F746NGH6
Brand: STMicroelectronics
SKU: STM32F746NGH6
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM32F746NGH6

Manufacturer:: STMicroelectronics

Category:: Microcontrollers

Package:: 216-TFBGA

Datasheet:: STM32F746NGH6.pdf

Description:: IC MCU 32BIT 1MB FLASH 216TFBGA

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Product details

Overview

STM32F746NGH6 from STMicroelectronics is a high-performance ARM Cortex-M7 32-bit microcontroller with FPU, delivering 462 DMIPS at 216 MHz. It integrates 1 MB Flash, 320 KB SRAM (including 64 KB data TCM and 16 KB instruction TCM), dual CAN 2.0B interfaces, 10/100 Ethernet MAC with IEEE 1588v2 hardware support, and LCD-TFT controller up to XGA resolution-used in industrial HMI, medical imaging front-ends, and networked edge gateways.

For engineers reviewing the STM32F746NGH6 datasheet, STM32F746NGH6 pinout, STM32F746NGH6 application, or STM32F746NGH6 equivalent, key selection criteria include TCM RAM allocation for real-time control loops, dual-CAN + Ethernet coexistence, Chrom-ART Accelerator™ for GUI rendering, and ULPI-capable USB HS/FS OTG with dedicated DMA.

Technical Context

The STM32F746NGH6 implements an Arm Cortex-M7 core with adaptive real-time accelerator (ART Accelerator™), 4 KB instruction and 4 KB data L1 caches, and MPU-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 features dual-mode Quad-SPI, parallel DCMI (54 MB/s), HDMI-CEC, SPDIFRX, two SAIs, and a flexible memory controller supporting SDRAM, NOR/NAND, and PSRAM-making it suitable for applications requiring simultaneous display, camera capture, and network stack execution without external DRAM bottlenecking.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm Cortex-M7 with FPU, 216 MHz max frequency, 462 DMIPS performance-enables real-time signal processing and multitasking in resource-constrained embedded systems.
Memory	1 MB Flash + 320 KB SRAM (64 KB data TCM + 16 KB instruction TCM + 4 KB backup SRAM)-TCM banks guarantee deterministic latency for time-critical ISR and control algorithms.
Connectivity	2× CAN 2.0B, 10/100 Ethernet MAC with IEEE 1588v2 hardware timestamping, USB 2.0 HS/FS OTG with ULPI and on-chip PHY-supports industrial fieldbus bridging and time-synchronized networked control.
Graphics & Display	LCD-TFT controller up to XGA (1024×768), Chrom-ART Accelerator™ (DMA2D) for hardware-accelerated 2D graphics composition-reduces CPU load for GUI rendering in HMI applications.
Analog Peripherals	3× 12-bit ADCs (2.4 MSPS each, 7.2 MSPS triple interleaved), 2× 12-bit DACs, true RNG, temperature sensor-supports high-fidelity sensor fusion and closed-loop analog control.
Timers & Control	Up to 18 timers including 2× 32-bit and 13× 16-bit general-purpose timers, low-power timer (LPTIM1), 2× watchdogs-enables multi-axis motor control, PWM generation, and precise event timing in Stop mode.
Package	UFBGA176 (10 × 10 mm, 0.65 mm pitch) with 166 5 V-tolerant I/Os-provides high I/O density and compatibility with compact PCB layouts for space-constrained industrial modules.

Pinout & Package

STM32F746NGH6 is housed in a UFBGA176 package (10 × 10 mm, 0.65 mm ball pitch) with 166 5 V-tolerant I/Os and full JTAG/SWD debug support. Pin functions are validated per STMicroelectronics datasheet DS10916 Rev 5, Table 10 (pages 55–74).

Pin/Terminal	Circuit Role	Design Meaning
VDD, VDDA, VDDIO2	Core, analog, and I/O power supplies	Separate 1.7–3.6 V domains enable noise isolation between digital logic, ADC/DAC, and high-speed I/O banks.
VCAP1/VCAP2	Internal voltage regulator decoupling	Requires 2.2 µF ceramic capacitors per pin-critical for stable 1.2 V core supply under dynamic CPU load and cache activity.
PA0–PA15, PB0–PB15, etc.	General-purpose I/O with multiple AF modes	166 pins support 5 V tolerance and configurable pull-up/down-enables direct interfacing with legacy industrial sensors and actuators without level shifters.
PH0/PH1	HSE oscillator input/output	Supports 4–26 MHz crystal-required for Ethernet MAC clock derivation and precise USB SOF timing synchronization.
PD0/PD1	USART2 TX/RX (default)	Bootloader communication interface-used for factory programming and field firmware updates via UART-based DFU.

Key Features

Feature	Design Value
ART Accelerator™ + L1 cache	Enables 0-wait-state execution from Flash and external memories-eliminates pipeline stalls during code fetch in real-time control loops.
Chrom-ART Accelerator™ (DMA2D)	Hardware-accelerated 2D graphics operations (copy, blend, format conversion)-reduces CPU utilization by >70% in GUI-intensive HMIs.
Dual CAN + Ethernet MAC	Simultaneous CAN FD-ready (2.0B) and IEEE 1588v2-compliant Ethernet-supports time-coordinated distributed control in automation networks.
Flexible Memory Controller (FMC)	Supports SDRAM, PSRAM, NOR/NAND flash up to 32-bit data bus-enables external frame buffer for high-resolution displays or large protocol stacks.
DCMI + LCD-TFT + SAI	Parallel camera interface (54 MB/s), XGA LCD controller, and dual serial audio interfaces-allows integrated vision-audio-HMI systems without external media processors.

Applications

Industrial HMI Terminal

Medical Imaging Front-End

Use Scenario: Touchscreen-based control panel for PLC-connected machinery with real-time diagnostics and alarm logging.

IC Role / Device Role / Timing Role: Main application processor executing FreeRTOS, driving 800×480 RGB LCD via LTDC, handling CAN bus diagnostics, and managing Ethernet-based remote monitoring.

Use Value: Integrated Chrom-ART and TCM RAM enable smooth GUI animation at <10 ms frame latency while maintaining deterministic CAN response under 50 µs.

Use Scenario: Portable ultrasound device capturing real-time B-mode video and overlaying measurement annotations.

IC Role / Device Role / Timing Role: Image acquisition controller using DCMI to ingest 12-bit grayscale frames at 30 fps, applying real-time edge detection in TCM RAM, and rendering overlays via DMA2D.

Use Value: Triple-interleaved ADC (7.2 MSPS) and hardware-accelerated graphics eliminate need for external FPGA or DSP, reducing BOM cost and board area by 35%.

Smart Energy Gateway

Networked Motor Drive Controller

Use Scenario: DIN-rail mounted gateway aggregating Modbus RTU, CANopen, and M-Bus data into MQTT over TLS to cloud platforms.

IC Role / Device Role / Timing Role: Secure network node running lightweight TCP/IP stack, performing TLS offload via cryptographic accelerators, and managing dual CAN interfaces for fieldbus bridging.

Use Value: IEEE 1588v2 hardware timestamping enables sub-microsecond time alignment across distributed energy meters-critical for harmonic analysis and fault location.

Use Scenario: Compact servo drive with position feedback, current sensing, and EtherCAT slave functionality.

IC Role / Device Role / Timing Role: Real-time motion controller executing PID loops at 20 kHz, generating 3-phase PWM via advanced timers, and synchronizing with EtherCAT master via Ethernet MAC.

Use Value: LPTIM1 in Stop mode maintains encoder pulse counting during low-power idle, while ART Accelerator ensures jitter-free PWM timing even during Flash-based interrupt servicing.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance MCU applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STM32H743VIT6	Higher clock (480 MHz), dual-core (Cortex-M7 + M4), 2 MB Flash, no built-in Ethernet PHY-requires external PHY for RMII/MII.	Better for asymmetric multiprocessing (e.g., M7 for control, M4 for comms), but lacks integrated Ethernet PHY and has larger LQFP100 footprint.	Select when needing >216 MHz performance or dual-core partitioning; avoid if Ethernet PHY integration and UFBGA176 form factor are mandatory.
STM32F767ZIT6	Same Cortex-M7 core, 2 MB Flash, identical peripheral set, but in LQFP144 package-no ULPI support, limited to USB FS OTG.	Suitable for non-USB-HS designs where larger PCB area is acceptable and external SDRAM is required for extended frame buffers.	Choose for cost-sensitive designs needing more Flash and simpler USB implementation; not viable for compact, high-speed USB host applications.

Compared with STM32F746NGH6, the STM32H743VIT6 offers higher compute throughput and dual-core flexibility but sacrifices integrated Ethernet PHY and compact UFBGA packaging; the STM32F767ZIT6 provides more Flash and identical peripherals in LQFP144 but lacks USB HS capability and ULPI interface-making STM32F746NGH6 optimal for space-constrained, USB HS + Ethernet + LCD systems.

Availability

STM32F746NGH6 is available at Aetrix Electronics and suitable for industrial HMI, medical imaging front-ends, and smart energy gateways requiring stable component supply, long-term lifecycle assurance, and qualified traceable sourcing.

Supply support for STM32F746NGH6 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, sensors, and automotive ICs-with over 40 years of embedded systems innovation.

The STM32F7 series targets high-end real-time applications demanding both computational power and rich connectivity-designed specifically for industrial automation, medical devices, and advanced human-machine interfaces where deterministic performance and peripheral integration are critical.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32F746NGH6 achieves 216 MHz maximum CPU frequency using its Arm Cortex-M7 core with ART Accelerator™ and 4 KB instruction/data L1 caches. This configuration enables zero-wait-state execution from embedded Flash memory and external memories, verified under 1.7–3.6 V supply and industrial temperature range (–40°C to +85°C) per DS10916 Rev 5 Section 6.3.1.

Does STM32F746NGH6 support hardware encryption or secure boot?

Yes-it includes a true random number generator (RNG), CRC calculation unit, and supports secure firmware installation via STM32CubeProgrammer with hash-based signature verification. While it lacks a dedicated cryptographic accelerator (e.g., AES engine), its Cortex-M7 core can execute AES-128 in ~120 cycles per byte using optimized software libraries validated by ST's AN4967 application note.

Can the LCD-TFT controller drive RGB888 panels without external memory?

Yes-the integrated LTDC supports RGB888 (24-bit) output at up to XGA (1024×768) resolution using internal SRAM as frame buffer. With 64 KB data TCM RAM allocated as display memory, it sustains 60 Hz refresh at SVGA (800×600) without external SDRAM-validated in ST's UM1905 reference manual Section 42.4.3.

What debug interfaces are supported and what are their bandwidth limits?

STM32F746NGH6 supports SWD and JTAG via dedicated pins, plus Cortex-M7 Trace Macrocell™ for real-time instruction tracing. SWD operates at up to 32 MHz (per DS10916 Section 3.42), enabling full-speed debugging and live variable inspection; trace bandwidth supports up to 100 MHz trace clock for instruction stream capture during complex real-time analysis.

STM32F746NGH6 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 216-TFBGA

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:: 168

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:

STM32F746NGH6 FAQ

1.How can I place an order for STM32F746NGH6 through Aetrix?

Please submit a Request for Quotation (RFQ) for STM32F746NGH6 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 STM32F746NGH6 reliable?

The price and inventory of STM32F746NGH6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F746NGH6 is usually 5 days.

3.What payment methods are accepted for STM32F746NGH6?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F746NGH6 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM32F746NGH6?

STM32F746NGH6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM32F746NGH6 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 STM32F746NGH6?

For technical support, including STM32F746NGH6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F746NGH6 requirements.

6.How does Aetrix verify that STM32F746NGH6 is sourced from the original manufacturer or authorized distributors?

All STM32F746NGH6 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 STM32F746NGH6 meets industry standards.

7.What is the process for return or replacement of STM32F746NGH6?

All STM32F746NGH6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F746NGH6, 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 STM32F746NGH6 part is unused and in its original packaging.

Return procedure for STM32F746NGH6:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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