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STMicroelectronics STM32F746NGH6TR
- Part No.:
- STM32F746NGH6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 216-TFBGA
- Datasheet:
-
STM32F746NGH6TR.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 216TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,972
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Product details
Overview
STM32F746NGH6TR 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 USB OTG (FS/HS), 10/100 Ethernet MAC, LCD-TFT controller up to XGA, and Chrom-ART Accelerator™ for graphics acceleration - deployed in industrial HMI and embedded vision gateways.
For engineers reviewing the STM32F746NGH6TR datasheet, STM32F746NGH6TR pinout, STM32F746NGH6TR application, or STM32F746NGH6TR equivalent, key selection criteria include TCM RAM allocation for real-time control loops, dual-CAN + Ethernet coexistence, hardware-accelerated LCD rendering, and 216 MHz deterministic execution with ART Accelerator™ and L1 cache.
Technical Context
The device implements a tightly coupled memory architecture with separate 4 KB instruction and 4 KB data L1 caches plus TCM RAM, enabling zero-wait-state execution from Flash and deterministic latency-critical code paths. Its AXI-AHB bus matrix supports concurrent high-bandwidth peripherals including Ethernet MAC, SDMMC, and DCMI without arbitration bottlenecks.
Real-time capability is reinforced by dual watchdogs (independent + window), SysTick timer, and low-power timer (LPTIM1) operable in Stop mode. The 3×12-bit ADCs support triple interleaved sampling at 7.2 MSPS, while dual 12-bit DACs enable synchronized analog output generation for closed-loop control.
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 Flash + 320 KB SRAM (64 KB data TCM + 16 KB instruction TCM + 4 KB backup) |
| Connectivity | Dual USB OTG (FS/HS), 10/100 Ethernet MAC with IEEE 1588v2 hardware support |
| Graphics | LCD-TFT controller up to XGA resolution + Chrom-ART Accelerator™ (DMA2D) for hardware-accelerated 2D graphics |
| Analog | 3×12-bit ADCs (2.4 MSPS each, 7.2 MSPS interleaved), 2×12-bit DACs |
| Timers | Up to 18 timers: 13×16-bit + 2×32-bit, all running at 216 MHz; includes LPTIM1 for Stop-mode timing |
| Camera & Display | 8–14-bit parallel DCMI interface (54 MB/s), LCD parallel interface (8080/6800 modes) |
Pinout & Package
STM32F746NGH6TR uses a TFBGA100 (8 × 8 mm, 0.8 mm pitch) package with 100 I/O balls. Pin functions are defined per STM32F746xx datasheet Table 10 (DS10916 Rev 5, p.55), supporting full peripheral multiplexing including dual CAN, Ethernet RMII/MII, USB ULPI, and DCMI.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD/VSS | Core & I/O power supply / ground | Separate 1.7–3.6 V domains for core (VCAP1/VCAP2 decoupling required) and I/O; 5 V-tolerant on 166 pins |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O with alternate functions | 168 total I/Os; up to 164 support 108 MHz toggle rate; all support external interrupt |
| PH13–PH15, PI0–PI10 | DCMI data/control signals | 8–14-bit parallel camera interface with HSYNC/VSYNC/PCLK; supports CMOS sensor streaming up to 54 MB/s |
| PE0–PE15, PF0–PF15, PG0–PG15 | LCD-TFT interface (8080/6800) | Direct connection to RGB panels or 8080-style displays; driven by LTDC controller with alpha blending and layer composition |
| PA12/PA11, PB14/PB15 | USB HS/FS D+/D− | Dedicated high-speed PHY (ULPI-capable) and full-speed PHY; supports OTG host/device/OTG roles with dedicated DMA |
Key Features
| Feature | Design Value |
|---|---|
| ART Accelerator™ + L1 cache | Enables zero-wait-state execution from Flash and external memories, eliminating instruction fetch stalls in real-time control |
| Chrom-ART Accelerator™ (DMA2D) | Offloads CPU for 2D graphics operations (copy, fill, blend, format conversion) - critical for smooth GUI rendering in resource-constrained HMIs |
| Dual USB OTG with dedicated DMA | Simultaneous high-speed device/host operation without CPU intervention; supports mass storage, CDC, and custom class firmware |
| IEEE 1588v2 Ethernet MAC | Hardware timestamping and PTP event message handling for sub-microsecond time synchronization in industrial automation networks |
| Triple-interleaved ADC | 7.2 MSPS aggregate sampling across three 12-bit ADCs enables high-fidelity motor current sensing or multi-channel sensor fusion |
Applications
| Industrial HMI Gateway | Embedded Vision Edge Node |
|---|---|
Use Scenario: Standalone panel PC controlling PLCs, drives, and sensors via CAN/Ethernet while rendering real-time process visualization on TFT-LCD. IC Role / Device Role / Timing Role: Central application processor managing UI rendering (via LTDC + DMA2D), fieldbus bridging (dual CAN + Ethernet), and deterministic control loop execution (TCM RAM + Cortex-M7). Use Value: Eliminates external graphics controller and FPGA bridge logic; single-chip integration reduces BOM cost and board area by >35% vs. dual-processor solutions. | Use Scenario: Compact machine vision module capturing VGA video from CMOS sensor, performing edge-based blob detection, and transmitting metadata over Ethernet. IC Role / Device Role / Timing Role: Image acquisition (DCMI @ 54 MB/s), real-time processing (Cortex-M7 + FPU), and network transport (Ethernet MAC + IEEE 1588 sync). Use Value: Hardware-accelerated DMA2D offloads pixel format conversion; triple-interleaved ADC supports synchronized trigger input for strobed lighting control. |
| Medical Diagnostic Interface | Smart Energy Gateway |
Use Scenario: Portable ultrasound front-end interfacing with analog beamformer ASICs, digitizing RF echo data, and generating preview images on integrated display. IC Role / Device Role / Timing Role: High-throughput data acquisition (DCMI + dual 12-bit DAC for waveform synthesis), low-latency image processing (L1 cache + TCM), and secure local UI (backup SRAM + RTC). Use Value: 4 KB backup SRAM retains calibration data and patient settings during battery swap; VBAT-powered RTC maintains audit trail timestamps. | Use Scenario: DIN-rail-mounted energy meter aggregating Modbus RTU (RS485), M-Bus, and pulse inputs, then reporting via Ethernet/Wi-Fi to cloud SCADA. IC Role / Device Role / Timing Role: Multi-protocol communication hub (4× UART, 4× I²C, 2× CAN, SDMMC for logging), precision timekeeping (RTC + 32 kHz crystal), and secure firmware updates (AES-256 + RNG). Use Value: Dual CAN interfaces enable redundant fieldbus connectivity; true random number generator supports TLS 1.2 handshake and secure boot key derivation. |
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 DCMI, adds JPEG codec | Better for AI inference + display combo; lacks native parallel camera interface | Select when needing >462 DMIPS or dual-core isolation, but requires redesign for camera path |
| STM32F767ZIT6 | Same Cortex-M7 core, 2 MB Flash, 512 KB SRAM, adds FMC for external SDRAM/NOR, no Ethernet MAC | Superior memory expansion for large GUI buffers; no integrated 10/100 MAC | Choose for memory-intensive HMIs without Ethernet requirement; requires external PHY if networking needed |
Compared with STM32F746NGH6TR, the STM32H743VIT6 delivers higher compute density but removes DCMI - making it unsuitable for direct camera replacement. The STM32F767ZIT6 offers larger memory and FMC flexibility but lacks integrated Ethernet, increasing system complexity for connected applications.
Availability
STM32F746NGH6TR is available at Aetrix Electronics and suitable for industrial HMI, embedded vision edge nodes, medical diagnostic interfaces, and smart energy gateways requiring stable component supply across long-lifecycle deployments.
Supply support for STM32F746NGH6TR 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.
The STM32F7 series targets high-end embedded applications demanding real-time performance, rich connectivity, and advanced graphics - optimized for industrial automation, medical devices, and human-machine interfaces.
FAQ
What is the maximum operating frequency and how is it achieved?
The STM32F746NGH6TR achieves 216 MHz via its ARM Cortex-M7 core with adaptive real-time accelerator (ART Accelerator™) and dual 4 KB L1 caches. This configuration eliminates wait states for Flash access and enables deterministic execution of both instruction and data streams, validated under full temperature and voltage range per DS10916 Rev 5 Section 6.3.1.
Does this MCU support hardware-accelerated graphics rendering?
Yes - it integrates the Chrom-ART Accelerator™ (DMA2D), a dedicated 2D graphics engine that performs memory copy, pixel format conversion, alpha blending, and layer composition without CPU involvement. This is confirmed in Section 3.11 of DS10916 Rev 5 and enables smooth GUI rendering on TFT-LCD panels up to XGA resolution.
Can the Ethernet MAC operate without an external PHY?
No - the STM32F746NGH6TR includes only a Media Access Controller (MAC); it requires an external PHY chip for physical layer signaling. The MAC supports both MII and RMII interfaces and includes IEEE 1588v2 hardware timestamping, as specified in Section 3.31 of the datasheet.
What low-power modes are supported and what peripherals remain active?
It supports Sleep, Stop, and Standby modes. In Stop mode, the LPTIM1 timer, RTC, backup SRAM, and certain I/Os remain active; in Standby, only RTC and 4 KB backup SRAM retain state. Power consumption drops to 1.7 µA in Standby with RTC enabled (DS10916 Rev 5, Table 33).
STM32F746NGH6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 216-TFBGA
- Series:
- STM32F7
- Packaging:
- Tape & Reel (TR)
- 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:
STM32F746NGH6TR FAQ
1.How can I place an order for STM32F746NGH6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F746NGH6TR 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 STM32F746NGH6TR reliable?
The price and inventory of STM32F746NGH6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F746NGH6TR is usually 5 days.
3.What payment methods are accepted for STM32F746NGH6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F746NGH6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F746NGH6TR?
STM32F746NGH6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F746NGH6TR 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 STM32F746NGH6TR?
For technical support, including STM32F746NGH6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F746NGH6TR requirements.
6.How does Aetrix verify that STM32F746NGH6TR is sourced from the original manufacturer or authorized distributors?
All STM32F746NGH6TR 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 STM32F746NGH6TR meets industry standards.
7.What is the process for return or replacement of STM32F746NGH6TR?
All STM32F746NGH6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F746NGH6TR, 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 STM32F746NGH6TR part is unused and in its original packaging.
Return procedure for STM32F746NGH6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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