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STMicroelectronics STM32F746ZET6TR
- Part No.:
- STM32F746ZET6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
STM32F746ZET6TR.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,663
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Product details
Overview
STM32F746ZET6TR from STMicroelectronics is a high-performance ARM Cortex-M7 microcontroller with FPU, 216 MHz max clock, 512 KB Flash, 320+16+4 KB RAM, integrated LCD-TFT controller (XGA), dual CAN 2.0B, USB OTG HS/FS, and 10/100 Ethernet MAC - deployed in industrial HMI, medical imaging front-ends, and connected gateway controllers.
For engineers reviewing the STM32F746ZET6TR datasheet, STM32F746ZET6TR pinout, STM32F746ZET6TR application, or STM32F746ZET6TR equivalent, key selection criteria include TCM RAM allocation for real-time firmware, Chrom-ART Accelerator™ support for GUI rendering, IEEE 1588v2 hardware timestamping for synchronized networking, and LQFP144 package compatibility with legacy PCB layouts.
Technical Context
The device implements a dual-bank Arm Cortex-M7 core with 4 KB instruction and 4 KB data L1 cache, ART Accelerator™ enabling zero-wait-state execution from Flash, and MPU for memory protection. It integrates dual-mode Quad-SPI, parallel DCMI (54 MB/s), and HDMI-CEC for consumer electronics control.
Its clock system includes three PLLs (main PLL, audio PLL, SAI PLL), dedicated RTC oscillator with subsecond accuracy, and factory-trimmed 16 MHz RC (±1%). Power management supports Sleep/Stop/Standby modes with VBAT backup for RTC and 4 KB SRAM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M7 with FPU, 216 MHz max frequency, 462 DMIPS performance |
| Memory | 512 KB Flash (dual-bank), 320 KB SRAM + 16 KB ITCM + 4 KB backup SRAM |
| Graphics Engine | LCD-TFT controller up to XGA (1024×768) with Chrom-ART Accelerator™ (DMA2D) |
| Connectivity | USB 2.0 HS/FS OTG, 10/100 Ethernet MAC with IEEE 1588v2 hardware support, 2× CAN 2.0B |
| Analog Peripherals | 3× 12-bit ADCs (2.4 MSPS each, 7.2 MSPS triple interleaved), 2× 12-bit DACs |
| Timers & Control | 18 timers including 2× 32-bit general-purpose, 13× 16-bit, low-power LPTIM1, and 2 watchdogs |
| Package | LQFP144 (20×20 mm), 144-pin quad flat package with 166 5 V-tolerant I/Os |
Pinout & Package
LQFP144 (20 × 20 mm) package with exposed thermal pad; 144 leads, 0.5 mm pitch, RoHS-compliant, rated for industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD/VSS | Core power supply / ground | 1.7–3.6 V main supply; separate analog/digital domains with decoupling via VCAP1/VCAP2 capacitors |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 168 GPIOs; 166 pins 5 V-tolerant, supporting multiple alternate functions (SPI/I2C/USART/ADC) |
| PH13–PH15 | LCD-TFT data bus (D0–D23) | Parallel 24-bit RGB interface supporting XGA resolution with hardware timing control |
| PD0–PD7 | DCMI data bus (D0–D7) | 8-bit parallel camera interface capable of 54 MB/s throughput for real-time image capture |
| PA12/PA11 | USB OTG FS D+/D− | Full-speed USB 2.0 physical layer with on-chip transceiver; no external PHY required |
| PC1/PC4/PC5 | ETH_MDC/ETH_MDIO/ETH_CRS_DV | IEEE 802.3-compliant 10/100 Ethernet MAC interface with MII/RMII support |
Key Features
| Feature | Design Value |
|---|---|
| ART Accelerator™ + L1 cache | Enables zero-wait-state execution from Flash at 216 MHz, eliminating performance penalty of embedded flash latency |
| Chrom-ART Accelerator™ (DMA2D) | Hardware-accelerated 2D graphics operations (copy, fill, blend) offloading CPU for smooth GUI rendering |
| Dual CAN 2.0B controllers | Independent CAN FD-ready peripherals with message filtering, FIFO buffering, and time-triggered communication support |
| IEEE 1588v2 hardware timestamping | Sub-microsecond precision packet timestamping in Ethernet MAC for deterministic industrial networking |
| Flexible memory controller (FMC) | Supports NOR/NAND/PSRAM/SDRAM with 32-bit data bus - enables external display frame buffer or code execution |
Applications
| Industrial HMI Panel | Medical Imaging Front-End |
|---|---|
Use Scenario: Touch-enabled operator interface for PLC-controlled machinery with real-time status visualization. IC Role / Device Role / Timing Role: Main application processor running FreeRTOS, driving 800×480 TFT-LCD via parallel interface and managing CAN bus diagnostics. Use Value: Chrom-ART Accelerator™ reduces GUI update latency by >60% vs software-only rendering; TCM RAM hosts critical interrupt handlers for <1 µs response. | Use Scenario: Portable ultrasound device capturing and preprocessing B-mode image frames from analog front-end. IC Role / Device Role / Timing Role: Image acquisition controller interfacing 8-bit CMOS sensor via DCMI, performing real-time histogram equalization using DSP instructions. Use Value: Triple-interleaved ADC mode delivers 7.2 MSPS sampling for 30 fps 1024×768 imaging; DMA2D accelerates ROI extraction before transmission. |
| Smart Energy Gateway | Automotive Diagnostic Tool |
Use Scenario: DIN-rail mounted gateway aggregating Modbus RTU, CAN, and Ethernet traffic for cloud telemetry. IC Role / Device Role / Timing Role: Dual-networking hub with simultaneous 10/100 Ethernet (IEEE 1588 sync) and dual CAN interfaces handling protocol translation. Use Value: Hardware timestamping ensures ±500 ns time alignment across fieldbus events; FMC supports external NAND for firmware rollback storage. | Use Scenario: Handheld OBD-II scanner supporting UDS, KWP2000, and CAN FD diagnostics for Tier-1 suppliers. IC Role / Device Role / Timing Role: Protocol stack processor with dual CAN controllers, USB OTG host for PC connectivity, and secure boot via 96-bit unique ID. Use Value: 216 MHz Cortex-M7 executes ISO 14229 UDS stack with <5 ms diagnostic request-response latency; OTP memory stores calibration keys. |
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 LCD-TFT controller | Targeted at compute-intensive edge AI inference; lacks integrated display engine | Select when raw processing throughput outweighs display integration needs |
| STM32F767ZIT6 | Same Cortex-M7 core, 2 MB Flash, identical peripheral set, but LQFP144 package with 2 MB Flash instead of 512 KB | Drop-in compatible for designs requiring larger code footprint without layout change | Choose for firmware scalability where Flash headroom is constrained |
Compared with STM32F746ZET6TR, the STM32H743VIT6 offers higher compute density but requires external display controller, while the STM32F767ZIT6 provides direct Flash capacity upgrade within identical pinout and peripheral compatibility - making it ideal for incremental feature expansion.
Availability
STM32F746ZET6TR is available at Aetrix Electronics and suitable for industrial HMI, medical imaging front-ends, and smart energy gateways requiring stable component supply across multi-year production cycles.
Supply support for STM32F746ZET6TR 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 ICs, sensors, and automotive semiconductors since 1987.
The STM32F7 series targets high-end real-time embedded applications demanding both computational performance and rich peripheral integration - especially where graphics, connectivity, and deterministic timing converge.
FAQ
What is the maximum operating frequency and how is it achieved?
The STM32F746ZET6TR achieves 216 MHz maximum CPU frequency using its internal PLL driven by the HSE (4–26 MHz crystal) or HSI (16 MHz RC). The ART Accelerator™ and 4 KB instruction/data L1 cache eliminate Flash wait states, enabling full-speed execution from embedded memory without external SRAM dependency.
Does this MCU support external SDRAM, and what interface is used?
Yes, it supports external SDRAM up to 256 MB via the Flexible Memory Controller (FMC) with 16-bit or 32-bit data bus. The FMC implements standard SDRAM command sequences and refresh control, and is commonly used for LCD frame buffers or application heap extension in HMI designs.
How many independent CAN interfaces does the STM32F746ZET6TR provide?
The device integrates two fully independent bxCAN 2.0B controllers, each with dedicated message RAM, filter banks, and transmit/receive FIFOs. Both support time-triggered communication, loopback self-test, and automatic retransmission - enabling dual-bus diagnostics or redundancy architectures.
Is the LCD-TFT controller capable of driving RGB888 displays?
Yes, the integrated LCD-TFT controller supports 24-bit RGB888 output via its parallel D0–D23 interface (PH13–PH15 + PI0–PI11), delivering up to XGA (1024×768) resolution with programmable pixel clock, HSYNC/VSYNC polarity, and active region timing - all configurable without CPU intervention.
STM32F746ZET6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 144-LQFP
- 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, POR, PWM, WDT
- Number of I/O:
- 114
- Program Memory Size:
- 512KB (512K 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:
STM32F746ZET6TR FAQ
1.How can I place an order for STM32F746ZET6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F746ZET6TR 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 STM32F746ZET6TR reliable?
The price and inventory of STM32F746ZET6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F746ZET6TR is usually 5 days.
3.What payment methods are accepted for STM32F746ZET6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F746ZET6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F746ZET6TR?
STM32F746ZET6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F746ZET6TR 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 STM32F746ZET6TR?
For technical support, including STM32F746ZET6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F746ZET6TR requirements.
6.How does Aetrix verify that STM32F746ZET6TR is sourced from the original manufacturer or authorized distributors?
All STM32F746ZET6TR 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 STM32F746ZET6TR meets industry standards.
7.What is the process for return or replacement of STM32F746ZET6TR?
All STM32F746ZET6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F746ZET6TR, 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 STM32F746ZET6TR part is unused and in its original packaging.
Return procedure for STM32F746ZET6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32F746ZET6TR Tags
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