STM32F746IET6 - 216MHz Cortex-M7 512KB MCU | ST
MPN: STM32F746IET6 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $20.5467 | $20.55 |
| 10 | $20.5467 | $205.47 |
| 100 | $20.5467 | $2,054.67 |
| 500 | $20.5467 | $10,273.35 |
| 1,000 | $20.5467 | $20,546.70 |
STM32F746IET6 Overview
A microcontroller is a compact semiconductor system that integrates a processor core, memory, peripherals, and communication interfaces into one device. In the STM32F7 family hierarchy, this part sits between general-purpose embedded control and higher-performance signal-processing systems. Its ARM Cortex-M7 architecture supports demanding control loops, human-machine interfaces, communications gateways, and multimedia front ends while retaining the software ecosystem and development approach associated with STM32 devices.
Verified distributor data identifies a maximum CPU frequency of 216 MHz, 512 KB of Flash organized as 512K x 8, 320 KB of RAM, and 140 I/O. The part is offered in a 176-LQFP 24 x 24 mm package. Other verified listings identify high-performance DSP with FPU, L1 cache, SDRAM, TFT, and Art Accelerator features. These characteristics make the device relevant to TFT display systems, industrial HMI controllers, imaging equipment, connected industrial equipment, and embedded audio or communications platforms.
The STM32F7 architecture provides a suitable balance between processing throughput and peripheral integration. Its 176-pin LQFP package exposes a broad interface set for external memory, displays, communications, control signals, and analog functions. The exact peripheral assignments, electrical limits, memory alternatives, and configuration details must be confirmed against the STMicroelectronics datasheet before schematic capture or firmware deployment.
Typical application areas include TFT and LCD human-machine interfaces, SDRAM-based image or communications systems, industrial automation controllers, networking equipment, audio processing, and general-purpose high-performance embedded control. The 216 MHz Cortex-M7 core and 512 KB Flash capacity provide meaningful headroom for protocol stacks, graphics acceleration, and real-time control tasks.
A key design consideration is package and memory planning. Because the STM32F746IET6 uses a 176-LQFP footprint, PCB layout, thermal behavior, and signal routing require careful validation. Designers should also verify external-memory topology, display interface requirements, peripheral assignments, and the complete STMicroelectronics pinout before committing the design to manufacturing.
This page consolidates verified distributor specifications, source links, package information, and practical engineering guidance for engineers evaluating the STM32F746IET6. It does not replace the manufacturer datasheet; missing electrical and peripheral details are marked for data collection rather than guessed.
Drop-in alternatives for STM32F746IET6 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with STM32F746IET6 (same form factor and footprint) — differing in Flash Memory, Package, Architecture, DSP Support, Product Family.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
STM32F429IET6
✅ Drop-In✓ In Stock
$9.5877 / Unit
View Datasheet →STM32F746VGT6
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →STM32F746IIT6
✅ Drop-In📋 Reference alternative (not in catalog)
STM32H745IIT6
✅ Drop-In✓ In Stock
$10.62 / Unit
View Datasheet →STM32F746IET6 Maximum Ratings & Electrical Characteristics
| Product Type | 32-bit ARM Cortex-M7 microcontroller |
| CPU Maximum Frequency | 216 MHz |
| Architecture | ARM Cortex-M7 with DSP and FPU |
| Flash Memory | 512 KB (512K x 8) |
| RAM | 320 KB |
| I/O Count | 140 I/O |
| Supply Voltage | 1.8 V, 2.5 V, or 3.3 V |
| Operating Temperature | -40 °C to +85 °C |
| Package | 176-LQFP, 24 mm x 24 mm |
| Mounting Type | Surface mount |
| Program Memory Type | Flash |
| Processor Core | ARM Cortex-M7 |
| DSP Support | DSP with FPU |
| Cache | L1 cache |
| External Memory Interface | SDRAM |
| Display Feature | TFT |
| Graphics Feature | Art Accelerator |
| Manufacturer | STMicroelectronics |
STM32F746IET6 176-lqfp, 24 mm x 24 mm Pin Configuration Guide
Pin configuration for STM32F746IET6 (176-lqfp, 24 mm x 24 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for STM32F746IET6.
Refer to the datasheet for full pin configuration.
Typical Applications
STM32F746IET6 is suitable for 6 applications: TFT Human-Machine Interface, SDRAM-Based Imaging Controller, Industrial Automation Controller, Networking and Communications Gateway, Embedded Audio Processing, High-Speed Data Acquisition.
TFT Human-Machine Interface
The STM32F746IET6 fits TFT-based industrial HMIs because its verified feature set includes a 216 MHz ARM Cortex-M7 core, SDRAM support, TFT capability, and Art Accelerator acceleration. Designers can use the 176-LQFP device beside a display controller or external memory interface when the application needs responsive graphics and real-time control in one embedded platform. The 320 KB RAM and 512 KB Flash provide space for graphics data, interface code, and control logic, although the actual display timing and pin multiplexing must be checked in the manufacturer datasheet.
Recommended
SDRAM-Based Imaging Controller
The STM32F746IET6 is a candidate for imaging and display-buffer systems that benefit from external SDRAM and higher processing throughput. Its verified 216 MHz Cortex-M7 performance, 320 KB internal RAM, SDRAM support, and Art Accelerator feature can help process or transfer image data while retaining deterministic embedded control. A practical design should use external memory routing that preserves signal integrity, define reset and clocking carefully, and verify all memory timing parameters against the STM32F7 reference materials.
Recommended
Industrial Automation Controller
STM32F746IET6 can support industrial automation functions that combine real-time control, communications, and a relatively high pin count. The verified 140 I/O and 320 KB RAM provide useful resources for sensor acquisition, actuator coordination, local HMI control, and communication protocol handling. Its -40 °C to +85 °C listed operating range is appropriate for many industrial environments, but designers must separately verify EMC, isolation, protection, and any application-specific qualification requirements.
Recommended
Networking and Communications Gateway
The 216 MHz Cortex-M7 core makes STM32F746IET6 suitable for protocol processing in embedded communications equipment, provided the required Ethernet, serial, or other interfaces are present in the selected configuration. The verified 512 KB Flash and 320 KB RAM are useful for firmware, buffers, and networking state, while 140 I/O supports multiple peripheral connections. Final selection requires checking the exact peripheral list, pin multiplexing, PHY support, clock requirements, and software middleware against the official documentation.
Recommended
Embedded Audio Processing
STM32F746IET6 is relevant to embedded audio systems because its verified DSP and FPU capabilities accompany a 216 MHz Cortex-M7 core. Those resources can support real-time filtering, mixing, control, and signal-processing tasks while the 320 KB RAM accommodates working buffers and the 512 KB Flash stores application code. Actual audio performance depends on the selected codec interface, sample rate, filter implementation, memory bandwidth, and DMA configuration, so those details require validation during schematic and firmware design.
Recommended
High-Speed Data Acquisition
STM32F746IET6 can be evaluated for high-speed data-acquisition front ends where the Cortex-M7 throughput and 140 I/O count are useful for coordinating sensors, converters, memory, and communications. Its DSP and FPU features may reduce processing overhead in control-oriented acquisition systems. The verified data does not specify the exact ADC architecture or converter interface, so designers must confirm analog front-end requirements, sampling timing, DMA behavior, and signal integrity before selecting the MCU.
Recommended
Recommended Products Summary
Engineering reference data for STM32F746IET6 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32F429IET6 | STM32F746VGT6 | STM32F746IIT6 | STM32H745IIT6 |
|---|---|---|---|---|---|
| Package | 176-LQFP 24 mm x 24 mm | 176-LQFP class | 176-LQFP class | 176-LQFP class | 176-LQFP class |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
Key Differentiators
- Higher verified CPU frequency than STM32F429IET6 (vs STM32F429IET6)
- Cortex-M7 architecture for higher-performance embedded workloads (vs STM32F429IET6)
- Explicit high-performance graphics and memory feature set (vs STM32F429IET6)
- Substantial RAM and Flash resources (vs STM32F429IET6)
Design Notes
Estimated: the verified STM32F746IET6 package is 176-LQFP at 24 mm x 24 mm. Treat the 0.5 mm class lead pitch as the primary assembly constraint and preserve the manufacturer-recommended land pattern, solder mask, and paste geometry. Confirm pin numbering, exposed thermal requirements, and footprint tolerances against the official STMicroelectronics package drawing before PCB release.
Estimated: if the design uses the verified SDRAM capability, route memory signals as a matched, short, continuously referenced group and avoid unnecessary stubs. Validate write timing, read timing, impedance, and topology against the selected memory device and the STM32F7 reference design. Because exact SDRAM pin assignments and timing limits were not supplied, do not finalize routing from distributor summaries alone.
Estimated: the verified operating supply options include 1.8 V, 2.5 V, and 3.3 V, but the exact core and I/O voltage domains must be confirmed in the datasheet. Implement separate filtering and decoupling for each required rail, place bulk and high-frequency capacitors close to the device, and measure startup sequencing and current behavior across the expected 216 MHz operating condition.
Estimated: although the verified industrial temperature listing is -40 °C to +85 °C, the allowable dissipation depends on the exact supply, clock, package, PCB copper, and ambient condition. Use the manufacturer thermal data when available, model worst-case clock and I/O activity, and provide copper spreading and airflow where the calculated junction margin is small.
Common pitfalls include treating STM32F746IET6 as interchangeable with STM32F429IET6 without reviewing the Cortex-M7 versus Cortex-M4 architecture, assuming the package name alone guarantees pin compatibility, or inferring regulatory status from distributor inventory pages. Verify the exact order code, datasheet revision, pin table, peripheral map, voltage domains, and firmware target before release.
Compliance Information
The supplied verified web data does not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields must be confirmed from current STMicroelectronics documentation.
