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STMicroelectronics STM32F745IEK7
- Part No.:
- STM32F745IEK7
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 201-UFBGA
- Datasheet:
-
STM32F745IEK7.pdf
- Description:
- IC MCU 32BIT 512KB FLSH 176UFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,426
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Product details
Overview
STM32F745IEK7 from STMicroelectronics is a high-performance ARM Cortex-M7 microcontroller with FPU, 216 MHz max clock, 1 MB Flash, 320+16+4 KB RAM, and integrated peripherals including dual CAN, USB OTG HS/FS, 10/100 Ethernet MAC, LCD-TFT controller, and Chrom-ART Accelerator™-designed for real-time industrial HMI, motor control gateways, and embedded vision edge nodes.
For engineers reviewing the STM32F745IEK7 datasheet, STM32F745IEK7 pinout, STM32F745IEK7 application, or STM32F745IEK7 equivalent, key selection criteria include TCM RAM allocation (64 KB data + 16 KB instruction), dual-mode Quad-SPI support, hardware IEEE 1588v2 timestamping in Ethernet MAC, triple-interleaved ADC throughput (7.2 MSPS), and LQFP100 package compatibility with legacy STM32F4/F7 pinouts.
Technical Context
The device implements an Arm Cortex-M7 core with ART Accelerator™ and 4 KB instruction/data L1 caches enabling zero-wait-state execution from Flash or external memory. It integrates dual-bank Flash with read-while-write capability and supports deterministic real-time operation via tightly coupled memory (TCM) with dedicated bus paths.
Its peripheral architecture features a multi-layer AXI/AHB/APB bus matrix, dual DMA controllers (16-stream general-purpose + dedicated Ethernet/USB DMAs), and hardware-accelerated graphics (DMA2D) alongside dual CAN 2.0B controllers with time-triggered communication support and SPDIFRX for audio synchronization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M7 with FPU, 216 MHz max - enables floating-point-intensive control loops and DSP algorithms without software emulation overhead |
| Flash / RAM | 1 MB Flash + 320 KB SRAM + 64 KB data TCM + 16 KB instruction TCM - supports large firmware images, real-time data buffers, and latency-critical ISR code |
| ADC | 3×12-bit, 2.4 MSPS each; 7.2 MSPS triple interleaved - meets high-speed sensor sampling requirements for predictive maintenance systems |
| Ethernet | 10/100 MAC with IEEE 1588v2 hardware timestamping - enables precise time-synchronized industrial automation and TSN-capable edge nodes |
| Display Interface | LCD-TFT controller up to XGA (1024×768) with Chrom-ART Accelerator™ - offloads CPU for GUI rendering in HMI applications |
| Package | LQFP100 (14×14 mm, 0.5 mm pitch) - provides 80 GPIOs with 5 V tolerance and full debug (SWD/JTAG) accessibility in compact footprint |
| Crypto | True RNG + CRC unit - satisfies basic entropy and data integrity requirements for secure boot and firmware update validation |
Pinout & Package
LQFP100 package with 100 leads, 0.5 mm pitch, 14×14 mm body, and exposed thermal pad (EP). Pinout validated per STMicroelectronics DS10916 Rev 5, Section 4 "Pinouts and pin description".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD/VSS | Power supply / ground | Dual 1.7–3.6 V analog/digital domains with dedicated VCAP1/VCAP2 decoupling for core regulator stability |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 164 fast I/Os (108 MHz), 166 5 V-tolerant pins - supports mixed-voltage interfacing with legacy industrial sensors and actuators |
| PH0/PH1 | HSE oscillator input/output | 4–26 MHz crystal connection for high-accuracy system clock generation and USB/Ethernet timing compliance |
| PD0/PD1 | USART2 TX/RX | Default asynchronous serial interface with LIN/IRDA/ISO7816 modes - used for bootloader communication and field diagnostics |
| PA11/PA12 | USB FS D+/D− | On-chip full-speed PHY - eliminates external transceiver for cost-sensitive USB device/host implementations |
| PA13/PA14 | SWDIO/SWCLK | 2-pin Serial Wire Debug interface - enables minimal-footprint in-circuit debugging and programming |
Key Features
| Feature | Design Value |
|---|---|
| ART Accelerator™ + L1 cache | Enables 0-wait-state execution from Flash at 216 MHz - eliminates performance penalty of embedded flash latency in real-time control |
| Dual CAN 2.0B controllers | Supports concurrent CAN FD-ready networks (with external transceivers) and time-triggered communication for automotive-grade diagnostics |
| Chrom-ART Accelerator™ (DMA2D) | Hardware bitmap blending, rotation, and color format conversion - reduces CPU load by >70% in GUI rendering vs. software-only implementation |
| Flexible Memory Controller (FMC) | Supports NOR/NAND/PSRAM/SDRAM up to 32-bit data bus - enables expansion of code/data space for complex HMI or protocol gateway applications |
| Low-power timers (LPTIM1) | 16-bit counter operational in Stop mode with sub-millisecond wake-up - ideal for periodic sensor polling without full MCU restart |
Applications
| Industrial HMI Panel | Motor Control Gateway |
|---|---|
Use Scenario: 7-inch TFT display with touch interface running real-time PLC visualization and alarm logging. IC Role / Device Role / Timing Role: Primary application processor managing GUI rendering, EtherCAT slave stack, and local SD card data logging. Use Value: Chrom-ART Accelerator™ renders 60 FPS UI at <5% CPU load; Ethernet MAC with IEEE 1588v2 enables synchronized motion control across distributed drives. | Use Scenario: Field-mounted gateway aggregating CAN-based servo drives and feeding data to cloud via Ethernet/Wi-Fi bridge. IC Role / Device Role / Timing Role: Real-time protocol translator with deterministic CAN-to-Ethernet bridging and firmware OTA update handling. Use Value: Dual CAN controllers manage separate drive and sensor buses; 1 MB Flash stores dual-application images for safe A/B firmware updates. |
| Embedded Vision Edge Node | Secure Industrial IoT Gateway |
Use Scenario: Compact camera module performing on-device object detection and metadata tagging before streaming to edge server. IC Role / Device Role / Timing Role: Vision preprocessing engine capturing raw Bayer data via DCMI, applying histogram equalization, and compressing output. Use Value: Parallel camera interface sustains 54 MB/s throughput; triple-interleaved ADC samples thermal sensor array at 7.2 MSPS for environmental context fusion. | Use Scenario: DIN-rail mounted gateway authenticating field devices via PKI and encrypting telemetry before TLS transmission. IC Role / Device Role / Timing Role: Secure root-of-trust anchor executing secure boot, key provisioning, and AES-256 encryption acceleration. Use Value: True RNG seeds cryptographic operations; 96-bit unique ID binds firmware to hardware for anti-cloning; backup SRAM retains session keys during brownout. |
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 |
|---|---|---|---|
| STM32F746IGT6 | Same core/peripherals but 176-pin LQFP package, 2 MB Flash, integrated RGB LCD parallel interface | Better suited for larger displays (>7 inch) requiring higher pixel clock and more GPIOs for capacitive touch | Select when display resolution exceeds XGA or additional Flash is needed for dual-bank OTA |
| STM32H743VIT6 | Cortex-M7 @ 480 MHz, dual-core option, enhanced crypto (AES/HASH/PUF), no built-in Ethernet PHY | Targeted at ultra-low-latency control and secure boot-critical applications where external PHY is acceptable | Choose for >2× CPU performance uplift or mandatory PUF-based key storage; requires external Ethernet PHY design |
Compared with STM32F745IEK7, the STM32F746IGT6 offers higher Flash and display bandwidth at the cost of larger footprint, while the STM32H743VIT6 delivers double-clock performance and advanced security but removes integrated Ethernet PHY - making STM32F745IEK7 optimal for space-constrained, Ethernet-centric industrial gateways needing balanced performance and integration.
Availability
STM32F745IEK7 is available at Aetrix Electronics and suitable for industrial HMIs, motor control gateways, embedded vision edge nodes, and secure IoT gateways requiring stable component supply across extended product lifecycles.
Supply support for STM32F745IEK7 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, delivering silicon solutions for automotive, industrial, and consumer markets since 1987.
The STM32F7 series targets high-end real-time embedded applications demanding both computational power and rich peripheral integration - specifically engineered for deterministic control, graphical user interfaces, and protocol bridging in resource-constrained industrial environments.
FAQ
What is the maximum operating frequency and how is it achieved?
The STM32F745IEK7 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 internal Flash or external memories, verified under 1.7–3.6 V supply and ambient temperatures up to 105°C per DS10916 Rev 5 Section 6.3.1.
Does STM32F745IEK7 support hardware encryption acceleration?
No, the STM32F745IEK7 does not include dedicated cryptographic accelerators (e.g., AES, HASH, or PKA). It provides a true random number generator (RNG) and CRC calculation unit for basic entropy and data integrity, but symmetric/asymmetric encryption must be implemented in software or via external co-processors.
What are the key differences between STM32F745IEK7 and STM32F746xx variants?
The STM32F745IEK7 lacks the embedded Chrom-ART Accelerator™-enhanced LCD-TFT controller found in STM32F746xx, and omits the MIPI-DSI interface and JPEG codec. It retains identical CPU, memory, Ethernet, CAN, USB, and ADC capabilities - making it functionally equivalent for non-display-intensive applications while offering lower cost and power.
Can STM32F745IEK7 operate in low-power modes with RTC and backup SRAM active?
Yes, in Standby mode with VBAT supplied, the STM32F745IEK7 maintains RTC operation, 32×32-bit backup registers, and 4 KB backup SRAM. Wake-up sources include RTC alarm, tamper event, or external interrupt, with typical current consumption of 1.7 µA (typ.) per DS10916 Rev 5 Table 33.
STM32F745IEK7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 201-UFBGA
- 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, POR, PWM, WDT
- Number of I/O:
- 140
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F745IEK7 FAQ
1.How can I place an order for STM32F745IEK7 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F745IEK7 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 STM32F745IEK7 reliable?
The price and inventory of STM32F745IEK7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F745IEK7 is usually 5 days.
3.What payment methods are accepted for STM32F745IEK7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F745IEK7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F745IEK7?
STM32F745IEK7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F745IEK7 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 STM32F745IEK7?
For technical support, including STM32F745IEK7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F745IEK7 requirements.
6.How does Aetrix verify that STM32F745IEK7 is sourced from the original manufacturer or authorized distributors?
All STM32F745IEK7 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 STM32F745IEK7 meets industry standards.
7.What is the process for return or replacement of STM32F745IEK7?
All STM32F745IEK7 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F745IEK7, 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 STM32F745IEK7 part is unused and in its original packaging.
Return procedure for STM32F745IEK7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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