Item specifics
Description
The STM32F407IGT6 is a Cortex-M4 high-performance MCU from STMicroelectronics in an LQFP-176 package, one of the most I/O-rich models in the STM32F407 series in an LQFP package. It runs at 168 MHz with FPU and ART Accelerator. It integrates 1 MB Flash, 192 KB SRAM, Ethernet 10/100 MAC (IEEE 1588 PTP, MII/RMII), USB 2.0 OTG (FS/HS, FS on-chip PHY), camera interface (DCMI), hardware crypto/HASH processor, two 12-bit DACs, three 12-bit ADCs (24ch, up to 7.2 MSPS in triple-interleaved mode), up to 17 timers (incl. 2 advanced motor control PWM/deadtime). 140 I/Os, all 5 V-tolerant. Supply 1.8–3.6 V, -40–85 °C. Compared to the STM32F405ZGT6 (LQFP-144, 114 I/Os), it upgrades to an LQFP-176 package with even more I/O resources and adds an Ethernet MAC interface for network communication. Core specifications are identical to the STM32F407IGH6 (UFBGA-176); only the package is changed from BGA to LQFP-176, making it better suited for hand soldering and standard SMT production. Compared to the STM32F401RET6 (84 MHz Cortex-M4), it doubles the core frequency, significantly upgrades memory and peripherals, and adds advanced features including Ethernet, DCMI, crypto engine, and dual DACs.
Core: Arm Cortex-M4 168 MHz + FPU + ART Accelerator Memory: 1 MB Flash, 192 KB SRAM Ethernet MAC: 10/100 Mbit/s, IEEE 1588 PTP hardware support, MII/RMII USB 2.0 OTG: FS + HS, FS on-chip PHY, HS requires external ULPI SDIO + HW Crypto: SD/MMC interface; AES 128/192/256, 3DES, HASH (MD5, SHA-1), RNG Camera Interface: 8–14-bit parallel DCMI 3×12-bit ADCs: 24 channels, 2.4 MSPS (up to 7.2 MSPS in triple-interleaved mode) 2×12-bit DACs: Buffered output Timers: Up to 17 (2× motor control PWM/deadtime/emergency stop, 12× 16-bit GP/quadrature encoder, 2× basic, 2× watchdogs, SysTick) Communication Interfaces: 4×USART + 2×UART (ISO7816/LIN/IrDA), 3×SPI (30 Mbit/s), 2×I2S, 3×I2C (SMBus), USB OTG, SDIO, Ethernet I/Os: 140, all 5 V-tolerant Low Power: Sleep/Stop/Standby, VBAT backup RTC Package: LQFP-176 (24×24×1.4 mm)
Industrial: PLCs, inverters, precision motor drives, industrial Ethernet gateways Motor Control: Dual-motor FOC, servo drives, pumps Image Capture: Simple camera monitoring, barcode scanning, industrial vision Network Communication: Ethernet control nodes, IoT gateways Consumer: Drone flight controllers, game controllers, high-end remote controls Security Applications: IoT security, payment terminals Portable Medical Devices Complex Embedded Systems: Applications requiring numerous I/Os, multi-peripheral connectivity, and Ethernet
168 MHz Cortex-M4 + FPU: Strongest performance in this series for complex DSP and floating-point operations 192 KB SRAM + 1 MB Flash: Ample memory for large firmware and complex algorithms LQFP-176 Package + Ethernet: 140 I/Os with extremely rich resources, integrated Ethernet MAC for high-performance network communication DCMI Camera Interface: Supports CMOS sensors for image capture and vision applications Hardware Crypto Engine: AES/3DES/HASH/RNG for data security Dual DACs + 3 ADCs: Comprehensive analog functions with multi-channel synchronous acquisition 17 Timers (incl. 2 Motor Control): Supports dual-motor FOC Mature STM32 Ecosystem: CubeIDE/CubeMX/HAL/LL
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FAQ:
What is the STM32F407IGT6 and how does it differ from the STM32F407ZGT6?
The STM32F407IGT6 is a 168 MHz Arm Cortex‑M4F microcontroller with 1 MB Flash, 192 KB SRAM, a DCMI camera interface, 10/100 Ethernet MAC, USB OTG HS/FS, dual CAN, and an FMC supporting SDRAM. The key difference from the ZGT6 is the package: the IGT6 uses an LQFP‑176 with up to 140 I/Os, while the ZGT6 uses an LQFP‑144 with up to 114 I/Os. This extra I/O allows a full 32‑bit SDRAM interface, more parallel peripherals, and fewer pin‑multiplexing constraints, making it ideal for complex designs that need to connect a camera, Ethernet, USB HS, and a large SDRAM simultaneously.
Why choose the LQFP‑176 package over the LQFP‑144 or LQFP‑100? What additional capability do I get?
The LQFP‑176 provides 140 I/Os, compared to 114 on the LQFP‑144 and 82 on the LQFP‑100. This gives you enough pins to run a full 32‑bit SDRAM without multiplexing, a complete set of serial interfaces (UART, SPI, I2C), dual CAN, Ethernet (MII or RMII), USB HS, and a DCMI camera interface—all at the same time with no pin conflicts. The larger package also offers more space for power and ground pins, improving signal integrity and thermal performance.
Can the STM32F407IGT6 handle a camera, Ethernet, USB high‑speed, and a 32‑bit SDRAM simultaneously?
Yes, and this is one of its strongest advantages. With 140 I/Os, you can allocate a 32‑bit SDRAM, an 8‑ or 14‑bit DCMI camera, Ethernet (MII or RMII), USB OTG HS (with ULPI), dual CAN, and still have pins left for multiple UART, SPI, and I2C interfaces. The separate DMA channels for each peripheral allow concurrent operation without CPU intervention. This makes the IGT6 a powerful single‑chip solution for full‑featured IP cameras, industrial vision systems, and multi‑protocol gateways.
How does the STM32F407IGT6 compare with the STM32F407VGT6? Which one is right for my design?
Both share the same 1 MB Flash, 192 KB SRAM, and core peripherals. The VGT6 is an LQFP‑100 with 82 I/Os, suitable for compact designs where pin count is limited and only an 8‑ or 16‑bit SDRAM is needed. The IGT6, with its LQFP‑176 and 140 I/Os, is the choice when you need a 32‑bit SDRAM, many concurrent peripherals, or the flexibility to add features without worrying about pin conflicts. If your design can accept the larger footprint, the IGT6 greatly simplifies hardware layout and future‑proofs your product.
Is the STM32F407IGT6 still a good choice for new designs, or should I move to a newer series?
Yes, it remains a robust, widely available MCU. The Cortex‑M4F with DSP and FPU, 1 MB Flash, Ethernet, USB HS, camera interface, and rich I/O cover a broad range of connected embedded applications. For products that do not require a graphics display or the latest M7/M33 cores, the IGT6 offers a proven, stable ecosystem, long‑term availability, and a large knowledge base. If you need advanced graphics, consider the STM32F429 series; otherwise, the F407IGT6 is a reliable workhorse for demanding industrial and IoT designs.
What is the maximum external SDRAM I can connect to the STM32F407IGT6?
The flexible memory controller (FMC) on the IGT6 supports up to 256 MB of SDRAM with a full 32‑bit data bus, giving double the peak bandwidth of a 16‑bit interface. This is essential for buffering high‑resolution camera frames, large data logs, or running a RAM‑intensive RTOS. The 192 KB internal SRAM is used for time‑critical data and the stack, while the external SDRAM handles bulk storage.
Can I upgrade from an STM32F407ZGT6 or STM32F207 design to the STM32F407IGT6? Is the pinout compatible?
The STM32F407IGT6 is often used as an upgrade from the LQFP‑144 ZGT6 when more I/Os are required. While the package is larger and not directly pin‑compatible, the peripheral functions and most pin locations follow a consistent mapping, making the migration straightforward with a new PCB layout. Existing HAL code for the F407 family can be reused with no changes. Moving from an STM32F207 also brings a faster CPU, FPU, and camera interface, significantly boosting performance.
How can I implement over‑the‑air (OTA) firmware updates with the STM32F407IGT6's 1 MB single‑bank Flash?
The 1 MB Flash can be logically partitioned into a bootloader, an active application area, and a download buffer, or split into two 512 KB slots for an A/B update scheme. The 192 KB SRAM can temporarily hold the new firmware image during reception via Ethernet or USB. A proper signature verification ensures a safe and reliable OTA process even without hardware dual‑bank Flash.
What low‑power modes does the STM32F407IGT6 support, and can it be used in battery‑powered devices?
It supports Sleep, Stop, and Standby modes. In Stop mode with full SRAM retention, typical current is about 110 µA. The chip can wake up quickly on Ethernet, USB, or external interrupts. Combined with its FPU and DSP capabilities, it is suitable for battery‑powered industrial sensors and portable instruments that sleep most of the time and wake to process and transmit data.
What are the most typical applications for the STM32F407IGT6, given its high I/O count and full connectivity?
It excels in high‑end IP cameras, industrial vision systems, multi‑protocol communication gateways (Ethernet‑to‑CAN/RS‑485/USB), complex motor drives with networking, and data concentrators. The LQFP‑176 package provides the I/O needed to integrate a camera, 32‑bit SDRAM, Ethernet, and multiple serial interfaces on a single chip, reducing BOM count and simplifying the PCB design.