Item specifics
Description
The STM32F407ZGT7 is a Cortex-M4 high-performance MCU from STMicroelectronics in an LQFP-144 package, offering the extended temperature range version of the STM32F407ZGT6. It runs at 168 MHz with FPU and ART Accelerator. It integrates 1 MB Flash, 192 KB SRAM (incl. 64 KB CCM), 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). 114 I/Os, all 5 V-tolerant. Supply 1.8–3.6 V, operating temperature -40 °C to 105 °C. Core specifications are identical to the STM32F407ZGT6 (-40 to 85 °C), with only the temperature range extended to 105 °C, making it suitable for high-temperature industrial and automotive applications.
Core: Arm Cortex-M4 168 MHz + FPU + ART Accelerator Memory: 1 MB Flash, 192 KB SRAM (incl. 64 KB CCM) 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: 114, all 5 V-tolerant Low Power: Sleep/Stop/Standby, VBAT backup RTC Temperature Range: -40 °C to 105 °C Package: LQFP-144 (20×20×1.4 mm)
Industrial: PLCs, inverters, precision motor drives, industrial Ethernet gateways (high-temperature environments) Motor Control: Dual-motor FOC, servo drives, pumps Image Capture: Simple camera monitoring, barcode scanning, industrial vision Network Communication: Ethernet control nodes, IoT gateways Automotive: In-vehicle sensor nodes, vehicle lighting control, automotive gateways (non-safety-critical) Security Applications: IoT security, payment terminals Portable Medical Devices
-40 °C to 105 °C Wide Temperature: Meets high-temperature industrial and automotive requirements on the F407 series' flagship configuration 168 MHz Cortex-M4 + FPU: Strongest performance in this series for complex DSP and floating-point operations 1 MB Flash + 192 KB SRAM: Memory flagship configuration for large firmware and complex algorithms Ethernet + DCMI + Crypto Engine: Network communication, image capture, and data security in a 144-pin package 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 STM32F407ZGT7 and how does it differ from the STM32F407ZGT6?
The STM32F407ZGT7 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, and dual CAN, all in an LQFP‑144 package. The only difference from the popular ZGT6 is the operating temperature range: the ZGT7 is rated for -40 °C to +105 °C (industrial extended), while the ZGT6 covers -40 °C to +85 °C. All other features—clock speed, memory, peripherals, and pin‑out—are identical. Choose the ZGT7 when your product must operate reliably in harsh, high‑temperature environments such as outdoor industrial equipment, automotive subsystems, or furnace controllers.
Can the STM32F407ZGT7 handle a camera, Ethernet, and USB high‑speed at the same time?
Yes. The DCMI, Ethernet MAC (RMII or MII), and USB OTG HS (with an external ULPI PHY) use separate DMA channels and can run concurrently without blocking the CPU. The 1 MB Flash stores the camera driver, a TCP/IP stack, and a USB device/host stack comfortably. The 192 KB SRAM is sufficient for communication buffers and moderate image processing, while an external 16‑ or 32‑bit SDRAM (supported by the flexible memory controller) can hold frame buffers for higher‑resolution images.
Is the STM32F407ZGT7 still a good choice for new designs, or should I move to a newer series like the F407ZGT6?
The STM32F407ZGT7 remains a highly capable and widely available MCU. It offers the same core performance, memory, and peripherals as the STM32F407ZGT6 but adds the ability to operate up to +105 °C, making it suitable for thermally challenging industrial and automotive applications. For many products, especially those that need the proven F4 ecosystem and long‑term stability, the ZGT7 is still a solid choice. If you need higher performance (e.g., Cortex‑M7 at 216 MHz) or advanced graphics (Chrom‑ART, MIPI DSI), you can consider the STM32F7 series, but the F407ZGT7 remains competitive for connectivity‑focused designs without a graphical display.
How much external memory can the STM32F407ZGT7 drive, and can I add SDRAM for a frame buffer?
The flexible memory controller (FMC) supports up to 256 MB of external SDRAM with a 32‑bit data bus, as well as NOR and NAND Flash. This is perfect for storing large camera frame buffers, data logs, or additional code. The 192 KB internal SRAM is used for time‑critical buffers and the stack, while the external SDRAM handles bulk data. This architecture allows you to implement a complete IP camera, video doorbell, or industrial vision system with a single chip.
How does the STM32F407ZGT7 compare with the STM32F405? When should I pick the F407?
The STM32F405 lacks the Ethernet MAC and the DCMI camera interface, while the F407ZGT7 includes both. Both share the same CPU, memory, and most other peripherals. Choose the F407ZGT7 when your design requires wired networking and/or a parallel camera input, but does not need hardware cryptographic acceleration (that would be the STM32F417). If Ethernet and camera are not needed, the F405 can be a more cost‑effective alternative with the same core performance.
Can I upgrade an existing STM32F103 or STM32F2 design to the STM32F407ZGT7? What are the benefits?
Yes, the STM32F407ZGT7 is a common upgrade path. It offers a significantly faster CPU (168 MHz vs 72 MHz for the F103), an FPU and DSP instructions, a DCMI camera interface, Ethernet, USB OTG HS, and a larger memory (1 MB Flash, 192 KB SRAM). The LQFP‑144 package is often pin‑compatible with high‑end F103 and F2 devices, allowing a hardware redesign with minimal effort. Existing HAL code can be reused, and the performance boost enables more sophisticated applications such as real‑time image processing, web servers, and advanced motor control.
What is the maximum ambient temperature for the STM32F407ZGT7, and why is this important?
The ZGT7 is rated for an ambient temperature range of -40 °C to +105 °C (industrial extended). This is 20 °C higher than the standard ZGT6, making the ZGT7 suitable for equipment placed in unventilated enclosures, near heat sources, or in outdoor cabinets exposed to direct sunlight. Applications such as oil‑and‑gas sensors, automotive sub‑systems, and factory automation often require this extended temperature range to guarantee reliability over the product’s lifetime.
Does the STM32F407ZGT7 support over‑the‑air (OTA) firmware updates with its 1 MB single‑bank Flash?
Yes. The 1 MB Flash can be logically partitioned into a bootloader, an active application, and a download buffer, or into two 512 KB slots for an A/B update scheme. The generous SRAM can hold the new firmware image during reception via Ethernet, USB, or an external wireless module. With a proper signature verification, this provides a safe and robust OTA update mechanism even without hardware dual‑bank Flash.
What low‑power modes does the STM32F407ZGT7 support, and how does it perform in battery‑powered applications?
It supports Sleep, Stop, and Standby modes. In Stop mode with all SRAM retained, the typical current is around 110 µA. The chip can wake up quickly on Ethernet, USB, or external interrupts. Combined with its FPU and DSP capabilities, it is well‑suited for battery‑powered industrial sensors, portable instruments, and remote monitoring stations that sleep most of the time and wake to process and transmit data.
What are the most typical applications for the STM32F407ZGT7, given its high temperature rating and rich connectivity?
It excels in outdoor IP cameras, industrial vision sensors, automotive telematics, factory automation controllers, building management gateways, and smart‑energy equipment that must function reliably in hot, harsh environments. The combination of a DCMI camera, Ethernet, USB HS, and an extended temperature range in an easy‑to‑manufacture LQFP‑144 package makes it a versatile, long‑term platform for professional embedded systems.