STMicroelectronics STM32F4DISCOVERY

Overview

STM32F4DISCOVERY from STMicroelectronics is a development board featuring the STM32F407VG high-performance ARM Cortex-M4 MCU with 168 MHz clock, 1 MB Flash, 192 KB SRAM, FPU, DSP instructions, and integrated peripherals including Ethernet MAC, dual USB OTG (FS/HS), camera interface, and crypto/hash processor. It targets rapid prototyping of industrial control, audio processing, and IoT edge nodes requiring real-time signal handling and connectivity.

For engineers reviewing the STM32F4DISCOVERY datasheet, STM32F4DISCOVERY pinout, STM32F4DISCOVERY application, or STM32F4DISCOVERY equivalent, this kit provides immediate access to full STM32F407VG capabilities-including ART Accelerator™-enabled zero-wait-state Flash execution, 2.44 MSPS ADCs, dual full-duplex I²S, and IEEE 1588-compliant Ethernet-without external hardware setup.

Technical Context

The STM32F4DISCOVERY implements the STM32F407VG microcontroller in LQFP100 package, integrating a 168 MHz Cortex-M4 core with single-cycle MAC, floating-point unit, and adaptive real-time ART Accelerator™ for deterministic Flash execution. It includes dedicated hardware accelerators: cryptographic engine (AES-256, SHA-1, HMAC), true random number generator, and multi-layer AHB bus matrix supporting concurrent DMA transfers across 7 masters and 8 slaves.

Peripherals are fully exposed via on-board interfaces: ST-LINK/V2 debugger, MEMS accelerometer (LSM303DLHC), digital microphone (MP45DT02), RGB LED, user buttons, and Arduino-compatible expansion headers. The board supports both USB Device and Host modes via micro-AB connector and includes external PHY for 10/100 Ethernet operation.

Key Specifications

Availability

STM32F4DISCOVERY is available at Aetrix Electronics and suitable for industrial automation gateways, medical sensor hubs, audio DSP evaluation, and embedded vision prototyping requiring stable component supply and long-term toolchain support.

Supply support for STM32F4DISCOVERY 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, designing and manufacturing microcontrollers, power management ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The STM32 Discovery series delivers production-ready evaluation platforms for the STM32 microcontroller portfolio, enabling rapid validation of system architecture, peripheral integration, and firmware development before custom PCB design.

FAQ

Does STM32F4DISCOVERY include an external Ethernet PHY?

Yes, the board integrates a LAN8720A 10/100 Ethernet PHY connected to the STM32F407VG's MAC interface via RMII. This enables full IEEE 802.3-compliant Ethernet communication with hardware timestamping support for IEEE 1588 v2 precision time protocol.

What debug protocols does the onboard ST-LINK/V2 support?

The ST-LINK/V2 supports SWD (Serial Wire Debug) and JTAG protocols for programming and real-time debugging. It also provides SWV (Serial Wire Viewer) trace output and virtual COM port functionality, eliminating the need for separate debug probes during development.

Can the STM32F4DISCOVERY be used for audio applications out of the box?

Yes - it includes a digital MEMS microphone (MP45DT02), stereo audio codec (CS43L22) with headphone amplifier, and dual full-duplex I²S interfaces. Example firmware for voice capture, playback, and FFT-based analysis is provided in STM32CubeF4 middleware.

Is the STM32F407VG on this board pin-compatible with other STM32F4 series MCUs?

Yes - the STM32F407VG in LQFP100 package shares pinout compatibility with STM32F405VG, STM32F415VG, and STM32F417VG. This allows reuse of PCB layouts and firmware across performance- and feature-tier variants within the same package footprint.