Overview
The STMicroelectronics STM32F765NGH6 is a high-performance 32-bit microcontroller from the STM32 F7 series, based on the ARM Cortex-M7 core with Floating Point Unit (FPU). It is designed for demanding embedded applications that require advanced processing, high-speed connectivity, and extensive peripheral integration. The microcontroller is ideal for industrial automation, motor control, advanced human-machine interfaces (HMI), audio and video processing, medical devices, and complex embedded control systems. It combines high computational performance with real-time deterministic operation and rich analog and digital peripherals.
Core and Performance
The STM32F765NGH6 features an ARM Cortex-M7 core running at up to 216 MHz. The Cortex-M7 core includes a single-precision FPU and DSP instructions, enabling efficient floating-point operations, advanced signal processing, and high-speed control algorithm execution. The core implements a 6-stage pipeline, branch prediction, and Harvard architecture, ensuring high instruction throughput and deterministic real-time performance. It delivers up to 951 DMIPS, making it suitable for complex, computationally intensive embedded applications.
Memory Architecture
This microcontroller integrates 1 MB of Flash memory and 320 KB of SRAM. The Flash memory stores firmware, application code, and configuration data, while SRAM supports high-speed data processing, temporary buffers, stack operations, and real-time data acquisition. The memory architecture includes a prefetch buffer and instruction/data cache to improve execution speed and reduce latency, enabling high-performance control and processing tasks.
Analog and Mixed-Signal Features
The STM32F765NGH6 includes multiple 12-bit ADCs with up to 24 input channels for precise analog signal acquisition. Dual 12-bit DACs allow accurate analog signal generation for actuators, waveform synthesis, and motor control. Integrated operational amplifiers and comparators provide analog signal conditioning, threshold detection, and programmable gain, reducing the need for external analog components. These features support advanced motor control, sensor acquisition, and mixed-signal processing in industrial and automation systems.
Timers and PWM Control
The microcontroller offers multiple 16-bit and 32-bit general-purpose timers, advanced control timers, and basic timers with PWM generation. Timers support input capture, output compare, pulse counting, and high-resolution PWM for precise motor control, waveform generation, and real-time event management. Advanced timers allow for complementary PWM outputs, dead-time insertion, and synchronization with external events, which are essential for three-phase motor drives, inverters, and precision control applications.
Communication Interfaces
The STM32F765NGH6 provides a comprehensive set of communication interfaces, including USART, UART, SPI, I2C, CAN, USB 2.0 OTG Full Speed/High Speed, SDIO, and Ethernet. These interfaces enable connectivity with sensors, external memories, displays, other microcontrollers, and industrial networks. Dedicated DMA channels allow high-speed, low-latency data transfers between peripherals and memory, reducing CPU load and enhancing system performance for demanding real-time applications.
Display and Graphics Features
The microcontroller includes an LTDC (LCD-TFT Display Controller) capable of driving high-resolution TFT displays with up to 24-bit color depth. It also features a Chrom-ART Accelerator™ for graphics rendering and bitmap operations, enabling efficient development of smooth, responsive graphical user interfaces for HMIs, industrial panels, and consumer electronics applications.
Input/Output Features
The STM32F765NGH6 offers up to 168 GPIO pins, configurable as digital inputs, outputs, or alternate peripheral functions. GPIOs support push-pull or open-drain operation with programmable pull-up or pull-down resistors. Many pins are multiplexed for ADC channels, DAC outputs, timers, communication interfaces, and external memory, allowing flexible hardware design and compact board layouts for complex embedded systems.
Clock System and Power Management
The microcontroller operates over a voltage range of 1.7 V to 3.6 V and features an advanced clock system with internal RC oscillators, external crystal oscillators, and PLL-based frequency scaling. Multiple low-power modes, including Sleep, Stop, and Standby, allow energy-efficient operation in battery-powered or low-power applications. Dynamic frequency scaling enables designers to optimize performance and power consumption depending on system demands.
Security and Reliability
The STM32F765NGH6 incorporates independent and windowed watchdog timers, brownout detection, and voltage monitoring for reliable operation. Flash memory includes read/write protection, and an integrated true random number generator supports secure applications. The Cortex-M7 core ensures deterministic execution and high reliability in real-time and safety-critical applications.
Package and Physical Characteristics
The STM32F765NGH6 is available in a 144-pin LQFP package, providing extensive peripheral access while maintaining a manageable footprint for complex embedded systems. The device operates over an industrial temperature range of -40°C to 85°C, making it suitable for demanding industrial, automotive, and consumer electronics applications requiring high performance and reliability.
Key Specifications
* Core: ARM Cortex-M7 with FPU and DSP, 32-bit, up to 216 MHz
* Flash Memory: 1 MB
* SRAM: 320 KB
* ADC: 12-bit, up to 24 channels
* DAC: 12-bit, dual channel
* Operational Amplifiers: Integrated
* Comparators: Integrated
* GPIO: Up to 168 pins, configurable with alternate functions
* Communication Interfaces: USART, SPI, I2C, CAN, USB OTG FS/HS, SDIO, Ethernet
* Timers: Multiple 16-bit and 32-bit general-purpose and advanced control timers with PWM
* Display Controller: LTDC supporting high-resolution TFT displays
* Graphics Accelerator: Chrom-ART Accelerator™
* Power Supply: 1.7 V – 3.6 V
* Operating Temperature: -40°C to 85°C
* Package: 144-pin LQFP
* Low-Power Modes: Sleep, Stop, Standby
* Watchdog: Independent and windowed
* DMA Support: Yes
* True Random Number Generator: Yes
Summary
The STM32F765NGH6 is a high-performance, feature-rich microcontroller ideal for complex embedded systems requiring advanced computation, real-time control, mixed-signal processing, and graphical interfaces. Its ARM Cortex-M7 core with FPU and DSP accelerates computational tasks, while integrated ADCs, DACs, comparators, timers, and extensive communication interfaces enable precise analog control and high-speed connectivity. Coupled with advanced display and graphics capabilities, robust security features, and industrial temperature operation, the STM32F765NGH6 is well-suited for industrial automation, motor control, advanced HMIs, audio/video processing, and other demanding embedded applications.