Описание
The STM32F746 devices is based on the high-performance ARM Cortex-M7 32-bit RISC core operating at up to 216 MHz frequency. The Cortex-M7 core features a single floating point unit (SFPU) precision which supports all ARM singleprecision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances the application security. The STM32F746 devices incorporate high-speed embedded memories with Flash memory up to 1 Mbyte, 320 Kbytes of SRAM (including 64 Kbytes of Data TCM RAM for critical real time data), 16 Kbytes of instruction TCM RAM (for critical real time routines), 4 Kbytes of backup SRAM available in the lowest power modes, and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses, a 32-bit multi-AHB bus matrix and a multi layer AXI interconnect supporting internal and external memories access. All the devices offer three 12-bit ADCs, two DACs, a low-power RTC, thirteen general purpose 16-bit timers including two PWM timers for motor control and one low-power timer available in Stop mode, two general-purpose 32-bit timers, a true random number generator (RNG). They also feature standard and advanced communication interfaces. • Up to four I2Cs • Six SPIs, three I2Ss in duplex mode. To achieve the audio class accuracy, the I2S peripherals can be clocked via a dedicated internal audio PLL or via an external clock to allow synchronization. • Four USARTs plus four UARTs • An USB OTG full-speed and a USB OTG high-speed with full-speed capability (with the ULPI), • Two CANs • Two SAI serial audio interfaces • An SDMMC host interface • Ethernet and camera interfaces • LCD-TFT display controller • Chrom-ART Accelerator • SPDIFRX interface • HDMI-CEC
- Core: ARM® 32-bit Cortex®-M7 CPU with FPU, adaptive real-time accelerator (ART Accelerator™) and L1-cache: 4KB data cache and 4KB instruction cache, allowing 0-wait state execution from embedded Flash memory and external memories, frequency up to 216 MHz, MPU, 462 DMIPS/2.14 DMIPS/MHz (Dhrystone 2.1), and DSP instructions.
- Memories
- Up to 1MB of Flash memory
- 1024 bytes of OTP memory
- SRAM: 320KB (including 64KB of data TCM RAM for critical real time data) + 16KB of instruction TCM RAM (for critical real time routines) + 4KB of backup SRAM (available in the lowest power modes)
- Flexible external memory controller with up to 32-bit data bus: SRAM, PSRAM, SDRAM/LPSDR SDRAM, NOR/NAND memories
- Dual mode Quad-SPI
- LCD parallel interface, 8080/6800 modes
- LCD-TFT controller up to XGA resolution with dedicated Chrom-ART Accelerator™ for enhanced graphic content creation (DMA2D)
- Clock, reset and supply management
- 1.7 V to 3.6 V application supply and I/Os
- POR, PDR, PVD and BOR
- Dedicated USB power
- 4-to-26 MHz crystal oscillator
- Internal 16 MHz factory-trimmed RC (1% accuracy)
- 32 kHz oscillator for RTC with calibration
- Internal 32 kHz RC with calibration
- Low-power
- Sleep, Stop and Standby modes
- VBAT supply for RTC, 32×32 bit backup registers + 4KB backup SRAM
- 3×12-bit, 2.4 MSPS ADC: up to 24 channels and 7.2 MSPS in triple interleaved mode
- 2×12-bit D/A converters
- Up to 18 timers: up to thirteen 16-bit (1x lowpower 16-bit timer available in Stop mode) and two 32-bit timers, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input. All 15 timers running up to 216 MHz. 2x watchdogs, SysTick timer
- General-purpose DMA: 16-stream DMA controller with FIFOs and burst support
- Debug mode
- SWD & JTAG interfaces
- Cortex®-M7 Trace Macrocell™
- Up to 168 I/O ports with interrupt capability
- Up to 164 fast I/Os up to 108 MHz
- Up to 166 5 V-tolerant I/Os.
