Description
The STM32F745xx and STM32F746xx devices are built around the
high-performance ARM® Cortex®-M7 32-bit RISC core, which can run at
up to 216 MHz. The Cortex®-M7 core has a single floating point unit
(SFPU) that supports all ARM® singleprecision data-processing
instructions and data formats. It also includes a full set of DSP
instructions as well as a memory protection unit (MPU), which
improves program security. The STM32F745xx and STM32F746xx devices
incorporate high-speed embedded memories with a 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.
Features
• 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
• Up to 25 communication interfaces
– Up to 4× I2C interfaces (SMBus/PMBus)
– Up to 4 USARTs/4 UARTs (27 Mbit/s, ISO7816 interface, LIN, IrDA,
modem control)
– Up to 6 SPIs (up to 50 Mbit/s), 3 with muxed simplex I2S for
audio class accuracy via internal audio PLL or external clock
– 2 x SAIs (serial audio interface)
– 2 × CANs (2.0B active) and SDMMC interface
– SPDIFRX interface
– HDMI-CEC
• Advanced connectivity
– USB 2.0 full-speed device/host/OTG controller with on-chip PHY
– USB 2.0 high-speed/full-speed device/host/OTG controller with
dedicated DMA, on-chip full-speed PHY and ULPI
– 10/100 Ethernet MAC with dedicated DMA: supports IEEE 1588v2
hardware, MII/RMII
• 8- to 14-bit parallel camera interface up to 54 Mbyte/s
• True random number generator
• CRC calculation unit
• RTC: subsecond accuracy, hardware calendar
• 96-bit unique ID
