Industry: Industrial Automation

The STM32F745xx and STM32F746xx devices are 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 STM32F745xx and STM32F746xx devices incorporate high-speed embedded memories with a flash memory up to 1 Mbytes, 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 generalpurpose 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

Advanced peripherals include an SDMMC interface, a flexible memory control (FMC) interface, a Quad-SPI flash memory interface, a camera interface for CMOS sensors. The STM32F745xx and STM32F746xx devices operate in the –40 to +105 °C temperature range from a 1.7 to 3.6 V power supply. A dedicated supply input for USB (OTG_FS and OTG_HS) is available on all the packages except LQFP100 for a greater power supply choice.

The supply voltage can drop to 1.7 V with the use of an external power supply supervisor. A comprehensive set of power-saving mode allows the design of low-power applications. The STM32F745xx and STM32F746xx devices offer devices in 8 packages ranging from 100 pins to 216 pins. The set of included peripherals changes with the device chosen.