Datasheet

Description STM32F745xx STM32F746xx
12/227 DocID027590 Rev 4
1 Description
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
®
single-
precision 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
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 I
2
Cs
• Six SPIs, three I
2
Ss in duplex mode. To achieve the audio class accuracy, the I
2
S
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. Refer
to
Table 2: STM32F745xx and STM32F746xx features and peripheral counts for the list of
peripherals available on each part number.
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
(refer to
Section 2.17.2: Internal reset OFF). 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.
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