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STM32H745IIT6

STM32H745IIT6

STM32H745IIT3

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High-performance and DSP with DP-FPU, Arm Cortex-M7 + Cortex-M4 MCU with 2MBytes of Flash memory, 1MB RAM, 480 MHz CPU, Art Accelerator, L1 cache, external memory interface, large set of peripherals, SMPS

Quantity $ per Unit Savings
1 - 9$18.910%
10 - 24$17.836%
25 - 99$17.259%
100 - 249$15.9416%
250 - 500$14.9021%
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Out of stock
$18.91
Parameter NameParameter Value
Supply Voltage Min Volt1.62
Supply Voltage Max Volt3.6
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius125.0
CoreArm Cortex-M4
ECCN US3A991.a.2
ECCN EUNEC
Packing TypeTray
RoHs compliantEcopack2
GradeIndustrial
Package NameLQFP 176 24x24x1.4 mm

STM32H745xI/G devices are based on the high-performance Arm® Cortex®-M7 and Cortex®-M4 32-bit RISC cores. The Cortex®-M7 core operates at up to 480 MHz and the Cortex®-M4 core at up to 240 MHz. Both cores feature a floating point unit (FPU) which supports Arm® single- and double-precision (Cortex®-M7 core) operations and conversions (IEEE 754 compliant), including a full set of DSP instructions and a memory protection unit (MPU) to enhance application security.


STM32H745xI/G devices incorporate high-speed embedded memories with a dual-bank Flash memory of up to 2 Mbytes, up to 1 Mbyte of RAM (including 192 Kbytes of TCM RAM, up to 864 Kbytes of user SRAM and 4 Kbytes of backup SRAM), as well as an extensive range of enhanced I/Os and peripherals connected to APB buses, AHB buses, 2x32-bit multi-AHB bus matrix and a multi layer AXI interconnect supporting internal and external memory access.


All the devices offer three ADCs, two DACs, two ultra-low power comparators, a low-power RTC, a high-resolution timer, 12 general-purpose 16-bit timers, two PWM timers for motor control, five low-power timers, a true random number generator (RNG). The devices support four digital filters for external sigma-delta modulators (DFSDM). They also feature standard and advanced communication interfaces.

Key features
  • Dual core
    • 32-bit Arm® Cortex®-M7 core with double-precision FPU and L1 cache: 16 Kbytes of data and 16 Kbytes of instruction cache; frequency up to 480 MHz, MPU, 1027 DMIPS/ 2.14 DMIPS/MHz (Dhrystone 2.1), and DSP instructions
    • 32-bit Arm® 32-bit Cortex®-M4 core with FPU, Adaptive real-time accelerator (ART Accelerator™) for internal Flash memory and external memories, frequency up to 240 MHz, MPU, 300 DMIPS/1.25 DMIPS /MHz (Dhrystone 2.1), and DSP instructions
  • Memories
    • Up to 2 Mbytes of Flash memory with read-while-write support
    • 1 Mbyte of RAM: 192 Kbytes of TCM RAM (inc. 64 Kbytes of ITCM RAM + 128 Kbytes of DTCM RAM for time critical routines), 864 Kbytes of user SRAM, and 4 Kbytes of SRAM in Backup domain
    • Dual mode Quad-SPI memory interface running up to 133 MHz
    • Flexible external memory controller with up to 32-bit data bus: SRAM, PSRAM, SDRAM/LPSDR SDRAM, NOR/NAND Flash memory clocked up to 125 MHz in Synchronous mode
    • CRC calculation unit
  • Security
    • ROP, PC-ROP, active tamper
  • General-purpose input/outputs
    • Up to 168 I/O ports with interrupt capability
  • Reset and power management
    • 3 separate power domains which can be independently clock-gated or switched off:
      • D1: high-performance capabilities
      • D2: communication peripherals and timers
      • D3: reset/clock control/power management
    • 1.62 to 3.6 V application supply and I/Os
    • POR, PDR, PVD and BOR
    • Dedicated USB power embedding a 3.3 V internal regulator to supply the internal PHYs
    • Embedded regulator (LDO) to supply the digital circuitry
    • High power-efficiency SMPS step-down converter regulator to directly supply VCORE and/or external circuitry
    • Voltage scaling in Run and Stop mode (6 configurable ranges)
    • Backup regulator (~0.9 V)
    • Voltage reference for analog peripheral/VREF+