STMicroelectronics STM32H7 High-Performance MCUs

STMicroelectronics STM32H7 High-Performance MCUs are based on the high-performance Arm® Cortex®-M7 32-bit RISC core operating at up to 480MHz. The Cortex-M7 core features a floating-point unit (FPU) that supports Arm double-precision (IEEE 754 compliant) and single-precision data-processing instructions and data types. The STM32H7 MCUs support a full set of DSP instructions and a memory protection unit (MPU) to enhance application security.

The MCUs incorporate high-speed embedded memories with a dual-bank Flash memory up to 2 Mbytes, 1 Mbyte of RAM (including 192 Kbytes of TCM RAM, 864 Kbytes of user SRAM and 4 Kbytes of backup SRAM). The devices also have 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.

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 and a true random number generator (RNG). The devices support four digital filters for external sigma-delta modulators (DFSDM) and feature standard and advanced communication interfaces.

Features

Core
- 32-bit Arm® Cortex®-M7 core with doubleprecision FPU and L1 cache: 16 Kbytes of data and 16 Kbytes of instruction cache allowing one cache line to be filled in a single access from the
256-bit embedded Flash memory; frequency up to 480MHz, MPU, 856DMIPS/2.14 DMIPS/MHz (Dhrystone 2.1), and DSP instructions
Memories
- Up to 2Mbytes of Flash memory with readwhile-write support
- 1Mbyte of RAM: 192Kbytes of TCM RAM (inc. 64Kbytes of ITCM RAM + 128Kbytes of DTCM RAM for time critical routines), 864Kbytes of user SRAM, and 4Kbytes of SRAM in Backup domain
- Dual mode Quad-SPI memory interface running up to 133MHz
- Flexible external memory controller with up to 32-bit data bus: SRAM, PSRAM, SDRAM/LPSDR SDRAM, NOR/NAND Flash clocked up to 133MHz 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
  - Fast I/Os capable of up to 133 MHz
  - Up to 164 5 V-tolerant I/Os

Reset and power management
- 3 separate power domains which can be independently clock gated or switched off to maximize power efficiency:
  - D1: high-performance capabilities for high bandwidth peripherals
  - D2: communication peripherals and timers
  - D3: reset/clock control/power management
- 1.62 to 3.6V application supply and I/Os
- POR, PDR, PVD, and BOR
- Dedicated USB power embedding a 3.3V internal regulator to supply the internal PHYs
- Embedded regulator (LDO) with configurable scalable output to supply the digital circuitry
- Voltage scaling in Run and Stop mode (5 configurable ranges)
- Backup regulator (~0.9V)
- Voltage reference for analog peripheral/VREF+
- Low-power modes: Sleep, Stop, Standby and VBAT supporting battery charging
Low-power consumption
- Total current consumption down to 4μA
Clock management
- Internal oscillators: 64MHz HSI, 48MHz HSI48, 4MHz CSI, 40kHz LSI
- External oscillators: 4-48MHz HSE, 32.768kHz LSE
- 3× PLLs (1 for the system clock, 2 for kernel clocks) with fractional mode