STMicroelectronics, 32bit ARM Cortex M7, STM32 Microcontroller, 280MHz, 128 kbyte Flash, 64-Pin LQFP

The STMicroelectronics devices are based on the high-performance Arm Cortex M7 32-bit RISC core operating at up to 280 MHz The Cortex M7 core features a floating point unit (FPU) which supports Arm double-precision (IEEE 754 compliant) and single-precision data-processing instructions and data types. STM32H7B0xB devices support a full set of DSP instructions and a memory protection unit (MPU) to enhance application security. STM32H7B0xB devices incorporate high-speed embedded memories with a flash memory of 128 Kbytes, around 1.4 Mbyte of RAM (including 192 Kbytes of TCM RAM, 1.18 Mbytes of user SRAM and 4 Kbytes of backup SRAM), as well as an extensive range of enhanced I/Os and peripherals connected to four APB buses, three AHB buses, a 32-bit multi-AHB bus matrix and a multi layer AXI interconnect supporting internal and external memory access.

Dedicated USB Power embedding a 3.3 V internal regulator to supply the internal PHYs
Dedicated SDMMC Power Supply
High Power Efficiency SMPS Step-Down Converter regulator to directly supply VCORE or external circuitry
Embedded Regulator (LDO) with configurable scalable output to supply the digital circuitry
Voltage Scaling in Run and Stop mode
Backup Regulator 0.9 V
Low-Power Modes Sleep, Stop, and Standby
VBAT Battery Operating Mode with charging capability