STMicroelectronics STM32H7B0RBT6

Overview

STM32H7B0RBT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M7 microcontroller operating at up to 280 MHz with double-precision FPU, 128 Kbytes of flash memory, 1.4 Mbytes of RAM (including 64 Kbytes ITCM + 128 Kbytes DTCM), and integrated SMPS regulator - deployed in motor control, industrial PLCs, and high-resolution display systems.

For engineers reviewing the STM32H7B0RBT6 datasheet, STM32H7B0RBT6 pinout, STM32H7B0RBT6 application, or STM32H7B0RBT6 equivalent, key selection criteria include dual ADC resolution (16-bit, 3.6 MSPS), Octo-SPI interface with on-the-fly decryption, cryptographic acceleration (AES/GCM/SHA-2), and LQFP64 package compatibility with 49 GPIOs and 24-channel analog input capability.

Technical Context

The STM32H7B0RBT6 implements a Harvard-architecture Cortex-M7 core with six-stage dual-issue pipeline, dynamic branch prediction, and separate 16 Kbytes instruction/data caches - enabling deterministic real-time execution and single-cycle cache line fill from 128-bit flash. Its interconnect matrix comprises one AXI and two AHB bus matrices with five DMA controllers, including a high-speed MDMA for offloading CPU-intensive transfers.

Memory architecture integrates three SRAM domains: TCM RAM (64 Kbytes ITCM + 128 Kbytes DTCM) for time-critical code/data, 1.18 Mbytes user SRAM on AXI/AHB, and 4 Kbytes backup SRAM - all managed under dual power domains (CPU domain and Smart Run Domain) with independent clock gating and voltage scaling in Run/Stop modes.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant ECOPACK2 construction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance Cortex-M7 microcontroller applications.

Compared with STM32H7B0RBT6, the H743VIT6 offers greater memory and peripheral headroom at the cost of board area and external power complexity, while the H750IBK6 delivers identical flash/RAM with expanded I/O and interfaces but removes the SMPS - making the RBT6 uniquely suited for compact, self-contained industrial edge nodes requiring regulated core voltage and minimal BOM.

Availability

STM32H7B0RBT6 is available at Aetrix Electronics and suitable for industrial motor control, medical sensor hubs, smart building HMIs, and edge AI gateways requiring stable component supply across multi-year production cycles.

Supply support for STM32H7B0RBT6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, MEMS, and automotive semiconductors since 1987.

The STM32H7 series targets high-end embedded applications demanding real-time performance, security, and rich connectivity - specifically engineered for industrial automation, medical devices, and advanced human-machine interfaces where computational density and power efficiency are critical.

FAQ

What is the maximum operating frequency and supported voltage range for STM32H7B0RBT6?

The STM32H7B0RBT6 operates at up to 280 MHz with a supply voltage range of 1.62 V to 3.6 V. At voltages below 2.7 V, the I/O high-speed at low-voltage (HSLV) feature must be enabled for full-speed operation on compatible pins. The embedded SMPS regulator supports direct VCORE regulation from 2.7–5.5 V input, improving system efficiency over traditional LDO-based designs.

Does STM32H7B0RBT6 support hardware cryptographic acceleration, and which algorithms are implemented?

Yes, STM32H7B0RBT6 includes dedicated hardware accelerators for AES-128/192/256 (ECB/CBC/CTR/GCM/CCM), HASH (MD5/SHA-1/SHA-2), HMAC, and a NIST SP 800-90B-compliant true random number generator (TRNG). It also features two OTFDEC modules for on-the-fly AES-128 decryption of Octo-SPI memory contents - enabling secure external code execution without runtime decryption overhead.

How many analog-to-digital converters does STM32H7B0RBT6 integrate, and what are their key specifications?

The STM32H7B0RBT6 integrates two 16-bit successive-approximation ADCs supporting up to 24 input channels and a maximum sampling rate of 3.6 MSPS. Each ADC includes hardware oversampling, offset calibration, and differential mode. They operate in the Smart Run Domain and share common analog resources including VREF+, VDDA, and VSSA rails - requiring strict PCB layout separation from digital noise sources to maintain specified ENOB.

What debug interfaces are supported, and is SWD sufficient for full development?

STM32H7B0RBT6 supports both SWD (Serial Wire Debug) and JTAG interfaces, with 4 KB of Embedded Trace Buffer (ETB) for instruction trace. SWD is fully sufficient for standard debugging, programming, and real-time variable monitoring; JTAG is required only for advanced boundary-scan testing or multi-core debug scenarios. Both interfaces support breakpoints, watchpoints, and memory inspection via standard IDEs (STM32CubeIDE, Keil, IAR).