STMicroelectronics STM32H7B0VBT6

Overview

STM32H7B0VBT6 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 dual Octo-SPI interfaces supporting on-the-fly AES decryption - deployed in industrial motor control, medical imaging front-ends, and high-resolution LCD-TFT display systems.

For engineers reviewing the STM32H7B0VBT6 datasheet, STM32H7B0VBT6 pinout, STM32H7B0VBT6 application, or STM32H7B0VBT6 equivalent, key selection criteria include TCM RAM allocation for real-time ISR latency, SMPS integration for power efficiency in battery-backed systems, FDCAN/TT-CAN coexistence for automotive diagnostics, and JPEG hardware codec support for embedded vision preprocessing.

Technical Context

The STM32H7B0VBT6 implements a six-stage dual-issue Cortex-M7 core with Harvard architecture, 16 Kbytes instruction and 16 Kbytes data L1 caches, and deterministic access to 64 Kbytes ITCM and 128 Kbytes DTCM RAM - enabling sub-100 ns interrupt response for time-critical motor control loops. Its interconnect matrix comprises one AXI and two AHB bus matrices with five DMA controllers, including a high-speed MDMA engine for zero-copy camera interface (DCMI) to JPEG codec transfers.

Memory subsystem includes two Octo-SPI interfaces running up to 140 MHz (SDR) and 110 MHz (DTR), each with dedicated OTFDEC AES-128 engines; a flexible external memory controller supporting SDRAM, NOR, PSRAM, and NAND; and dual 16-bit ADCs sampling at 3.6 MSPS with hardware oversampling for sensor fusion in industrial PLC analog input modules.

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch) package with 138 GPIOs - 164 of which are 5-V-tolerant, supporting legacy 5 V peripheral interfacing without level shifters. Pin functions validated per DS13196 Rev 7 Table 7 (pin/ball definition) and RM0455 Section 10.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H743VIT6, the STM32H7B0VBT6 trades flash/RAM headroom for integrated SMPS and JPEG acceleration - making it optimal for battery-aware HMIs and vision-adjacent edge nodes. Against STM32H750VBT6, it delivers 400 KB extra RAM and full graphics IP at minimal cost increase, justifying selection where future feature expansion or buffer-intensive algorithms are anticipated.

Availability

STM32H7B0VBT6 is available at Aetrix Electronics and suitable for industrial motor control, medical imaging front-ends, and smart building HMI applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized STMicroelectronics distribution channels.

Supply support for STM32H7B0VBT6 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, sensors, and analog products for industrial, automotive, and consumer markets.

The STM32H7 series targets high-end embedded applications demanding real-time performance, advanced security, and rich multimedia capabilities - with the H7B0 variant optimized for cost-sensitive, power-constrained designs requiring SMPS integration and hardware-accelerated vision processing.

FAQ

What is the maximum operating frequency and supported voltage range for the STM32H7B0VBT6?

The STM32H7B0VBT6 operates at up to 280 MHz across an ambient temperature range of −40 to +85 °C and 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 OCTOSPI and certain high-speed peripherals to maintain timing compliance per DS13196 Rev 7 Section 3.5.2.

Does the STM32H7B0VBT6 support secure firmware updates and cryptographic operations?

Yes. It integrates AES-128/192/256 engines supporting ECB, CBC, CTR, GCM, and CCM modes; HASH (MD5, SHA-1, SHA-2) and HMAC processors; two OTFDEC units for external Octo-SPI memory encryption; and a NIST SP 800-90B-compliant true random number generator - all enabling secure boot, authenticated firmware updates, and TLS offload in resource-constrained edge nodes.

How many analog-to-digital converters does the STM32H7B0VBT6 include, and what are their key specifications?

The device includes two 16-bit ADCs supporting up to 24 channels and 3.6 MSPS aggregate sampling rate. Each ADC supports hardware oversampling (up to 256×) and digital filtering, achieving up to 18-bit effective resolution. They share common analog inputs and operate with internal 1.2 V reference or external VREF+ - critical for precision current/voltage measurement in motor drive shunt sensing.

Can the STM32H7B0VBT6 drive an LCD-TFT display, and what graphics acceleration features are available?

Yes. It features a full LCD-TFT controller supporting XGA (1024×768) resolution with RGB interface, HSYNC/VSYNC/DE/CLK outputs, and programmable pixel clock. Complementing this are the Chrom-ART Accelerator (DMA2D) for 2D graphics composition and a hardware JPEG codec for real-time image compression/decompression - collectively reducing CPU load by >70% in GUI-intensive applications.