STMicroelectronics STM32H7B0IBT6

Overview

STM32H7B0IBT6 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 high-throughput motor control, industrial PLCs, and embedded vision systems requiring deterministic real-time execution.

For engineers reviewing the STM32H7B0IBT6 datasheet, STM32H7B0IBT6 pinout, STM32H7B0IBT6 application, or STM32H7B0IBT6 equivalent, key selection considerations include its dual Octo-SPI interfaces with on-the-fly AES decryption, 138 GPIOs with 5-V tolerance, FDCAN/TT-CAN dual controller support, and LQFP100 package compatibility for space-constrained industrial designs.

Technical Context

The STM32H7B0IBT6 implements a six-stage dual-issue Cortex-M7 core with Harvard architecture, 16 KB instruction and 16 KB data caches, and AXI/AHB interconnect matrices enabling concurrent high-bandwidth access to flash, TCM, and external memories. It integrates three PLLs (system + two kernel) with fractional dividers for precise clock tree management across CPU, peripheral, and audio domains.

Its memory subsystem includes 192 KB TCM RAM (64 KB ITCM + 128 KB DTCM) for time-critical code/data, 1.18 MB user SRAM, and dual Octo-SPI controllers supporting SDR/DTR modes up to 140 MHz and 110 MHz respectively - with hardware OTFDEC for AES-128 CTR-mode decryption of external serial PSRAM/NOR/HyperRAM.

Key Specifications

Pinout & Package

LQFP100 package (14 × 14 mm, 0.5 mm pitch) 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 STM32H743VIT6, the STM32H7B0IBT6 trades flash/RAM capacity for integrated SMPS and dual OTFDEC-enabled Octo-SPI - optimizing for compact, power-efficient, and secure edge nodes. Against STM32H750IBK6, it adds TT-CAN and second Octo-SPI - critical for deterministic industrial networks and dual-memory architectures.

Availability

STM32H7B0IBT6 is available at Aetrix Electronics and suitable for industrial PLCs, embedded vision gateways, smart HVAC controllers, and portable medical diagnostics requiring stable component supply across extended product lifecycles.

Supply support for STM32H7B0IBT6 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 components for industrial, automotive, and consumer markets.

The STM32H7 series targets high-end embedded applications demanding real-time performance, security, and rich peripheral integration - with the H7B0 variant specifically optimized for space-constrained industrial and medical edge devices leveraging SMPS and encrypted external memory.

FAQ

What is the maximum operating frequency and supported voltage range for STM32H7B0IBT6?

The STM32H7B0IBT6 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 GPIO operation. The embedded SMPS regulator supports direct VCORE supply, improving efficiency over traditional LDO-based designs.

Does STM32H7B0IBT6 support secure boot and runtime encryption?

Yes - it includes two on-the-fly AES-128 CTR decryption engines (OTFDEC1/2) for Octo-SPI interfaces, enabling secure boot from encrypted external memory. It also features ROP/PC-ROP protection, active tamper detection, and hardware RNG compliant with NIST SP 800-90B - meeting foundational requirements for secure firmware updates and data confidentiality.

How many GPIOs does STM32H7B0IBT6 provide, and what is their voltage tolerance?

The STM32H7B0IBT6 provides up to 138 general-purpose I/Os in the LQFP100 package, with up to 164 pins rated for 5-V tolerance. Fast I/Os support toggling up to 133 MHz, and multiple pins are configurable for alternate functions including Octo-SPI, FMC, CAN, and USB OTG - enabling flexible peripheral mapping without external level shifters.

What development tools and debug interfaces are supported?

The device supports SWD and JTAG debugging via dedicated pins, with a 4 KB Embedded Trace Buffer for real-time instruction tracing. ST's STM32CubeIDE, STM32CubeMX, and STM32CubeH7 HAL/LL libraries provide full peripheral initialization and middleware support. Evaluation is enabled through the STM32H750B-DK discovery kit, which shares core architecture and pin compatibility.