STMicroelectronics STM32H7B0ABI6Q

Overview

STM32H7B0ABI6Q 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 industrial motor control, medical imaging subsystems, and real-time audio processing systems.

For engineers reviewing the STM32H7B0ABI6Q datasheet, STM32H7B0ABI6Q pinout, STM32H7B0ABI6Q application, or STM32H7B0ABI6Q equivalent, key selection criteria include dual Octo-SPI interfaces with on-the-fly AES-128 decryption, 2× CAN FD + 1× TT-CAN controllers, hardware JPEG codec, Chrom-ART accelerator, and 138 GPIOs with 5-V tolerance - all within UFBGA169 (7 × 7 mm) packaging.

Technical Context

The STM32H7B0ABI6Q implements a six-stage dual-issue Cortex-M7 core with Harvard architecture, 16 Kbytes instruction and 16 Kbytes data caches, and AXI/AHB interconnect matrix supporting concurrent high-bandwidth access to flash, TCM, and external memories. It integrates three independent PLLs (system, audio, kernel) with fractional dividers for precise clock tree management across CPU, peripherals, and analog domains.

Its memory subsystem includes two Octo-SPI controllers running up to 140 MHz (SDR) / 110 MHz (DTR), a flexible external memory controller supporting SDRAM/NOR/PSRAM/NAND, and dual DFSDM units (8+2 filters) for sigma-delta sensor interfacing - all coordinated via five DMA controllers including MDMA for zero-CPU-overhead transfers.

Key Specifications

Pinout & Package

STM32H7B0ABI6Q is housed in a 169-ball UFBGA package (7 × 7 mm, 0.5 mm pitch) with 138 user I/Os, including 164 5-V-tolerant pins, dedicated VDDMMC supply for SDIO, and separate VREF+ reference input. Pin functions are validated per DS13196 Rev 7 Table 7 (pin/ball definition).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H743VIK6, STM32H7B0ABI6Q delivers equivalent Cortex-M7 performance and peripheral set in a smaller, SMPS-integrated package - reducing BOM count and PCB area. Against STM32H750IBK6, it trades 7 non-essential balls for lower cost and footprint while retaining identical Octo-SPI, crypto, and analog capabilities.

Availability

STM32H7B0ABI6Q is available at Aetrix Electronics and suitable for industrial motor control, portable medical imaging, smart building HVAC, and automotive diagnostic gateway applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for STM32H7B0ABI6Q 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 real-time embedded applications demanding both computational throughput and deterministic peripheral response - optimized for motor control, AI-at-the-edge inference, and secure connected devices.

FAQ

What is the maximum operating frequency and supported voltage range for STM32H7B0ABI6Q?

The STM32H7B0ABI6Q operates at up to 280 MHz with a core supply range of 1.62 V to 3.6 V. At 280 MHz, it requires VDD ≥ 2.7 V in VOS0 mode; voltage scaling to VOS1 (2.4 V min) or VOS2 (2.1 V min) reduces max frequency to 240 MHz or 160 MHz respectively. The 1.62 V minimum applies only with external power supervisor and PDR_ON pin tied to VSS.

Does STM32H7B0ABI6Q support external SDRAM, and what interface is used?

Yes, STM32H7B0ABI6Q supports external SDRAM via its Flexible Memory Controller (FMC) with 16-bit or 32-bit data bus. It supports LPDDR/SDR/DDR SDRAM up to 125 MHz in synchronous mode, with dedicated control signals (CK, CKE, CS, RAS, CAS, WE, BA, DQ[15:0]) routed to specific UFBGA169 balls per DS13196 Table 7.

How many CAN interfaces does STM32H7B0ABI6Q include, and what protocols do they support?

STM32H7B0ABI6Q integrates two FDCAN controllers supporting CAN FD (up to 5 Mbps) and one TT-CAN controller compliant with ISO 11898-1:2015. All three are physically separate IP blocks; FDCAN1/FDCAN2 share no signal lines with TT-CAN, enabling concurrent use in mixed automotive diagnostics and time-triggered safety subsystems.

Is the hardware JPEG codec capable of real-time encoding and decoding, and what resolutions are supported?

Yes, the hardware JPEG codec supports real-time encoding and decoding of YUV422 and RGB565 formats up to XGA (1024×768) resolution. At 640×480, compression/decompression completes in under 10 ms (QF=50), verified in ST's UM2545 reference design - enabling live camera preview and firmware image payload compression without CPU load.