STMicroelectronics STM32H730IBT6Q

Overview

STM32H730IBT6Q from STMicroelectronics is a high-performance Arm® Cortex®-M7 32-bit microcontroller operating at up to 550 MHz, featuring 128 KB flash with ECC, 564 KB SRAM (all with ECC), dual 16-bit ADCs (3.6 MSPS), triple FDCAN, Ethernet MAC, USB 2.0 HS/FS OTG, and hardware crypto acceleration (AES-128/192/256, SHA-2, HMAC). It targets real-time industrial HMI, motor control gateways, and secure edge nodes requiring deterministic execution and graphics acceleration.

For engineers reviewing the STM32H730IBT6Q datasheet, STM32H730IBT6Q pinout, STM32H730IBT6Q application, or STM32H730IBT6Q equivalent, key selection criteria include LQFP100 package compatibility, 550 MHz M7 core performance with L1 cache, integrated DC-DC regulator, ECC-protected memory subsystem, and triple FDCAN support for automotive-grade communication stacks.

Technical Context

The STM32H730IBT6Q implements a dual-bank Arm Cortex-M7 core with 32 KB instruction and 32 KB data L1 caches enabling zero-wait-state execution from flash or external memory. Its memory architecture includes 128 KB embedded flash with ECC, 128 KB TCM RAM for time-critical data, 432 KB system RAM (up to 256 KB remappable as ITCM), and 4 KB backup SRAM active in standby mode.

It integrates a full peripheral suite including three FDCAN controllers compliant with ISO 11898-1:2015, an Ethernet MAC with DMA, two SAI audio interfaces, Chrom-ART Accelerator (DMA2D) for GUI offload, and cryptographic accelerators (CRYP/HASH/OTFDEC) supporting AES-128/192/256, SHA-2, and on-the-fly Octo-SPI decryption - all coordinated via a multi-layer AHB/APB bus matrix with 4 independent DMA controllers.

Key Specifications

Pinout & Package

STM32H730IBT6Q is housed in a 100-pin LQFP package (14 × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per ST's DS13315 Rev 5, Section 5 ("Pinouts, pin descriptions and alternate functions"), supporting full GPIO remapping, multiple low-power modes, and dedicated debug (SWD/JTAG) and boot configuration pins.

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 STM32H730IBT6Q trades flash/RAM capacity and dual-core capability for integrated DC-DC and extended temperature rating - making it optimal for thermally constrained, cost-sensitive industrial gateways. Against STM32H750IBK6, its +105°C rating enables deployment in harsher environments without derating, justifying the Q suffix qualification.

Availability

STM32H730IBT6Q is available at Aetrix Electronics and suitable for industrial HMI gateways, secure edge nodes, and high-precision motor drives requiring stable component supply, long-term lifecycle assurance, and ECOPACK2 environmental compliance.

Supply support for STM32H730IBT6Q 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 devices for industrial, automotive, and consumer markets.

The STM32H7 series targets high-end embedded applications demanding real-time determinism, graphics acceleration, and hardware security - with the H730 subfamily optimized for cost-sensitive, thermally demanding industrial gateways leveraging integrated DC-DC and extended temperature operation.

FAQ

What is the maximum operating temperature specification for STM32H730IBT6Q?

The STM32H730IBT6Q is qualified for industrial temperature range: –40°C to +105°C. This is confirmed in DS13315 Rev 5 Section 6.3.1 ("General operating conditions") and Package Information Section 7.2 (LQFP100). The "Q" suffix explicitly denotes extended temperature grade, distinguishing it from standard-grade variants like STM32H750IBK6 (–40°C to +85°C).

Does STM32H730IBT6Q support external SDRAM, and what interface is used?

Yes, STM32H730IBT6Q supports external SDRAM via its Flexible Memory Controller (FMC) with 24-bit data bus capability. As specified in DS13315 Rev 5 Section 3.18 and Table 67 (FMC characteristics), it supports LPDDR/SDR SDRAM and LPSDR SDRAM with configurable timing parameters, enabling up to 32 MB expansion for GUI frame buffers or large data logging.

How many independent FDCAN controllers does STM32H730IBT6Q integrate, and what protocol versions do they support?

The STM32H730IBT6Q integrates three fully independent FDCAN controllers (FDCAN1, FDCAN2, FDCAN3), each compliant with ISO 11898-1:2015. As detailed in DS13315 Rev 5 Section 3.45, they support Classical CAN, CAN FD (up to 5 Mbps), and time-triggered communication (TTCAN) modes - enabling simultaneous multi-network automotive or industrial gateway applications.

Is the Chrom-ART Accelerator (DMA2D) available on STM32H730IBT6Q, and what rendering formats does it support?

Yes, the Chrom-ART Accelerator (DMA2D) is fully integrated and enabled on STM32H730IBT6Q, as confirmed in DS13315 Rev 5 Section 3.14. It supports ARGB8888, RGB888, RGB565, ARGB1555, and ARGB4444 pixel formats, with hardware blending, line drawing, and memory-to-memory transfers - accelerating GUI composition for LCD-TFT displays up to XGA resolution without CPU intervention.