STMicroelectronics STM32H730ZBI6

Overview

STM32H730ZBI6 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 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 offload.

For engineers reviewing the STM32H730ZBI6 datasheet, STM32H730ZBI6 pinout, STM32H730ZBI6 application, or STM32H730ZBI6 equivalent, key selection criteria include LQFP144 package compatibility, 550 MHz M7 core performance with L1 cache, ECC-protected memory architecture, integrated Chrom-ART accelerator for GUI rendering, and triple FDCAN support for automotive-grade communication stacks.

Technical Context

The STM32H730ZBI6 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, alongside an MPU for memory protection and DSP extensions for signal processing. Its bus matrix supports concurrent access across 24 DMA channels, including MDMA with linked-list capability and dual-port DMAs with FIFO buffering.

Timing subsystem includes three independent PLLs (main, audio, USB), configurable clock tree supporting multiple domain frequencies, and dedicated low-power timers (LPTIM1–LPTIM5) retaining operation in Stop mode. Analog subsystem integrates two 16-bit ADCs with interleaved sampling (7.2 MSPS), one 12-bit ADC (5 MSPS), two op-amps (8 MHz GBW), and two comparators - all with hardware synchronization to timer triggers.

Key Specifications

Pinout & Package

STM32H730ZBI6 is housed in a 144-pin LQFP package (20 × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per alternate function mapping across GPIO banks A–K, supporting multiplexed peripheral signals including FDCAN_RX/TX, ETH_MII, USB_OTG_HS, SAI1/2, and LCD-TFT interface lines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H730ZBI6, the H743ZIT6 offers greater memory headroom at higher cost and complexity, while the H750ZBT6 trades Ethernet and third FDCAN for expanded RAM - making the ZBI6 optimal for balanced industrial gateways requiring integrated networking and deterministic real-time I/O.

Availability

STM32H730ZBI6 is available at Aetrix Electronics and suitable for industrial HMI gateways, secure edge nodes, motor control hubs, and automotive diagnostic tools requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for STM32H730ZBI6 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 determinism, security, and graphics capability - with the H730 variant optimized for cost-sensitive industrial gateways requiring Ethernet, triple FDCAN, and hardware crypto without premium memory density.

FAQ

What is the maximum operating frequency and core type of the STM32H730ZBI6?

The STM32H730ZBI6 features an Arm Cortex-M7 core rated for operation up to 550 MHz, supported by 32 KB instruction and 32 KB data L1 caches that enable zero-wait-state execution from embedded flash or external memory. This frequency is achievable across the full industrial temperature range (-40°C to +105°C) when powered within the specified 1.62–3.6 V supply range and with proper thermal management on the LQFP144 package.

Does the STM32H730ZBI6 include hardware cryptographic acceleration?

Yes, the STM32H730ZBI6 integrates dedicated crypto hardware including AES-128/192/256, TDES, HASH (MD5, SHA-1, SHA-2), HMAC, a true random number generator (RNG), and two OTFDEC engines for on-the-fly AES-128 decryption of Octo-SPI memory. These accelerators operate independently of the CPU, enabling secure boot, encrypted firmware updates, and authenticated communication without degrading real-time performance.

What package type and pin count does the STM32H730ZBI6 use?

The STM32H730ZBI6 uses a 144-pin LQFP package (20 × 20 mm, 0.5 mm pitch) designated as "1A" in ST's packaging nomenclature. It includes an exposed thermal pad for enhanced heat dissipation and complies with ECOPACK2 environmental standards. Pin functions are fully documented in Section 5 of DS13315 Rev 5, covering primary GPIO, peripheral alternate functions, power, and debug signals.

How many FDCAN interfaces does the STM32H730ZBI6 support, and what are their key capabilities?

The STM32H730ZBI6 integrates three fully independent FDCAN controllers compliant with ISO 11898-1:2015, each supporting bit rates up to 5 Mbps, FD frame payloads up to 64 bytes, and protocol-level error handling. They share no common registers or clocks, allowing simultaneous operation on separate buses - for example, FDCAN1 for powertrain diagnostics, FDCAN2 for chassis control, and FDCAN3 for infotainment messaging - with hardware message filtering and TX/RX FIFOs.