STMicroelectronics STM32H733VGT6

Overview

STM32H733VGT6 from STMicroelectronics is a high-performance Arm® Cortex®-M7 32-bit microcontroller operating at up to 550 MHz, featuring 1 MB flash with ECC, 564 KB SRAM (all with ECC), dual 16-bit ADCs (up to 3.6 MSPS), triple FD-CAN interfaces, 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 STM32H733VGT6 datasheet, STM32H733VGT6 pinout, STM32H733VGT6 application, or STM32H733VGT6 equivalent, key selection factors include L1 cache configuration (32 KB I-cache + 32 KB D-cache), TCM RAM allocation (128 KB data + configurable instruction TCM), Octo-SPI XiP support with on-the-fly AES decryption, and dual-port DMA architecture enabling concurrent peripheral-to-memory transfers without CPU intervention.

Technical Context

The device integrates a dual-bank Arm Cortex-M7 core with tightly coupled memory (TCM) and L1 cache, enabling zero-wait-state execution from flash or external memory. Its memory subsystem includes 128 KB data TCM RAM for time-critical variables and up to 256 KB system RAM remappable as instruction TCM RAM - critical for deterministic interrupt latency in motor control loops.

Peripherals are architected for parallelism: four independent DMA controllers (including MDMA with linked-list support), dual-port DMAs with FIFO, and hardware accelerators (CORDIC for trigonometric functions, FMAC for filter math, Chrom-ART for 2D graphics). The triple FD-CAN interface supports ISO 11898-1:2015 compliant CAN FD frames with bit rates up to 5 Mbit/s and payload sizes up to 64 bytes.

Key Specifications

Pinout & Package

STM32H733VGT6 is housed in a 100-pin LQFP package (14 × 14 mm, 0.5 mm pitch), RoHS-compliant and ECOPACK2 certified. Pin layout supports full peripheral multiplexing while maintaining signal integrity for high-speed interfaces including USB HS, Ethernet, and Octo-SPI.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance MCU applications.

Compared with STM32H733VGT6, the H743VIT6 trades Ethernet connectivity for larger memory and DSI, while the H753VIT6 adds SDRAM support and PSA-certified security features - both retain identical FD-CAN, ADC, and graphics capabilities but target distinct system-level requirements.

Availability

STM32H733VGT6 is available at Aetrix Electronics and suitable for industrial motor control gateways, medical imaging front-ends, and secure edge IoT gateways requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for STM32H733VGT6 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 ICs, sensors, and automotive semiconductors.

The STM32H7 series targets high-end embedded applications demanding real-time determinism, advanced graphics, cryptography, and multi-protocol connectivity - specifically engineered for industrial automation, medical devices, and secure IoT endpoints.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32H733VGT6 achieves 550 MHz through its Arm Cortex-M7 core with dual-issue superscalar pipeline, L1 cache (32 KB I-cache + 32 KB D-cache), and optimized memory bus architecture. This frequency requires proper PCB layout for VCAP decoupling, stable 1.2 V core supply, and use of HSE or PLL clock sources meeting jitter specifications per DS13314 Section 6.3.11.

Does this MCU support external SDRAM, and what controller is used?

No, the STM32H733VGT6 does not integrate an SDRAM controller. It features a Flexible Memory Controller (FMC) supporting NOR/NAND, PSRAM, and SRAM, but lacks SDRAM timing logic. For SDRAM support, select STM32H743 or STM32H753 variants which include dedicated SDRAM controller peripherals per RM0433 reference manual.

How many FD-CAN interfaces does the STM32H733VGT6 have, and are they fully independent?

The STM32H733VGT6 integrates three fully independent FD-CAN controllers (FDCAN1, FDCAN2, FDCAN3), each with dedicated TX/RX pins, message RAM, and protocol engines. They operate concurrently at different bit rates (up to 5 Mbit/s) and support ISO 11898-1:2015 CAN FD frames with flexible data length up to 64 bytes.

Is the Chrom-ART Accelerator capable of alpha blending and rotation operations?

Yes, the Chrom-ART Accelerator (DMA2D) supports hardware-accelerated alpha blending, color format conversion (RGB565 ↔ ARGB8888), and bitmap rotation (90°/180°/270°) without CPU involvement. These operations execute in parallel with CPU tasks, reducing frame buffer update time by up to 70% compared to software-only rendering per AN5026 application note.