STMicroelectronics STM32H742VGT6

Overview

STM32H742VGT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M7 microcontroller operating at up to 480 MHz, featuring 1 MB flash, 1 MB RAM (including 192 KB TCM), and dual-domain power architecture (D1/D2/D3). It integrates dual CAN FD controllers, Ethernet MAC, LCD-TFT controller, hardware JPEG codec, and 3× 16-bit ADCs (3.6 MSPS), deployed in industrial HMI, motor control gateways, and real-time vision edge nodes.

For engineers reviewing the STM32H742VGT6 datasheet, STM32H742VGT6 pinout, STM32H742VGT6 application, or STM32H742VGT6 equivalent, key selection considerations include its 480 MHz M7 core with L1 cache, triple PLL clock system with fractional mode, 168 GPIOs with interrupt capability, and support for external SDRAM/NOR via FMC - critical for high-throughput deterministic embedded systems.

Technical Context

The STM32H742VGT6 implements a three-domain power architecture (D1 high-performance, D2 communication/timers, D3 reset/clock/power management) enabling independent clock gating and voltage scaling across six configurable ranges. Its interconnect matrix comprises one AXI and two AHB bus matrices with five AHB2-APB and two AXI2-AHB bridges.

It features four DMA controllers: one high-speed MDMA with linked-list support, two dual-port DMAs with FIFO, and one basic DMA with request router. The device supports true low-power operation down to 2.95 µA in Standby mode (RTC/LSE ON, Backup SRAM OFF) and includes a dedicated USB 3.3 V regulator and backup regulator (~0.9 V).

Key Specifications

Pinout & Package

LQFP100 package: 14 × 14 mm body, 0.5 mm pitch, exposed thermal pad (EP), RoHS-compliant, ECOPACK2 certified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H743VIT6, the STM32H742VGT6 omits crypto accelerators and CCM-SRAM but retains full FMC, Quad-SPI, and dual ADC capability - making it optimal for deterministic real-time control with memory expansion. Against STM32H750VBT6, it delivers 8× more flash and full peripheral complement at modest cost premium, justifying use in feature-rich edge nodes.

Availability

STM32H742VGT6 is available at Aetrix Electronics and suitable for industrial HMI gateways, real-time motor control nodes, and edge vision processing units requiring stable component supply, long-term manufacturability, and full production lifecycle support.

Supply support for STM32H742VGT6 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, specializing in microcontrollers, power management, sensors, and automotive ICs with strong industrial and embedded focus.

The STM32H7 series targets high-end real-time embedded applications demanding both computational throughput and peripheral richness - designed for deterministic control, rich UI, and edge intelligence in resource-constrained environments.

FAQ

What is the maximum operating frequency and core configuration of the STM32H742VGT6?

The STM32H742VGT6 features a single Arm Cortex-M7 core running at up to 480 MHz with double-precision floating-point unit, 16 KB instruction cache, and 16 KB data cache. It achieves 1027 DMIPS (2.14 DMIPS/MHz) per Dhrystone 2.1 benchmark and supports DSP instructions for signal processing workloads.

Does the STM32H742VGT6 support external SDRAM, and what interface is used?

Yes, the STM32H742VGT6 supports external SDRAM up to 256 MB via its Flexible Memory Controller (FMC), which provides a 32-bit data bus, address multiplexing, and synchronous clocking up to 100 MHz. The FMC also supports PSRAM, NOR/NAND flash, and SRAM with configurable timing parameters.

How many ADCs does the STM32H742VGT6 have, and what are their key specifications?

The device integrates three independent 16-bit analog-to-digital converters, each supporting up to 36 input channels and sampling at up to 3.6 MSPS in interleaved mode. They include hardware oversampling, analog watchdogs, and flexible trigger sources - enabling high-fidelity current/voltage sensing in motor control and power conversion.

Is the STM32H742VGT6 pin-compatible with other STM32H7-series MCUs in LQFP100 package?

Yes, the STM32H742VGT6 is pin-compatible with other LQFP100 variants in the STM32H742xG and STM32H743xG families (e.g., STM32H743VIT6), sharing identical mechanical footprint, power pin layout, and GPIO mapping - allowing direct hardware reuse across performance and feature variants.