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LQFP-100 · STM32H743VIT6
Active32-bit ARM Cortex-M7 MCU
STM32H743VIT6
STMicroelectronics · LQFP-100 · 32-bit ARM Cortex-M7 MCU
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Overview
The STM32H743VIT6 is ST's high-performance single-core flagship in a hand-solderable LQFP-100: an Arm Cortex-M7 with double-precision FPU running at up to 480 MHz on revision-V silicon (revision Y tops out at 400 MHz, so check the marking and IDCODE before committing to a clock target). It carries 2 MB of dual-bank flash with read-while-write support and roughly 1 MB of RAM distributed across instruction and data TCM, a 512 KB AXI SRAM and several general-purpose SRAM blocks, plus a Chrom-ART (DMA2D) accelerator, JPEG codec and LCD-TFT controller. 82 I/O are available on the 100-pin package, and VDD runs from 1.62 V to 3.6 V with a wide range of power-down, stop and standby modes.
Analogue and connectivity resources are dense. There are three 16-bit ADCs sampling at up to 3.6 MSPS, two 12-bit DACs, an internal temperature sensor, a 10/100 Ethernet MAC with IEEE-1588, two FDCAN controllers, USB OTG high-speed with ULPI and full-speed with on-chip PHY, two SDMMC interfaces, SAI and SPDIF-RX audio interfaces, a high-resolution timer block for digital power conversion, dual Octo-SPI for execute-in-place from external flash or driving HyperBus memory, and dozens of timers including 32-bit units. That combination is why H743 boards appear in machine-vision edge nodes, digital power supplies, audio DSP hardware and industrial HMI controllers that previously needed an external application processor.
For procurement the important details are revision and authenticity. Revision V (480 MHz) and revision Y (400 MHz) parts share the ordering code family, so confirm the revision in DBGMCU_IDCODE and set your firmware clock target accordingly; ST's errata sheets also differ by revision. Counterfeit and clone risk on the H7 is lower than on the F1/F4 lines because the die is expensive, but remarked revision-Y parts sold as V, and pulled chips from decommissioned boards, do appear. Verify unique ID, revision code and flash size, and test the Octo-SPI, Ethernet and ADC paths. MOQ is one tray (90 pcs) or 100 pcs cut tape; ST lead time is typically 10-20 weeks, with Shenzhen stock shipping in 1-3 days.
Key Features
- Cortex-M7 with double-precision FPU at up to 480 MHz (revision V), 400 MHz on revision Y
- 2 MB dual-bank flash and about 1 MB of RAM across TCM, AXI and general-purpose SRAM
- Three 16-bit ADCs at 3.6 MSPS, two 12-bit DACs and a high-resolution timer block
- Ethernet MAC, 2x FDCAN, USB OTG HS/FS, dual Octo-SPI, SDMMC x2, SAI and SPDIF-RX
- Hardware graphics: LCD-TFT controller, Chrom-ART DMA2D accelerator and JPEG codec
Typical Applications
- Edge machine-vision and camera processing with JPEG encoding
- Industrial HMI panels driving RGB or MIPI-bridged displays
- Digital power supplies, motor drives and high-resolution measurement instruments
- Professional audio DSP, USB audio interfaces and mixing consoles
- Gateway devices aggregating Ethernet, CAN FD and fieldbus traffic
Specifications
- Core
- ARM Cortex-M7 (Double-Precision FPU)
- Max Clock
- 480 MHz
- Flash
- 2048 KB
- SRAM
- 1024 KB
- Supply Voltage
- 1.62 to 3.6 V
- I/O Lines
- 82
- ADC
- 3x 16-bit, 3.6 MSPS
- Operating Temperature
- -40 to 85 °C
- Pins
- 100
- RoHS
- Compliant
Procurement Tips
Always specify the silicon revision you need (480 MHz revision V versus 400 MHz revision Y) in the purchase order and ask for the IDCODE readout; otherwise a well-priced lot can silently cap your clock target and force a firmware and thermal revalidation cycle.
Frequently Asked Questions
What is the difference between STM32H743 revision Y and revision V?
Revision Y runs the Cortex-M7 at up to 400 MHz, revision V at up to 480 MHz with additional errata fixes and slightly different voltage scaling requirements. Both are marked within the same part number family, so read DBGMCU_IDCODE to confirm the revision before setting your system clock, and check the ST errata sheet for that revision.
How does the STM32H743 compare with the STM32F407?
The F407 is a 168 MHz Cortex-M4F with 1 MB flash and 192 KB RAM and 12-bit ADCs. The H743 nearly triples the clock, moves to a Cortex-M7 with double-precision FPU and cache, offers 2 MB flash with about 1 MB RAM, 16-bit ADCs, Chrom-ART graphics acceleration and a JPEG codec. Both run STM32Cube HAL code, but the H7 needs cache and MPU configuration to reach its performance.
Should I use the STM32H750VB instead?
If your firmware fits in 128 KB, yes - the H750 keeps the same core, the same 1 MB of RAM and the same LQFP-100 pinout but with much less internal flash at a lower price, expecting code to run from external Octo-SPI flash via XIP. If you need large internal flash, OTA dual-bank updates or simpler boot logic, stay with the 2 MB H743.
Why does my H743 design need careful power sequencing and decoupling?
At 480 MHz the core draws significant current with fast transients, and the VDD range starts at 1.62 V. You need a low-noise core supply, bulk and high-frequency decoupling on every VDD pin, a properly stitched ground plane under the exposed pad, and attention to the SMPS or LDO layout ST recommends. Poor decoupling shows up as random hard faults or ADC noise rather than a clean failure.
How do I verify that H743 chips are genuine and the right revision?
Read DBGMCU_IDCODE for DEV_ID and revision, read the unique 96-bit device ID, confirm reported flash size, then exercise the paths that fakes and pulled parts fail: Octo-SPI XIP at speed, Ethernet at 100 Mbps, all three ADCs at 3.6 MSPS and USB HS. Inspect laser marking, package dimensions and lead finish; remarking on LQFP-100 usually leaves a polished or ink-covered surface.
What is the MOQ and lead time for STM32H743VIT6?
MOQ is one tray (90 pcs) or 100 pcs on cut tape; production runs are typically 500-3,000 pcs. ST authorised lead time has been 10-20 weeks and longer during allocation. Our Shenzhen stock generally ships in 1-3 business days for up to 2,000 pcs, with C-of-C, lot codes and optional X-ray or electrical test reports.
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