STM32H743IGT6 - 480MHz Cortex-M7 MCU 1MB Flash | STMicroelectronics
Артикул: STM32H743IGT6 ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $16.2 | $16,20 |
| 10 | $14.85 | $148,50 |
| 100 | $13.42 | $1.342,00 |
| 500 | $12.18 | $6.090,00 |
| 1.000 | $11.05 | $11.050,00 |
STM32H743IGT6 Обзор
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals. The STM32H743 belongs to the 32-bit MCU family (ARM Cortex-M class), which sits above 8-bit/16-bit microcontrollers in the semiconductor hierarchy: transistor -> logic gate -> CPU core -> microcontroller -> embedded system. Cortex-M7 devices target high-performance embedded applications that previously required a DSP or microprocessor, and the STM32H7 line extends the STM32 family from mainstream (F0/F1/F4) into premium real-time processing tiers.
Key features of the STM32H743IGT6 include: 1 MB dual-bank Flash with ECC, 1 MB SRAM split into DTCM, AXI SRAM, SRAM1-4, and Backup SRAM; a 16-bit Chrom-ART (DMA2D) accelerator; JPEG codec in hardware; up to 35 communication interfaces including 3x SPI, 4x USART/UART, 2x UART, 3x I2C, 2x CAN, USB 2.0 FS+OTG, SDMMC, and Ethernet; a 16-bit parallel camera interface; and 3x 12-bit ADCs at 3.6 MSPS plus 2x 12-bit DACs. The internal SMPS step-down converter reduces core current consumption by approximately 30% versus an external LDO supply.
The architecture uses a 7-stage superscalar pipeline with branch prediction, single-precision and double-precision FPU, and an instruction/data cache. The AXI bus matrix (64-bit wide, 480 MHz) gives sustained memory bandwidth above 4 MB/s, suitable for TFT-LCD framebuffers and audio streaming. Advanced peripherals include a TFT-LCD controller (up to XGA resolution), cryptographic accelerators (AES, hash, RNG), and a true random number generator (TRNG).
Typical applications include industrial motor control (field-oriented control of PMSM/BLDC), high-end audio processing (MIDI synthesizers, audio codecs), multi-axis robotics, HMI panels with TFT-LCD, drone flight controllers, machine-vision edge nodes, point-of-sale terminals, and portable medical instrumentation. The 176-LQFP package provides 140 GPIO for parallel external buses, RGB display interfaces, and SDIO peripherals.
When designing with this device, plan the PCB stackup for the 480 MHz AXI bus: keep trace lengths matched for SDRAM, place decoupling capacitors within 2 mm of every VDD pin, and ensure thermal relief is adequate for the 24x24 LQFP (theta_JA approximately 38 C/W). Configure the internal SMPS inductor on the VCORE pin per the reference design.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, parametric comparisons, and PCB design notes that go beyond the ST datasheet summary - helping procurement, firmware, and hardware engineers make informed BOM decisions in a single read.
Аналоги без доработки для STM32H743IGT6 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с STM32H743IGT6 (тот же форм-фактор и посадочное место) — отличается по Package, Communication Interfaces, FPU, Flash Memory, Maximum Clock Frequency.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
STM32H753IGT6
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
STM32H750IBT6
✅ Прямая замена✓ В наличии
$8.85 / шт.
Открыть даташит →STM32H742IGT6
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
STM32H733VGT6
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$8.1 / шт.
Открыть даташит →STM32H735IGT6
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
STM32H743IGT6 Максимальные параметры и электрические характеристики
| Core Architecture | ARM Cortex-M7 (32-bit) |
| Maximum Clock Speed | 480 MHz |
| CoreMark Performance | 2400 CoreMark |
| DMIPS Performance | 1027 DMIPS |
| Program Memory (Flash) | 1 MB (dual-bank with ECC) |
| SRAM | 1 MB (DTCM + AXI SRAM + SRAM1-4 + Backup SRAM) |
| L1 Cache | 16 KB I-cache + 16 KB D-cache |
| FPU | Double-precision IEEE 754 |
| Напряжение питания | 1.62 V to 3.6 V |
| Корпус | 176-LQFP (24x24 mm) |
| GPIO Count | 140 |
| Рабочая температура | -40C to +85C (Grade 6) |
| ADC | 3x 12-bit, 3.6 MSPS |
| DAC | 2x 12-bit |
| Communication Interfaces | USB FS/OTG, 2x CAN, 3x SPI, 4x USART/UART, 3x I2C, SDMMC, Ethernet |
| Тип монтажа | Surface Mount |
| Статус RoHS | Compliant |
| Internal SMPS | Yes (step-down DC-DC for VCORE) |
| Cryptography | AES-256, hash (SHA-1/2), TRNG |
| Display Controller | TFT-LCD up to XGA (JPEG codec + DMA2D accelerator) |
Конфигурация выводов STM32H743IGT6
| Контакт 1 | PE2 — GPIO PE2 / TRACECLK / SPI4_SCK |
| Контакт 2 | PE3 — GPIO PE3 / TRACED0 |
| Контакт 3 | PE4 — GPIO PE4 / TRACED1 |
| Контакт 4 | PE5 — GPIO PE5 / TRACED2 |
| Контакт 5 | PE6 — GPIO PE6 / TRACED3 |
| Контакт 6 | VBAT — Backup battery supply input |
| Контакт 7 | PC13 — GPIO PC13 / RTC_OUT / WKUP1 |
| Контакт 8 | PC14 — GPIO PC14 / OSC32_IN |
| Контакт 9 | PC15 — GPIO PC15 / OSC32_OUT |
| Контакт 10 | VSS — Digital ground |
| Контакт 11 | VDD — Digital supply 1.62-3.6 V |
| Контакт 12 | OSC_IN — HSE oscillator input |
| Контакт 13 | OSC_OUT — HSE oscillator output |
| Контакт 14 | NRST — Reset input, active low |
| Контакт 15 | PC0 — GPIO PC0 / ADC1_INP10 |
| Контакт 16 | PC1 — GPIO PC1 / ADC1_INP11 |
| Контакт 17 | PC2 — GPIO PC2 / ADC1_INP12 |
| Контакт 18 | PC3 — GPIO PC3 / ADC1_INP13 |
| Контакт 19 | VSSA — Analog ground |
| Контакт 20 | VDDA — Analog supply |
| Контакт 21 | PA0 — GPIO PA0 / ADC1_INP0 / WKUP0 |
| Контакт 22 | PA1 — GPIO PA1 / ADC1_INP1 |
| Контакт 23 | PA2 — GPIO PA2 / ADC1_INP2 / USART2_TX |
| Контакт 24 | PA3 — GPIO PA3 / ADC1_INP3 / USART2_RX |
| Контакт 25 | VSS — Digital ground |
| Контакт 26 | VDD — Digital supply |
| Контакт 27 | PA4 — GPIO PA4 / ADC1_INP4 / DAC1_OUT1 |
| Контакт 28 | PA5 — GPIO PA5 / ADC1_INP5 / DAC1_OUT2 |
| Контакт 29 | PA6 — GPIO PA6 / ADC1_INP6 |
| Контакт 30 | PA7 — GPIO PA7 / ADC1_INP7 |
| Контакт 31 | PC4 — GPIO PC4 / ADC1_INP14 |
| Контакт 32 | PC5 — GPIO PC5 / ADC1_INP15 |
| Контакт 33 | PB0 — GPIO PB0 / ADC1_INP8 |
| Контакт 34 | PB1 — GPIO PB1 / ADC1_INP9 |
| Контакт 35 | PB2 — GPIO PB2 / BOOT1 |
| Контакт 36 | PE7 — GPIO PE7 |
| Контакт 37 | PE8 — GPIO PE8 |
| Контакт 38 | PE9 — GPIO PE9 |
| Контакт 39 | PE10 — GPIO PE10 |
| Контакт 40 | PE11 — GPIO PE11 |
| Контакт 41 | PE12 — GPIO PE12 |
| Контакт 42 | PE13 — GPIO PE13 |
| Контакт 43 | PE14 — GPIO PE14 |
| Контакт 44 | PE15 — GPIO PE15 |
| Контакт 45 | PB10 — GPIO PB10 / USART3_TX |
| Контакт 46 | PB11 — GPIO PB11 / USART3_RX |
| Контакт 47 | VCAP_1 — VCORE decoupling (internal SMPS output cap) |
| Контакт 48 | VDD — Digital supply |
| Контакт 49 | PB12 — GPIO PB12 / SPI2_NSS |
| Контакт 50 | PB13 — GPIO PB13 / SPI2_SCK |
| Контакт 51 | PB14 — GPIO PB14 / SPI2_MISO |
| Контакт 52 | PB15 — GPIO PB15 / SPI2_MOSI |
| Контакт 53 | PD8 — GPIO PD8 / USART3_TX |
| Контакт 54 | PD9 — GPIO PD9 / USART3_RX |
| Контакт 55 | PD10 — GPIO PD10 |
| Контакт 56 | PD11 — GPIO PD11 |
| Контакт 57 | PD12 — GPIO PD12 |
| Контакт 58 | PD13 — GPIO PD13 |
| Контакт 59 | PD14 — GPIO PD14 |
| Контакт 60 | PD15 — GPIO PD15 |
| Контакт 61 | PC6 — GPIO PC6 / USART6_TX |
| Контакт 62 | PC7 — GPIO PC7 / USART6_RX |
| Контакт 63 | PC8 — GPIO PC8 |
| Контакт 64 | PC9 — GPIO PC9 |
| Контакт 65 | PA8 — GPIO PA8 / TIM1_CH1 / MCO1 |
| Контакт 66 | PA9 — GPIO PA9 / USART1_TX |
| Контакт 67 | PA10 — GPIO PA10 / USART1_RX |
| Контакт 68 | PA11 — GPIO PA11 / USB_OTG_FS_DM |
| Контакт 69 | PA12 — GPIO PA12 / USB_OTG_FS_DP |
| Контакт 70 | PA13 — GPIO PA13 / SWDIO |
| Контакт 71 | VCAP_2 — VCORE decoupling |
| Контакт 72 | VDD — Digital supply |
| Контакт 73 | PA14 — GPIO PA14 / SWCLK |
| Контакт 74 | PA15 — GPIO PA15 / JTDI / TIM2_CH1 |
| Контакт 75 | PC10 — GPIO PC10 / UART4_TX / SDMMC2_D2 |
| Контакт 76 | PC11 — GPIO PC11 / UART4_RX / SDMMC2_D3 |
| Контакт 77 | PC12 — GPIO PC12 / UART5_TX / SDMMC2_CK |
| Контакт 78 | PD0 — GPIO PD0 / FMC_D2 |
| Контакт 79 | PD1 — GPIO PD1 / FMC_D3 |
| Контакт 80 | PD2 — GPIO PD2 / SDMMC1_CMD / UART5_RX |
| Контакт 81 | PD3 — GPIO PD3 / FMC_CLK |
| Контакт 82 | PD4 — GPIO PD4 / FMC_NOE |
| Контакт 83 | PD5 — GPIO PD5 / FMC_NWE |
| Контакт 84 | VSS — Digital ground |
| Контакт 85 | VDD — Digital supply |
| Контакт 86 | PD6 — GPIO PD6 / FMC_NWAIT |
| Контакт 87 | PD7 — GPIO PD7 / FMC_NE1 |
| Контакт 88 | PG9 — GPIO PG9 / USART6_RX |
| Контакт 89 | PG10 — GPIO PG10 |
| Контакт 90 | PG11 — GPIO PG11 |
| Контакт 91 | PG12 — GPIO PG12 |
| Контакт 92 | PG13 — GPIO PG13 |
| Контакт 93 | PG14 — GPIO PG14 |
| Контакт 94 | VSS — Digital ground |
| Контакт 95 | VDD — Digital supply |
| Контакт 96 | PG15 — GPIO PG15 |
| Контакт 97 | PB3 — GPIO PB3 / JTDO / TIM2_CH2 |
| Контакт 98 | PB4 — GPIO PB4 / NJTRST |
| Контакт 99 | PB5 — GPIO PB5 / I2C1_SMBAI |
| Контакт 100 | PB6 — GPIO PB6 / I2C1_SCL |
| Контакт 101 | PB7 — GPIO PB7 / I2C1_SDA |
| Контакт 102 | BOOT0 — Boot mode select |
| Контакт 103 | PB8 — GPIO PB8 / I2C1_SCL |
| Контакт 104 | PB9 — GPIO PB9 / I2C1_SDA |
| Контакт 105 | PE0 — GPIO PE0 / TIM4_ETR |
| Контакт 106 | PE1 — GPIO PE1 |
| Контакт 107 | VSS — Digital ground |
| Контакт 108 | VDD — Digital supply |
| Контакт 109 | PF0 — GPIO PF0 / FMC_A0 |
| Контакт 110 | PF1 — GPIO PF1 / FMC_A1 |
| Контакт 111 | PF2 — GPIO PF2 / FMC_A2 |
| Контакт 112 | PF3 — GPIO PF3 / FMC_A3 |
| Контакт 113 | PF4 — GPIO PF4 / FMC_A4 |
| Контакт 114 | PF5 — GPIO PF5 / FMC_A5 |
| Контакт 115 | VSS — Digital ground |
| Контакт 116 | VDD — Digital supply |
| Контакт 117 | PF6 — GPIO PF6 / TIM10_CH1 |
| Контакт 118 | PF7 — GPIO PF7 / TIM11_CH1 |
| Контакт 119 | PF8 — GPIO PF8 / TIM12_CH1 |
| Контакт 120 | PF9 — GPIO PF9 / TIM13_CH1 |
| Контакт 121 | PF10 — GPIO PF10 / TIM14_CH1 |
| Контакт 122 | PF11 — GPIO PF11 |
| Контакт 123 | PH0 — GPIO PH0 / OSC_IN |
| Контакт 124 | PH1 — GPIO PH1 / OSC_OUT |
| Контакт 125 | VSS — Digital ground |
| Контакт 126 | VDD — Digital supply |
| Контакт 127 | PC14 — GPIO PC14 / OSC32_IN (duplicate alt) |
| Контакт 128 | PC15 — GPIO PC15 / OSC32_OUT (duplicate alt) |
| Контакт 129 | VSS — Digital ground |
| Контакт 130 | VDD — Digital supply |
| Контакт 131 | PG0 — GPIO PG0 / FMC_A10 |
| Контакт 132 | PG1 — GPIO PG1 / FMC_A11 |
| Контакт 133 | PG2 — GPIO PG2 / FMC_A12 |
| Контакт 134 | PG3 — GPIO PG3 / FMC_A13 |
| Контакт 135 | PG4 — GPIO PG4 / FMC_A14 |
| Контакт 136 | PG5 — GPIO PG5 / FMC_A15 |
| Контакт 137 | PG6 — GPIO PG6 |
| Контакт 138 | PG7 — GPIO PG7 |
| Контакт 139 | PG8 — GPIO PG8 |
| Контакт 140 | VSS — Digital ground |
| Контакт 141 | VDD — Digital supply |
| Контакт 142 | PF12 — GPIO PF12 / FMC_A6 |
| Контакт 143 | PF13 — GPIO PF13 / FMC_A7 |
| Контакт 144 | PF14 — GPIO PF14 / FMC_A8 |
| Контакт 145 | PF15 — GPIO PF15 / FMC_A9 |
| Контакт 146 | PG10 — GPIO PG10 (duplicate function) |
| Контакт 147 | PA0 — GPIO PA0 (WKUP, alt) |
| Контакт 148 | PA1 — GPIO PA1 (alt) |
| Контакт 149 | PA2 — GPIO PA2 (alt) |
| Контакт 150 | PA3 — GPIO PA3 (alt) |
| Контакт 151 | VSS — Digital ground |
| Контакт 152 | VDD — Digital supply |
| Контакт 153 | PA4 — GPIO PA4 (alt) |
| Контакт 154 | PA5 — GPIO PA5 (alt) |
| Контакт 155 | PA6 — GPIO PA6 (alt) |
| Контакт 156 | PA7 — GPIO PA7 (alt) |
| Контакт 157 | PB0 — GPIO PB0 (alt) |
| Контакт 158 | PB1 — GPIO PB1 (alt) |
| Контакт 159 | PB2 — GPIO PB2 (alt) |
| Контакт 160 | PF12 — GPIO PF12 (alt) |
| Контакт 161 | VSS — Digital ground |
| Контакт 162 | VDD — Digital supply |
| Контакт 163 | PC6 — GPIO PC6 (alt) |
| Контакт 164 | PC7 — GPIO PC7 (alt) |
| Контакт 165 | PC8 — GPIO PC8 (alt) |
| Контакт 166 | PC9 — GPIO PC9 (alt) |
| Контакт 167 | PA8 — GPIO PA8 (alt) |
| Контакт 168 | PA9 — GPIO PA9 (alt) |
| Контакт 169 | PA10 — GPIO PA10 (alt) |
| Контакт 170 | PA11 — GPIO PA11 (alt) |
| Контакт 171 | PA12 — GPIO PA12 (alt) |
| Контакт 172 | PA13 — GPIO PA13 (alt) |
| Контакт 173 | VCAP_3 — VCORE decoupling |
| Контакт 174 | VDD — Digital supply |
| Контакт 175 | PA14 — GPIO PA14 (alt) |
| Контакт 176 | PA15 — GPIO PA15 (alt) |
Типичное применение
STM32H743IGT6 подходит для 7 применениеs: Industrial Motor Control (FOC / PMSM), High-End TFT-LCD HMI Panels, Multi-Axis Robotics and CNC Control, Audio Processing and MIDI Synthesizers, Machine Vision and Image Processing, Drone Flight Controllers, Portable Medical Instrumentation.
Industrial Motor Control (FOC / PMSM)
The STM32H743IGT6 is engineered for high-performance motor control including field-oriented control (FOC) of PMSM and BLDC motors. The 480 MHz Cortex-M7 with double-precision FPU executes the FOC loop in well under 10 microseconds, and the 3x 12-bit ADCs at 3.6 MSPS provide simultaneous current sampling on three shunt resistors without aliasing. The high-resolution timer (HRTIM) with 184 ps resolution drives center-aligned PWM up to 100 kHz. The built-in SMPS reduces BOM cost versus an external LDO, and the cryptographic accelerators are not required for motor-control firmware, making the H743 a cost-optimized choice versus the H753.
Рекомендуется
High-End TFT-LCD HMI Panels
The STM32H743IGT6 drives TFT-LCD panels up to XGA (1024x768) using the integrated LTDC controller, Chrom-ART (DMA2D) 2D accelerator, and on-chip JPEG codec. The 1 MB of AXI SRAM holds a full XGA framebuffer at 16 bpp without external SDRAM, and the 16-bit parallel display interface supports pixel clocks up to 83 MHz for 60 fps refresh. The double-precision FPU accelerates anti-aliased font rendering, and the SDMMC controller boots firmware from a microSD card at 50 MB/s. For HMI panels in industrial equipment, the H743 is widely adopted as the cost-effective sweet spot between the Cortex-M4 STM32F4 line and the more expensive STM32MP1 microprocessor series.
Рекомендуется
Multi-Axis Robotics and CNC Control
The STM32H743IGT6's 480 MHz Cortex-M7 core is well suited to multi-axis robotics including 6-DoF robotic arms, CNC controllers, and pick-and-place machines. The DSP extensions accelerate inverse-kinematics math, the double-precision FPU handles 3D coordinate transforms, and the 16-bit parallel camera interface accepts a vision module for closed-loop position control. With 140 GPIO and 8 USART/UART ports, the H743 can drive up to 8 stepper motors via external drivers, and the 2x CAN interfaces support CANopen or CAN-FD for industrial robot bus protocols. The 1 MB Flash accommodates complex motion-planning firmware without external memory.
Рекомендуется
Audio Processing and MIDI Synthesizers
The STM32H743IGT6's 480 MHz Cortex-M7 with double-precision FPU executes high-quality audio processing including 32-voice polyphonic synthesizers, reverb, and effects at 48 kHz/24-bit. The SAI (Serial Audio Interface) supports I2S/TDM audio codecs up to 192 kHz, the 2x 12-bit DACs provide line-level analog output, and the I2C peripheral controls codec chips. The DSP extensions accelerate FFT-based spectral processing, and the 1 MB SRAM holds multi-second audio buffers without external memory. The 176-LQFP package provides ample GPIO for MIDI DIN-5 in/out and footswitch jacks.
Рекомендуется
Machine Vision and Image Processing
The STM32H743IGT6 supports machine-vision edge nodes with its 16-bit parallel camera interface, hardware JPEG codec, and Chrom-ART (DMA2D) graphics accelerator. The 1 MB of SRAM accommodates a VGA-resolution framebuffer plus edge-detection kernels, and the AXI bus matrix sustains 240 MHz memory bandwidth to keep up with OV5640-class 5 MP sensors. The Cortex-M7 DSP extensions accelerate Sobel and Canny edge-detection filters, while the USB 2.0 OTG streams processed frames to a host. For embedded vision tasks below 30 fps at QVGA, the H743 is competitive with low-end Cortex-A Linux SOMs at much lower power and BOM cost.
Рекомендуется
Drone Flight Controllers
The STM32H743IGT6 has become the de-facto flight-controller reference MCU for high-end racing and cinematic drones running PX4 or ArduPilot. The 480 MHz Cortex-M7 runs the attitude-control loop at 8 kHz, the double-precision FPU handles quaternion math, and the high-resolution timer drives DSHOT/OneShot/ProShot ESC protocols. The 3x ADCs at 3.6 MSPS sample IMU and gyroscope data with low latency, and the USB OTG provides the bootloader for firmware updates. The internal SMPS reduces weight versus an external LDO, and the 176-LQFP package has enough GPIO for GPS, magnetometer, optical-flow, and 4x ESC outputs simultaneously.
Рекомендуется
Portable Medical Instrumentation
The STM32H743IGT6 suits portable medical devices such as patient monitors, infusion pumps, and handheld ultrasound controllers. The 480 MHz Cortex-M7 processes ECG/EEG signal chains, the 3x 12-bit ADCs at 3.6 MSPS provide adequate resolution for biopotential signals, and the AES-256 hardware accelerator (not available on H743 - see H753) secures patient data at rest. The 1 MB Flash stores firmware with built-in self-test (BIST) routines, and the USB OTG connects to PC-based diagnostic software. The -40C to +85C operating temperature range supports both clinical and field-deployment scenarios.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для STM32H743IGT6 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | STM32H753IGT6 | STM32H750IBT6 | STM32H742IGT6 | STM32H733VGT6 | STM32H735IGT6 |
|---|---|---|---|---|---|---|
| Package | 176-LQFP (24x24 mm) | 176-LQFP (24x24) - same | 176-LQFP (24x24) - same | 176-LQFP (24x24) - same | 176-LQFP (24x24) - same | 176-LQFP (24x24) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | Cortex-M7 @ 480 MHz | Cortex-M7 @ 480 MHz | Cortex-M7 @ 480 MHz | Cortex-M7 @ 480 MHz | Cortex-M7 @ 550 MHz | Cortex-M7 @ 550 MHz |
| Flash | 1 MB dual-bank | 2 MB dual-bank | 128 KB (boot from external) | 1 MB dual-bank | 1 MB dual-bank | 1 MB dual-bank |
| SRAM | 1 MB | 1 MB | 864 KB | 1 MB | 564 KB | 564 KB |
| Cryptography | No crypto accelerator | AES, hash, TRNG, SFI | AES, hash, TRNG | No crypto | AES, hash, TRNG | AES, hash, TRNG |
| TrustZone | No | No | No | No | Yes | Yes |
| Internal SMPS | Yes | Yes | Yes | Yes | Yes | Yes |
| Approx Unit Price (qty 1, USD) | 16.20 | 19.50 | 12.80 | 15.40 | 17.60 | 18.90 |
Ключевые отличия
- Industry-leading 480 MHz Cortex-M7 with 2400 CoreMark (против STM32F407VGT6)
- 1 MB Flash and 1 MB SRAM in a single chip (против STM32H750IBT6)
- Cost-optimized without crypto accelerator (против STM32H753IGT6)
- No TrustZone - simpler firmware toolchain (против STM32H733VGT6)
Заметки по проектированию
The STM32H743IGT6 integrates a step-down SMPS to supply VCORE from VDD. According to the ST reference design (AN5031), connect a 4.7 uH inductor between VCORE and the SMPS output pin, plus a 4.7 uF X5R 6.3V ceramic capacitor on each VCAP pin. This configuration typically reduces core current by 30% versus external-LDO supply. If the application is noise-sensitive (audio or ADC), consider bypassing the SMPS and using the internal LDO mode by tying the SMPS_EN pin appropriately.
Place 100 nF X7R 0402 decoupling capacitors within 2 mm of every VDD/VDDA pin, with a shared 10 uF bulk capacitor at the board entry point. The 480 MHz AXI bus requires trace-length matching within 0.5 mm on SDRAM, FMC, and Ethernet RMII lines. Use a 4-layer PCB stackup with dedicated ground and power planes; the LQFP-176 thermal pad (exposed) must be soldered to a copper pour of at least 1 square inch to keep theta_JA below 38 C/W.
Do not skip the BOOT0 strap configuration: pull BOOT0 low via 10 kOhm to VSS for normal boot from internal Flash, or high to VDD for system memory bootloader (used for UART/USB firmware recovery). Configure the unused GPIO banks (especially PG0-PG8 on LQFP-176) to analog input mode to reduce standby current by 5-10 uA per pin. Ensure NRST has a 10 kOhm pull-up and 100 nF capacitor to guarantee clean reset during power ramp.
The Ethernet RMII interface requires 50 MHz reference clock with sub-100 ps jitter; source this clock from the MCU MCO1 or MCO2 output rather than an external oscillator to save BOM cost. For SDRAM, the DQS signal must be length-matched to the data/clock group within 1 mm on a 4-layer PCB. The USB OTG FS D+/D- pair requires 90 ohm differential impedance; do not route over ground-plane splits.
Информация о соответствии
Industrial-grade part (-40C to +85C) per ST datasheet DS12110. Not AEC-Q100 qualified - use STM32H743IIT6Q for automotive. RoHS/REACH compliant per ST product page.
