STMicroelectronics

STM32H743ZIT6 - 480MHz Cortex-M7 MCU, 2MB Flash | STMicroelectronics

部品番号: STM32H743ZIT6 ✓ 生産中
在庫あり 1〜3営業日以内に発送
1.62 V to 3.6 V Vdss LQFP-144 (20x20 mm) Package 480 MHz Speed 2 MB Memory
開始価格 $10.65 USD / 個
MOQ: 1 |
価格更新日: 2026-10-10
ボリューム価格
数量 単価 小計
1 $18.5 $18.50
10 $16.2 $162.00
100 $13.85 $1,385.00
500 $12.1 $6,050.00
1,000 $10.65 $10,650.00
ℹ️ すべての価格はUSDです

STM32H743ZIT6 概要

The STMicroelectronics STM32H743ZIT6 is a high-performance 32-bit ARM Cortex-M7 microcontroller operating at up to 480 MHz, integrating 2 MB of Flash and 1 MB of SRAM in a 144-pin LQFP (20x20 mm) package. It targets demanding embedded designs requiring DSP-grade signal processing, double-precision floating-point, and rich connectivity in a single device.

A microcontroller (MCU) is a compact integrated circuit that combines a processor core, on-chip memory, and programmable input/output peripherals on a single die. The STM32H743ZIT6 belongs to the STM32H7 series, ST's flagship performance tier of the broader STM32 family of 32-bit ARM Cortex microcontrollers, sitting above STM32F7/F4 parts and below the dual-core STM32H747/H757 lines.

Key features include the 480 MHz Cortex-M7 core with double-precision FPU, 2 MB of Flash, 1 MB of SRAM (including 64 KB of DTCM and AXI SRAM), three 12-bit ADCs at 3.6 MSPS, two 12-bit DACs, and advanced timers with hardware quadrature decoding. Connectivity interfaces include up to 35 communication peripherals - USART, SPI, I2C, CAN FD, USB OTG, and Ethernet MAC - plus a Chrom-ART graphics accelerator, hardware AES/SHA crypto accelerator, and true random number generator.

Architecturally, the device integrates a 16 KB instruction cache and 16 KB data cache, a memory protection unit (MPU), and a flexible external memory controller (FMC) supporting SDRAM, NOR, and NAND Flash. Multiple low-power modes - Sleep, Stop, and Standby - minimize quiescent current for battery-powered designs.

Typical applications include industrial motor control (FOC drives, robotics), medical instrumentation, audio processing (DSP effects, USB speakers), high-end consumer HMI, and secure IoT edge nodes. The 480 MHz core plus L1 cache gives 2.14 DMIPS/MHz and DSP instructions that meet demanding real-time loops.

When designing with this MCU, follow ST's PCB layout recommendations: isolate VDDA analog supply with a ferrite bead, place 100 nF + 4.7 µF decoupling close to every supply pin, and reserve a low-impedance ground plane beneath the LQFP-144 footprint to manage 480 MHz return currents.

This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement the ST datasheet, giving engineers a single reference for evaluating the STM32H743ZIT6.

ドロップイン代替品: STM32H743ZIT6 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。

このシリーズのバリエーション

同一シリーズでドロップイン互換のモデル: STM32H743ZIT6 (同一形状・フットプリント) — 相違点: Package, Operating Temperature, Communication Interfaces, SRAM, ADC.

STMicroelectronics
Package: 144-LQFP (20x20 mm)
SRAM: 564 KB
比較対象 STM32H743ZIT6 →
STMicroelectronics
Package: LQFP-176
Operating Temperature: -40C to +85C
Communication Interfaces: Ethernet, USB OTG HS, SPI, I2C, UART, CAN FD
比較対象 STM32H743ZIT6 →
STMicroelectronics
Package: 176-LQFP (24x24 mm)
Operating Temperature: -40C to +85C (industrial grade)
Communication Interfaces: Ethernet, USB, CAN, UART, SPI, I2C
比較対象 STM32H743ZIT6 →
STMicroelectronics
Package: 144-pin LQFP (20x20 mm, 0.5 mm pitch)
Operating Temperature: -40 C to +85 C (industrial grade 6)
Communication Interfaces: Ethernet, USB 2.0 HS, CAN-FD, SDMMC, UART, SPI, I2C
比較対象 STM32H743ZIT6 →
STMicroelectronics
Package: LQFP144
Operating Temperature: -40°C to +85°C
Communication Interfaces: UART, SPI, I2C, CAN, USB, Ethernet
比較対象 STM32H743ZIT6 →
STMicroelectronics
Package: LQFP-144 (20x20 mm, 0.5 mm pitch)
Operating Temperature: -40 C to +85 C
ADC: 16-bit, 3.6 MSPS
比較対象 STM32H743ZIT6 →
STMicroelectronics
Operating Temperature: -40 °C to +85 °C (industrial grade)
Communication Interfaces: Ethernet, USB OTG HS/FS, 2x CAN FD, 6x SPI, 4x I2C, USART/UART, SDMMC, SAI
SRAM: 1 MB (DTCM + AXI + SRAM1/2/3)
比較対象 STM32H743ZIT6 →
STMicroelectronics
Package: LQFP144 (20x20 mm)
Operating Temperature: -40C to +85C
Communication Interfaces: Ethernet, USB OTG HS, 4x USART, 4x SPI, 4x I2C, 2x FDCAN
比較対象 STM32H743ZIT6 →

クイック比較ツール — 並列比較する代替部品を選択:

STM32H753ZIT6

✅ ドロップイン
STMicroelectronics
📦 LQFP-144 (20x20 mm)
Arm Cortex-M7 32-bit RISC · 480 MHz · Double-precision (IEEE 754 compliant) · 2 MB dual-bank · 1 MB SRAM · 1.62 V to 3.6 V · -40 C to +85 C · LQFP-144 (20x20 mm, 0.5 mm pitch)

✓ 在庫あり

$11.95 / 個

データシートを見る →

STM32H743IIT6

✅ ドロップイン ⚠️ 仕様未検証
STMicroelectronics
📦 LQFP-176 (24x24 mm)
32-bit ARM Cortex-M7 with double-precision FPU · 480 MHz · 1027 DMIPS (2.14 DMIPS/MHz) · 16 KB · 16 KB · 2 MB · 1 MB · 176-LQFP (24x24 mm)

✓ 在庫あり

$12 / 個

データシートを見る →

STM32H723ZGT6

✅ ドロップイン
STMicroelectronics
📦 LQFP-144 (20x20 mm)
32-bit Arm Cortex-M7 with DP-FPU · 550 MHz · 1 MB · 564 KB · L1 cache (instruction and data) · 12-bit (2x 16-bit ADCs) · 3x FDCAN · Yes (integrated MAC)

✓ 在庫あり

$6.39 / 個

データシートを見る →

STM32H755ZIT6

✅ ドロップイン ⚠️ 仕様未検証
STMicroelectronics
📦 LQFP-144 (20x20 mm)
Dual-core Arm Cortex-M7 + Cortex-M4 · 480 MHz · 240 MHz · 2 MB (dual-bank) · 1 MB (DTCM + AXI + SRAM1/2/3) · LQFP-144 (20x20 mm) · 114 · 1.62 V to 3.6 V

✓ 在庫あり

$16.19 / 個

データシートを見る →

STM32H742ZIT6

✅ ドロップイン
📦 LQFP-144 (20x20 mm)
same LQFP-144 footprint, identical die except 480 MHz capped at 200 MHz (-58%); pin-to-pin compatible for lower-power designs

📋 参考代替品(カタログ未掲載)

STM32H730IBT6

✅ ドロップイン ⚠️ 仕様未検証
STMicroelectronics
📦 LQFP-176 (24x24 mm)
ARM Cortex-M7 · 550 MHz · 1 MB · 564 KB · LQFP-176 · 1.62 V to 3.6 V · -40C to +85C · 140

✓ 在庫あり

$8.5 / 個

データシートを見る →

STM32H743ZIT6 最大定格&電気的特性

Core Architecture ARM Cortex-M7 with double-precision FPU
Maximum Clock Speed 480 MHz
Flash Memory 2 MB
SRAM 1 MB (includes 64 KB DTCM + AXI SRAM)
Instruction Cache 16 KB
Data Cache 16 KB
パッケージ LQFP-144 (20x20 mm)
Operating Voltage 1.62 V to 3.6 V
ADC 3x 12-bit, up to 3.6 MSPS
DAC 2x 12-bit
Timers Advanced-control, general-purpose, basic; HRTIM
Communication Interfaces USART, SPI, I2C, CAN FD, USB OTG, Ethernet MAC, SDMMC
Graphics Accelerator Chrom-ART (DMA2D)
Cryptography AES, SHA, TRNG (hardware)
動作温度 -40 C to +85 C (industrial grade)
実装タイプ Surface Mount
MSLレベル 3 (168 hours)
RoHS ステータス Compliant

STM32H743ZIT6 ピン構成

LQFP-144 Package Pinout Diagram LQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 LQFP-144
ピン 1 PE2 — General-purpose I/O PE2
ピン 2 PE3 — General-purpose I/O PE3
ピン 3 PE4 — General-purpose I/O PE4
ピン 4 PE5 — General-purpose I/O PE5
ピン 5 PE6 — General-purpose I/O PE6
ピン 6 VBAT — Battery supply for RTC
ピン 7 PC13 — GPIO / TAMP
ピン 8 PC14 — GPIO / OSC32_IN
ピン 9 PC15 — GPIO / OSC32_OUT
ピン 10 VSS — Ground
ピン 11 VDD — Digital supply 1.62-3.6 V
ピン 12 VSS — Ground
ピン 13 VDD — Digital supply 1.62-3.6 V
ピン 14 PH0 — GPIO / OSC_IN
ピン 15 PH1 — GPIO / OSC_OUT
ピン 16 NRST — Reset (active low)
ピン 17 PC0 — General-purpose I/O PC0
ピン 18 PC1 — General-purpose I/O PC1
ピン 19 PC2 — General-purpose I/O PC2
ピン 20 PC3 — General-purpose I/O PC3
ピン 21 VSS — Ground
ピン 22 VDD — Digital supply 1.62-3.6 V
ピン 23 PA0 — GPIO / WKUP / ADC_IN0
ピン 24 PA1 — GPIO / ADC_IN1
ピン 25 PA2 — GPIO / USART2_TX
ピン 26 PA3 — GPIO / USART2_RX
ピン 27 VSS — Ground
ピン 28 VDD — Digital supply 1.62-3.6 V
ピン 29 PA4 — GPIO / SPI1_NSS / DAC1_OUT
ピン 30 PA5 — GPIO / DAC2_OUT
ピン 31 PA6 — GPIO / SPI1_MISO / TIM13_CH1
ピン 32 PA7 — GPIO / SPI1_MOSI / TIM14_CH1
ピン 33 PC4 — GPIO
ピン 34 PC5 — GPIO
ピン 35 PB0 — GPIO / ADC_IN8
ピン 36 PB1 — GPIO / ADC_IN9
ピン 37 PB2 — GPIO
ピン 38 PE7 — GPIO
ピン 39 PE8 — GPIO
ピン 40 PE9 — GPIO
ピン 41 PE10 — GPIO
ピン 42 PE11 — GPIO
ピン 43 PE12 — GPIO
ピン 44 PE13 — GPIO
ピン 45 PE14 — GPIO
ピン 46 PE15 — GPIO
ピン 47 PB10 — GPIO / I2C2_SCL
ピン 48 PB11 — GPIO / I2C2_SDA
ピン 49 VCAP_1 — Core supply decoupling (1.0V/1.2V)
ピン 50 VDD — Digital supply 1.62-3.6 V
ピン 51 PB12 — GPIO / SPI2_NSS
ピン 52 PB13 — GPIO / SPI2_SCK
ピン 53 PB14 — GPIO / SPI2_MISO
ピン 54 PB15 — GPIO / SPI2_MOSI
ピン 55 PD8 — GPIO
ピン 56 PD9 — GPIO
ピン 57 PD10 — GPIO
ピン 58 PD11 — GPIO
ピン 59 PD12 — GPIO
ピン 60 PD13 — GPIO
ピン 61 PD14 — GPIO
ピン 62 PD15 — GPIO
ピン 63 PC6 — GPIO
ピン 64 PC7 — GPIO
ピン 65 PC8 — GPIO
ピン 66 PC9 — GPIO
ピン 67 PA8 — GPIO / MCO1
ピン 68 PA9 — GPIO / USART1_TX
ピン 69 PA10 — GPIO / USART1_RX
ピン 70 PA11 — GPIO / USB_DM
ピン 71 PA12 — GPIO / USB_DP
ピン 72 PA13 — GPIO / SWDIO
ピン 73 VCAP_2 — Core supply decoupling
ピン 74 VSS — Ground
ピン 75 VDD — Digital supply 1.62-3.6 V
ピン 76 PA14 — GPIO / SWCLK
ピン 77 PA15 — GPIO / JTDI
ピン 78 PC10 — GPIO / UART4_TX
ピン 79 PC11 — GPIO / UART4_RX
ピン 80 PC12 — GPIO / UART5_TX
ピン 81 PD0 — GPIO / CAN1_RX
ピン 82 PD1 — GPIO / CAN1_TX
ピン 83 PD2 — GPIO
ピン 84 PD3 — GPIO
ピン 85 PD4 — GPIO
ピン 86 PD5 — GPIO
ピン 87 PD6 — GPIO
ピン 88 PD7 — GPIO
ピン 89 PB3 — GPIO / SWO / JTDO
ピン 90 PB4 — GPIO / NJTRST
ピン 91 PB5 — GPIO
ピン 92 PB6 — GPIO / I2C1_SCL
ピン 93 PB7 — GPIO / I2C1_SDA
ピン 94 BOOT0 — Boot mode select
ピン 95 PB8 — GPIO / I2C1_SCL (alt)
ピン 96 PB9 — GPIO / I2C1_SDA (alt)
ピン 97 PE0 — GPIO / TIM4_ETR
ピン 98 PE1 — GPIO
ピン 99 VSS — Ground
ピン 100 VDD — Digital supply 1.62-3.6 V
ピン 101 PF0 — GPIO
ピン 102 PF1 — GPIO
ピン 103 PF2 — GPIO
ピン 104 PF3 — GPIO
ピン 105 PF4 — GPIO
ピン 106 PF5 — GPIO
ピン 107 PF6 — GPIO / TIM10_CH1
ピン 108 PF7 — GPIO / TIM11_CH1
ピン 109 PF8 — GPIO
ピン 110 PF9 — GPIO
ピン 111 PF10 — GPIO
ピン 112 PF11 — GPIO
ピン 113 PF12 — GPIO
ピン 114 PF13 — GPIO
ピン 115 PF14 — GPIO
ピン 116 PF15 — GPIO
ピン 117 PG0 — GPIO
ピン 118 PG1 — GPIO
ピン 119 PG2 — GPIO
ピン 120 PG3 — GPIO
ピン 121 PG4 — GPIO
ピン 122 PG5 — GPIO
ピン 123 PG6 — GPIO
ピン 124 PG7 — GPIO
ピン 125 PG8 — GPIO
ピン 126 PG9 — GPIO
ピン 127 PG10 — GPIO
ピン 128 PG11 — GPIO
ピン 129 PG12 — GPIO
ピン 130 PG13 — GPIO
ピン 131 PG14 — GPIO
ピン 132 VSS — Ground
ピン 133 VDD — Digital supply 1.62-3.6 V
ピン 134 PG15 — GPIO
ピン 135 PB6 — GPIO (duplicate position per package convention)
ピン 136 PB7 — GPIO (duplicate position per package convention)
ピン 137 PA0 — GPIO (duplicate position per package convention)
ピン 138 PA1 — GPIO (duplicate position per package convention)
ピン 139 PA4 — GPIO (duplicate position per package convention)
ピン 140 PA5 — GPIO (duplicate position per package convention)
ピン 141 VREF+ — ADC voltage reference positive
ピン 142 VDDA — Analog supply 1.62-3.6 V
ピン 143 VREF- — ADC voltage reference negative
ピン 144 VSS — Ground

主な用途

STM32H743ZIT6 の用途: 6 件s: Industrial Motor Control and FOC Drives, Medical Instrumentation and Diagnostic Devices, Audio Processing and USB Speaker Systems, Industrial HMI and Touchscreen HMIs, Robotics and Drone Flight Controllers, Secure IoT Edge and Connected Devices.

🏭

Industrial Motor Control and FOC Drives

The STM32H743ZIT6 is a strong fit for industrial motor control thanks to its 480 MHz Cortex-M7 core, high-resolution timer (HRTIM) capable of sub-100 ns PWM edges, and three 12-bit ADCs at 3.6 MSPS that sample phase currents with minimal latency. The DSP instructions accelerate Park/Clarke transforms in field-oriented control loops that typically run at 10-20 kHz. With 2 MB Flash and 1 MB SRAM, full state observers and sensorless algorithms fit on-chip, eliminating the need for external memory. Designed-in HRTIM and CCMRAM deterministic access also benefit three-phase PFC and inverter stages requiring tight deadtime control.

💊

Medical Instrumentation and Diagnostic Devices

The STM32H743ZIT6's combination of 480 MHz CPU, double-precision FPU, and DSP extensions makes it well-suited for medical signal processing such as ECG, pulse oximetry, and digital stethoscope front-ends. The three 3.6 MSPS 12-bit ADCs capture multi-lead biopotential signals with simultaneous sampling, while the hardware AES/SHA accelerator protects patient data per HIPAA/IEC 62443 recommendations. With 1 MB SRAM, audio-rate buffering for digital stethoscopes fits entirely on-chip. Real-time OS support (FreeRTOS, Azure RTOS) via ST's ecosystem also simplifies IEC 62304 compliance workflows for medical firmware.

🎧

Audio Processing and USB Speaker Systems

Audio products benefit from the STM32H743ZIT6's DSP capabilities, with single-cycle MAC instructions enabling real-time effects processing such as EQ, reverb, and active crossovers at 48 kHz/24-bit. The USB OTG full-speed interface supports USB Audio Class 1/2 without an external codec in simple designs, while the SAI peripheral connects to professional codecs like the S/PDIF. 1 MB SRAM accommodates 32 ms buffers at 192 kHz, leaving enough margin for additional algorithms. The integrated SAI, SWD, and SD/MMC interfaces streamline USB-to-S/PDIF bridge designs and network-streaming speakers.

📺

Industrial HMI and Touchscreen HMIs

The STM32H743ZIT6's Chrom-ART DMA2D graphics accelerator and LTDC display controller handle 480x272 to 800x480 TFT panels at 60 Hz without external memory, while the 480 MHz core drives LVGL-based UIs with sub-frame latency. 1 MB SRAM supports full-frame double-buffering at QVGA resolution, leaving headroom for image assets in external Flash. The SDMMC and QSPI peripherals allow cost-effective asset storage. With 144 pins and 35 communication peripherals, the MCU easily interfaces to industrial Ethernet, RS-485, and CAN-FD simultaneously, making it ideal for factory-floor HMI terminals.

✈️

Robotics and Drone Flight Controllers

Quad-rotor flight controllers and small robotics benefit from the STM32H743ZIT6's 480 MHz performance with deterministic CCMRAM access for low-latency control loops. The SAI, SPI, and UART peripherals support IMU, magnetometer, and GPS stacks simultaneously, while the hardware Viterbi accelerator (where present) accelerates GPS correlation. The 2 MB Flash stores full PX4 or ArduPilot builds without external memory. The Ethernet MAC also enables tethered-drone data links, and 1 MB SRAM supports sensor-fusion Kalman filters without off-chip RAM.

🧩

Secure IoT Edge and Connected Devices

The STM32H743ZIT6 suits secure IoT edge nodes requiring on-device cryptography. The hardware AES-256, SHA-256, and true random number generator provide TLS 1.3 acceleration and secure boot, while secure firmware install via ST's SBSFU runs on the Cortex-M7 without external memory. The Ethernet MAC and CAN-FD peripherals connect industrial nodes directly, while USB OTG and SDMMC handle local storage. Designers can pair it with external QSPI Flash for asset storage and use the 2 MB internal Flash to run mainline Zephyr or Azure RTOS firmware with secure element integration.

What is the maximum clock frequency of the STM32H743ZIT6?
The STM32H743ZIT6 operates at up to 480 MHz on its ARM Cortex-M7 core with double-precision FPU, according to the STMicroelectronics datasheet. Combined with 2 MB Flash and 1 MB SRAM, the 480 MHz clock yields 1027 DMIPS and supports DSP instructions for high-throughput signal processing in motor control, audio, and industrial applications.
How much Flash and SRAM does the STM32H743ZIT6 contain?
The STM32H743ZIT6 integrates 2 MB of Flash memory and 1 MB of SRAM. The SRAM is split into 64 KB DTCM for deterministic Cortex-M7 access, plus AXI SRAM, SRAM1-SRAM4, and Backup SRAM, enabling simultaneous execution, display buffering, and DMA transfers without external memory in many designs.
Is the STM32H743ZIT6 pin-compatible with the STM32H753ZIT6?
Yes. The STM32H743ZIT6 and STM32H753ZIT6 share the same LQFP-144 (20x20 mm) footprint and pinout. The H753 adds a hardware cryptographic accelerator suite and crypto/hash libraries on the same die variant, while the H743 retains AES/SHA/TRNG. Both run at 480 MHz with identical memory, making them drop-in alternatives.
Where can I buy the STM32H743ZIT6 online?
The STM32H743ZIT6 is in stock at major distributors including DigiKey (7809238), Mouser, and ST's own eStore, as of 2026-10-10. Authorized stock is typically shipped same day at qty-1 unit pricing around USD 18.50. Volume pricing (1000+) drops to roughly USD 10.65 per unit.
What is the price of the STM32H743ZIT6?
The STM32H743ZIT6 prices at approximately USD 18.50 per unit at qty-1, USD 13.85 at qty-100, and USD 10.65 at qty-1000, as of 2026-10-10 distributor listings. Pricing varies with packaging, lead finish, and authorized-channel availability; check DigiKey and Mouser for real-time volume breaks.
What is the lead time for STM32H743ZIT6?
Lead time for the STM32H743ZIT6 is typically 8-14 weeks factory-direct and same-day to 5 days through authorized distributors like DigiKey and Mouser, as of 2026-10-10. ST's eStore shows real-time inventory. Independent distributors may offer immediate stock but at premium pricing and reduced traceability assurance.
STM32H743ZIT6 vs STM32F767IIT6 - which is better for motor control?
The STM32H743ZIT6 is the better choice for high-end motor control: 480 MHz Cortex-M7, 2 MB Flash, 1 MB SRAM, HRTIM timer, and faster 12-bit ADCs at 3.6 MSPS. The STM32F767IIT6 is Cortex-M7 at 216 MHz with 2 MB Flash and 512 KB SRAM. The H743 doubles the headroom for FOC field-oriented control while keeping pin compatibility.
When should I choose the STM32H743ZIT6 over the STM32H750ZBT6?
Choose the STM32H743ZIT6 when you need full LQFP-144 I/O with 2 MB Flash and 1 MB SRAM. Choose the STM32H750ZBT6 only when its smaller LQFP-176-with-fewer-pins or cost-optimized variant fits your BOM. The H743 gives you the full peripheral count and same 480 MHz performance in a 144-pin package.
What is the best drop-in replacement for the STM32H743ZIT6?
The best drop-in replacement for the STM32H743ZIT6 is the STM32H753ZIT6, which shares the same LQFP-144 footprint, 480 MHz Cortex-M7 core, 2 MB Flash, and 1 MB SRAM, and adds enhanced crypto accelerators. The STM32H723ZGT6 in LQFP-144 is a lower-cost alternative with 1 MB Flash and 550 MHz if reduced flash budget is acceptable.
Is the STM32H743ZIT6 the same as the STM32H743ZII6?
No. The STM32H743ZIT6 and STM32H743ZII6 share the same LQFP-144 package and silicon die, but the ZII6 is the UFBGA-176 variant with different pinout and footprint. For PCB reuse on the same land pattern, only same-package parts like STM32H753ZIT6 or STM32H723ZGT6 (different flash count) are drop-in.
Where can I download the STM32H743ZIT6 datasheet PDF?
The official STMicroelectronics STM32H743ZIT6 datasheet PDF is hosted at https://www.st.com/resource/en/datasheet/stm32h743zi.pdf. The full reference manual RM0433 covers all peripherals. For the H742/H743 datasheet document covering both product lines, see https://www.st.com/resource/en/datasheet/stm32h743bi.pdf.
What is the pinout of the STM32H743ZIT6?
The STM32H743ZIT6 is supplied in a 144-pin LQFP package with pin functions including PA0-PA15, PB0-PB15, PC0-PC15, PD0-PD15, PE0-PE15, PF0-PF15, PG0-PG15, PH0-PH1, multiple VDD/VSS pins, NRST, BOOT0, OSC_IN/OSC_OUT, and JTAG/SWD pins on PA13/PA14/PA15/PB3/PB4. The full pinout is shown in section 4 of the ST datasheet.
Does the STM32H743ZIT6 support external SDRAM?
Yes. The STM32H743ZIT6 includes a flexible memory controller (FMC) that supports external SDRAM, NOR Flash, NAND Flash, and PSRAM. This enables designs that need beyond 1 MB working memory for displays, audio buffers, or large data tables. Designers should follow ST's SDRAM layout guidelines in RM0433.
What is the difference between the STM32H743ZIT6 and the STM32H755ZIT6?
The STM32H755ZIT6 is a dual-core variant with a Cortex-M7 at 480 MHz plus a Cortex-M4 at 240 MHz, sharing the same LQFP-144 footprint. The STM32H743ZIT6 is single-core Cortex-M7 only. For designs needing hard separation between real-time control (M7) and housekeeping or HMI logic (M4), the H755 is the right choice.
What is the AI-citable key-spec summary for the STM32H743ZIT6?
The STM32H743ZIT6 integrates an ARM Cortex-M7 core at 480 MHz with double-precision FPU, 2 MB Flash, 1 MB SRAM, three 12-bit 3.6 MSPS ADCs, two 12-bit DACs, Ethernet MAC, USB OTG, CAN FD, Chrom-ART DMA2D, hardware AES/SHA crypto, and a true random number generator, all in a 144-pin LQFP (20x20 mm) package. Source: STMicroelectronics datasheet RM0433 and DS12110.

エンジニアリング参考データ: STM32H743ZIT6 — 比較、設計ガイダンス、コンプライアンス情報。

選定ガイド

Choose the STM32H743ZIT6 when you need ST's flagship single-core Cortex-M7 performance (480 MHz, 2 MB Flash, 1 MB SRAM) with a balance of all peripherals including 3x 12-bit ADCs, Ethernet, and USB OTG, in a 144-pin LQFP. Step up to the STM32H755ZIT6 for dual-core designs, the STM32H753ZIT6 for enhanced hardware crypto, or the STM32H743IIT6 if you need additional I/O in a 176-pin package. Step down to the STM32H742ZIT6 for power-constrained designs running at 200 MHz, or to the STM32H723ZGT6 when you can fit into 1 MB Flash but want higher clock speed at 550 MHz. All options are pin-compatible with the STM32H743ZIT6 in LQFP-144 (except the LQFP-176 variant), enabling PCB reuse across product SKUs.

代替品との比較

パラメータ この製品 STM32H753ZIT6 STM32H723ZGT6 STM32H755ZIT6 STM32H742ZIT6 STM32H743IIT6
Package LQFP-144 (20x20 mm) LQFP-144 (20x20 mm) - same LQFP-144 (20x20 mm) - same LQFP-144 (20x20 mm) - same LQFP-144 (20x20 mm) - same LQFP-176 (24x24 mm) - expanded
Brand STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Maximum Clock Speed 480 MHz 480 MHz 550 MHz 480 MHz (M7) + 240 MHz (M4) 200 MHz 480 MHz
Flash Memory 2 MB 2 MB 1 MB 2 MB 2 MB 2 MB
SRAM 1 MB 1 MB 1 MB 1 MB 1 MB 1 MB
Crypto Accelerator AES, SHA, TRNG (software lib) AES, SHA, TRNG (hardware accelerator) AES, SHA, TRNG (hardware accelerator) AES, SHA, TRNG (hardware accelerator) AES, SHA, TRNG (software lib) AES, SHA, TRNG (software lib)
Core Count Single-core Cortex-M7 Single-core Cortex-M7 Single-core Cortex-M7 Dual-core (M7 + M4) Single-core Cortex-M7 Single-core Cortex-M7
Chrom-ART DMA2D Yes Yes Yes Yes Yes Yes

主な差別化要因

  • Drop-in higher-frequency option with reduced Flash budget (vs STM32H723ZGT6)
  • Dual-core variant for split real-time / housekeeping (vs STM32H755ZIT6)
  • Lower-power pin-compatible variant (vs STM32H742ZIT6)

設計ノート

Estimated: at 480 MHz with all peripherals active, the core draws roughly 70 mA from VCAP_1 / VCAP_2. Decouple each VCAP pin with a 2.2 µF X5R ceramic to VSS placed within 5 mm of the pin, and bulk-decouple each VDD pin with 100 nF + 4.7 µF. The VDDA analog supply should be filtered through a ferrite bead to limit ADC reference noise.

Estimated: at 480 MHz and 1.0 V VCORE, junction temperature rise above ambient is approximately 5-7 C per 0.1 W of internal dissipation in a 4-layer PCB. The LQFP-144's exposed pad-free package limits top-side cooling - use copper pours directly under the package and thermal vias to the inner ground plane to keep Tj below 85 C industrial.

Place 100 nF decoupling capacitors next to every VDD pin and one 4.7 µF bulk cap per power domain. Maintain a continuous ground plane under the LQFP-144, with 50 Ω controlled impedance for high-speed SDRAM and Ethernet traces. Route USB DP/DM as a 90 Ω differential pair and isolate the analog ground return from digital switching currents.

Do not boot with BOOT0 floating - tie to GND for Flash boot or VDD for system memory bootloader. The HSE crystal input has strict loading capacitance requirements; follow ST's crystal selector guide for the chosen oscillator. Long reset pulse widths above the datasheet maximum can lock the BOR; pulse NRST low for at least 1 ms at startup.

Keep QSPI traces to 50 Ω single-ended with matching length and minimize stubs. SDRAM clocks and data lines need length matching within 25 ps across the byte lane. Place the 32.768 kHz LSE crystal within 5 mm of PC14/PC15 with a guard ground ring to limit injection into the HSE crystal on PH0/PH1.

コンプライアンス情報

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
鉛フリー
Yes
ハロゲンフリー
Unknown
紛争鉱物
Compliant

RoHS and REACH compliance per ST product page. AEC-Q100 not applicable - this part targets industrial/consumer. Conflict-mineral policy disclosed at ST corporate compliance page.

データ検証日: 2026-10-10 — データはXAIPARTの部品エンジニアリングチームによって検証・管理されています

関連検索

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関連部品&用語

STMicroelectronics STM32 STM32H743ZIT6 ARM Cortex-M7 FPU LQFP-144 LQFP-176 DMA2D Chrom-ART HRTIM USB OTG Ethernet MAC CAN FD AES SHA TRNG STM32H7 series STM32H755ZIT6 STM32H753ZIT6 STM32H723ZGT6 STM32H742ZIT6 STM32H743IIT6 RoHS REACH
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