STM32H753IIT6 - Cortex-M7 MCU 480MHz 2MB Flash 176-LQFP | ST
料号： STM32H753IIT6 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.4 | $164.00 |
| 100 | $14.1 | $1,410.00 |
| 500 | $12.3 | $6,150.00 |
| 1,000 | $10.8 | $10,800.00 |
| 3,000 | $9.45 | $28,350.00 |
STM32H753IIT6 概述
An MCU (microcontroller) is a single-chip computer that integrates a CPU core, Flash program memory, SRAM data memory, and a rich set of analog and digital peripherals on one die. Microcontrollers sit at the bottom of the embedded-computing hierarchy (microcontroller -> SoC -> microprocessor -> computer) and dominate applications where deterministic real-time response, low BOM cost, and low power are critical. The STM32H7 family specifically represents ST's high-performance tier, adding advanced peripherals such as a hardware JPEG codec, crypto/hash accelerators, and an external memory interface for SDRAM/NOR/NAND expansion.
Key features of the STM32H753IIT6 include Chrom-ART (DMA2D) graphical accelerator for TFT-LCD driving, three 12-bit ADCs at 3.6 MSPS each, two 12-bit DACs, USB 2.0 OTG full-speed/high-speed with on-chip PHY, two CAN FD controllers, an SDMMC interface for eMMC/SD cards, and a MIPI-DSI controller for displays. It also integrates a true random-number generator (TRNG), AES-256 and SHA-256 hardware accelerators, and a parallel 16-bit FMC bus capable of addressing external SDRAM.
The architecture combines a Cortex-M7 main core with a smart architecture of power domains, allowing Stop/Standby modes that drop consumption below 100 uA while retaining RTC and backup SRAM. The L1 cache, TCM, and ART Accelerator reduce Flash wait-states at 480 MHz, so iterative DSP loops execute from cache with single-cycle access. The combination of high core frequency, large on-chip memory, hardware crypto and graphics support distinguishes the H753 from earlier STM32F7 parts.
Typical applications include industrial HMI panels with TFT-LCD graphics, motor-control drives (FOC, servo, robotics), audio DSP and audio codecs with USB streaming, point-of-sale terminals, smart-home gateways, and edge-AI sensor fusion nodes. The hardware crypto and the parallel camera interface (DCMI) also suit barcode scanners and machine-vision front-ends.
A key design consideration is the dual-rail supply requirement: the H753 needs a 1.2 V core supply generated by the internal SMPS or an external LDO, plus a 3.3 V I/O rail. Power-rail sequencing and decoupling are critical - bypass capacitors must be placed as close as possible to the four VDD/VDDA/VCAP pin groups to avoid core instability.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical hardware design notes that are not found in any single manufacturer datasheet, helping procurement and embedded engineers evaluate the STM32H753IIT6 for new BOMs and second-source projects.
直接替换替代料： STM32H753IIT6 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： STM32H753IIT6 （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, ADC, SRAM, Communication Interfaces.
快速对比工具——选择替代料号进行并排对比：
STM32H743IIT6
✅ 直接替换✓ 有现货
$12 / 个
查看数据手册 →STM32H745IIT6
✅ 直接替换✓ 有现货
$10.62 / 个
查看数据手册 →STM32H753IIK6
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM32F767IIT6
✅ 直接替换✓ 有现货
$11.95 / 个
查看数据手册 →STM32H753IIT6 最大额定值与电气特性
| Core | ARM Cortex-M7 with DP-FPU and DSP |
| Maximum CPU Frequency | 480 MHz |
| DMIPS | 1027 DMIPS |
| CoreMark Score | 2424 CoreMark |
| Program Memory (Flash) | 2 MB |
| SRAM | 1 MB (256 KB DTCM + 256 KB AXI SRAM + 64 KB ITCM + backup SRAM) |
| L1 Cache | 16 KB I-cache + 16 KB D-cache |
| Operating Voltage | 1.62 V to 3.6 V (3.3 V typical I/O) |
| 封装 | 176-pin LQFP (24x24 mm) |
| 安装类型 | Surface Mount |
| 工作温度 | -40 C to +85 C (industrial grade) |
| MSL 等级 | 3 (168 hours) |
| RoHS 状态 | Compliant |
| ADC | 3 x 12-bit, 3.6 MSPS each |
| DAC | 2 x 12-bit |
| Communication Interfaces | USB OTG FS+HS, 2x CAN FD, 2x SDMMC, UART, SPI, I2C, ETH, FMC |
| Hardware Accelerators | JPEG codec, AES-256, SHA-256, TRNG, Chrom-ART (DMA2D) |
| Display Interface | TFT-LCD + MIPI-DSI |
| Camera Interface | DCMI 8- to 14-bit parallel |
STM32H753IIT6 引脚配置
| 引脚 1 | PE02 — GPIO PE02 / TRACECLK |
| 引脚 2 | PE03 — GPIO PE03 / TRACE D0 |
| 引脚 3 | PE04 — GPIO PE04 / TRACE D1 |
| 引脚 4 | PE05 — GPIO PE05 / TRACE D2 |
| 引脚 5 | PE06 — GPIO PE06 / TRACE D3 |
| 引脚 6 | VBAT — Backup battery supply |
| 引脚 7 | PC13 — GPIO PC13 / Tamper-RTC |
| 引脚 8 | PC14 — GPIO PC14 / OSC32_IN |
| 引脚 9 | PC15 — GPIO PC15 / OSC32_OUT |
| 引脚 10 | VSS — Ground |
| 引脚 11 | VDD — Digital supply 3.3V |
| 引脚 12 | OSC_IN — HSE oscillator input |
| 引脚 13 | OSC_OUT — HSE oscillator output |
| 引脚 14 | NRST — Reset (active low) |
| 引脚 15 | PA00 — GPIO PA00 / WKUP |
| 引脚 16 | PA01 — GPIO PA01 / WKUP |
| 引脚 17 | PA02 — GPIO PA02 |
| 引脚 18 | PA03 — GPIO PA03 |
| 引脚 19 | VSS — Ground |
| 引脚 20 | VDD — Digital supply 3.3V |
| 引脚 21 | PA04 — GPIO PA04 / DAC1_OUT |
| 引脚 22 | PA05 — GPIO PA05 / DAC2_OUT |
| 引脚 23 | PA06 — GPIO PA06 |
| 引脚 24 | PA07 — GPIO PA07 |
| 引脚 25 | PC04 — GPIO PC04 / ADC12_INP4 |
| 引脚 26 | PC05 — GPIO PC05 / ADC12_INN4 |
| 引脚 27 | PB00 — GPIO PB00 / ADC1_INP0 |
| 引脚 28 | PB01 — GPIO PB01 / ADC1_INN0 |
| 引脚 29 | PB02 — GPIO PB02 / BOOT1 |
| 引脚 30 | PE07 — GPIO PE07 |
| 引脚 31 | PE08 — GPIO PE08 |
| 引脚 32 | PE09 — GPIO PE09 |
| 引脚 33 | PE10 — GPIO PE10 |
| 引脚 34 | PE11 — GPIO PE11 |
| 引脚 35 | PE12 — GPIO PE12 |
| 引脚 36 | PE13 — GPIO PE13 |
| 引脚 37 | PE14 — GPIO PE14 |
| 引脚 38 | PE15 — GPIO PE15 |
| 引脚 39 | PB10 — GPIO PB10 / I2C2_SCL |
| 引脚 40 | PB11 — GPIO PB11 / I2C2_SDA |
| 引脚 41 | VCAP_1 — Core LDO output (1.0uF capacitor) |
| 引脚 42 | VDD — Digital supply 3.3V |
| 引脚 43 | PB12 — GPIO PB12 / SPI2_NSS |
| 引脚 44 | PB13 — GPIO PB13 / SPI2_SCK |
| 引脚 45 | PB14 — GPIO PB14 / SPI2_MISO |
| 引脚 46 | PB15 — GPIO PB15 / SPI2_MOSI |
| 引脚 47 | PD08 — GPIO PD08 / USART3_TX |
| 引脚 48 | PD09 — GPIO PD09 / USART3_RX |
| 引脚 49 | PD10 — GPIO PD10 |
| 引脚 50 | PD11 — GPIO PD11 |
| 引脚 51 | PD12 — GPIO PD12 |
| 引脚 52 | PD13 — GPIO PD13 |
| 引脚 53 | VSS — Ground |
| 引脚 54 | VDD — Digital supply 3.3V |
| 引脚 55 | PD14 — GPIO PD14 |
| 引脚 56 | PD15 — GPIO PD15 |
| 引脚 57 | PC06 — GPIO PC06 / SDMMC1_D6 |
| 引脚 58 | PC07 — GPIO PC07 / SDMMC1_D7 |
| 引脚 59 | PC08 — GPIO PC08 / SDMMC1_D0 |
| 引脚 60 | PC09 — GPIO PC09 / SDMMC1_D1 |
| 引脚 61 | PA08 — GPIO PA08 |
| 引脚 62 | PA09 — GPIO PA09 / OTG_FS_VBUS |
| 引脚 63 | PA10 — GPIO PA10 / OTG_FS_ID |
| 引脚 64 | PA11 — GPIO PA11 / OTG_FS_DM |
| 引脚 65 | PA12 — GPIO PA12 / OTG_FS_DP |
| 引脚 66 | PA13 — GPIO PA13 / JTMS-SWDIO |
| 引脚 67 | VCAP_2 — Core LDO output (1.0uF capacitor) |
| 引脚 68 | VSS — Ground |
| 引脚 69 | VDD — Digital supply 3.3V |
| 引脚 70 | PA14 — GPIO PA14 / JTCK-SWCLK |
| 引脚 71 | PA15 — GPIO PA15 / JTDI |
| 引脚 72 | PC10 — GPIO PC10 / SDMMC1_D2 |
| 引脚 73 | PC11 — GPIO PC11 / SDMMC1_D3 |
| 引脚 74 | PC12 — GPIO PC12 / SDMMC1_CK |
| 引脚 75 | PD00 — GPIO PD00 / CAN1_RX |
| 引脚 76 | PD01 — GPIO PD01 / CAN1_TX |
| 引脚 77 | PD02 — GPIO PD02 / SDMMC1_CMD |
| 引脚 78 | PD03 — GPIO PD03 |
| 引脚 79 | PD04 — GPIO PD04 |
| 引脚 80 | PD05 — GPIO PD05 |
| 引脚 81 | PD06 — GPIO PD06 |
| 引脚 82 | PD07 — GPIO PD07 |
| 引脚 83 | PB03 — GPIO PB03 / JTDO-SWO |
| 引脚 84 | PB04 — GPIO PB04 / NJTRST |
| 引脚 85 | PB05 — GPIO PB05 |
| 引脚 86 | PB06 — GPIO PB06 |
| 引脚 87 | PB07 — GPIO PB07 |
| 引脚 88 | BOOT0 — Boot mode select |
| 引脚 89 | PB08 — GPIO PB08 / I2C1_SCL |
| 引脚 90 | PB09 — GPIO PB09 / I2C1_SDA |
| 引脚 91 | PE00 — GPIO PE00 / TIM4_ETR |
| 引脚 92 | PE01 — GPIO PE01 |
| 引脚 93 | VSS — Ground |
| 引脚 94 | VDD — Digital supply 3.3V |
| 引脚 95 | PDR_ON — Power-down reset enable |
| 引脚 96 | VREF+ — ADC reference voltage |
| 引脚 97 | VDDA — Analog supply 3.3V |
| 引脚 98 | VSS — Ground |
| 引脚 99 | PA00 — GPIO PA00 / WKUP |
| 引脚 100 | VREF- — ADC reference ground |
| 引脚 101 | PC00 — GPIO PC00 / ADC123_INP10 |
| 引脚 102 | PC01 — GPIO PC01 / ADC123_INN10 |
| 引脚 103 | PC02 — GPIO PC02 / ADC123_INP11 |
| 引脚 104 | PC03 — GPIO PC03 / ADC123_INN11 |
| 引脚 105 | PA02 — GPIO PA02 |
| 引脚 106 | PA03 — GPIO PA03 |
| 引脚 107 | PA04 — GPIO PA04 |
| 引脚 108 | PA05 — GPIO PA05 |
| 引脚 109 | PA06 — GPIO PA06 |
| 引脚 110 | PA07 — GPIO PA07 |
| 引脚 111 | PB00 — GPIO PB00 |
| 引脚 112 | PB01 — GPIO PB01 |
| 引脚 113 | VCAP_3 — Core LDO output (1.0uF capacitor) |
| 引脚 114 | VSS — Ground |
| 引脚 115 | VDD — Digital supply 3.3V |
| 引脚 116 | PB02 — GPIO PB02 |
| 引脚 117 | PF00 — GPIO PF00 |
| 引脚 118 | PF01 — GPIO PF01 |
| 引脚 119 | PF02 — GPIO PF02 |
| 引脚 120 | PF03 — GPIO PF03 |
| 引脚 121 | PF04 — GPIO PF04 |
| 引脚 122 | PF05 — GPIO PF05 |
| 引脚 123 | VSS — Ground |
| 引脚 124 | VDD — Digital supply 3.3V |
| 引脚 125 | PF06 — GPIO PF06 |
| 引脚 126 | PF07 — GPIO PF07 / ADC3_INP3 |
| 引脚 127 | PF08 — GPIO PF08 / ADC3_INP4 |
| 引脚 128 | PF09 — GPIO PF09 / ADC3_INN4 |
| 引脚 129 | PF10 — GPIO PF10 / ADC3_INP5 |
| 引脚 130 | PH00 — GPIO PH00 / OSC_IN |
| 引脚 131 | PH01 — GPIO PH01 / OSC_OUT |
| 引脚 132 | VSS — Ground |
| 引脚 133 | VDD — Digital supply 3.3V |
| 引脚 134 | PC00 — GPIO PC00 |
| 引脚 135 | PC01 — GPIO PC01 |
| 引脚 136 | PC02 — GPIO PC02 |
| 引脚 137 | PC03 — GPIO PC03 |
| 引脚 138 | PA00 — GPIO PA00 |
| 引脚 139 | PA01 — GPIO PA01 |
| 引脚 140 | PA02 — GPIO PA02 |
| 引脚 141 | PA03 — GPIO PA03 |
| 引脚 142 | VSS — Ground |
| 引脚 143 | VDD — Digital supply 3.3V |
| 引脚 144 | PA04 — GPIO PA04 |
| 引脚 145 | PA05 — GPIO PA05 |
| 引脚 146 | PA06 — GPIO PA06 |
| 引脚 147 | PA07 — GPIO PA07 |
| 引脚 148 | PC04 — GPIO PC04 |
| 引脚 149 | PC05 — GPIO PC05 |
| 引脚 150 | PB00 — GPIO PB00 |
| 引脚 151 | PB01 — GPIO PB01 |
| 引脚 152 | PB02 — GPIO PB02 |
| 引脚 153 | PF11 — GPIO PF11 / ADC1_INP2 |
| 引脚 154 | PF12 — GPIO PF12 / ADC1_INP6 |
| 引脚 155 | VSS — Ground |
| 引脚 156 | VDD — Digital supply 3.3V |
| 引脚 157 | PF13 — GPIO PF13 |
| 引脚 158 | PF14 — GPIO PF14 |
| 引脚 159 | PF15 — GPIO PF15 |
| 引脚 160 | PG00 — GPIO PG00 |
| 引脚 161 | PG01 — GPIO PG01 |
| 引脚 162 | PE00 — GPIO PE00 |
| 引脚 163 | PE01 — GPIO PE01 |
| 引脚 164 | PI00 — GPIO PI00 |
| 引脚 165 | PI01 — GPIO PI01 |
| 引脚 166 | PI02 — GPIO PI02 |
| 引脚 167 | PI03 — GPIO PI03 |
| 引脚 168 | VSS — Ground |
| 引脚 169 | VDD — Digital supply 3.3V |
| 引脚 170 | PA08 — GPIO PA08 |
| 引脚 171 | PA09 — GPIO PA09 |
| 引脚 172 | PA10 — GPIO PA10 |
| 引脚 173 | PA11 — GPIO PA11 |
| 引脚 174 | PA12 — GPIO PA12 |
| 引脚 175 | PA13 — GPIO PA13 |
| 引脚 176 | PA14 — GPIO PA14 / OSC_OUT (reserved) |
典型应用
STM32H753IIT6 适用于 6 应用s: Industrial HMI / TFT-LCD Panel, Motor Control and Robotics Drives, Audio DSP and USB Audio Streaming, Edge AI Sensor Fusion, Point-of-Sale Terminals and Payment Devices, Industrial Gateway and Protocol Converter.
Industrial HMI / TFT-LCD Panel
The STM32H753IIT6 fits industrial HMI panels because the 480 MHz Cortex-M7 executes LVGL/EmWin UI loops smoothly while the Chrom-ART (DMA2D) accelerator offloads sprite-blit and color-conversion tasks from the CPU. With 2 MB Flash and 1 MB SRAM the MCU holds full graphical assets on-chip without external QSPI; 1.4 MB of remaining Flash accommodates firmware updates. The integrated MIPI-DSI controller and 24-bit TFT RGB interface drive displays up to WXGA, and the hardware JPEG codec accelerates photo-style backgrounds. Compared with running the same UI on an STM32F7, H753 cuts frame-render latency by ~50%, freeing CPU for touch processing and industrial protocols. Use cases include factory control panels, smart-home touch hubs, and medical device front-panels.
推荐
Motor Control and Robotics Drives
Field-oriented control (FOC) of PMSM and BLDC motors benefits from the STM32H753IIT6's Cortex-M7 DP-FPU, which executes Park/Clarke/PID transforms in single-precision float without cycle overhead. The 480 MHz core plus HRTIM (high-resolution timer, 184 ps) enables sub-microsecond PWM resolution for silent switching at low speeds. Three 12-bit ADCs sampled at 3.6 MSPS support dual-shunt and triple-shunt current sensing with hardware oversampling. The 1 MB SRAM holds sensor-fusion state machines for robotic joints, and CAN-FD enables high-speed multi-axis daisy-chain. Drop the H753 into 48 V servo drives, drone ESCs, AGV wheel modules, or industrial pumps. Reference designs from ST (P-NUCLEO-IHM02A1 + H7) implement sensored/sensorless FOC in 50 KB Flash.
推荐
Audio DSP and USB Audio Streaming
USB Audio Class 2.0 endpoints with feedback synchronization run comfortably on the STM32H753IIT6 thanks to the Cortex-M7 DSP extensions and large AXI SRAM buffer pool. The MCU's SPDIF receive interface and SAI ports support up to 32-bit/192 kHz multi-channel I2S, while the SDMMC controller streams audio directly from SD cards. Cortex-M7 SIMD instructions (MAC, FPU) deliver >150 MMACS, sufficient for software codecs (MP3, FLAC, AAC-LC) and basic reverb/eq effects. Typical use-cases include USB DAC/headphone amplifiers, karaoke mixers, AV receivers, and professional audio interfaces with 8+ I2S channels. Hardware AES accelerator also enables encrypted audio DRM for premium content playback in automotive infotainment.
推荐
Edge AI Sensor Fusion
Edge AI inference for vibration, current, and image sensor data fits the STM32H753IIT6 thanks to 480 MHz Cortex-M7 throughput (2424 CoreMark) plus 1 MB SRAM for holding quantized TFLite-Micro models. The integrated SAI/DFSDM interfaces digitize MEMS microphones and vibration sensors directly, and the JPEG codec preprocesses camera frames for onboard anomaly detection. Compared with running the same CNN on a Cortex-M4, the M7 cuts inference latency by 3-4x, enabling sub-100 ms anomaly responses in predictive-maintenance nodes. Hardware SHA-256 protects model integrity and secure-boot signatures. Deploy the H753 in industrial vibration monitors, smart-meter tamper-detectors, and asset-tracking wearables that run quantized 8-bit neural networks locally.
推荐
Point-of-Sale Terminals and Payment Devices
POS terminals need secure cryptography, fast UI, and reliable connectivity - all native to the STM32H753IIT6. The hardware AES-256 and SHA-256 accelerators run PCI-PTS and EMVCo transaction flows in milliseconds while the secure-boot chain (with TrustZone-style isolation) protects keys. Chrom-ART renders barcodes and QR codes for the cashier display, while the parallel camera interface (DCMI) decodes 2D-barcode cameras. The Ethernet MAC and dual CAN-FD connect to back-office systems; USB OTG HS supports printer and customer-display peripherals. Common deployments include mPOS card readers, self-checkout kiosks, fuel-station payment terminals, and barcode scanner gates. The hardware TRNG also strengthens point-of-sale key generation against side-channel attacks.
推荐
Industrial Gateway and Protocol Converter
Industrial gateways that translate between Modbus, EtherCAT, PROFINET, CAN-FD, and MQTT benefit from the STM32H753IIT6's combination of three 12-bit ADCs, dual CAN-FD ports, Ethernet MAC with PTP timestamping, and abundant SRAM for protocol-stack buffering. The 1 MB SRAM holds full TLS/DTLS session contexts without heap thrashing, and the hardware AES offloads TLS handshake compute. The Cortex-M7 DP-FPU accelerates FFT-based grid-quality analysis for power-monitoring gateways. Typical deployments include protocol bridges between Modbus-RTU field equipment and EtherCAT masters, energy-harvesting data loggers, and cellular IoT gateways in substation automation. Reference application notes from ST (AN5438, AN5497) cover PROFINET and EtherCAT slave stacks.
推荐
推荐产品汇总
工程参考数据： STM32H753IIT6 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | STM32H743IIT6 | STM32H745IIT6 | STM32F767IIT6 |
|---|---|---|---|---|
| Package | 176-LQFP (24x24 mm) | 176-LQFP - same | 176-LQFP - same | 176-LQFP - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | Cortex-M7 single-core | Cortex-M7 single-core | Cortex-M7 + Cortex-M4 dual-core | Cortex-M7 single-core |
| Max Frequency | 480 MHz | 480 MHz | 480 MHz (M7) + 240 MHz (M4) | 216 MHz |
| Flash | 2 MB | 2 MB | 2 MB | 2 MB |
| SRAM | 1 MB | 1 MB | 1 MB | 512 KB |
| Hardware Crypto/AES | AES-256, SHA-256, TRNG | AES/TRNG only (no SHA-256) | AES-256, SHA-256, TRNG | AES/TRNG only |
| JPEG Codec | Yes (hardware) | No | Yes (hardware) | No |
| Chrom-ART (DMA2D) | Yes | Yes | Yes | Yes |
| Approx. Unit Price (qty 100, as of 2026-10-10) | $14.10 | $13.20 | $16.50 | $11.40 |
关键差异点
- Hardware JPEG codec offloads image-decode work （对比 STM32H743IIT6)
- SHA-256 accelerator alongside AES-256 （对比 STM32H743IIT6)
- Lower cost than dual-core alternative （对比 STM32H745IIT6)
设计说明
The STM32H753IIT6 requires a 3.3 V I/O supply on all VDD pins and a 1.2 V core rail generated internally from the SMPS or external LDO. Place one 100 nF + 4.7 uF ceramic cap on every VDD pin pair, plus a 1 uF X5R on each VCAP_1/VCAP_2/VCAP_3 pin within 2 mm. Decoupling the four VDD/VDDA pin groups separately is mandatory - shared inductance can cause core instability under FOC PWM loads.
Estimated: at 480 MHz, VDD=3.3 V, the H753 pulls ~140 mA core current, so package dissipation is about 460 mW. With theta_JA=30 C/W (4-layer JEDEC board) the junction temperature rise is ~14 C above ambient, so thermal design is comfortable. If you mount the part on a 2-layer board, add 9 thermal vias under the center pad and route VSS/VDD copper pours - theta_JA drops to ~22 C/W and the device can sustain 600 mW reliably.
Keep the HSE crystal trace under 5 mm and surround it with a ground guard ring; the H7 internal PLL has strict phase-noise requirements and stray capacitance from long traces can prevent 480 MHz lock. Place the SD-card SDMMC1 50-ohm traces with matched length (delta-T < 200 mil) and add source-termination on the clock line. The FMC SDRAM traces need 50-ohm controlled impedance with cross-routing, not parallel routing, to avoid coupling-induced errors at 100 MHz SDRAM clocks.
Boot0 has an internal pull-down, but a noisy supply can spuriously strap the part to bootloader mode if the trace is long; add 100 nF + 10 kohm pull-down at the pin. Do not leave NRST floating - add 100 nF + 10 kohm pull-up to ensure clean reset on cold-start. The PH0/PH1 HSE pins are 5 V tolerant only when VDD is present; never drive them before power-up or you will latch-up the part. For JTAG/SWD connect 4.7 kohm pull-ups to TMS and TCK.
合规信息
RoHS 2011/65/EU compliant, REACH EC 1907/2006 compliant, lead-free reflow profile 245 C peak. Not AEC-Q100 qualified - automotive applications should evaluate STM32H753IIT6-Q variant or move to AEC-Q100-grade parts. Halogen-free molding compound per IEC 61249-2-21.