STM32F746IET6 vs STM32H745IIT6 对比
详细并排对比 STM32F746IET6 出自 STMicroelectronics 和 STM32H745IIT6 出自 STMicroelectronics。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
规格对比
| 参数 | STM32F746IET6 | STM32H745IIT6 |
|---|---|---|
| 品牌 | STMicroelectronics | STMicroelectronics |
| 分类 | Microcontrollers | Microcontrollers |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $20.55 | $10.62 |
| Product Type | 32-bit ARM Cortex-M7 microcontroller | — |
| CPU Maximum Frequency | 216 MHz | — |
| Architecture | ARM Cortex-M7 with DSP and FPU | — |
| Flash Memory | 512 KB (512K x 8) | 2 MB (dual-bank, with secure sector) |
| RAM | 320 KB | — |
| I/O Count | 140 I/O | — |
| 电源电压 | 1.8 V, 2.5 V, or 3.3 V | — |
| 工作温度 | -40 °C to +85 °C | — |
| 封装 | 176-LQFP, 24 mm x 24 mm | 176-pin LQFP (24x24 mm) |
| 安装类型 | Surface mount | Surface Mount |
| Program Memory Type | Flash | — |
| Processor Core | ARM Cortex-M7 | — |
| DSP Support | DSP with FPU | — |
| Cache | L1 cache | — |
| External Memory Interface | SDRAM | — |
| Display Feature | TFT | — |
| Graphics Feature | Art Accelerator | — |
| Manufacturer | STMicroelectronics | — |
| Core Architecture | — | Dual-core Arm Cortex-M7 + Cortex-M4 with FPU |
| M7 Maximum Clock Frequency | — | 480 MHz |
| M4 Maximum Clock Frequency | — | 240 MHz |
| SRAM (Total) | — | 1 MB (192 KB DTCM/AXI + 64 KB DTCM for M4 + 462 KB system SRAM + 4 KB backup) |
| Operating Voltage Range | — | 1.62 V to 3.6 V |
| 工作温度范围 | — | -40 °C to +85 °C (industrial grade) |
| ADC | — | 16-bit ADC (3.6 MSPS) + two 12-bit ADCs |
| DAC | — | Two 12-bit DACs |
| Graphics Accelerator | — | Chrom-ART (DMA2D) |
| Communication Interfaces | — | USB OTG FS+HS, 2 × CAN FD, Ethernet MAC, SDMMC, 2 × OctoSPI, FMC, USART/UART/SPI/I2C/LPUART |
| Timers | — | Advanced-control, general-purpose, basic, low-power timers (see datasheet for full list) |
| MSL 等级 | — | 3 (per JEDEC J-STD-020) |
| RoHS 状态 | — | Compliant |
| Supply Source | — | Internal SMPS + LDO regulators |