STM32H745IIT6 vs STM32H755ZIT6 Comparison
Detailed side-by-side comparison of STM32H745IIT6 by STMicroelectronics and STM32H755ZIT6 by STMicroelectronics. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
STMicroelectronics
STM32H745IIT6 - 480MHz Dual-Core M7/M4 MCU, 2MB Flash | ST
STM32H745IIT6 ✓ ActiveSTMicroelectronics
STM32H755ZIT6 - Dual-Core Cortex-M7/M4 MCU, 2MB Flash | STMicroelectronics
STM32H755ZIT6 ✓ ActiveSpecification Comparison
| Parameter | STM32H745IIT6 | STM32H755ZIT6 |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $10.62 | $16.19 |
| Core Architecture | Dual-core Arm Cortex-M7 + Cortex-M4 with FPU | Dual-core Arm Cortex-M7 + Cortex-M4 |
| M7 Maximum Clock Frequency | 480 MHz | — |
| M4 Maximum Clock Frequency | 240 MHz | — |
| Flash Memory | 2 MB (dual-bank, with secure sector) | 2 MB (dual-bank) |
| 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 | — |
| Package | 176-pin LQFP (24x24 mm) | LQFP-144 (20x20 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature Range | -40 °C to +85 °C (industrial grade) | — |
| ADC | 16-bit ADC (3.6 MSPS) + two 12-bit ADCs | 3 x 16-bit, up to 3.6 MSPS |
| DAC | Two 12-bit DACs | 2 x 12-bit |
| 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 | Ethernet, USB OTG HS/FS, 2x CAN FD, 6x SPI, 4x I2C, USART/UART, SDMMC, SAI |
| Timers | Advanced-control, general-purpose, basic, low-power timers (see datasheet for full list) | — |
| MSL Level | 3 (per JEDEC J-STD-020) | 3 (per JEDEC J-STD-020) |
| RoHS Status | Compliant | Compliant |
| Supply Source | Internal SMPS + LDO regulators | — |
| Cortex-M7 Max Frequency | — | 480 MHz |
| Cortex-M4 Max Frequency | — | 240 MHz |
| SRAM | — | 1 MB (DTCM + AXI + SRAM1/2/3) |
| GPIO Count | — | 114 |
| Supply Voltage VDD | — | 1.62 V to 3.6 V |
| Operating Temperature | — | -40 °C to +85 °C (industrial grade) |
| Graphics | — | Chrom-ART Accelerator, LCD-TFT controller, JPEG codec |
| Crypto Accelerators | — | AES, SHA, RSA, TRNG |
| Internal SMPS | — | Yes (step-down for core) |
| Process Node | — | 40 nm CMOS |