Product Overview
The STM32H745ZIT6 is a high-performance 32-bit microcontroller from STMicroelectronics, featuring Dual-core: ARM Cortex-M7 (480MHz) + Cortex-M4 (240MHz) with DP-FPU. The device integrates 2 MB (dual bank, read-while-write, ECC) of Flash memory and 1 MB (192KB TCM + 864KB user SRAM + 4KB backup) of SRAM, providing extensive memory resources for demanding embedded applications. This dual-core architecture combines the high-performance Cortex-M7 for complex applications with a Cortex-M4 for real-time peripheral handling, enabling efficient task partitioning. Housed in a LQFP-144 package with Up to 168 (up to 164 5V-tolerant, up to 133 MHz fast I/Os) I/O pins, this MCU offers an exceptional combination of processing power, peripheral integration, and power efficiency. The device operates from 1.62V to 3.6V and supports industrial temperature range of -40°C to +85°C.
Key Specifications
| Core | Dual-core: ARM Cortex-M7 (480MHz) + Cortex-M4 (240MHz) with DP-FPU |
| Maximum Frequency | 480 MHz (M7) / 240 MHz (M4) |
| Flash Memory | 2 MB (dual bank, read-while-write, ECC) |
| SRAM | 1 MB (192KB TCM + 864KB user SRAM + 4KB backup) |
| Package | LQFP-144 |
| Operating Voltage | 1.62V to 3.6V |
| Operating Temperature | -40°C to +85°C |
| I/O Pins | Up to 168 (up to 164 5V-tolerant, up to 133 MHz fast I/Os) |
| 3x 12-bit ADC | up to 36 channels, up to 3.6 MSPS, 16-bit max with oversampling |
| DAC | 2x 12-bit DAC (1 MHz) |
| DMA | 4 DMA controllers: MDMA + 2x dual-port DMA + basic DMA |
| Timers | Up to 22+ timers incl. HRTIM (2.1ns), 2x 32-bit, 12x 16-bit, 5x LPTIM, 2x WDT |
| USART/UART | 4x USART + 4x UART + 1x LPUART (up to 12.5 Mbit/s) |
| SPI/I2S | 6x SPI (up to 150 MHz), 3 with muxed full-duplex I2S |
| I2C | 4x I2C Fast-mode Plus (1 Mbit/s) |
| CAN | 2x CAN FD (1 with TT-CAN time-triggered) |
| Ethernet | 10/100 Ethernet MAC with DMA and IEEE 1588 PTP |
| USB | Dual USB OTG: HS/FS with ULPI + FS with on-chip PHY |
| Other Peripherals | LCD-TFT + Chrom-ART + JPEG Codec + 4x SAI + SPDIFRX + 2x SDMMC + DCMI + Quad-SPI (133MHz) + FMC + DFSDM (8ch/4filt) + 2x Op-Amp + 2x Comp + RNG + SMPS + 3 power domains |
| Performance | 1027 DMIPS (M7) + 300 DMIPS (M4) |
Features
- High-performance ARM core with FPU and DSP: 1027 DMIPS (M7) + 300 DMIPS (M4) performance
- Dual-core architecture for application/real-time task partitioning
- Advanced memory architecture with TCM for deterministic real-time performance
- Rich analog subsystem: 3x 12-bit ADC, 2x 12-bit DAC (1 MHz)
- Multiple DMA controllers for autonomous data transfers
- Advanced timers including motor control PWM, high-resolution timer, low-power timers
- Extensive communication: 4x I2C Fast-mode Plus (1 Mbit/s), 4x USART + 4x UART + 1x LPUART, 6x SPI
- SMPS step-down converter for high power efficiency
- Advanced graphics: LCD-TFT + Chrom-ART + JPEG hardware codec
- Industrial temperature range, RoHS compliant, ECOPACK2 packaging
Applications
- High-performance industrial control and PLC with multi-tasking
- Dual-core real-time systems: M7 for application, M4 for real-time I/O
- Advanced motor control and high-precision servo drives
- High-end HMI and embedded GUI platforms with graphics acceleration
- Medical devices with display and signal processing
- IoT edge gateways with multiple connectivity protocols
- Automotive ADAS and body electronics controllers
- Professional audio processing and DSP equipment
- Industrial networking and protocol converters
- Edge AI inference with camera and sensor fusion