SMT32H745ZI STMicroelectronics Integrated Circuit (Quad Flat Packages) In Stock
STMicroelectronics STM32H745ZI is a high-performance dual-core microcontroller with an ARM Cortex-M7 at 480 MHz and a Cortex-M4 at 240 MHz, offering 2 MB Flash and 1 MB SRAM in a 144-pin LQFP package. It integrates Ethernet MAC, USB HS, and dual ADCs for demanding real-time control applications. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat Packages
- Pin Count
- 144
- Lifecycle
- ACTIVE
- Datasheet
- SMT32H745ZI Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SMT32H745ZI?
- Dual-core ARM Cortex-M7 at 480 MHz plus Cortex-M4 at 240 MHz enabling parallel real-time and background processing
- 2 MB dual-bank Flash with 1 MB SRAM supporting large firmware images and high-bandwidth data buffering
- Integrated Ethernet MAC, USB HS OTG, and dual 16-bit ADCs at 3.6 Msps for multi-interface industrial systems
What is SMT32H745ZI used for?
The STM32H745ZI targets high-performance industrial motor drives, robotic controllers, and vision-guided automation systems that need the combined throughput of a 480 MHz Cortex-M7 alongside a dedicated 240 MHz real-time co-processor. Its Ethernet MAC and USB HS OTG ports allow it to serve as an embedded gateway in factory automation networks without external network processors. Medical imaging front ends and power quality analyzers also benefit from its dual 16-bit ADCs running at 3.6 Msps and the large on-chip SRAM for DMA-driven data pipelines.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SMT32H745ZI datasheet?
SMT32H745ZI Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for SMT32H745ZI?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the dual-core architecture of STM32H745ZI split work between the Cortex-M7 and Cortex-M4?
The STM32H745ZI pairs a 480 MHz Cortex-M7 with a 240 MHz Cortex-M4. A typical partition places the latency-sensitive real-time control loop — such as a 20 kHz PWM current loop for motor drives — on the M4, while the M7 handles higher-level tasks like Ethernet communication, display rendering, or FFT-based signal analysis. Inter-core communication uses hardware semaphores and a shared 1 MB SRAM region to pass data with sub-microsecond latency.
What ADC performance does STM32H745ZI offer for high-speed analog measurement?
The STM32H745ZI integrates two independent 16-bit successive-approximation ADCs each capable of up to 3.6 Msps. Running both ADCs simultaneously delivers 7.2 Msps of aggregate sample rate, sufficient for multi-phase current sensing in a 3-phase inverter at switching frequencies above 100 kHz, or for simultaneous dual-channel waveform capture in power quality analyzers and oscilloscope front ends.
Which connectivity interfaces are built into STM32H745ZI for industrial networking?
The STM32H745ZI includes an IEEE 802.3 Ethernet MAC with MII and RMII support, a USB HS OTG port operating at 480 Mbps, multiple UART and SPI channels, dual CAN-FD controllers, and an SDMMC interface for memory cards. This integration allows a single chip to implement a combined EtherNet/IP to USB bridge and SD-card data logger in industrial gateway designs without requiring companion network chips.
For a 144-pin LQFP layout, what PCB design considerations apply to STM32H745ZI?
The 144-pin LQFP package has a 0.5 mm pitch and a 20 mm x 20 mm body. Each power supply pin pair requires a 100 nF decoupling capacitor within 0.5 mm, and the Ethernet RMII clock trace should be kept under 25 mm with matched length to minimize jitter below 100 ps. A 4-layer PCB with dedicated power and ground planes is strongly recommended to handle the 480 MHz Cortex-M7 edge rates and the 3.6 Msps ADC sampling noise isolation.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
In Stock · 24h Response · Worldwide Shipping
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