STM32H755IIT6 STMicroelectronics Integrated Circuit (Quad Flat Packages) In Stock
STM32H755IIT6 is a dual-core 32-bit ARM Cortex-M7 and Cortex-M4 microcontroller from STMicroelectronics in LQFP-176 package. Runs at up to 480 MHz with floating-point unit, ADC, DAC, and DMA support. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat Packages
- Pin Count
- 176
- Lifecycle
- ACTIVE
- Datasheet
- STM32H755IIT6 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $10.8155(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-core Arm Cortex-M7 at 480 MHz plus Cortex-M4 at 240 MHz for asymmetric multiprocessing
- Integrated FPU, DSP instructions, and hardware accelerators for real-time signal processing
- Rich peripheral set with multiple ADC, DAC, DMA channels, and boundary scan in LQFP-176 package
Applications
The STM32H755IIT6 is designed for demanding real-time control applications such as industrial motor drives, robotics, and power conversion systems that require simultaneous high-speed computation on two independent cores. Its floating-point and DSP capabilities make it ideal for audio processing, image processing pipelines, and wireless communication protocol stacks. Automotive and industrial IoT gateway designs leverage its dual-core architecture to segregate safety-critical tasks from connectivity and user-interface workloads.
Specifications
| Factory Lead Time | 15Weeks |
| YTEOL | 9 |
| Has ADC | YES |
| Bit Size | 32 |
| Boundary Scan | YES |
| CPU Family | CORTEX-M4/M7 |
| Clock Frequency-Max | 48MHz |
| DAC Channels | YES |
| DMA Channels | YES |
| Format | FLOATING POINT |
| Integrated Cache | YES |
| JESD-30 Code | S-PQFP-G176 |
| Low Power Mode | YES |
| Number of DMA Channels | 4 |
| Number of I/O Lines | 119 |
| Number of Serial I/Os | 11 |
| Number of Timers | 28 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | QFP176,1.0SQ,20 |
| Package Shape | SQUARE |
| Package Style | FLATPACK, LOW PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| RAM (bytes) | 1085440 |
| ROM (words) | 2097152 |
| ROM Programmability | FLASH |
| Speed | 480MHz |
| Supply Current-Max | 462mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3.3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 5A992.C |
| HTS Code | 8542.31.00.25 |
| Country of Origin | Taiwan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What clock speeds do the two cores in STM32H755IIT6 run at, and how does this benefit real-time control designs?
The STM32H755IIT6 runs the Cortex-M7 core at up to 480 MHz and the Cortex-M4 core at up to 240 MHz simultaneously. This asymmetric dual-core arrangement allows developers to run time-critical control loops on the faster M7 core while offloading connectivity, HMI, or protocol tasks to the M4 core, reducing worst-case interrupt latency below 10 ns in industrial motor control applications.
How many ADC inputs does STM32H755IIT6 provide and at what resolution for analog sensing applications?
The STM32H755IIT6 features multiple 16-bit ADC inputs and DAC channel outputs, enabling simultaneous multi-channel analog acquisition and waveform generation. With DMA support, the ADC can continuously sample sensor data at high rates without CPU intervention, making it well suited for power electronics feedback loops and industrial measurement systems requiring 16-bit resolution.
When should an engineer choose STM32H755IIT6 over a single-core STM32H743 for an embedded design?
STM32H755IIT6 is the right choice when the application demands strict task isolation between real-time control and communication workloads. Unlike the single-core STM32H743 at 480 MHz, the H755 adds a second Cortex-M4 core at 240 MHz, enabling AMP (Asymmetric Multi-Processing) for running FreeRTOS on M4 while bare-metal control code runs on M7, reducing system latency in dual-domain designs with 176-pin LQFP package.
What package does the STM32H755IIT6 use and how much board space does it require for a compact PCB layout?
The STM32H755IIT6 comes in an LQFP-176 package measuring 24 mm x 24 mm with 0.5 mm pin pitch. While larger than smaller LQFP variants, it exposes all 176 pins needed for the full peripheral complement including Ethernet, USB, SDMMC, and FDCAN interfaces, making it suitable for feature-rich industrial control boards where complete I/O access matters.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $18.2200 | $18.22 |
| 5+ | $17.8800 | $89.40 |
| 100+ | $12.7172 | $1271.72 |
| 400+ | $12.0121 | $4804.85 |
| 800+ | $11.7501 | $9400.11 |
| 1600+ | $10.8155 | $17304.86 |
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