STM32H755ZIT6 - Dual-Core Cortex-M7/M4 MCU | STMicroelectronics
MPN: STM32H755ZIT6 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.8 | $168.00 |
| 100 | $14.2 | $1,420.00 |
| 500 | $12.9 | $6,450.00 |
| 1,000 | $11.5 | $11,500.00 |
Drop-in alternatives for STM32H755ZIT6 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
STM32H753ZIT6
β Drop-Inβ 99,999 In Stock
$11.75 / Unit
View Datasheet βSTM32H750ZIT6
β Drop-Inπ Reference alternative (not in catalog)
STM32H745ZIT6
β Drop-Inβ 99,999 In Stock
$11.75 / Unit
View Datasheet βSTM32H755ZIT6 Maximum Ratings & Electrical Characteristics
| Core | Arm Cortex-M7 + Cortex-M4 |
| Maximum Clock Speed | 480 MHz (M7), 240 MHz (M4) |
| Flash Memory | 2 MB |
| SRAM | 1 MB |
| Package | LQFP144 (20x20 mm) |
| Supply Voltage | 1.62V to 3.6V |
| Operating Temperature | -40Β°C to +85Β°C |
| GPIO Pins | 114 |
| ADC | 3x 16-bit, up to 3.6 MSPS |
| DAC | 2x 12-bit |
| Communication Interfaces | Ethernet, USB OTG HS/FS, CAN FD, SPI, I2C, UART, SDMMC |
| Timers | Multiple 16/32-bit timers |
| Cryptographic Acceleration | Hardware AES, DES, 3DES, SHA-1, SHA-256 |
| DMA | 2x DMA controllers with 16 streams each |
| RoHS Status | Compliant |
STM32H755ZIT6 Pin Configuration
| Pin 1 | VBAT β Battery backup supply for RTC and backup registers |
| Pin 2 | PC13 β GPIO or RTC tamper/calendar output |
| Pin 3 | PC14 β GPIO or OSC32_IN |
| Pin 4 | PC15 β GPIO or OSC32_OUT |
| Pin 5 | PF0 β GPIO |
| Pin 6 | PF1 β GPIO |
| Pin 7 | PF2 β GPIO |
| Pin 8 | PF3 β GPIO |
| Pin 9 | PF4 β GPIO |
| Pin 10 | PF5 β GPIO |
| Pin 11 | VSS β Ground |
| Pin 12 | VDD β Power supply (1.62V-3.6V) |
| Pin 13 | PF6 β GPIO |
| Pin 14 | PF7 β GPIO |
| Pin 15 | PF8 β GPIO |
| Pin 16 | PF9 β GPIO |
| Pin 17 | PF10 β GPIO |
| Pin 18 | PF11 β GPIO |
| Pin 19 | PF12 β GPIO |
| Pin 20 | PF13 β GPIO |
| Pin 21 | PF14 β GPIO |
| Pin 22 | PF15 β GPIO |
| Pin 23 | PG0 β GPIO |
| Pin 24 | PG1 β GPIO |
| Pin 25 | PG2 β GPIO |
| Pin 26 | PG3 β GPIO |
| Pin 27 | PG4 β GPIO |
| Pin 28 | PG5 β GPIO |
| Pin 29 | PG6 β GPIO |
| Pin 30 | PG7 β GPIO |
| Pin 31 | PG8 β GPIO |
| Pin 32 | PG9 β GPIO |
| Pin 33 | PG10 β GPIO |
| Pin 34 | PG11 β GPIO |
| Pin 35 | PG12 β GPIO |
| Pin 36 | PG13 β GPIO |
| Pin 37 | PG14 β GPIO |
| Pin 38 | PG15 β GPIO |
| Pin 39 | PH0 β GPIO or OSC_IN |
| Pin 40 | PH1 β GPIO or OSC_OUT |
| Pin 41 | PH2 β GPIO |
| Pin 42 | PH3 β GPIO |
| Pin 43 | PH4 β GPIO |
| Pin 44 | PH5 β GPIO |
| Pin 45 | PH6 β GPIO |
| Pin 46 | PH7 β GPIO |
| Pin 47 | PH8 β GPIO |
| Pin 48 | PH9 β GPIO |
| Pin 49 | PH10 β GPIO |
| Pin 50 | PH11 β GPIO |
| Pin 51 | PH12 β GPIO |
| Pin 52 | PH13 β GPIO |
| Pin 53 | PH14 β GPIO |
| Pin 54 | PH15 β GPIO |
| Pin 55 | PI0 β GPIO |
| Pin 56 | PI1 β GPIO |
| Pin 57 | PI2 β GPIO |
| Pin 58 | PI3 β GPIO |
| Pin 59 | PI4 β GPIO |
| Pin 60 | PI5 β GPIO |
| Pin 61 | PI6 β GPIO |
| Pin 62 | PI7 β GPIO |
| Pin 63 | PI8 β GPIO |
| Pin 64 | PI9 β GPIO |
| Pin 65 | PI10 β GPIO |
| Pin 66 | PI11 β GPIO |
| Pin 67 | PI12 β GPIO |
| Pin 68 | PI13 β GPIO |
| Pin 69 | PI14 β GPIO |
| Pin 70 | PI15 β GPIO |
| Pin 71 | VSS β Ground |
| Pin 72 | VDD β Power supply |
| Pin 73 | PA0 β GPIO or analog input |
| Pin 74 | PA1 β GPIO or analog input |
| Pin 75 | PA2 β GPIO or analog input |
| Pin 76 | PA3 β GPIO or analog input |
| Pin 77 | PA4 β GPIO or analog input |
| Pin 78 | PA5 β GPIO or analog input |
| Pin 79 | PA6 β GPIO or analog input |
| Pin 80 | PA7 β GPIO or analog input |
| Pin 81 | PA8 β GPIO |
| Pin 82 | PA9 β GPIO |
| Pin 83 | PA10 β GPIO |
| Pin 84 | PA11 β GPIO |
| Pin 85 | PA12 β GPIO |
| Pin 86 | PA13 β GPIO or SWDIO |
| Pin 87 | PA14 β GPIO or SWCLK |
| Pin 88 | PA15 β GPIO |
| Pin 89 | PB0 β GPIO or analog input |
| Pin 90 | PB1 β GPIO or analog input |
| Pin 91 | PB2 β GPIO |
| Pin 92 | PB3 β GPIO |
| Pin 93 | PB4 β GPIO |
| Pin 94 | PB5 β GPIO |
| Pin 95 | PB6 β GPIO |
| Pin 96 | PB7 β GPIO |
| Pin 97 | PB8 β GPIO |
| Pin 98 | PB9 β GPIO |
| Pin 99 | PB10 β GPIO |
| Pin 100 | PB11 β GPIO |
| Pin 101 | PB12 β GPIO |
| Pin 102 | PB13 β GPIO |
| Pin 103 | PB14 β GPIO |
| Pin 104 | PB15 β GPIO |
| Pin 105 | PC0 β GPIO or analog input |
| Pin 106 | PC1 β GPIO or analog input |
| Pin 107 | PC2 β GPIO or analog input |
| Pin 108 | PC3 β GPIO or analog input |
| Pin 109 | PC4 β GPIO or analog input |
| Pin 110 | PC5 β GPIO or analog input |
| Pin 111 | PC6 β GPIO |
| Pin 112 | PC7 β GPIO |
| Pin 113 | PC8 β GPIO |
| Pin 114 | PC9 β GPIO |
| Pin 115 | PC10 β GPIO |
| Pin 116 | PC11 β GPIO |
| Pin 117 | PC12 β GPIO |
| Pin 118 | PC13 β GPIO or RTC |
| Pin 119 | PC14 β GPIO or OSC32_IN |
| Pin 120 | PC15 β GPIO or OSC32_OUT |
| Pin 121 | PD0 β GPIO |
| Pin 122 | PD1 β GPIO |
| Pin 123 | PD2 β GPIO |
| Pin 124 | PD3 β GPIO |
| Pin 125 | PD4 β GPIO |
| Pin 126 | PD5 β GPIO |
| Pin 127 | PD6 β GPIO |
| Pin 128 | PD7 β GPIO |
| Pin 129 | PD8 β GPIO |
| Pin 130 | PD9 β GPIO |
| Pin 131 | PD10 β GPIO |
| Pin 132 | PD11 β GPIO |
| Pin 133 | PD12 β GPIO |
| Pin 134 | PD13 β GPIO |
| Pin 135 | PD14 β GPIO |
| Pin 136 | PD15 β GPIO |
| Pin 137 | PE0 β GPIO |
| Pin 138 | PE1 β GPIO |
| Pin 139 | PE2 β GPIO |
| Pin 140 | PE3 β GPIO |
| Pin 141 | PE4 β GPIO |
| Pin 142 | PE5 β GPIO |
| Pin 143 | PE6 β GPIO |
| Pin 144 | PE7 β GPIO |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
STM32H755ZIT6 is suitable for 6 applications: Industrial Automation, Motor Control, Medical Devices, Audio Processing, IoT Gateway, Human-Machine Interface (HMI).
Industrial Automation
The STM32H755ZIT6 is ideal for industrial automation due to its dual-core processing, enabling real-time control and communication simultaneously. The Cortex-M7 core can handle complex control algorithms, while the M4 core manages fieldbus communication (EtherCAT, PROFINET) and HMI. With 2 MB flash and 1 MB SRAM, it can store large firmware and data buffers. The device supports industrial temperature ranges and has robust peripherals like CAN FD and Ethernet for factory networking. Its high clock speed ensures fast response times for precise motion control and PLC applications.
Recommended
Motor Control
The STM32H755ZIT6 excels in motor control applications, such as field-oriented control (FOC) of BLDC and PMSM motors. The dual-core architecture allows one core to run the control loop at high frequency (e.g., 20 kHz) while the other handles user interface, communication, and safety monitoring. The device includes advanced timers with dead-time generation and complementary PWM outputs, plus high-resolution ADCs for current sensing. Its 480 MHz clock ensures low latency for real-time control, and the hardware cryptographic accelerator can secure firmware updates. The LQFP144 package provides ample GPIOs for encoder interfaces and brake control.
Recommended
Medical Devices
The STM32H755ZIT6 is suitable for medical devices like patient monitors, infusion pumps, and diagnostic equipment. Its dual-core design enables simultaneous processing of sensor data and user interface, ensuring real-time responsiveness. The device's high-performance ADC (16-bit) can capture vital signs accurately, while the cryptographic accelerator ensures data security for patient records. The wide operating temperature range and industrial-grade reliability make it suitable for medical environments. With 2 MB flash, it can store complex algorithms and patient data logs. The rich connectivity options (USB, Ethernet) facilitate data transfer to hospital networks.
Recommended
Audio Processing
The STM32H755ZIT6 is well-suited for high-end audio processing, such as audio interfaces, effects processors, and smart speakers. The dual-core architecture allows the Cortex-M7 to handle DSP algorithms (e.g., FIR filters, FFT) while the M4 manages audio I/O and control. The device includes a dedicated audio PLL and supports I2S and SAI interfaces for high-quality audio data transfer. With 1 MB SRAM, it can buffer large audio streams. The Chrom-ART Accelerator can enhance graphics for audio equipment displays. Its low-latency processing ensures real-time audio effects.
Recommended
IoT Gateway
The STM32H755ZIT6 is an excellent choice for IoT gateways, providing powerful processing for edge computing and protocol conversion. The dual-core design allows one core to handle network protocols (Ethernet, Wi-Fi via external module) while the other manages sensor data aggregation and local decision-making. The device supports multiple communication interfaces (UART, SPI, I2C, USB) to connect various sensors and actuators. Its hardware cryptographic accelerator ensures secure communication (TLS/DTLS). With 2 MB flash, it can store firmware and configuration data. The low-power modes help reduce energy consumption in battery-powered gateways.
Recommended
Human-Machine Interface (HMI)
The STM32H755ZIT6 is ideal for advanced HMI applications, such as industrial control panels, smart home displays, and point-of-sale terminals. The dual-core architecture enables smooth graphics rendering on the Cortex-M7 using the Chrom-ART Accelerator, while the M4 handles touch input and communication. The device supports external memory via FMC for large frame buffers and includes a LCD-TFT controller for direct display connection. With 2 MB flash, it can store complex UI assets. The rich connectivity options allow integration with various peripherals. Its high clock speed ensures responsive user interaction.
Recommended
Recommended Products Summary
Engineering reference data for STM32H755ZIT6 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32H753ZIT6 | STM32H750ZIT6 | STM32H745ZIT6 | STM32H747ZIT6 |
|---|---|---|---|---|---|
| Package | LQFP144 | LQFP144 | LQFP144 | LQFP144 | LQFP176 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | Dual-core (M7+M4) | Single-core (M7) | Single-core (M7) | Dual-core (M7+M4) | Dual-core (M7+M4) |
| Max Clock Speed | 480 MHz (M7), 240 MHz (M4) | 480 MHz | 480 MHz | 480 MHz (M7), 240 MHz (M4) | 480 MHz (M7), 240 MHz (M4) |
| Flash Memory | 2 MB | 2 MB | 128 KB | 2 MB | 2 MB |
| SRAM | 1 MB | 1 MB | 1 MB | 1 MB | 1 MB |
| Ethernet | Yes | Yes | Yes | Yes | Yes |
| USB OTG | Yes (HS/FS) | Yes (HS/FS) | Yes (HS/FS) | Yes (HS/FS) | Yes (HS/FS) |
| Price (1 pcs) | $18.50 | $17.20 | $12.80 | $19.10 | $20.40 |
Key Differentiators
- Dual-core architecture (vs STM32H753ZIT6)
- Higher flash memory (vs STM32H750ZIT6)
- Pin-compatible with H753 (vs STM32H747ZIT6)
Design Notes
The STM32H755ZIT6 requires a stable power supply. Decouple each VDD pin with a 100 nF ceramic capacitor and a 4.7 uF bulk capacitor. The VDDA analog supply should be filtered with a ferrite bead and a 1 uF capacitor to reduce noise. Ensure the VCAP pins are connected to external capacitors as specified in the datasheet (typically 2.2 uF) for internal regulator stability.
At 480 MHz with both cores active, the STM32H755ZIT6 can dissipate significant power. The LQFP144 package has a thermal resistance (theta_JA) of approximately 40Β°C/W. For high-performance applications, ensure adequate airflow or a heatsink. Use a 4-layer PCB with a solid ground plane and thermal vias under the exposed pad (if available) to improve heat dissipation.
For high-speed interfaces like Ethernet and USB, maintain controlled impedance traces (e.g., 50 ohm for single-ended, 90 ohm differential for USB). Keep traces short and use ground planes to minimize EMI. For the crystal oscillator, place it close to the OSC_IN/OSC_OUT pins and keep the load capacitors within 5 mm to reduce stray capacitance.
Compliance Information
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified (industrial grade only).
