STM32H7B3ZIT6 - 32-bit Arm Cortex-M7 MCU 2MB Flash | STMicroelectronics
MPN: STM32H7B3ZIT6 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 STM32H7B3ZIT6 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:
STM32H7B3ZIT6Q
β Drop-Inπ Reference alternative (not in catalog)
STM32H743ZIT6
β Drop-Inβ 99,999 In Stock
$11.85 / Unit
View Datasheet βSTM32H753ZIT6
β Drop-Inπ Reference alternative (not in catalog)
STM32H750ZIT6
β Drop-Inπ Reference alternative (not in catalog)
STM32H723ZIT6
β Drop-Inπ Reference alternative (not in catalog)
STM32H7B3ZIT6 Maximum Ratings & Electrical Characteristics
| Core | Arm Cortex-M7 |
| Maximum Clock Frequency | 280 MHz |
| Flash Memory | 2 MB |
| SRAM | 1.4 MB |
| Supply Voltage Range | 1.62 V to 3.6 V |
| Package | LQFP-144 |
| Operating Temperature Range | -40C to +125C |
| Number of I/O Pins | 114 |
| ADC Resolution | 12-bit |
| ADC Sample Rate | 5 MSPS |
| DAC Resolution | 12-bit |
| Communication Interfaces | USART, SPI, I2C, CAN, USB OTG, Ethernet |
| Timers | Multiple 16-bit and 32-bit timers |
| DMA Channels | 16 |
| RoHS Status | Compliant |
STM32H7B3ZIT6 Pin Configuration
| Pin 1 | PE2 β GPIO / alternate functions |
| Pin 2 | PE3 β GPIO / alternate functions |
| Pin 3 | PE4 β GPIO / alternate functions |
| Pin 4 | PE5 β GPIO / alternate functions |
| Pin 5 | PE6 β GPIO / alternate functions |
| Pin 6 | VBAT β Backup battery supply |
| Pin 7 | PC13 β GPIO / RTC output |
| Pin 8 | PC14 β GPIO / OSC32_IN |
| Pin 9 | PC15 β GPIO / OSC32_OUT |
| Pin 10 | PF0 β GPIO / alternate functions |
| Pin 11 | PF1 β GPIO / alternate functions |
| Pin 12 | PF2 β GPIO / alternate functions |
| Pin 13 | PF3 β GPIO / alternate functions |
| Pin 14 | PF4 β GPIO / alternate functions |
| Pin 15 | PF5 β GPIO / alternate functions |
| Pin 16 | VSS β Ground |
| Pin 17 | VDD β Power supply |
| Pin 18 | PF6 β GPIO / alternate functions |
| Pin 19 | PF7 β GPIO / alternate functions |
| Pin 20 | PF8 β GPIO / alternate functions |
| Pin 21 | PF9 β GPIO / alternate functions |
| Pin 22 | PF10 β GPIO / alternate functions |
| Pin 23 | PF11 β GPIO / alternate functions |
| Pin 24 | PF12 β GPIO / alternate functions |
| Pin 25 | PF13 β GPIO / alternate functions |
| Pin 26 | PF14 β GPIO / alternate functions |
| Pin 27 | PF15 β GPIO / alternate functions |
| Pin 28 | VSS β Ground |
| Pin 29 | VDD β Power supply |
| Pin 30 | PG0 β GPIO / alternate functions |
| Pin 31 | PG1 β GPIO / alternate functions |
| Pin 32 | PG2 β GPIO / alternate functions |
| Pin 33 | PG3 β GPIO / alternate functions |
| Pin 34 | PG4 β GPIO / alternate functions |
| Pin 35 | PG5 β GPIO / alternate functions |
| Pin 36 | PG6 β GPIO / alternate functions |
| Pin 37 | PG7 β GPIO / alternate functions |
| Pin 38 | PG8 β GPIO / alternate functions |
| Pin 39 | PG9 β GPIO / alternate functions |
| Pin 40 | PG10 β GPIO / alternate functions |
| Pin 41 | PG11 β GPIO / alternate functions |
| Pin 42 | PG12 β GPIO / alternate functions |
| Pin 43 | PG13 β GPIO / alternate functions |
| Pin 44 | PG14 β GPIO / alternate functions |
| Pin 45 | PG15 β GPIO / alternate functions |
| Pin 46 | VSS β Ground |
| Pin 47 | VDD β Power supply |
| Pin 48 | PD0 β GPIO / alternate functions |
| Pin 49 | PD1 β GPIO / alternate functions |
| Pin 50 | PD2 β GPIO / alternate functions |
| Pin 51 | PD3 β GPIO / alternate functions |
| Pin 52 | PD4 β GPIO / alternate functions |
| Pin 53 | PD5 β GPIO / alternate functions |
| Pin 54 | PD6 β GPIO / alternate functions |
| Pin 55 | PD7 β GPIO / alternate functions |
| Pin 56 | PD8 β GPIO / alternate functions |
| Pin 57 | PD9 β GPIO / alternate functions |
| Pin 58 | PD10 β GPIO / alternate functions |
| Pin 59 | PD11 β GPIO / alternate functions |
| Pin 60 | PD12 β GPIO / alternate functions |
| Pin 61 | PD13 β GPIO / alternate functions |
| Pin 62 | PD14 β GPIO / alternate functions |
| Pin 63 | PD15 β GPIO / alternate functions |
| Pin 64 | VSS β Ground |
| Pin 65 | VDD β Power supply |
| Pin 66 | PC0 β GPIO / ADC input |
| Pin 67 | PC1 β GPIO / ADC input |
| Pin 68 | PC2 β GPIO / ADC input |
| Pin 69 | PC3 β GPIO / ADC input |
| Pin 70 | PC4 β GPIO / ADC input |
| Pin 71 | PC5 β GPIO / ADC input |
| Pin 72 | PB2 β GPIO / alternate functions |
| Pin 73 | PE0 β GPIO / alternate functions |
| Pin 74 | PE1 β GPIO / alternate functions |
| Pin 75 | VSS β Ground |
| Pin 76 | VDD β Power supply |
| Pin 77 | PB0 β GPIO / ADC input |
| Pin 78 | PB1 β GPIO / ADC input |
| Pin 79 | PB3 β GPIO / alternate functions |
| Pin 80 | PB4 β GPIO / alternate functions |
| Pin 81 | PB5 β GPIO / alternate functions |
| Pin 82 | PB6 β GPIO / alternate functions |
| Pin 83 | PB7 β GPIO / alternate functions |
| Pin 84 | BOOT0 β Boot mode selection |
| Pin 85 | PB8 β GPIO / alternate functions |
| Pin 86 | PB9 β GPIO / alternate functions |
| Pin 87 | PE7 β GPIO / alternate functions |
| Pin 88 | PE8 β GPIO / alternate functions |
| Pin 89 | PE9 β GPIO / alternate functions |
| Pin 90 | PE10 β GPIO / alternate functions |
| Pin 91 | PE11 β GPIO / alternate functions |
| Pin 92 | PE12 β GPIO / alternate functions |
| Pin 93 | PE13 β GPIO / alternate functions |
| Pin 94 | PE14 β GPIO / alternate functions |
| Pin 95 | PE15 β GPIO / alternate functions |
| Pin 96 | VSS β Ground |
| Pin 97 | VDD β Power supply |
| Pin 98 | PB10 β GPIO / alternate functions |
| Pin 99 | PB11 β GPIO / alternate functions |
| Pin 100 | PB12 β GPIO / alternate functions |
| Pin 101 | PB13 β GPIO / alternate functions |
| Pin 102 | PB14 β GPIO / alternate functions |
| Pin 103 | PB15 β GPIO / alternate functions |
| Pin 104 | PD8 β GPIO / alternate functions |
| Pin 105 | PD9 β GPIO / alternate functions |
| Pin 106 | PD10 β GPIO / alternate functions |
| Pin 107 | PD11 β GPIO / alternate functions |
| Pin 108 | PD12 β GPIO / alternate functions |
| Pin 109 | PD13 β GPIO / alternate functions |
| Pin 110 | PD14 β GPIO / alternate functions |
| Pin 111 | PD15 β GPIO / alternate functions |
| Pin 112 | VSS β Ground |
| Pin 113 | VDD β Power supply |
| Pin 114 | PA0 β GPIO / ADC input |
| Pin 115 | PA1 β GPIO / ADC input |
| Pin 116 | PA2 β GPIO / ADC input |
| Pin 117 | PA3 β GPIO / ADC input |
| Pin 118 | PA4 β GPIO / ADC input |
| Pin 119 | PA5 β GPIO / ADC input |
| Pin 120 | PA6 β GPIO / ADC input |
| Pin 121 | PA7 β GPIO / ADC input |
| Pin 122 | PA8 β GPIO / alternate functions |
| Pin 123 | PA9 β GPIO / alternate functions |
| Pin 124 | PA10 β GPIO / alternate functions |
| Pin 125 | PA11 β GPIO / alternate functions |
| Pin 126 | PA12 β GPIO / alternate functions |
| Pin 127 | PA13 β GPIO / SWDIO |
| Pin 128 | PA14 β GPIO / SWCLK |
| Pin 129 | PA15 β GPIO / alternate functions |
| Pin 130 | VSS β Ground |
| Pin 131 | VDD β Power supply |
| Pin 132 | PC6 β GPIO / alternate functions |
| Pin 133 | PC7 β GPIO / alternate functions |
| Pin 134 | PC8 β GPIO / alternate functions |
| Pin 135 | PC9 β GPIO / alternate functions |
| Pin 136 | PC10 β GPIO / alternate functions |
| Pin 137 | PC11 β GPIO / alternate functions |
| Pin 138 | PC12 β GPIO / alternate functions |
| Pin 139 | PD0 β GPIO / alternate functions |
| Pin 140 | PD1 β GPIO / alternate functions |
| Pin 141 | PD2 β GPIO / alternate functions |
| Pin 142 | PD3 β GPIO / alternate functions |
| Pin 143 | PD4 β GPIO / alternate functions |
| Pin 144 | PD5 β GPIO / alternate functions |
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
STM32H7B3ZIT6 is suitable for 6 applications: Industrial Automation, Motor Control, Smart Home, Audio Processing, Human-Machine Interface (HMI), IoT Gateway.
Industrial Automation
The STM32H7B3ZIT6 is ideal for industrial automation due to its high clock speed, large memory, and robust communication interfaces. It can handle real-time control of PLCs, motor drives, and robotic systems. The 280 MHz Cortex-M7 core executes complex control algorithms with low latency, while the 2 MB flash and 1.4 MB SRAM accommodate extensive firmware and data logging. The device supports Ethernet, CAN, and multiple UARTs for seamless integration into industrial networks. Its wide temperature range (-40Β°C to +125Β°C) ensures reliable operation in harsh factory environments. The 12-bit ADC with 5 MSPS enables precise analog sensing for current, voltage, and temperature monitoring. With the FMC, external memory can be added for larger data buffers. The device's low-power modes help reduce energy consumption in always-on systems. Overall, the STM32H7B3ZIT6 provides the performance and connectivity required for advanced industrial automation solutions.
Recommended
Motor Control
The STM32H7B3ZIT6 excels in motor control applications, offering advanced timers with PWM generation, high-speed ADC for current sensing, and multiple communication interfaces for encoder feedback. The 280 MHz clock enables real-time implementation of Field-Oriented Control (FOC) algorithms for brushless DC motors. The 12-bit ADC with 5 MSPS samples phase currents accurately, while the timers generate precise PWM signals. The device's large SRAM (1.4 MB) allows storing complex control tables and diagnostic data. The CAN interface facilitates communication with motor drives in industrial networks. The device's robust design and wide temperature range make it suitable for automotive and industrial motor control. The STM32H7B3ZIT6 also supports sensorless control techniques, reducing system cost. With its high performance and rich peripherals, it is a preferred choice for advanced motor control systems.
Recommended
Smart Home
The STM32H7B3ZIT6 is well-suited for smart home applications, providing high processing power for complex user interfaces and connectivity. It can serve as the central hub for smart home systems, managing multiple sensors and actuators. The device's Ethernet and USB interfaces enable connection to home networks and cloud services. The Chrom-ART Accelerator enhances graphical user interfaces on displays, while the JPEG codec supports image processing for security cameras. The large memory allows storing configuration data and logs. The device's low-power modes are beneficial for battery-powered devices. With its rich peripheral set, the STM32H7B3ZIT6 can handle voice recognition, environmental monitoring, and automated control. Its wide operating temperature range ensures reliable operation in home environments. The device supports secure communication via hardware cryptographic acceleration, protecting user data.
Recommended
Audio Processing
The STM32H7B3ZIT6 is an excellent choice for audio processing applications, offering high clock speed and DSP capabilities. The 280 MHz Cortex-M7 core can handle real-time audio algorithms such as filtering, equalization, and noise reduction. The device includes a digital filter for sigma-delta modulators (DFSDM) for high-quality audio capture. The large SRAM (1.4 MB) allows buffering of audio streams. The device supports I2S interfaces for connection to audio codecs and DACs. The Chrom-ART Accelerator can be used for audio visualization on displays. The device's low latency and deterministic performance make it suitable for professional audio equipment. The STM32H7B3ZIT6 also supports USB audio class, enabling direct connection to computers. With its rich audio peripherals and high performance, it is ideal for audio interfaces, mixers, and effects processors.
Recommended
Human-Machine Interface (HMI)
The STM32H7B3ZIT6 is designed for advanced HMI applications, featuring a Chrom-ART Accelerator for efficient graphics rendering and a JPEG codec for image display. The high clock speed ensures smooth animations and responsive touch interfaces. The device supports various display interfaces, including RGB LCD and MIPI DSI, enabling connection to high-resolution screens. The large flash memory (2 MB) stores graphical assets and fonts. The device's rich peripheral set includes touch controller interfaces and audio outputs for interactive feedback. The STM32H7B3ZIT6 can handle complex user interfaces with multiple windows and widgets. Its low-power modes are beneficial for portable HMI devices. The device's robust design and wide temperature range make it suitable for industrial HMIs. With its graphics capabilities and high performance, it is ideal for smart appliances, control panels, and kiosks.
Recommended
IoT Gateway
The STM32H7B3ZIT6 is an ideal platform for IoT gateways, providing high processing power and multiple connectivity options. It can aggregate data from various sensors and devices, process it locally, and transmit to the cloud via Ethernet or Wi-Fi (through external modules). The device's Ethernet MAC enables wired connectivity, while USB OTG supports external modems. The large memory allows buffering of sensor data and running edge analytics. The device's hardware cryptographic acceleration ensures secure communication. The STM32H7B3ZIT6 supports multiple protocols like MQTT and HTTP via software stacks. Its low-power modes help reduce energy consumption in always-on gateways. The device's wide temperature range makes it suitable for outdoor installations. With its high performance and connectivity, it is perfect for smart city, agriculture, and industrial IoT applications.
Recommended
Recommended Products Summary
Engineering reference data for STM32H7B3ZIT6 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32H7B3ZIT6Q | STM32H743ZIT6 | STM32H753ZIT6 | STM32H750ZIT6 | STM32H723ZIT6 |
|---|---|---|---|---|---|---|
| Package | LQFP-144 | LQFP-144 - same | LQFP-144 - same | LQFP-144 - same | LQFP-144 - same | LQFP-144 - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core Clock | 280 MHz | 280 MHz | 400 MHz | 400 MHz | 400 MHz | 550 MHz |
| Flash Memory | 2 MB | 2 MB | 2 MB | 2 MB | 128 KB | 1 MB |
| SRAM | 1.4 MB | 1.4 MB | 1 MB | 1 MB | 1 MB | 320 KB |
| Supply Voltage | 1.62V to 3.6V | 1.62V to 3.6V | 1.62V to 3.6V | 1.62V to 3.6V | 1.62V to 3.6V | 1.62V to 3.6V |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit |
| Ethernet | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Larger SRAM (1.4 MB) compared to STM32H743ZIT6 (vs STM32H743ZIT6)
- Lower clock speed (280 MHz) but lower power consumption (vs STM32H743ZIT6)
- Includes JPEG codec and Chrom-ART Accelerator (vs STM32H743ZIT6)
Design Notes
The STM32H7B3ZIT6 requires a stable power supply. Use a 100nF ceramic capacitor on each VDD pin and a 4.7uF capacitor on the main VDD rail. For the VDDA pin, use a 1uF capacitor and a ferrite bead to isolate analog noise. Ensure the VBAT pin is connected to a backup battery or tied to VDD if not used.
For the LQFP-144 package, ensure proper grounding with a solid ground plane. Place decoupling capacitors close to the power pins. For high-speed interfaces like Ethernet and USB, use controlled impedance traces and keep trace lengths short. The STM32H7B3ZIT6 has multiple ground pins; connect all of them to the ground plane to minimize noise.
The STM32H7B3ZIT6 can dissipate significant power at 280 MHz. The LQFP-144 package has a thermal resistance of approximately 40Β°C/W. For high-current applications, ensure adequate airflow or a heatsink. The maximum junction temperature is 125Β°C, so calculate the power dissipation and ensure the ambient temperature is within limits.
Compliance Information
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified; for automotive, consider STM32H7A3 or other automotive-grade variants.
