STM32H735IGT6

Product Overview

The STM32H735IGT6 is a high-performance 32-bit microcontroller from STMicroelectronics based on the Arm Cortex-M7 core, operating at up to 550 MHz. It integrates 1MB of Flash memory, 564KB of RAM, instruction and data caches, a floating-point unit (FPU), DSP instructions, an external memory interface and an integrated SMPS.

Designed for demanding embedded applications, the STM32H735IGT6 combines high processing performance with advanced connectivity, analog peripherals, graphics and multimedia support, and hardware security features. It is supplied in a 176-pin LQFP package and supports an operating temperature range of -40°C to +85°C. ST lists the exact ordering part as an active product. 

Key Features

• 32-bit Arm Cortex-M7 processor

• CPU frequency up to 550 MHz

• Double- and single-precision floating-point support

• DSP instruction set

• 1MB embedded Flash memory

• 564KB RAM

• 32KB instruction cache and 32KB data cache

• Memory Protection Unit (MPU)

• External memory interface

• Integrated switched-mode power supply (SMPS)

• Hardware cryptographic accelerator

• Multiple high-speed communication interfaces

• USB On-The-Go support

• Ethernet MAC with IEEE 1588 support

• FDCAN interfaces

• 12-bit ADC and 12-bit DAC resources

• Timers for PWM, capture and control

• Serial Wire Debug (SWD)

• 1.62V to 3.6V supply range

• -40°C to +85°C operating temperature for the exact T6 variant

• LQFP-176 package

• ECOPACK2 compliant

Technical Specifications

Specifications and ordering details are based on STMicroelectronics' official product and store listings. 

Processor & Architecture

The STM32H735IGT6 features a high-performance Arm Cortex-M7 processor running at up to 550 MHz. Its architecture includes a floating-point unit, DSP instructions, a memory protection unit and separate instruction and data caches to improve computational performance.

These resources make the device suitable for real-time signal processing, sophisticated control algorithms, high-speed data processing and demanding embedded applications.

Memory & Storage

The STM32H735IGT6 integrates:

• 1MB embedded Flash memory

• 564KB RAM

• 32KB instruction cache

• 32KB data cache

• External memory interface

• Memory Protection Unit

The integrated memory supports application firmware, real-time processing and data buffering, while the external memory interface provides additional system-design flexibility where larger storage or working memory is required.

Analog Peripherals

The STM32H735IGT6 includes analog resources for measurement, monitoring and control applications.

• 12-bit analog-to-digital conversion

• 12-bit digital-to-analog conversion

• Analog inputs for sensor and signal acquisition

• Support for embedded control and measurement systems

The number of usable channels and the electrical characteristics depend on the selected pins and operating conditions; consult the official datasheet for exact limits.

Timer & PWM Resources

The MCU provides a range of timer peripherals for real-time control and signal generation.

• General-purpose timers

• Advanced timing and PWM functions

• Input capture and output compare capabilities

• Time-base generation

• Timing support for motor, actuator and power-control applications

Timer capabilities and pin multiplexing should be checked against the datasheet and reference manual when designing the target application.

Communication & Connectivity

The STM32H735IGT6 supports multiple communication interfaces for connecting external memories, sensors, controllers and networked equipment.

• Ethernet MAC with IEEE 1588 support

• USB On-The-Go

• FDCAN

• SPI interfaces

• I²C interfaces

• USART/UART interfaces

• I²S audio interfaces

• External memory interface

• Serial Wire Debug (SWD)

Actual interface availability depends on peripheral configuration and pin assignments. External PHY or transceiver components may be required for certain interfaces.

Clock & Power Management

The STM32H735IGT6 combines high-speed processing with flexible power and clock management resources.

• High-performance clock system

• Integrated SMPS

• Multiple internal and external clock-source options

• Reset and power-monitoring functions

• Peripheral clock control

• Supply voltage from 1.62V to 3.6V

Refer to the official datasheet and reference manual for oscillator options, clock-tree limits and power requirements.

Low-Power Operation

Although designed for high-performance applications, the STM32H735IGT6 includes power-management features to help control energy consumption.

• Integrated SMPS for power-conversion efficiency

• Peripheral clock management

• Configurable operating modes

• Power-management support for embedded applications

Actual power consumption depends on clock frequency, enabled peripherals, workload, supply voltage and the selected operating mode.

Power Management

The device supports a 1.62V to 3.6V supply range and incorporates an internal switched-mode power supply.

• Supply voltage: 1.62V to 3.6V

• Integrated SMPS

• Power-on and reset management

• Embedded power-monitoring functions

• Configurable peripheral clock control

Power-supply design should follow ST's recommendations for decoupling, SMPS components, grounding and PCB layout.

Security & Data Integrity

The STM32H735IGT6 includes hardware and architectural resources to support secure and robust embedded software.

• Hardware cryptographic accelerator

• Memory Protection Unit

• Flash memory protection mechanisms

• CRC support

• Unique device identification

• Debug and programming access through SWD

The available cryptographic functions and protection options should be verified in the official documentation before selecting the MCU for a security-critical design.

Development & Debugging

The STM32H735IGT6 supports the STM32 development ecosystem, including STM32Cube software tools and standard SWD-based programming and debugging.

Development resources include:

• STM32CubeIDE

• STM32CubeMX configuration tools

• STM32CubeH7 software packages

• ST-LINK programming and debugging tools

• Reference manuals, datasheets and application notes

These resources help engineers configure peripherals, develop firmware and debug high-performance embedded applications.

Applications

The STM32H735IGT6 is suitable for applications such as:

• Industrial automation

• High-performance embedded control

• Motor and actuator control

• Signal processing

• Networked industrial equipment

• Data acquisition and monitoring

• Audio and multimedia systems

• Instrumentation

• Smart appliances

• Communication gateways

• Embedded systems requiring high CPU performance

Benefits

• High-performance 550 MHz Cortex-M7 core

• Integrated 1MB Flash and 564KB RAM

• Floating-point and DSP processing

• Instruction and data caches

• External memory expansion capability

• Integrated SMPS

• Ethernet and USB connectivity

• FDCAN support

• Analog and timer peripherals

• Hardware cryptographic accelerator

• Broad STM32 software and development-tool ecosystem

• Industrial-grade LQFP-176 package

Packaging & Ordering Information

• Part Number: STM32H735IGT6

• Manufacturer: STMicroelectronics

• Device Family: STM32H735xG

• Package: LQFP-176

• Package Code: LQFP176

• Package Size: 24 × 24 × 1.4 mm

• Packing Type: Tray

• Supply Voltage: 1.62V to 3.6V

• Operating Temperature: -40°C to +85°C

• Product Status: Active

• Grade: Industrial

• RoHS: ECOPACK2

The official ST store identifies the STM32H735IGT6 as an active, tray-packaged LQFP-176 device. <Cite refs={["turn723065search1","turn723065search0"]}/>

Datasheet

For complete electrical characteristics, pin configuration, memory architecture, ADC specifications, timer configuration, communication interfaces, absolute maximum ratings, and application information, please refer to the official STMicroelectronics documentation.

Datasheet: Official STM32H735IGT6 Datasheet

Frequently Asked Questions

What is the STM32H735IGT6?

The STM32H735IGT6 is a high-performance 32-bit microcontroller based on the Arm Cortex-M7 core, with a maximum frequency of 550 MHz, 1MB Flash and 564KB RAM.

What is the maximum CPU frequency?

The maximum CPU frequency is 550 MHz.

How much Flash memory does it have?

It provides 1MB of embedded Flash memory.

How much RAM does it have?

It provides 564KB of RAM.

What package does the STM32H735IGT6 use?

The exact part uses an LQFP-176 package measuring 24 × 24 × 1.4 mm.

What is its operating voltage?

The specified supply-voltage range is 1.62V to 3.6V.

What is its operating temperature range?

The exact T6 ordering variant is specified for -40°C to +85°C.

Is the STM32H735IGT6 an active product?

Yes. STMicroelectronics lists the exact part number as active and in volume production.

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