STM32H735RGT6 - 550MHz Cortex-M7 MCU with 1MB Flash | STMicroelectronics
MPN: STM32H735RGT6 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $10 | $1,000.00 |
| 500 | $9 | $4,500.00 |
| 1,000 | $8.1 | $8,100.00 |
Drop-in alternatives for STM32H735RGT6 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:
STM32H743RGT6
β Drop-Inπ Reference alternative (not in catalog)
STM32H750RBT6
β Drop-Inπ Reference alternative (not in catalog)
STM32H753RGT6
β Drop-Inπ Reference alternative (not in catalog)
STM32H745RGT6
β Drop-Inπ Reference alternative (not in catalog)
STM32H735RGT6 Maximum Ratings & Electrical Characteristics
| Core | Arm Cortex-M7 |
| Max Clock Speed | 550 MHz |
| Flash Memory | 1 MB |
| SRAM | 564 KB |
| Package | LQFP64 (10x10 mm) |
| Supply Voltage | 1.62V to 3.6V |
| Operating Temperature | -40Β°C to +85Β°C |
| GPIO Pins | 54 |
| ADC | 16-bit, 3.6 MSPS |
| DAC | 12-bit |
| USART | 5 |
| SPI | 4 |
| I2C | 4 |
| FDCAN | 2 |
| USB | 2 (OTG FS/HS) |
| Ethernet | 1 (MAC) |
| Cryptographic Acceleration | AES, DES, 3DES, SHA-1, SHA-256 |
| CoreMark | 2.14 CoreMark/MHz |
| Process Technology | 40nm |
| RoHS | Compliant |
STM32H735RGT6 Pin Configuration
| Pin 1 | VBAT β Backup battery supply |
| Pin 2 | PC13 β GPIO / RTC tamper |
| Pin 3 | PC14 β GPIO / OSC32_IN |
| Pin 4 | PC15 β GPIO / OSC32_OUT |
| Pin 5 | PF0 β GPIO |
| Pin 6 | PF1 β GPIO |
| Pin 7 | NRST β Reset (active low) |
| Pin 8 | PC0 β GPIO / ADC |
| Pin 9 | PC1 β GPIO / ADC |
| Pin 10 | PC2 β GPIO / ADC |
| Pin 11 | PC3 β GPIO / ADC |
| Pin 12 | VDD β Digital power supply |
| Pin 13 | VSS β Ground |
| Pin 14 | PC4 β GPIO |
| Pin 15 | PC5 β GPIO |
| Pin 16 | PB0 β GPIO / ADC |
| Pin 17 | PB1 β GPIO / ADC |
| Pin 18 | PB2 β GPIO |
| Pin 19 | PF2 β GPIO |
| Pin 20 | PF3 β GPIO |
| Pin 21 | PF4 β GPIO |
| Pin 22 | PF5 β GPIO |
| Pin 23 | PF6 β GPIO |
| Pin 24 | PF7 β GPIO |
| Pin 25 | PF8 β GPIO |
| Pin 26 | PF9 β GPIO |
| Pin 27 | PF10 β GPIO |
| Pin 28 | PF11 β GPIO |
| Pin 29 | PF12 β GPIO |
| Pin 30 | PF13 β GPIO |
| Pin 31 | PF14 β GPIO |
| Pin 32 | PF15 β GPIO |
| Pin 33 | VDD β Digital power supply |
| Pin 34 | VSS β Ground |
| Pin 35 | PA0 β GPIO / ADC / WKUP |
| Pin 36 | PA1 β GPIO / ADC |
| Pin 37 | PA2 β GPIO / USART2_TX |
| Pin 38 | PA3 β GPIO / USART2_RX |
| Pin 39 | PA4 β GPIO / DAC |
| Pin 40 | PA5 β GPIO / DAC |
| Pin 41 | PA6 β GPIO / SPI1_MISO |
| Pin 42 | PA7 β GPIO / SPI1_MOSI |
| Pin 43 | PA8 β GPIO / USB_OTG_FS_SOF |
| Pin 44 | PA9 β GPIO / USB_OTG_FS_VBUS |
| Pin 45 | PA10 β GPIO / USB_OTG_FS_ID |
| Pin 46 | PA11 β GPIO / USB_OTG_FS_DM |
| Pin 47 | PA12 β GPIO / USB_OTG_FS_DP |
| Pin 48 | PA13 β GPIO / SWDIO |
| Pin 49 | PA14 β GPIO / SWCLK |
| Pin 50 | PA15 β GPIO / JTDI |
| Pin 51 | PB3 β GPIO / JTDO |
| Pin 52 | PB4 β GPIO / NJTRST |
| Pin 53 | PB5 β GPIO |
| Pin 54 | PB6 β GPIO / I2C1_SCL |
| Pin 55 | PB7 β GPIO / I2C1_SDA |
| Pin 56 | PB8 β GPIO / I2C1_SCL |
| Pin 57 | PB9 β GPIO / I2C1_SDA |
| Pin 58 | VDD β Digital power supply |
| Pin 59 | VSS β Ground |
| Pin 60 | PB10 β GPIO / I2C2_SCL |
| Pin 61 | PB11 β GPIO / I2C2_SDA |
| Pin 62 | PB12 β GPIO / SPI2_NSS |
| Pin 63 | PB13 β GPIO / SPI2_SCK |
| Pin 64 | PB14 β GPIO / SPI2_MISO |
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
STM32H735RGT6 is suitable for 6 applications: Industrial Control Systems, IoT Gateways, Motor Drives, Audio Processing, Smart Home Hubs, Medical Devices.
Industrial Control Systems
The STM32H735RGT6 is ideal for industrial control systems due to its high-speed 550 MHz Cortex-M7 core, advanced timers, and multiple communication interfaces (USART, SPI, I2C, FDCAN). It can handle complex real-time control algorithms, such as motor control and PLC logic, with low latency. The device's 16-bit ADC with 3.6 MSPS ensures precise analog signal acquisition for sensors and feedback loops. Its wide operating temperature range (-40Β°C to +85Β°C) and robust design make it suitable for harsh industrial environments. The FDCAN interface enables seamless integration into CAN-based industrial networks, while the Ethernet MAC supports industrial Ethernet protocols like EtherCAT and PROFINET. The cryptographic acceleration ensures secure communication in industrial IoT applications. Overall, the STM32H735RGT6 provides the performance and connectivity needed for advanced industrial automation.
Recommended
IoT Gateways
The STM32H735RGT6 is well-suited for IoT gateways that require high processing power, multiple connectivity options, and security. With its 550 MHz Cortex-M7 core, it can handle protocol stacks (MQTT, CoAP), data aggregation, and edge computing tasks. The device includes Ethernet MAC, USB OTG, and multiple UART/SPI/I2C interfaces, allowing connection to various sensors and communication modules (Wi-Fi, LoRa, cellular). The hardware cryptographic acceleration (AES, SHA) ensures secure data transmission and device authentication. The 1 MB flash and 564 KB SRAM provide ample space for firmware and data buffering. The low-power modes help optimize energy consumption in battery-powered gateways. The STM32H735RGT6's rich peripheral set and security features make it a robust choice for building reliable and secure IoT gateways.
Recommended
Motor Drives
The STM32H735RGT6 is an excellent choice for motor drive applications, including brushless DC (BLDC) and permanent magnet synchronous motors (PMSM). Its 550 MHz Cortex-M7 core can execute field-oriented control (FOC) algorithms with high precision and low latency. The device features advanced timers with complementary PWM outputs and dead-time insertion, essential for driving three-phase inverters. The 16-bit ADC with 3.6 MSPS enables fast and accurate current sensing, while the analog comparators provide overcurrent protection. The FDCAN interface allows integration into industrial motor control networks. The high clock speed ensures smooth real-time performance, and the rich peripheral set simplifies the design of complete motor drive systems. The STM32H735RGT6's combination of performance, analog features, and connectivity makes it a top choice for advanced motor control.
Recommended
Audio Processing
The STM32H735RGT6 is suitable for high-end audio processing applications, such as audio interfaces, effects processors, and smart speakers. Its 550 MHz Cortex-M7 core with double-precision FPU can handle complex audio algorithms like FIR/IIR filtering, FFT, and audio codecs. The device includes multiple SAI (serial audio interfaces) for connecting to audio codecs and DACs, and I2S support for digital audio streaming. The 12-bit DAC can be used for analog audio output, while the high-speed ADC can capture analog audio signals. The large SRAM (564 KB) allows buffering of audio samples, and the cryptographic acceleration can be used for secure audio streaming. The STM32H735RGT6's processing power and audio-specific peripherals make it an ideal platform for professional and consumer audio products.
Recommended
Smart Home Hubs
The STM32H735RGT6 is a powerful choice for smart home hubs that need to manage multiple wireless protocols, process sensor data, and provide a user interface. Its 550 MHz Cortex-M7 core can run a real-time operating system (RTOS) and handle communication stacks for Zigbee, Z-Wave, Bluetooth, and Wi-Fi via external modules. The device offers multiple UART, SPI, and I2C interfaces to connect to various wireless transceivers and sensors. The Ethernet MAC enables wired connectivity for a stable backbone. The cryptographic acceleration ensures secure communication and device authentication. The 1 MB flash and 564 KB SRAM provide ample resources for hub applications. The STM32H735RGT6's performance and connectivity make it an excellent foundation for a smart home hub.
Recommended
Medical Devices
The STM32H735RGT6 is suitable for medical devices that require high processing power, precise analog measurement, and reliable operation. Its 550 MHz Cortex-M7 core can handle complex signal processing algorithms for applications like patient monitoring, diagnostic equipment, and portable medical devices. The 16-bit ADC with 3.6 MSPS ensures accurate acquisition of biomedical signals (ECG, EEG, etc.). The device's low-power modes help extend battery life in portable devices. The cryptographic acceleration can be used to secure patient data. The wide operating temperature range and industrial-grade reliability make it suitable for medical environments. The STM32H735RGT6's combination of performance, analog precision, and security makes it a strong candidate for advanced medical electronics.
Recommended
Recommended Products Summary
Engineering reference data for STM32H735RGT6 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32H743RGT6 | STM32H750RBT6 | STM32H753RGT6 | STM32H745RGT6 | i.MX RT1052 | RZ/A1L |
|---|---|---|---|---|---|---|---|
| Package | LQFP64 | LQFP64 | LQFP64 | LQFP64 | LQFP64 | BGA196 | BGA256 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | NXP Semiconductors | Renesas Electronics |
| Max Clock Speed | 550 MHz | 480 MHz | 480 MHz | 480 MHz | 480 MHz | 600 MHz | 400 MHz |
| Flash Memory | 1 MB | 2 MB | 128 KB | 2 MB | 1 MB | 0 (external flash) | 3 MB |
| SRAM | 564 KB | 1 MB | 128 KB | 1 MB | 1 MB | 512 KB | 3 MB |
| ADC Resolution | 16-bit | 16-bit | 16-bit | 16-bit | 16-bit | 12-bit | 12-bit |
| Ethernet MAC | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Cryptographic Acceleration | Yes (AES, DES, 3DES, SHA-1, SHA-256) | Yes | Yes | Yes | Yes | Yes (AES, SHA) | No |
Key Differentiators
- Higher maximum clock speed (550 MHz) compared to STM32H743RGT6 (480 MHz) (vs STM32H743RGT6)
- Integrated hardware cryptographic acceleration (AES, SHA) for secure IoT applications (vs RZ/A1L)
- Pin-compatible with other STM32H7 LQFP64 variants, enabling easy migration (vs i.MX RT1052)
Design Notes
The STM32H735RGT6 requires a stable power supply. Connect a 100nF ceramic capacitor to each VDD pin and a 4.7uF bulk capacitor to the main VDD rail. The VDDA pin must be connected to a clean analog supply, and VREF+ should be decoupled with a 1uF capacitor. For battery-powered applications, use the VBAT pin for backup power and implement low-power modes to extend battery life.
For high-speed interfaces like USB and Ethernet, follow the layout guidelines in the datasheet. Keep traces short and impedance-controlled (90 ohms differential for USB, 100 ohms for Ethernet). Place the crystal oscillator close to the OSC_IN/OSC_OUT pins and ensure proper grounding. Use a solid ground plane and avoid routing high-speed signals over split planes.
The STM32H735RGT6 can dissipate significant power at 550 MHz. Ensure adequate thermal management by providing a copper pour on the PCB and, if necessary, a heatsink. The LQFP64 package has a thermal resistance of approximately 40Β°C/W (theta_JA). For high ambient temperatures, consider reducing the clock speed or using a fan.
Compliance Information
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified - this is an industrial-grade device.
