Overview
The STM32F746BGT7 is a high-performance microcontroller from STMicroelectronics, based on the ARM Cortex-M7 32-bit RISC core. This device operates at a frequency of up to 216 MHz and features a single floating-point unit (SFPU) that supports all ARM single-precision data-processing instructions and data types. It also includes a full set of DSP instructions and a memory protection unit (MPU) to enhance application security.
The microcontroller incorporates high-speed embedded memories, including up to 1 Mbyte of Flash memory, 320 Kbytes of SRAM (with 64 Kbytes of data TCM RAM and 16 Kbytes of instruction TCM RAM), and 4 Kbytes of backup SRAM available in the lowest power modes. It also features an extensive range of enhanced I/Os and peripherals connected to multiple buses and interconnects.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | ARM 32-bit Cortex-M7 CPU with FPU, adaptive real-time accelerator (ART Accelerator™), and L1-cache: 4KB data cache and 4KB instruction cache |
| Frequency | Up to 216 MHz |
| Flash Memory | Up to 1 MB |
| OTP Memory | 1024 bytes |
| SRAM | 320 KB (including 64 KB of data TCM RAM and 16 KB of instruction TCM RAM) + 4 KB of backup SRAM |
| External Memory Controller | Flexible external memory controller with up to 32-bit data bus: SRAM, PSRAM, SDRAM/LPSDR SDRAM, NOR/NAND memories |
| ADCs | Three 12-bit ADCs, up to 24 channels and 7.2 MSPS in triple interleaved mode |
| DACs | Two 12-bit D/A converters |
| Timers | Up to thirteen 16-bit timers and two 32-bit timers |
| Communication Interfaces | Up to 4 USARTs/4 UARTs, up to 6 SPIs, 2 x SAIs, 2 x CANs (2.0B active), USB 2.0 full-speed/device/host/OTG controller, 10/100 Ethernet MAC |
| Package | LQFP 208 28x28x1.4 mm |
| Operating Temperature | Industrial grade, -40°C to 105°C |
Key Features
- High-performance ARM Cortex-M7 32-bit RISC core with FPU and DSP instructions
- Up to 1 MB of Flash memory and 320 KB of SRAM
- Three 12-bit ADCs and two 12-bit DACs
- Thirteen 16-bit timers and two 32-bit timers
- Advanced communication interfaces including USB, Ethernet, SPI, I2C, and CAN
- Low-power modes: Sleep, Stop, and Standby
- True random number generator and CRC calculation unit
- RTC with subsecond accuracy and hardware calendar
- 96-bit unique ID
- LCD-TFT controller up to XGA resolution with dedicated Chrom-ART Accelerator™
Applications
- Industrial automation and control systems
- Medical devices requiring high performance and precision
- Aerospace and defense applications
- Automotive systems, including advanced driver-assistance systems (ADAS)
- Consumer electronics, such as smart home devices and wearables
- IoT devices requiring robust communication and processing capabilities
Q & A
- What is the core architecture of the STM32F746BGT7?
The STM32F746BGT7 is based on the ARM Cortex-M7 32-bit RISC core with a single floating-point unit (SFPU) and DSP instructions.
- What is the maximum frequency of the STM32F746BGT7?
The maximum frequency is up to 216 MHz.
- How much Flash and SRAM memory does the STM32F746BGT7 have?
It has up to 1 MB of Flash memory and 320 KB of SRAM.
- What types of ADCs and DACs are available on the STM32F746BGT7?
It features three 12-bit ADCs and two 12-bit DACs.
- What are the low-power modes available on the STM32F746BGT7?
The device supports Sleep, Stop, and Standby modes.
- Does the STM32F746BGT7 support Ethernet communication?
Yes, it includes a 10/100 Ethernet MAC with dedicated DMA.
- What is the package type and size of the STM32F746BGT7?
The package type is LQFP 208, with dimensions of 28x28x1.4 mm.
- What is the operating temperature range of the STM32F746BGT7?
The operating temperature range is -40°C to 105°C for industrial grade.
- Does the STM32F746BGT7 have a true random number generator?
Yes, it includes a true random number generator (RNG).
- What display capabilities does the STM32F746BGT7 support?
It supports an LCD-TFT controller up to XGA resolution with a dedicated Chrom-ART Accelerator™.
