STM32F429IIT6

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Full model: STM32F429IIT6

Manufacturer: STMicroelectronics

Core architecture: ARM Cortex-M4 (with FPU and DSP instruction set)

Package: LQFP-144 (144-pin, low-power quad flat package)

Operating temperature: -40°C ~ +85°C (industrial grade)

Operating voltage: 1.8V ~ 3.6V (single power supply)

CPU main frequency: 180 MHz (maximum)

Flash memory: 2 MB (supports read and write protection)

SRAM: 256 KB (including 64 KB core coupled memory CCM)

Graphics acceleration: Chrom-ART Accelerator™ (increases graphics processing efficiency by 2 times)

Peripheral interface: USB OTG FS/HS, Ethernet MAC, 3x SPI/I2S, 4x USART, 2x CAN, 3x I2C

ADC/DAC: 3x 12-bit ADC (24 channels, 2.4 MSPS) / 2x 12-bit DAC

Timers: 17x (including 2x 32-bit timers, supporting PWM)

GPIO quantity: 114 (supporting 5V tolerant input)

Description

The STM32F427xx and STM32F429xx devices are based on the high-performance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 180 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision which supports all Arm® singleprecision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security. The STM32F427xx and STM32F429xx devices incorporate high-speed embedded memories (Flash memory up to 2 Mbyte, up to 256 Kbytes of SRAM), up to 4 Kbytes of backup SRAM, and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix. All devices offer three 12-bit ADCs, two DACs, a low-power RTC, twelve general-purpose 16-bit timers including two PWM timers for motor control, two general-purpose 32-bit timers. They also feature standard and advanced communication interfaces. 

Features

   1. High-performance graphics processing:

       - Integrated LTDC controller (supports RGB interface, maximum resolution XGA 1024×768).

       - Can directly drive TFT-LCD screen without external graphics chip.

   2. Rich storage expansion:

       - Support FMC (Flexible Memory Controller): can connect SRAM, SDRAM, NOR Flash (16-bit/32-bit bus).

       - Built-in Quad-SPI interface (supports external serial Flash memory mapping).

   3. Hardware security:

       - AES-128/192/256 encryption accelerator.

       - Unique device identifier (UID) and anti-tamper detection.

   4. Low power mode:

       - Multiple power saving modes (sleep/stop/standby), standby mode current as low as 2μA.

Applications

   1. Industrial HMI: touch screen control (combined with LTDC and SDRAM).

   2. Smart home: gateway device (Ethernet + wireless communication).

   3. Medical equipment: portable monitors (using low power mode).

   4. Drones: flight control systems (high-performance PWM output).

Pin function (key pins for LQFP-144 package)

Development support

   1. Tool chain

       - IDE: STM32CubeIDE, Keil MDK, IAR Embedded Workbench.

       - Debug interface: JTAG/SWD (standard 20-pin interface).

   2. Software library

       - STM32CubeF4: free HAL/LL library, including graphical configuration tool (STM32CubeMX).

   3. Evaluation board

       - STM32F429I-DISCO: integrated 2.4" QVGA LCD, SDRAM, gyroscope.

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