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Product Descriptions

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. 

? Up to three I2Cs

? Six SPIs, two I2Ss full duplex. To achieve audio class accuracy, the I2S peripherals can be clocked via a dedicated internal audio PLL or via an external clock to allow synchronization.

? Four USARTs plus four UARTs

? An USB OTG full-speed and a USB OTG high-speed with full-speed capability (with the ULPI), 

? Two CANs

? One SAI serial audio interface

? An SDIO/MMC interface

? Ethernet and camera interface

? LCD-TFT display controller

? Chrom-ART Accelerator?.

Advanced peripherals include an SDIO, a flexible memory control (FMC) interface, a camera interface for CMOS sensors. Refer to Table 2: STM32F427xx and STM32F429xx features and peripheral counts for the list of peripherals available on each part number. 

The STM32F427xx and STM32F429xx devices operates in the –40 to +105 °C temperature range from a 1.7 to 3.6 V power supply. 

The supply voltage can drop to 1.7 V with the use of an external power supply supervisor (refer to Section 3.17.2: Internal reset OFF). A comprehensive set of power-saving mode allows the design of low-power applications.

The STM32F427xx and STM32F429xx devices offer devices in 8 packages ranging from 100 pins to 216 pins. The set of included peripherals changes with the device chosen.

Product Features

? Core: Arm? 32-bit Cortex?-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator?) allowing 0-wait state execution from Flash memory, frequency up to 180 MHz, MPU, 225 DMIPS/1.25 DMIPS/MHz(Dhrystone 2.1), and DSP instructions

? Memories

– Up to 2 MB of Flash memory organized into two banks allowing read-while-write

– Up to 256+4 KB of SRAM including 64-KB of CCM (core coupled memory) data RAM

– Flexible external memory controller with up to 32-bit data bus: SRAM, PSRAM, SDRAM/LPSDR SDRAM, Compact Flash/NOR/NAND memories

? LCD parallel interface, 8080/6800 modes

? LCD-TFT controller with fully programmable resolution (total width up to 4096 pixels, total height up to 2048 lines and pixel clock up to 

83 MHz)

? Chrom-ART Accelerator? for enhanced graphic content creation (DMA2D)

? Clock, reset and supply management

– 1.7 V to 3.6 V application supply and I/Os

– POR, PDR, PVD and BOR

– 4-to-26 MHz crystal oscillator

– Internal 16 MHz factory-trimmed RC (1 accuracy)

– 32 kHz oscillator for RTC with calibration

– Internal 32 kHz RC with calibration

? Low power

– Sleep, Stop and Standby modes

– VBAT supply for RTC, 20×32 bit backup registers + optional 4 KB backup SRAM

? 3×12-bit, 2.4 MSPS ADC: up to 24 channels and 7.2 MSPS in triple interleaved mode

? 2×12-bit D/A converters

? General-purpose DMA: 16-stream DMA controller with FIFOs and burst support

? Up to 17 timers: up to twelve 16-bit and two 32-bit timers up to 180 MHz, each with up to 4 IC/OC/PWM or pulse counter and quadrature 

(incremental) encoder input

? Debug mode

– SWD & JTAG interfaces

– Cortex-M4 Trace Macrocell?

? Up to 168 I/O ports with interrupt capability

– Up to 164 fast I/Os up to 90 MHz

– Up to 166 5 V-tolerant I/Os

? Up to 21 communication interfaces

– Up to 3 × I2C interfaces (SMBus/PMBus)

– Up to 4 USARTs/4 UARTs (11.25 Mbit/s, ISO7816 interface, LIN, IrDA, modem control)

– Up to 6 SPIs (45 Mbits/s), 2 with muxed full-duplex I2S for audio class accuracy via internal audio PLL or external clock

– 1 x SAI (serial audio interface)

– 2 × CAN (2.0B Active) and SDIO interface

? Advanced connectivity

– USB 2.0 full-speed device/host/OTG controller with on-chip PHY

– USB 2.0 high-speed/full-speed device/host/OTG controller with dedicated DMA, on-chip full-speed PHY and ULPI

– 10/100 Ethernet MAC with dedicated DMA: supports IEEE 1588v2 hardware, MII/RMII

? 8- to 14-bit parallel camera interface up to 54 Mbytes/s

? True random number generator

? CRC calculation unit

? RTC: subsecond accuracy, hardware calendar

? 96-bit unique ID

Actual product photos

Product Data Manual：

For more product information, please download the PDF

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