STM32F427IIH6TR Description

The high-performance Arm? Cortex?-M4 32-bit RISC core of the STM32F427IIH6TR chip operates at a frequency of up to 180 MHz. A floating point unit (FPU) single precision is a characteristic of the Cortex-M4 core that supports all Arm? singleprecision data-processing instructions and data formats. Additionally, it incorporates a memory protection unit (MPU) that improves program security together with the whole range of DSP instructions.

The STM32F427IIH6TR device includes a wide range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses, and a 32-bit multi-AHB bus matrix. It also includes high-speed embedded memories (Flash memory up to 2 Mbyte, up to 256 Kbytes of SRAM), up to 4 Kbytes of backup SRAM, and up to 4 Mbytes of backup SRAM.

All of the devices feature two general-purpose 32-bit timers, three 12-bit ADCs, two DACs, a low-power RTC, twelve general-purpose 16-bit timers, and two PWM timers for motor control. They also have both conventional and cutting-edge communication interfaces.

STM32F427IIH6TR Features

• 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

• 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

STM32F427IIH6TR Applications

• Printers, and scanners

• Alarm systems, video intercom, and HVAC

• Home audio appliances

• Motor drive and application control

• Medical equipment

• Industrial applications: PLC, inverters, circuit breakers