STM32F4xx英文數據手冊

　　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 up to XGA resolution with dedicated 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?