STM32F446ME數(shù)據(jù)手冊ST中文資料規(guī)格書

描述 Description

The STM32F446xC/E 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 supporting all Arm? single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) that enhances application security.

The STM32F446xC/E devices incorporate high-speed embedded memories (Flash memory up to 512 Kbytes, up to 128 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.

特性 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
?512 Kbytes of Flash memory
?128 Kbytes of SRAM
?Flexible external memory controller with up to 16-bit data bus: SRAM, PSRAM, SDRAM/LPSDR SDRAM, NOR/NAND Flash memories
?Dual mode QuadSPI interface
? LCD parallel interface, 8080/6800 modes
? 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 plus 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: 2x watchdog, 1x SysTick timer and up to twelve 16-bit and two 32-bit timers up to 180 MHz, each with up to four IC/OC/PWM or pulse counter
? Debug mode
?SWD and JTAG interfaces
?Cortex?-M4 Trace Macrocell?
? Up to 114 I/O ports with interrupt capability
?Up to 111 fast I/Os up to 90 MHz
?Up to 112 5 V-tolerant I/Os
? Up to 20 communication interfaces
?SPDIF-Rx
?Up to 4× I2C interfaces (SMBus/PMBus)
?Up to four USARTs and two UARTs (11.25 Mbit/s, ISO7816 interface, LIN, IrDA, modem control)
?Up to four SPIs (45 Mbits/s), three with muxed I2S for audio class accuracy via internal audio PLL or external clock
?2x SAI (serial audio interface)
?2× CAN (2.0B Active)
?SDIO interface
?Consumer electronics control (CEC) I/F
? 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
?Dedicated USB power rail enabling on-chip PHYs operation throughout the entire MCU power supply range
? 8- to 14-bit parallel camera interface up to 54 Mbytes/s
? CRC calculation unit
? RTC: subsecond accuracy, hardware calendar
? 96-bit unique ID