STM32F446ME

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产品概述

描述

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.

所有功能
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

V_BAT 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
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