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用的是英文原稿，可能写这篇的时候已经出中文了。

STM32F407 数据手册要点摘录

设备摘要/特性

1. ARM Cortex-M4 32b MCU+FPU, 210DMIPS
2. up to 1MB Flash/192+4KB RAM
3. Up to 17 timers:

up to twelve 16-bit and two 32-bit timers up to 168 MHz, each with up to 4
IC/OC/PWM or pulse counter and quadrature（正交） (incremental，增量) encoder input

4. 3×12-bit, 2.4 MSPS A/D converters:

up to 24 channels and 7.2 MSPS in triple interleaved mode(三重交替模式）

5. 2×12-bit D/A converters
6. Up to 140 I/O ports with interrupt capability
   – Up to 136 fast I/Os up to 84 MHz
   – Up to 138 5 V-tolerant I/Os
7. 15 communication interfaces :
   – Up to 3 × I2C interfaces
   – Up to 4 USARTs+2 UARTs
   – Up to 3 SPIs (42 Mbits/s)
   – 2 × CAN interfaces (2.0B Active)
   – SDIO/MMC interface
8. Ethernet and the camera interface

描述

此表引自STMF407X数据手册，2015
Table 2. STM32F405xx and STM32F407xx: features and peripheral counts (continued)

device overview

此处略

引脚排列和引脚说明

FT: 5 V tolerant I/O
Table 7. STM32F40x pin and ball definitions

查看引脚类型、是否为5v容忍引脚

Table 9. Alternate function mapping（复用功能映射）

此表记录了复用功能映射，非常重要，共10页

电气特性

参数条件

Unless otherwise specified:

1. all voltages are referenced to VSS.
2. typical data are based on TA = 25 °C, VDD = 3.3 V (for the 1.8 V ≤ VDD ≤ 3.6 V voltage range).

绝对最大额定值

Exposure to maximum rating conditions for extended periods may affect
device reliability.

Input voltage on 5v tolerant pin：VSS-0.3~VDD+4V
Input voltage on any other pin:VSS-0.3~4V

工作条件

通用工作条件
VDDA=VDD: 1.8-3.6V
VDDA必须与VDD相连
VREF+:1.8-3.6V
VSSA必须与VREF-相连
VSS必须与VSSA相连
VSS=VSSA=VREF-=GND
VBAT: 1.65-3.6V
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最大结点温度：125℃