STC15W4K48S4引脚图

STC15W4K48S4的引脚图如下：

             ┌───┐
    RST --- 1 │   │ 40 --- P0.0
    T0  --- 2 │   │ 39 --- P0.1
    T1  --- 3 │   │ 38 --- P0.2
    T2  --- 4 │   │ 37 --- P0.3
    T3  --- 5 │   │ 36 --- P0.4
    T4  --- 6 │   │ 35 --- P0.5
    T5  --- 7 │   │ 34 --- P0.6
    T6  --- 8 │   │ 33 --- P0.7
    T7  --- 9 │   │ 32 --- P1.0
   INT0 --- 10 │   │ 31 --- P1.1
   INT1 --- 11 │   │ 30 --- P1.2
   INT2 --- 12 │   │ 29 --- P1.3
   INT3 --- 13 │   │ 28 --- P1.4
   INT4 --- 14 │   │ 27 --- P1.5
   INT5 --- 15 │   │ 26 --- P1.6
   INT6 --- 16 │   │ 25 --- P1.7
   INT7 --- 17 │   │ 24 --- P3.0
   ALE  --- 18 │   │ 23 --- P3.1
  WR#   --- 19 │   │ 22 --- P3.2
  RD#   --- 20 │   │ 21 --- P3.3
             └───┘

其中，P0.0到P0.7是端口0的引脚，P1.0到P1.7是端口1的引脚，P3.0到P3.3是端口3的引脚。根据引用中的描述，STC15W4K48S4的PCA_PWM只有两路PWM0和PWM1已经用来控制两个风机，而PWM7引脚是空闲的，所以可以使用PWM7引脚来控制第三个风机。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *2* *3* [STC15W4K48S4 它有6通道高精度PWM发生器](https://blog.csdn.net/xw_0104/article/details/51221462)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT3_1"}}] [.reference_item style="max-width: 100%"]
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