max232典型电路图
时间: 2023-10-16 12:08:30 浏览: 129
典型的MAX232电路图如下所示:
VCC --> 5V电源引脚
GND --> 接地引脚
T1IN/T2IN --> TTL/CMOS信号输入引脚
T1OUT/T2OUT --> RS232信号输出引脚
R1IN/R2IN --> RS232信号输入引脚
R1OUT/R2OUT --> TTL/CMOS信号输出引脚
此电路的作用是将PC机的RS232电平和单片机的TTL电平互相转换。通过RS232 OUTPUTS端口,将TTL或CMOS信号转为RS232的信号输出,输出电平为正负12V,以便与电脑进行通信。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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