TTL5V转3VPCB
实现TTL5.0V电压和3.0V之间的串口转换板。...
实现TTL5.0V电压和3.0V之间的串口转换板。...
USB转TTL串口(CH340T)原理图,打板可用!!...
USB-TTL-PL2303的原理图,实测可用,也可用自己更改,封装都是常见的封装。...
This device contains four independent gates each of whichperforms the logic AND function....
7402 TTL 2输入端四或非门:...