串口芯片CH552CH554 ￥3 0去看看 细匠电子企业店发布了 USB串口芯片 CH340 341 CH440 CH552 CH554 A B C S G K N R E T 串口芯片CH552CH554 ￥0.7 0去看看 科盛达电子模块发布了 USB串口芯片 CH340 341 CH440 CH552 CH554 A B C S G K N R E T 串口芯片CH552CH554 ￥0.7 0去看看 科盛达电子模块发布了 USB串口芯片 CH340 341 CH440 CH552 CH554 A B C S G K N R E T
