This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
sn74ahc138与sn74hc138有什么区别？是否可以互换互换使用？
AHC典型供电5，3.3；HC典型供电6，5，2。
AHC驱动电流能到+/-8mA，HC是+/-4mA。
输入的电平不一样。另外封装看看一样不一样。AHC有QFN的
