74hc153 chip is double 4 choice 1 data selector\/multiplex switching circuit chip, the device is fully buffered, each selector data input information according to the address input A, B to make a selection, and output by Y. Each selector has a strobe input, and the selector only works when the strobe input is low logic level. If the strobe input is high logic level, the corresponding selector output is low.
The 74hc153 is a dual 4-option 1 data selector\/multiplex switch. When the gate terminal Q is at low power level, the level of output Y can be converted by selecting different levels of input A and B.