The MM54C154 MM74C154 one of sixteen decoder is a monolithic complementary MOS (CMOS) integrated circuit constructed with N- and P-channel enhancement transistors The device is provided with two strobe inputs both of which must be in the logical ``0'' state for normal operation If either strobe input is in the logical ``1'' state all 16 outputs will go to the logical ``1'' state To use the product as a demultiplexer one of the strobe inputs serves as a data input terminal while the other strobe input must be maintained in the logical ``0'' state The information will then be transmitted to the selected output as determined by the 4-line input address