74HC154

The 74HC154; 74HCT154 are high-speed Si-gate CMOSdevices and are pin compatible with low power SchottkyTTL (LSTTL). They are specified in compliance withJEDEC standard no. 7A.

The 74HC154; 74HCT154 decoders accept four activeHIGH binary address inputs and provide 16 mutuallyexclusive active LOW outputs. The two-input enable gatecanbeusedtostrobethedecodertoeliminatethenormaldecoding "glitches" on the outputs, or can be used for theexpansion of the decoder.

The enable gate has two ANDed inputs which must beLOW to enable the outputs.

The 74HC154; 74HCT154 can be used as a 1-to-16demultiplexer by using one of the enable inputs as themultiplexed data input.

WhentheotherenableinputisLOW,theaddressedoutputwill follow the state of the applied data.