SN74LS156 Description
SN74LS156 Dual 1-of-4 Decoder/ Demultiplexer The SN74LS156 is a high speed Dual 1-of-4 Decoder/ Demultiplexer. This device has two decoders with mon 2-bit Address inputs and separate gated Enable inputs. Decoder “a” has an Enable gate with one active HIGH and one active LOW input.