SN74HCS137-Q1 3-to-8 Line Decoder/Demultiplexer Texas Instruments SN74HCS137-Q1 3-to-8 Line Decoder/Demultiplexer is a three to eight decoder with latched address bits, one active-low output enable, and one standard output enable. The Texas Instruments SN74HCS137-Q1 devices are AEC-Q100 qualified for automotive applications.