Radiation-tolerant, dual two-line to four-line decoders/demultiplexers with logic-level shifter

The SN54SC8T139-SEP contains two

two-to-four decoders with one active low output strobe G. When the

outputs of one channel are gated by the strobe input, they are all forced into the high

state. When the outputs are not disabled by the strobe input, only the selected output is

low while all others are high.