These monolithic data selectors/multiplexers contain full on-chip binary
decoding to select the desired data source. The '150 selects one-of-sixteen
data sources; the '151A, 'LS151, and 'S151 select one-of-eight data sources.
The '150, '151A, 'LS151, and 'S151 have a strobe input which must be at a
low logic level to enable these devices. A high level at the strobe forces
the W output high, and the Y output (as applicable) low.
The '150 has only an inverted W output; the '151A, 'LS151, and 'S151 feature
complementary W and Y outputs.
The '151A and '152A incorporate address buffers that have symmetrical propagation
delay times through the complementary paths. This reduces the possibility
of transients occurring at the output(s) due to changes made at the select
inputs, even when the '151A outputs are enabled (i.e., strobe low).
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