These data selectors/multiplexers contain inverters and drivers to
supply full binary decoding data selection to the AND-OR gates.
Separate output-control inputs are provided for each of the two
The 3-state outputs can interface with and drive data lines of
bus-organized systems. With all but one of the common outputs
disabled (at a high-impedance state), the low impedance of the single
enabled output will drive the bus line to a high or low logic level.
Each output has its own strobe (G\) inputs. The output is disabled
when its strobe is high.
The SN54F253 is characterized for operation over the full military
temperature range of -55°C to 125°C. The SN74F253 is
characterized for operation from 0°C to 70°C.
Select inputs A and B are common to both sections.
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