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| selector | go back |
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| 1 | the input at A is reflected at the output if the selector pin is at logic "1" and the input at B if the selector pin is at logic "0". |
| 2 | this exercise is encapsulated in a chip coded 74ls258. |
| 3 | one application of this type of selector is the display of a clock. at one position of the selector switch, time is displayed. at another position, the alarm setting is reflected on the same display. a simplified circuit using a 74ls258 is indicated in the next circuit. |
| 4 | 444 |