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The NTE7496 is a 5−bit shift register in a 16−lead plastic DIP-type package that consists of five R−S master−slave flip−flops connected to perform parallel−to−serial or serial−to−parallel conversion of binary data. Since both inputs and outputs for all flip−flops are accessible, parallel−in/parallel−out or serial−in/serial−out operation may be performed. All flip−flops are simultaneously set to a low output level by applying a low−level voltage to the clear input while the preset is inactive (low). Clearing is independent of the level of the clock input. The register may be parallel loaded by using the clear input in conjunction with the preset inputs. After clearing all stages to low output levels, data to be loaded is applied to the individual preset inputs (A, B, C, D and E) and a high−level load pulse is applied to the preset enable input. Presetting, like clearing, is independent of the level of the clock input. Transfer of information to the outputs occurs on the positive−going edge of the clock pulse. The proper information must be set up at the R−S inputs of each flip−flop prior to the rising edge of the clock input waveform. The serial input provides this information to the first flip−flop, while the outputs of the subsequent flip−flops provide information for the remaining R−S inputs. The clear input must be high and the preset or preset enable inputs must be low when clocking occurs.
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