Full PDF Text Transcription for MC14561B (Reference)
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MC14561B. For precise diagrams, and layout, please refer to the original PDF.
MOTOROLA SEMICONDUCTOR TECHNICAL DATA MC14561B 9's Complementer The MC14561B 9’s complementer is a companion to the MC14560B NBCD adder to allow BCD subtraction. A BCD nu...
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ompanion to the MC14560B NBCD adder to allow BCD subtraction. A BCD number (8–4–2–1 code) is applied to the inputs (A1 = 20, A2 = 21, A3 = 22, A4 = 23). If the complement control (Comp) is low, the BCD number appears at the outputs unmodified. The complement disable (Comp) allows the complement control to be gated, or an inverted control signal to be used. If the complement input is high and the disable input low, the 9’s complement of the number is displayed at the outputs. The zero control (Z), when high, forces the outputs low regardless of the state of the other inputs.
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MC14561B Datasheet
