4042

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4-bit transparent latch with selectable latch enable polarity and complementary outputs

    +---+--+---+             +---+---+---*---+---+
 Q3 |1  +--+ 16| VCC         | LE| LP| D | Q |/Q |
 Q0 |2       15| /Q3         +===+===+===*===+===+
/Q0 |3       14| D3          | 0 | 0 | 0 | 0 | 1 |
 D0 |4       13| D2          | 0 | 0 | 1 | 1 | 0 |
 LE |5  4042 12| /Q2         | 1 | 0 | X | - | - |
 LP |6       11| Q2          | 1 | 1 | 0 | 0 | 1 |
 D2 |7       10| Q1          | 1 | 1 | 1 | 1 | 0 |
GND |8        9| /Q1         | 0 | 1 | X | - | - |
    +----------+             +---+---+---*---+---+