74574

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8-bit 3-state D flip-flop.

    +----------+             +---------------+
/OE |1  +--+ 20| VCC         |/OE|CLK| D | Q |
 D1 |2       19| Q1          |---+---+---+---|
 D2 |3       18| Q2          | 1 | X | X | Z |
 D3 |4       17| Q3          | 0 | / | 0 | 0 |
 D4 |5   74  16| Q4          | 0 | / | 1 | 1 |
 D5 |6  574  15| Q5          | 0 |!/ | X | - |
 D6 |7       14| Q6          +---------------+
 D7 |8       13| Q7
 D8 |9       12| Q8
GND |10      11| CLK
    +----------+