Elektronika - baza wiedzy

74109 - Dwukrotny przerzutnik J-K, wyzwalany dodatnim zboczem


      +---+--+---+           +---+---+---+----+----*---+---+
/1RST |1  +--+ 16| VCC       | J |/K |CLK|/SET|/RST| Q |/Q |
   1J |2       15| /2RST     +===+===+===+====+====*===+===+
  /1K |3       14| 2J        | X | X | X |  0 |  0 | 1 | 1 |
 1CLK |4   74  13| /2K       | X | X | X |  0 |  1 | 1 | 0 |
/1SET |5  109  12| 2CLK      | X | X | X |  1 |  0 | 0 | 1 |
   1Q |6       11| /2SET     | 0 | 0 | / |  1 |  1 | 0 | 1 |
  /1Q |7       10| 2Q        | 0 | 1 | / |  1 |  1 | - | - |
  GND |8        9| /2Q       | 1 | 0 | / |  1 |  1 |/Q | Q |
      +----------+           | 1 | 1 | / |  1 |  1 | 1 | 0 |
                             | X | X |!/ |  1 |  1 | - | - |
                             +---+---+---+----+----*---+---+