Elektronika - baza wiedzy

74112 - Dwukrotne przerzutniki J-K, wyzwalane ujemnym zboczem, z wejściami do ustawiania i zerowania


      +---+--+---+           +---+---+----+----+----*---+---+
/1CLK |1  +--+ 16| VCC       | J | K |/CLK|/SET|/RST| Q |/Q |
   1K |2       15| /1RST     +===+===+====+====+====*===+===+
   1J |3       14| /2RST     | X | X |  X |  0 |  0 | 0 | 0 |
/1SET |4   74  13| /2CLK     | X | X |  X |  0 |  1 | 1 | 0 |
   1Q |5  112  12| 2K        | X | X |  X |  1 |  0 | 0 | 1 |
  /1Q |6       11| 2J        | 0 | 0 |   |  1 |  1 | - | - |
  /2Q |7       10| /2SET     | 0 | 1 |   |  1 |  1 | 0 | 1 |
  GND |8        9| 2Q        | 1 | 0 |   |  1 |  1 | 1 | 0 |
      +----------+           | 1 | 1 |   |  1 |  1 |/Q | Q |
                             | X | X | ! |  1 |  1 | - | - |
                             +---+---+----+----+----*---+---+