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5         4                         3                            2                                  1




                                                                                      5V        5V


                                                                     D1




                                                                                  1
                                                                                                1




                                                                              C
                                                                                           C
                                                                     D2           R1                   R6
D                                                                                                      10K                  D
                                                                                  10K
                                                                     D5




                                                                              9
                                                                              8
                                                                              7
                                                                              6
                                                                              5
                                                                              4
                                                                              3
                                                                              2
                                                                                           9
                                                                                           8
                                                                                           7
                                                                                           6
                                                                                           5
                                                                                           4
                                                                                           3
                                                                                           2
                                                 5V

                                                                     D6
                            U2                                                                                        J6

              D0       2    D1     Q1   19                                                                        1
              D1       3    D2     Q2   18                                                                        2
              D2       4    D3     Q3   17                                                                        3
              D3       5    D4     Q4   16                                                                        4
              D4       6    D5     Q5   15                                                     BT_ON              5
              D5       7    D6     Q6   14                                                                        6
              D6       8    D7     Q7   13                                                                        7
                       9    D8     Q8   12                                                                        8
                                  VCC   20                                                                        9
    CLK_TECLADO        11   CLK                                                                                  10
                                                        C27                                                      11
                       1                10            100KpF   C15                                               12
C
                            OE    GND                          1uF                                                          C
                                                                                                                 13

                            CD74HC574PWR                                  1K
                                                                                                                  TECLADO

                                                                                                 SOQUETE DE BARRA
                                                                                                 DE PINO




B                                                                                                                           B




A                                                                                                                           A




         5         4                         3                            2                                  1

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Schematic1 Teclado

  • 1. 5 4 3 2 1 5V 5V D1 1 1 C C D2 R1 R6 D 10K D 10K D5 9 8 7 6 5 4 3 2 9 8 7 6 5 4 3 2 5V D6 U2 J6 D0 2 D1 Q1 19 1 D1 3 D2 Q2 18 2 D2 4 D3 Q3 17 3 D3 5 D4 Q4 16 4 D4 6 D5 Q5 15 BT_ON 5 D5 7 D6 Q6 14 6 D6 8 D7 Q7 13 7 9 D8 Q8 12 8 VCC 20 9 CLK_TECLADO 11 CLK 10 C27 11 1 10 100KpF C15 12 C OE GND 1uF C 13 CD74HC574PWR 1K TECLADO SOQUETE DE BARRA DE PINO B B A A 5 4 3 2 1