Digital combination lock
Entire design in one chip
Including code registers
E0900
+---------\ /---------+
| \ / |
| ----- |
clk | 1 40 | Vcc
| |
rst | 2 39 |
| |
value1 | 3 38 |
| |
ld1 | 4 37 |
| |
code1 | 5 36 |
| |
code2 | 6 35 |
| |
code3 | 7 34 | out
| |
code4 | 8 33 | mux3
| |
equal1 | 9 32 | mux2
| |
equal2 | 10 31 | mux1
| |
C1_1 | 11 30 | C3_4
| |
C1_2 | 12 29 | C3_3
| |
C1_3 | 13 28 | C3_2
| |
C1_4 | 14 27 | C3_1
| |
C2_1 | 15 26 | C2_4
| |
C2_2 | 16 25 | C2_3
| |
value2 | 17 24 |
| |
value3 | 18 23 | new
| |
value4 | 19 22 | ld2
| |
GND | 20 21 | ld3
| |
| |
`---------------------------'
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