用下降沿触发的边沿T触发器和与非门设计一个同步十二进制加／减可逆计数器。
用下降沿触发的边沿T触发器和与非门设计一个同步十二进制加/减可逆计数器。
热搜：d触发器和d锁存器区别
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(1)时序图：
(2)状态转换和驱动真值表：
X Q_{3}^{n} Q_{2}^{n} Q_{1}^{n} Q_{0}^{n} Q_{3}^{n+1} Q_{2}^{n+1}Q_{1}^{n+1} Q_{0}^{n+1} T3 T2 T1 T0 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1 0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
0 0 0 0
× × × ×
× × × ×
× × × ×
× × × × 0 0 0 1
0 0 1 1
0 0 0 1
0 1 1 1
0 0 0 1
0 0 1 1
0 0 0 1
1 1 1 1
0 0 0 1
0 0 1 1
0 0 0 1
1 0 1 1
× × × ×
× × × ×
× × × ×
× × × × 1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1 0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1 1 0 1 1
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
× × × ×
× × × ×
× × × ×
× × × × 1 0 1 1
0 0 0 1
0 0 1 1
0 0 0 1
0 1 1 1
0 0 0 1
0 0 1 1
0 0 0 1
1 1 1 1
0 0 0 1
0 0 1 1
0 0 0 1
× × × ×
× × × ×
× × × ×
× × × ×
(3)卡诺图：
T0=1
(4)电路图：
