| 基本逻辑门 |
符号 |
数学公式 |
真值表 |
| 缓冲器 |
 |
Q = A |
A Q 0 0 1 1
|
| 非门 |
 |
Q = 非 A |
A Q 0 1 1 0
|
| 与门 |
 |
Q = A . B |
A B Q 0 0 0 0 1 0 1 0 0 1 1 1
|
| 与非门 |
 |
Q = 非 (A . B) |
A B Q 0 0 1 0 1 1 1 0 1 1 1 0
|
| 或门 |
 |
Q = A + B |
A B Q 0 0 0 0 1 1 1 0 1 1 1 1
|
| 或非门 |
 |
Q = 非 (A + B) |
A B Q 0 0 1 0 1 0 1 0 0 1 1 0
|
| 异或门 |
 |
Q = (A + B) . 非 (A . B) |
A B Q 0 0 0 0 1 1 1 0 1 1 1 0
|
| 异或非门 |
 |
Q = 非 ( (A + B) . 非 (A . B) ) |
A B Q 0 0 1 0 1 0 1 0 0 1 1 1
|