Logic Gates with Diodes
AND
Let \(Vs = 5\ V\), and \(V_A, V_B = (0, 5)\ V\).
| \(V_A\) |
\(V_B\) |
\(V_{output}\) |
| 0 V |
0 V |
0.7 V |
| 0 V |
5 V |
0.7 V |
| 5 V |
0 V |
0.7 V |
| 5 V |
5 V |
5 V |
OR
Let \(Vs = 5\ V\), and \(V_A, V_B = (0, 5)\ V\).
| \(V_A\) |
\(V_B\) |
\(V_{output}\) |
| 0 V |
0 V |
0 V |
| 0 V |
5 V |
4.3 V |
| 5 V |
0 V |
4.3 V |
| 5 V |
5 V |
4.3 V |
Logic Gates with MOSFETs
NOT
| \(V_A\) |
\(V_{output}\) |
| LOW |
HIGH |
| HIGH |
LOW |
NOR
| \(V_A\) |
\(V_B\) |
\(V_{output}\) |
| 0 V |
0 V |
HIGH |
| 0 V |
5 V |
LOW |
| 5 V |
0 V |
LOW |
| 5 V |
5 V |
LOW |
Logic Gates with BJTs
NOT
| \(V_A\) |
\(V_{output}\) |
| \(< V_{BE}(on)\) |
\(V_{CC}\) |
| \(V_{CC}\) |
\(V_{CE}(sat)\) |
NOR
| \(V_A\) |
\(V_B\) |
\(V_{output}\) |
| 0 V |
0 V |
\(V_{CC}\) |
| 0 V |
5 V |
\(V_{CE}(sat)\) |
| 5 V |
0 V |
\(V_{CE}(sat)\) |
| 5 V |
5 V |
\(V_{CE}(sat)\) |
other content pending.
