Table 1.
Pneumatic circuit operators and their symbols.
| Operators | Symbols | Building Combinations | Functions |
|---|---|---|---|
| Inverter (NOT) |  |
basic building block | outputs 0 (1) if the input is 1 (0). |
| NOR |  |
basic building block | outputs 1 only if both inputs are 0. |
| NAND |  |
basic building block | outputs 0 only if both inputs are 1. |
| Buffer |  |
 |
maintains the input. |
| OR |  |
 |
outputs 0 only if both inputs are 0. |
| AND |  |
 |
outputs 1 only if both inputs are 1. |
| XNOR |  |
 |
outputs 0 only if two inputs differ. |
| XOR |  |
 |
outputs 1 only if two inputs differ. |
| Bistable Flip-flop |  |
 |
maintains the input (S) even after the signal disappears. |
| D Latch (gated) |  |
 |
accepts the input (D) when the gate (E) opens and maintains the output after closed. |
| Edge Detector |  |
 |
outputs 1 whenever detecting rising edges in the input. |
| Toggle |  |
 |
toggles the output when the input (T) is 1. |
| Clock Generator (Oscillator) |  |
 |
generates clock pulses. |
| D Flip-flop (clocked) |  |
 |
shifts the input bit by one clock cycle. |
| Shift Register | n/a |  |
shifts multiple bits by one clock cycle. |