Logic Diagrams
DOE-HDBK-1016/2-93
ENGINEERING LOGIC DIAGRAMS
Rev. 0
Page 9
PR-05
Figure 10 Symbols for Complex Logic Devices
Flop-flop - As the name implies, a flip-flop is a device in which as one or more of its
inputs changes, the output changes. A flip-flop is a complex circuit constructed from
OR and NOT gates, but is used so frequently in complex circuits that it has its own
symbol. Figure 10 shows the common symbol used for a flip-flop.