Semiconductor flip-flop consuming low power

摘要

This invention provides a flip-flop drawing low current and occupying a small area in a semiconductor integrated circuit. The flip-flop has a first and a second transistor having their emitters grounded via a first and a second diode, respectively. The collector of the first transistor is coupled with the base of the second transistor via a third diode. Likewise, the collector of the second transistor is coupled with the base of the first transistor via a fourth diode. The output is derived from the collector of a third transistor having its base-emitter path connected in parallel with the first or second diode to form a current mirror circuit.