Showing papers on "Flip-flop published in 1968"

Integrated mos transistor flip-flop circuit

Abstract: A circuit capable of J-K operation and composed of enhancementtype MOS transistors adapted for integrated circuits. The total gate area required for the transistors is reduced by minimization of series connection of two or more of the inverter transistors, which are required to have a low resistance compared with the transistors that perform a load resistor function. This avoidance of series connection is achieved by connecting one of the cross-connected feedback paths of each flip-flop assembly through a transmission transistor gated by the clock pulses.

Master-slave type j-k flip-flop circuits comprised by current switching type logical circuits

Abstract: A master-slave type J-K flip-flop circuit comprising a master flip-flop circuit-producing outputs Qm, Qm and a slave flip-flop circuit-producing outputs Qs, Qs. The master flip-flop The master flip-flop circuit includes a first set input circuit having a current-switching type logical circuit which performs an AND operation of an input J and clock Cp in reference to the output Qs and a first reset input circuit having a current-switching type logical circuit which performs and AND operation of an input K and clock Cp in reference to the output Qs. The slave flip-flop circuit includes a second set input circuit having a currentswitching type logical circuit which executes a current-switching operation of the clock Cp in reference to the output Qm and a second reset input circuit having a current-switching type logical circuit which executes a current-switching operation of the clock Cp in reference to the output Qm.

Current switching type flip-flop circuit device

Abstract: A current-switching-type flip-flop circuit device including first and second sections each comprising a first currentswitching-type logic circuit comprising a first transistor forming an AND input gate and a second transistor carrying out a current switching operation jointly therewith, a second currentswitching-type logic circuit provided with a third transistor forming an OR input gate to perform a flip-flop action, and a means for jointly connecting the collectors of the aforementioned second and third transistors.

Flip-flop circuit particularly for integration

Abstract: A flip-flop circuit is provided with cross-coupling using an extra transistor between an input element and a circuit point directly responsive to the inverted signal of the opposite stage. Greater speed, symmetry and ease of formation in integrated circuits are achieved.

Bistable flip-flop circuit with improved control of clock threshold

Abstract: A bistable flip-flop circuit for use preferably in monolithic semiconductor integrated circuits having a master flip-flop at the circuit input and a slave output at the circuit output with coupling transistors between the two master and slave flip-flops. The emitters of the transistors coupled through a resistor to the clock pulse input so that the master flip-flop changes state responsive to the rise time of the clock pulse and the slave flip-flop changes state during the fall time of the clock pulse throughout an extended temperature range.

Measuring nanosecond time differences by dynamic storage of flip-flop pulses

Abstract: Time differences are measured after dynamic storage of the original flip-flop pulses and are stretched by a factor exceeding 250. Stability of the circuit is demonstrated by the absence of time jitter. The circuit presented apparently shows considerable advantages over devices applying digital counters.