aux deux entrées d’une bascule DICE, il est possible de placer deux blocs combina- toires identiques .. est composé de deux verrous, un maître (master) et un esclave (slave). G.K. Maki, J.K. Hass, Q. Shi & J. Murguia. Circuit de verrouillage maître-esclave formé par un circuit de verrouillage maître USA * Rca Corp J-k’ flip-flop using direct. Elément de mémoire du type bascule maître-esclave, réalisé en technologie CMOS . Electron Horloger Bistabile logische kippschaltungsanordnung vom jk- typ.

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You note that the state from the Q2 exits and 2 does not vary, which indicates that the changes ik state of the entries J, K and CLOCK do not determine any swing of the state of the exits. This case very is thus seldom used and certain manufacturers regard it even as interdict.

These rockers have a synchronous operation as we will see it esclavs. It is not possible to envisage which of both will ignite, because that depends on the physical characteristics of the integrated circuit. To contact the author.

EP0225075B1 – Circuit de bascule maître-esclave – Google Patents

When the fourth positive face occurs, the entry D is with state 0. Date of ref document: The rocker remains with state 0. The rocker thus commutates to pass to state 0.

The signal provided by the P0 button is applied directly to the entry of the second rocker and through a reverser to the entry of the first.

Forms maths Geometry Physics 1. To illustrate this truth table, let us examine the chronogram of figure One can thus conclude that when the entries J and K are both on the level Hthe rocker changes state each time a positive impulse arises maiitre entry CLOCKi. Thus at the time of this face, the rocker does not commutate and the exit Q remains in the state where it is, i. A second reverser, connected to the entry R of the first rocker, makes it possible to reverse the logical levels applied to the entries S and R by means of switch SW0.


Examinations Rocks D in the Maître-esclave configuration and of a Rocker J.K

Insert then slacken the P0 button. In this case, the LED L0 and L1 ignite both ; however this condition is generally neither useful, nor advisable. With this handling, you will check the operation of a rocker D in the master-slave configuration. K3 This type of rocker was used to produce meters.

This operating mode is at the base of much type eesclave electronic systems of counting as you will see it thereafter.

It should be noted that in this case the state of the exits Q and is identical. We know that the rocker D of the LATCH type makes it possible thanks to the entry of order to memorize a bit of information. Forms maths Geometry Physics 1.

When the exit Q recopies the entry Dthe rocker D latch is transparent the logical state of the exit Q is the same one as that of the entry D.

High-speed, asynchronous, No-Fall-Through, first-in-first out memory with high data integrity. Figure 7 ,aitre out the structure of a rocker D latchwhile figure 8 shows the action of the entry of order Rsclave on the exits Q and according to entry D.

The rocker commutates to pass to state 0. One is led to the truth table of the figure b which gives the logical state of S according to the possible combinations of the logical states of the entries JK and Q.


Between two successive rising faces of the clock, there is no possible change of the exit Q. The two chronograms of figures 37 and 38 are often joined together in only one in the catalogs of manufacturers, as shown in the figure If this time is not respected, the data will not be taken into account by the circuit.

Since the slave is transparent, the exits Q and will recopy Q’ and ‘. It is enough to add a combinative network on the entry D see figure 30 to obtain rocker JK.

The second active face of the clock does not have an action on the exit Q of the rocker since it takes place when entry CLEAR is active, therefore priority. Before the application of the second face going up of the clock, the entry J passes to state 1.

The four following lines correspond to the four operating modes jkk previously. GB Ref legal event code: It is enough to replace J and K by: In short, the possible swing of the exit Q takes place only at the time of the rising face of the clock transition from the level L to the level H of entry CLOCK. B1 Designated state s: