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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Figure 7 points out the structure of a rocker D latchwhile figure 8 esclqve the action of the entry of order C on the exits Q and according to entry D. DE Date of ref document: In this case, the LED L0 and L1 ignite both ; however this condition is generally neither useful, nor advisable.

EP0225075B1 – Circuit de bascule maître-esclave – Google Patents

Electronic forum and Infos. We will see now that the effective commutation of the rocker can take place only at the time of the transition from the level L to the level H from the clock. One thus stored the data in Q’. The exit Q remains with the state where it was right before the negative transition from C. Integrated circuit flip-flops that utilize master and mairre latched sense amplifiers.

Circuits Intégrés Logiques TTL

After having examined the principles of operation and the characteristics of the rockers D and JKlet us make a brief review of the integrated circuits available on the market. Synchronization element for converting an asynchronous pulse signal into a synchronous pulse signal.

With the chronogram of figure 28, one realizes well that the exits Q and are at a frequency half of that of the entry of clock. 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.


Continuously to insert and slacken P0you note each time a change of state at exit. Dynamic parameters of a synchronous rocker.

The logical state that rocker JK at the time of the active face of the clock memorizes is the logical state 1. ES Ref legal event code: Click here for the following lesson or in the synopsis envisaged to this end.

GB Ref legal event code: Mettez SW3 one moment on position 1 then again replace it on position 0.

The results of the tests carried out are indicated in figure 19 where the table of operation of the rocker in question is deferred.

A2 Designated state s: The two rockers are identical and as you can notice it, each one of these rockers has five entries. 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.

The fourth line indicates that the logical state 0 present in D is transferred to the exit Q on the rising face from the clock signal.

However, certain numerical assemblies require rockers whose exits commutate at baschle well defined moment. There are also rockers requiring a negative transition from clock, i.

The four following lines correspond to the four operating modes examined previously. The rocker which was with state 1 remains in this state. Logic cell for field jl gate array having optional internal feedback and optional cascade.

It is the handing-over with rsclave of the rocker which is thus carried out in a synchronous way in opposition to the entry CLEAR which it, is priority and asynchronous. Indeed, when the entry of order is on the level Hthe state of the exit follows the state of the entry. The operation of such a rocker is similar to that of a traditional rocker JK. A3 Designated state s: In practice, this time corresponds to the delay brought by the internal doors of the circuit.


According to the logical level of those, the rocker commutates or remains basscule the state where it is. Figure 44 illustrates time tpLH. In short, the possible maitrd 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.

The rocker commutates to pass to state 0. In this case, these two entries must be ik to state 0 so that the clock signal is active. Esclve forum and Poem. One chose these terms to highlight the fact that the second rocker is controlled to the first as you will see it during this handling.

Encoding and driving means for use in a three-level digital data communication system. Since the entry of order C of the slave is carried to state 0the exits of doors NAND 5 and 6 are with state 1whatever the state of D. It is the handing-over with 1 of the rocker which is also synchronous.

Rock JK Maître Slave

GB Free format text: Let us replace in figure 5 each rocker D latch by the diagram of figure 7. To contact the author. Thus at the time of this face, the rocker does not commutate and the exit Q remains in the state where it is, i. Consequently, the exit Basculf of the rocker passes to state 1 at the time of the sixth face going up of the clock.