The input signal does not need to be maintained after the negative transition trigger edge arrives, because even if the original J and K signals change, it must be delayed by the first-level NAND gate before being transmitted to the output terminals of G3 and G4. The flip-flop has been ...
Another variation on a theme of bistable multivibrators is the J-K flip-flop. Essentially, this is a modified version of an S-R flip-flop with no “invalid” or “illegal” output state. Look closely at the following diagram to see how this is accomplished: The J and K Inputs What ...
The circuit diagram for this is shown in Figure 4.Figure 4: JK Flip Flop When J = 0 and K = 0 These J and K inputs disable the NAND gates, therefore clock signals have no effect on the flip flop. In other words, Q returns its last value. When J = 0 and K = 1, The upper...
7473 Dual JK Flip Flop ICs– There are two 7473 ICs used in the circuit. Each 7473 IC has two JK Flip-Flops. So, two ICs are enough for four players. The DIP package of the IC is used as the circuit is designed and tested on a breadboard. The typical operating voltage of the IC...
Key Words:JK flip-flop;excitation function;self-stating;design of sequential logic circuits 0引言 在SSI时序逻辑电路设计中,遵循的设计准则是[1]:在保证所设计的时序逻辑电路具有正确功能的前提下,触发器的激励函数应最小化,从而简化电路结构.一般还要求,在有冗余的无效状态时所设计的电路能够自启动. 用JK触发...
K data is processed by the flip-flop on the falling edge of the clock pulse The clock triggering occurs at a voltage level and is not directly related to the transition time of the falling edge of the clock pulse Data on the J and K inputs may be changed while the clock is high or...
195 235 31 39 47 ns 26 33 40 180 225 270 36 45 54 ns 31 38 46 75 95 110 15 19 22 ns 13 16 19 10 10 10 pF MHz pF 35 44 53 ns 32 40 48 ns 37 46 56 ns 15 19 22 ns 10 10 10 pF MHz pF (1) CPD is used to determine the dynamic power consumption, per flip-flop...
11、步时序逻辑电路的状态图Fig.1State diagram of synchronous sequentiallogic circuitQ:“ Q_。 Qf z 图2各个触发器的次态卡诺图、输出卡诺图及求.,、K和Z的化简Fig.2Nextstate Karnaugh maps of flip-flops。output Karnaugh maps and simplification of J,K and Z第4期 任骏原:基于次态卡诺图的.,K激...