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英语翻译The R-S Flip-Flop.We can realize the latch function with

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英语翻译
The R-S Flip-Flop.We can realize the latch function with standard logic gates.Fig.4.17 shows a latch constructed from tow NOR gates.The output of each NOR provides one of the inputs for the other NOR.The other inputs are labeled S(for SET) and R(for RESET).The outputs are labeled Q and Q’ because the latch provides complementary outputs.This circuit,called an R-S flip-flop,is similar in its operation to the bistable in Fig.4.16(b).
Let us consider that R and S are both 0 but that Q’ is 1.In this case of the inputs to NOR1 is 1 and hence its output(Q) is 0.This is consistent with the assumption that Q’ is 1,which implies that both inputs to NOR2 are 0.By symmetry,the latch will also be stable with Q=1 and Q’=0.
英语翻译The R-S Flip-Flop.We can realize the latch function with
R-S 啪嗒啪嗒的响声.我们能体会门闩作用以标准逻辑门.Fig.4.17 显示一个门闩被修建从拖曳Nor.gates .每个的产品亦不为其他提供输入的当中一个亦不.其它输入被标记S(for 被设置) 和R(for 被重新设置) .产品被标记Q 和Q’ 因为门闩提供补全产品.这条电路,称R-S 啪嗒啪嗒的响声,是相似在它的操作与双稳在Fig.4.16(b) .
让我们考虑,R 和S 是两0 但Q’ 是1 .输入对NOR1 在这种情况下是1 并且因此它的output(Q) 是0.This 与Q 的假定是一致的’ 是1,暗示两输入对NOR2 是0 .由对称,门闩并且将是稳定的以Q=1 和Q’= 0 .