1. 为什么需要Sequential Logic? 上一节讲到了combinational logic,现在假设有一种新的需求:比如说我们手机的锁屏键,我们需要制作一个按钮,当屏幕灯是开的,那么按按钮之后屏幕灯会被关闭;当屏幕灯是关的,按下按钮后屏幕灯会被打开。 我们无法使用combinational logic 去解决这种需求。其中一个原因是,灯的开关状态并...
不过上面所有的电路都是不含存储记忆能力的Combinational Logic,输入完全决定输出。 而像寄存器等需要保存数据的电路结构,被称作Sequential Logic ,今天看看它们是怎么实现的。 如果用一张图代表二者的关系,那么如下: 先列举一些关键元素: Cross-coupled inverter R-S Latch Gated D Latch D Flip-Flop Register 最终再...
With different initial states, it could be handily described as feedback loop and RS-latch for sequential logic.doi:10.1016/j.cplett.2012.06.002Peng LiBin LiLiming ZhangJie GaoHaifeng ZhaoElsevier B.V.Chemical Physics LettersLi P, Li B, Zhang L et al (2012) Sequential and combinational ...
Sequential Logic Design 3.1 Introduction In the last chapter, we showed how to analyze and design combinational logic. The output of combinational logic depends only on current input values. Given a specification in the form of a truth table or Boolean equation, we can create an optimized circuit...
In digital logic and computing, a sequential circuit is a type of circuit where the output depends not just on the current input, but also on the history of inputs. This contrasts with combinational circuits, where output only depends on the current input. A common example of a sequential ...
Inthis chapter,we will cover what sequential logic is and, more specifically, what flip-flops are and how to use them. Sequential logic is important for controlling the flow of data through your design as well as improving efficiency by allowing different sections of combinational logic to operat...
in digital logic and computing, a sequential circuit is a type of circuit where the output depends not just on the current input, but also on the history of inputs. this contrasts with combinational circuits, where output only depends on the current input. a common example of a sequential ...
In this chapter we begin looking at sequential logic design. Sequential logic design differs from combinational logic design in that the outputs of the circuit depend not only on the current values of the inputs but also on the past values of the inputs.
数字集成电路chapter7 sequential Logic
Chapter7SequentialLogicDesignPrinciples(时序逻辑设计原理)LatchesandFlip-Flops(锁存器和触发器)ClockedSynchronousState-MachineAnalysis(同步时序分析)ClockedSynchronousState-MachineDesign(同步时序设计) BasicConcepts(基本概念)LogicCircuitsareClassifiedintoTwoTypes(逻辑电路分为两大类)：CombinationalLogic...