PURPOSE:To keep the complementary relation of outputs independently of the combination of logic levels by connecting a logic circuit of a low power consumption between a data input and a sense input of a D latch and a set input terminal and a reset input terminal. CONSTITUTION:P-channel ...
MOS-反相器 如果将两个反相器交叉耦合,如图1a所示,则构成了最基本的存储电路,称为双稳态电路(bi-stable circuit)。 所谓交叉耦合,是指将第一个门电路的输出端连接到第二个门电路的输入端,再将第二个门电路的输出端反馈到第一个门电路的输入端。 图1 如图1b所示,其中VO1=vi2,vO2=vi1。由于双稳态电路的...
So it is proved that Q remains the same as it is when S = 0 and also R = 0 in SR latch orflip flop. In the above logic circuit if S = 1 and also R = 1, the condition of Q is totally unpredictable. Let us explain how. First suppose Q is previously 1. Now both inputs of...
电路数量: 4 Circuit 逻辑类型: S-R Latch 逻辑系列: MC14 极性: Non-Inverting 静态电流: 4 uA 输出线路数量: 4 Line 高电平输出电流: - 4.2 mA 低电平输出电流: 32 mA 传播延迟时间: 350 ns at 5 V, 175 ns at 10 V, 120 ns at 15 V 电源电压-最大: 18 V 电源电压-最小: 3 V 最小工...
其次CLK从低变高的很短的时间内,Latch2把Latch1的输出给到Q。 整体来看,就是在上升沿,Latch2把Latch1在上升沿之前的值存在了Q端。 以上这些都叫做同步控制,也就是只有一个CLK信号控制整个电路。但异步控制不只是多个CLK时钟,而且包括一些可以越过CLK直接控制输出的电路。
The latch is a bistable circuit with two complementary outputs. Since the information is locked, or latched, in place, it is a latch. If the output of N1 in figure 2 is Q = logic 1, the input to N2 is also logic 1. Then the output of N2 is Q̅ = 0, and the input to N1...
2. Working of SR NAND Latch To understand the working of SR NAND latch, we need to have a look at the truth table of NAND gate given below. Case 1: When S=0, R=0 Let us suppose, the value of Q at the start of the circuit be 1, then inputs at the lower gate will be 1,...
SOUND SPEAKER CIRCUIT,二输入端四或非门,电流输出温度传感器,精密温度传感器,接口,正沿触发双D型触发器,TRICKLE CHARGE TIMEKEEPING CHIP,DUAL J-K FLIP-FLOP,3-TO-8 LINE DECODER,6个高压输出缓冲器,HI-FI AUDIO POWER AMPLIFIER,高稳定性555定时器,四个异或门,FOUR R /S LATCH (AND NON-TRI-STATE),低...
SOUND SPEAKER CIRCUIT,二输入端四或非门,电流输出温度传感器,精密温度传感器,接口,正沿触发双D型触发器,TRICKLE CHARGE TIMEKEEPING CHIP,DUAL J-K FLIP-FLOP,3-TO-8 LINE DECODER,6个高压输出缓冲器,HI-FI AUDIO POWER AMPLIFIER,高稳定性555定时器,四个异或门,FOUR R /S LATCH (AND NON-TRI-STATE),低...
The circuit below is a SR Latch. They are not equivalent. The triangle in the SR Flip-flop means it requires a clock edge (most likely rising) to operate, it does not work with only a static level at the clock terminal. The SR Latch just has an enable input so it requires only a...