Bilingual edition: English is preserved and Chinese follows each unit. Terminology uses the confirmed v20260916 glossary; automated semantic review remains traceable.
中英双语版:英文原文完整保留,中文紧随对应单元;术语采用 v20260916 确认表,自动语义审校结果可追溯。

NAND-gate Latch

NAND逻辑门锁存器
Apply "Set" Pulse
应用“设置”脉冲

The time sequence at right shows the conditions under which the set and reset inputs cause a state change, and when they don't.

右边的时间序列显示了集电极开路输入在引起状态变化的条件以及不引起状态变化的情况。

The concept of a "latch" circuit is important to creating memory devices. The function of such a circuit is to "latch" the value created by the input signal to the device and hold that value until some other signal changes it.

“锁存器”电路的概念对于制造存储器设备至关重要。此类电路的功能是将输入信号产生的值锁存到设备中,并在其他信号改变之前保持该值。
Application to switch de-bouncing
应用到开关去抖
Set-reset Flip-flop
置位-复位翻转器
NOR-gate Latch
NOR门锁存器
To Clocked Version
时钟版本
NAND Gate
与非门
Application in D Flip-flop
在D触发器中的应用
Index

Electronics concepts

Digital circuits
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HyperPhysics*****Electricity and magnetism
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Setting the NAND Latch

设置NAND锁存器

After being set to Q=1 by the low pulse at S (NAND gate function), the restored normal value S=1 is consistent witht the Q=1 state, so it is stable. Another negative pulse on S gives which does not switch the flip-flop, so it ignores further input.

在S端的低脉冲将Q设为1(NAND门功能),恢复的正常值S=1与Q=1状态一致,因此是稳定的。S端的另一个负脉冲不会使触发器翻转,因此忽略后续输入。
Apply "Reset" Pulse
应用“重置”脉冲

The time sequence at right shows the conditions under which the set and reset inputs cause a state change, and when they don't.

右边的时间序列显示了集电极开路输入在引起状态变化的条件以及不引起状态变化的情况。
NAND-Gate Latch
NAND逻辑门锁存器
Index

Electronics concepts

Digital circuits
索引 电子学概念 数字电路
 
HyperPhysics*****Electricity and magnetism
HyperPhysics ***** 电磁学
R Nave
Go Back
返回










Resetting the NAND Latch

复位NAND锁存器

Following the truth table for the S-R flip-flop, a negative pulse on the R input drives the output Q to zero.

根据S-R触发器的真值表,R输入端出现负脉冲时,输出Q会被置零。
Return to reset state.
返回重置状态

The time sequence at right shows the conditions under which the set and reset inputs cause a state change, and when they don't.

右边的时间序列显示了集电极开路输入在引起状态变化的条件以及不引起状态变化的情况。
NAND-Gate Latch
NAND逻辑门锁存器
Index

Electronics concepts

Digital circuits
索引 电子学概念 数字电路
 
HyperPhysics*****Electricity and magnetism
HyperPhysics ***** 电磁学
R Nave
Go Back
返回