双 D 触发器正向边触发器

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MC74AC74/74ACT74 是一款双 D 型触发器,带异步清除 和设置输入,以及互补 (Q, Q) 输出。输入处的信息 在时钟脉冲的正向边传输到输出。时钟触发发生在时钟脉冲的某个电压水平,与正向脉冲的传输时间不直接相关。超过时钟脉冲输入阈值电压后, 数据输入锁闭,存在的信息不会传输到输出, 直到时钟脉冲输入的下一个上升边。异步输入: SD(设置)的低电平输入会将 Q 设置为高电平,CD (清除)的低电平输入会将 Q 设置为低电平清除,设置与时钟无关,CD 和 SD 上的同时低电平会使得 Q 和 Q 均为高电平。

  • Outputs Source/Sink 24 mA
  • ACT74 Has TTL Compatible Inputs CD1SD2 D1Q1CP2 Q2
  • Pb-Free Packages Are Available

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MC74AC74DG

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Pb

A

H

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SOIC-14

1

260

TUBE

55

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D-Type

2

2

6

9.5

24

$0.2541

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MC74AC74DR2G

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Pb

A

H

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SOIC-14

1

260

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2500

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D-Type

2

2

6

9.5

24

$0.2016

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MC74AC74DTR2G

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TSSOP-14 WB

1

260

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2500

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2

2

6

9.5

24

$0.2177

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NLV74AC74DR2G

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Pb

A

H

P

SOIC-14

1

260

REEL

2500

N

D-Type

2

2

6

9.5

24

Price N/A

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