Arithmetic Logic Functions | MC74AC4040

12 级二进制波纹计数器

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MC74AC4040 由 12 个主-从触发器组成。每个触发器的输出馈送到下一个触发器，每个输出处的频率为上一个的一半。计数器的状态在时钟输入的负向边前进一次。重置为异步和有效高电平。由于内部波纹延迟，Q 输出的状态变化不会同时发生。因此，解码的输出信号容易发生解码尖峰，对于某些设计可能必须使用 MC74AC4040 的时钟进行门控。

  • 140 MHz Typ. Clock
  • Outputs Source/Sink 24 mA
  • Operating Voltage Range: 2.0 to 6.0 V
  • High Noise Immunity
  • These devices are available in Pb-free package(s). Specifications herein apply to both standard and Pb-free devices. Please see our website at www.onsemi.com for specific Pb-free orderable part numbers, or contact your local ON Semiconductor sales office or representative.

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MC74AC4040DG

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Pb

A

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SOIC-16

751B-05

1

260

TUBE

48

N

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0.75

24

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MC74AC4040DR2G

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CAD Model

Pb

A

H

P

SOIC-16

751B-05

1

260

REEL

2500

N

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2

6

8

0.75

24

$0.2808

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