Arithmetic Logic Functions | MC74AC4040

12 段バイナリ・リップル・カウンタ

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CAD Model

Overview

MC74AC4040 は、12 個のマスター／スレーブ・フリップフロップで構成されます。各フリップフロップの出力は次を供給し、各出力の周波数は前の出力の周波数の半分になります。カウンタの状態は、クロック入力の負方向エッジで進みます。リセットは非同期で、アクティブ HIGH です。内部リップル遅延のため、Q 出力の状態変化は同時に発生しません。したがって、デコードされた出力信号はデコード・スパイクを受けやすく、一部の設計では、MC74AC4040 のクロックでゲートすることが必要な場合もあります。

  • 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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Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Type

VCC Min (V)

VCC Max (V)

tpd Max (ns)

PD Max (W)

IO Max (mA)

Reference Price

MC74AC4040DG

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Last Shipments

CAD Model

Pb

A

H

P

SOIC-16

751B-05

1

260

TUBE

48

N

Counter

2

6

8

0.75

24

Price N/A

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MC74AC4040DR2G

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CAD Model

Pb

A

H

P

SOIC-16

751B-05

1

260

REEL

2500

N

Counter

2

6

8

0.75

24

$0.2808

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