1/8 解码器/信号分离器

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MC74HC138A 与 LS138 的引脚输出相同。该器件输入兼容标准的 CMOS 输出;带有上拉电阻器,可兼容 LSTTL 输出。HC138A 将三位地址解码为八分之一有效低电平输出。此器件具有三个芯片选择输入、两个有效低电平和一个有效高电平,可实现信号分离、级联和芯片选择功能。信号分离功能通过使用地址输入来选择所需器件输出而实现;一个芯片选择用作数据输入,其他芯片选择保持为有源状态。

  • Output Drive Capability: 10 LSTTL Loads
  • Outputs Directly Interface to CMOS, NMOS and TTL
  • Operating Voltage Range: 2.0 to 6.0 V
  • Low Input Current: 1.0 mA
  • High Noise Immunity Characteristic of CMOS Devices
  • In Compliance with the Requirements Defined by JEDEC Standard No. 7A
  • Chip Complexity: 100 FETs or 29 Equivalent Gates
  • Pb-Free Packages are Available*

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MC74HC138ADG

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Pb

A

H

P

SOIC-16

1

260

TUBE

48

N

1

2

6

27

5.2

$0.2452

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MC74HC138ADR2G

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Pb

A

H

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SOIC-16

1

260

REEL

2500

N

1

2

6

27

5.2

$0.0828

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MC74HC138ADTR2G

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TSSOP-16

1

260

REEL

2500

N

1

2

6

27

5.2

$0.1616

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