Multiplexers | 74VHC138

3-8 解码器/信号分离器

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VHC138 是一种先进的高速 CMOS 3-8 解码器/信号分离器，采用硅门极 CMOS 工艺制造。它能实现与同等双极肖特基 TTL 相似的高速运行，同时还能保持 CMOS 低功耗。启用该器件时，3 个二进制选择输入（A0、A1 和 A2）决定了哪个输出 (O#0-O#7) 将转至低电平。启用输入 E3 保持在低电平，或者 E#1 或 E#2 保持在高电平时，解码功能将抑制，所有输出均转至高电平。E3、E#1 和 E#2 输入是为了简化级联联接，用作内存系统的地址解码器。输入保护电路可确保对输入引脚应用 0V 到 7V 电压而无需考虑电源电压。此器件可用于将 5V 系统与 3V 系统以及两种电源系统的接口，如备用电池。此电路可防止器件由于不匹配的供电和输入电压而损坏。

  • This product is general usage and suitable for many different applications.

  • 高速： TA = 25°C时，tPD = 5.7 ns（典型值）
  • 低功耗： TA = 25°C时，ICC = 2 µA（最大值）
  • 高抗噪能力： VNIH = VNIL = 28% VCC（最小值）
  • 所有输入上都提供掉电保护
  • 引脚和功能与74HC138兼容

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74VHC138M

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Obsolete

CAD Model

Pb

A

H

P

SOIC-16

751BG

1

260

TUBE

960

N

1

2

5.5

7.3

8

Price N/A

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74VHC138MTC

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TSSOP-16

948AH

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260

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2350

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5.5

7.3

8

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74VHC138MTCX

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A

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P

TSSOP-16

948AH

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260

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2500

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2

5.5

7.3

8

$0.2189

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74VHC138MX

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Pb

A

H

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SOIC-16

751BG

1

260

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2500

N

1

2

5.5

7.3

8

$0.5455

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可靠性数据

Die Related Summary Data

Device: 74VHC138M

Equivalent to wafer fab process: CMOS STD

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平均故障间隔时间/平均无故障时间（按小时计算）

FITS

CMOS STD

3

3597164517

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Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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