四路总线缓冲器,3 态,TTL 电平

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MC74VHCT125A 是高速 CMOS 四路总线缓冲器,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,同时还保持 CMOS 低功耗。MC74VHCT125A 需要将 3 态控制输入 (OEbar) 设置为高电平才能将输出置于高阻抗状态。VHCT 输入与 TTL 电平兼容。此器件具有全 5V CMOS 电平输出摆幅,可用作电平转换器,将 3.3V 联接至 5.0V。VHCT125A 输入结构在应用 0 V 至 5.5 V 的电压时提供保护,而无论电源电压如何。输出结构还会在 VCC = 0V 时提供保护。这些输入和输出结构有助于防止电源电压 - 输入/输出电压不匹配、电池备用、热插入等导致的器件损坏。该内部电路由三级组成,包括一个提供高抗扰性和稳定输出的缓冲器输出。输入耐压达 7V,支持 5V 系统到 3V 系统的接口。

  • High Speed: tPD = 3.8ns (Typ) at VCC = 5V
  • Low Power Dissipation: ICC = 4mA (Max) at TA = 25°C
  • TTL-Compatible Inputs: VIL = 0.8V; VIH = 2.0V
  • Power Down Protection Provided on Inputs
  • Balanced Propagation Delays
  • Designed for 2V to 5.5V Operating Range
  • Low Noise: VOLP = 0.8V (Max)
  • Pin and Function Compatible with Other Standard Logic Families
  • Latchup Performance Exceeds 300mA
  • ESD Performance: HBM > 2000V; Machine Model > 200V
  • Chip Complexity: 72 FETs or 18 Equivalent Gates
  • Pb-Free Packages are Available*

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MC74VHCT125ADR2G

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A

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SOIC-14

1

260

REEL

2500

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4

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4.5

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7.5

8

$0.2255

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MC74VHCT125ADTRG

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H

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TSSOP-14 WB

1

260

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2500

N

4

3-State

4.5

5.5

7.5

8

$0.2303

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NLVVHCT125ADTRG

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Pb

A

H

P

TSSOP-14 WB

1

260

REEL

2500

N

4

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4.5

5.5

7.5

8

Price N/A

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