Logic Gates | MM74HCT540

反相八路 3 态缓冲器

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MM74HCT540 和 MM74HCT541 3 态缓冲器采用先进的 CMOS 工艺，是通用型高速反相和非反相缓冲器。它们具有高驱动电流输出，即使在驱动大总线电容时也能实现高速运行。这些电路与低功耗肖特基器件相比实现了更高速度，同时保留了 CMOS 的低功耗。两个器件均兼容 TTL 输入，具有相当于 15 个 LS-TTL 输入的扇出。MM74HCT 器件适用于 TTL 和 NMOS 组件与标准 CMOS 器件之间的接口。此类零件也是 LS-TTL 器件的插件替代品，可用于降低现有设计的功耗。MM74HCT540 是反相缓冲器，MM74HCT541 是非反相缓冲器。该 3 态控制门极作为两输入 NOR 运行，因此当 G1# 或 G2# 为高电平时，所有八个输出均为高阻抗状态。为了增强 PC 板布局，MM74HCT540 和 MM74HCT541 提供的引脚输出为输入和输出位于封装的对侧。通过对二极管联接 VCC 和接地，防止所有输入因静电放电受损。

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

  • 兼容TTL输入
  • 典型传播延迟： 12 ns
  • 3态输出用于连接系统总线
  • 低静态电流： 80 µA
  • 输出电流： 6 mA（最小值）

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MM74HCT540MTC

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Obsolete

CAD Model

Pb

A

H

P

TSSOP-20

948AQ

1

260

TUBE

1825

N

Buffer

8

4.5

5.5

12

7.2

Price N/A

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MM74HCT540MTCX

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Active

CAD Model

Pb

A

H

P

TSSOP-20

948AQ

1

260

REEL

2500

N

Buffer

8

4.5

5.5

12

7.2

$0.3523

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MM74HCT540WM

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Obsolete

CAD Model

Pb

A

H

P

SOIC-20W

751BJ

1

260

TUBE

1080

N

Buffer

8

4.5

5.5

12

7.2

Price N/A

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MM74HCT540WMX

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Obsolete

CAD Model

Pb

A

H

P

SOIC-20W

751BJ

1

260

REEL

1000

N

Buffer

8

4.5

5.5

12

7.2

Price N/A

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Die Related Summary Data

Device: MM74HCT540WM

Equivalent to wafer fab process: CMOS STD

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等效器件小时

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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Data is based on the following assumptions.

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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