Logic Gates | MM74HC244

八路 3 态缓冲器

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概览

MM74HC244 是一款非反相缓冲器，具有两个有效低电平启用（1G 和 2G），每个启用单独控制 4 个缓冲器。此器件没有施密特触发器输入。这些 3 态缓冲器采用先进的硅门极 CMOS 技术，属于通用型高速非反相缓冲器。它们具有高驱动电流输出，即使驱动大型总线电容，也可实现高速运行。这些电路的速度可与低功率肖特基器件相媲美，同时保留了 CMOS 电路的优势，即抗扰性强，功耗低。这三种器件都有 15 个 LS-TTL 等效输入的扇出。通过将二极管箝位到 VCC 和接地，可防止所有输入因静电放电而受损。

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

  • 典型传播延迟： 14 ns
  • 3态输出用于连接系统总线
  • 宽电源范围： 2-6V
  • 低静态电源电流： 80 µA
  • 输出电流： 6 mA

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MM74HC244MTC

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CAD Model

Pb

A

H

P

TSSOP-20

9.48

1

260

TUBE

75

N

Buffer

8

2

6

14

7.8

$0.3188

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MM74HC244MTCX

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CAD Model

Pb

A

H

P

TSSOP-20

948AQ

1

260

REEL

2500

N

Buffer

8

2

6

14

7.8

$0.2533

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MM74HC244WM

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CAD Model

Pb

A

H

P

SOIC-20W

751BJ

3

260

TUBE

38

N

Buffer

8

2

6

14

7.8

$0.3264

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MM74HC244WMX

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Active

CAD Model

Pb

A

H

P

SOIC-20W

751BJ

3

260

REEL

1000

N

Buffer

8

2

6

14

7.8

$0.3264

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可靠性数据

Die Related Summary Data

Device: MM74HC244MTC

Equivalent to wafer fab process: CMOS SUB

产品技术

产品技术

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 SUB

2

920154574

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Re-calculate Data

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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