MC74HC00A 查看數據表（PDF） - ON Semiconductor

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MC74HC00A

Quad 2-Input NAND Gate - High−Performance Silicon−Gate CMOS

ON Semiconductor 

MC74HC00A

tf

tr

INPUT

A OR B

90%

50%

10%

tPLH

OUTPUT Y

90%

50%

10%

tTLH

VCC

GND

tPHL

tTHL

Figure 1. Switching Waveforms

DEVICE

UNDER

TEST

TEST

POINT

OUTPUT

CL*

*Includes all probe and jig capacitance

Figure 2. Test Circuit

A

Y

B

Figure 3. Expanded Logic Diagram

(1/4 of the Device)

http://onsemi.com

5

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