MC74VHCT245A(2001) 查看數據表（PDF） - ON Semiconductor

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MC74VHCT245A
(Rev.:2001)

Octal Bus Transceiver

ON Semiconductor 

MC74VHCT245A

DEVICE

UNDER

TEST

TEST POINT

OUTPUT

CL*

*Includes all probe and jig capacitance

Figure 5. Test Circuit

DEVICE

UNDER

TEST

TEST POINT

OUTPUT

1 kΩ

CL*

CONNECT TO VCC WHEN

TESTING tPLZ AND tPZL.

CONNECT TO GND WHEN

TESTING tPHZ AND tPZH.

*Includes all probe and jig capacitance

Figure 6. Test Circuit

A1 2

A2 3

A3 4

A4 5

A5 6

A6 7

A7 8

A8 9

DIR 1

OE 19

18 B1

17 B2

16 B3

15 B4

14 B5

13 B6

12 B7

11 B8

Figure 7. Expanded Logic Diagram

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