74HCT244A Просмотр технического описания (PDF) - ON Semiconductor

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74HCT244A

Octal 3−State Noninverting Buffer/Line Driver/Line Receiver with LSTTL−Compatible Inputs

ON Semiconductor 

DEVICE

UNDER

TEST

TEST POINT

OUTPUT

CL*

*Includes all probe and jig capacitance

Figure 3.

MC74HCT244A

TEST CIRCUITS

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 4.

DATA INPUT

A OR B

LOGIC DETAIL

TO THREE OTHER

A OR B INVERTERS

ONE OF 8

BUFFERS

VCC

YA

OR

YB

ENABLE A OR ENABLE B

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