MC74LVX245 データシートの表示（PDF） - ON Semiconductor

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MC74LVX245

Octal Bus Transceiver With 5 V−Tolerant Inputs

ON Semiconductor 

Input

A or B

50%

tPLH

Output

B or A

50% VCC

Figure 3.

MC74LVX245

SWITCHING WAVEFORMS

T/R

VCC

GND

tPHL

OE

A or B

A or B

50% VCC

tPZL

tPLZ

50% VCC

tPZH

tPHZ

50% VCC

Figure 4.

50%

50% VCC

VCC

GND

VCC

GND

HIGH

IMPEDANCE

VOL +0.3V

VOH −0.3V

HIGH

IMPEDANCE

DEVICE

UNDER

TEST

TEST POINT

OUTPUT

CL*

TEST CIRCUITS

DEVICE

UNDER

TEST

TEST POINT

OUTPUT

1 kW

CL*

CONNECT TO VCC WHEN

TESTING tPLZ AND tPZL.

CONNECT TO GND WHEN

TESTING tPHZ AND tPZH.

*Includes all probe and jig capacitance

Figure 5. Propagation Delay Test Circuit

*Includes all probe and jig capacitance

Figure 6. 3−State Test Circuit

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