MC74VHC126 データシートの表示（PDF） - ON Semiconductor

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MC74VHC126

Quad Bus Buffer with 3--State Control Inputs

ON Semiconductor 

50%

A

tPLH

50% VCC

Y

Figure 2.

MC74VHC126

SWITCHING WAVEFORMS

VCC

GND

tPHL

OE

50%

tPZL tPLZ

Y

50% VCC

tPZH tPHZ

Y

50% VCC

Figure 3.

VCC

GND

HIGH

IMPEDANCE

VOL + 0.3V

VOH -- 0.3V

HIGH

IMPEDANCE

DEVICE

UNDER

TEST

TEST POINT

OUTPUT

CL*

DEVICE

UNDER

TEST

TEST POINT

1 kΩ

OUTPUT

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. Test Circuit

*Includes all probe and jig capacitance

Figure 5. Test Circuit

INPUT

Figure 6. Input Equivalent Circuit

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