MC74HC245AF datasheet(5/9 Pages) ONSEMI

Part #	MC74HC245AF

Description	Octal 3?뭆tate Noninverting Bus Transceiver High?뭁erformance Silicon?묰ate CMOS

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Manufacturer	ONSEMI [ON Semiconductor]

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MC74HC245A

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5

VCC

GND

tf

tr

INPUT

A OR B

OUTPUT

B OR A

10%

50%

90%

10%

50%

90%

tTLH

tPLH

tPHL

tTHL

Figure 3. Switching Waveform

OUTPUT

ENABLE

A OR B

50%

90%

10%

tPZL

tPLZ

tPZH

tPHZ

VCC

GND

HIGH

IMPEDANCE

VOL

VOH

HIGH

IMPEDANCE

VCC

GND

50%

Figure 4. Switching Waveform

DIRECTION

OUTPUT

*Includes all probe and jig capacitance

CL*

TEST POINT

DEVICE

UNDER

TEST

Figure 5. Test Circuit

*Includes all probe and jig capacitance

CL*

TEST POINT

DEVICE

UNDER

TEST

OUTPUT

Figure 6. Test Circuit

CONNECT TO VCC WHEN

TESTING tPLZ AND tPZL.

CONNECT TO GND WHEN

TESTING tPHZ AND tPZH.

1 k

W

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