PI49FCT2807TH(2001) 데이터 시트보기 (PDF) - Pericom Semiconductor

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PI49FCT2807TH
(Rev.:2001)

Fast CMOS Clock Driver

Pericom Semiconductor 

PI49FCT807/2807T

Fast CMOS Clock Driver 1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122

Tests Circuits For All Outputs(1)

VCC

VIN

Pulse

Generator

VOUT

D.U.T.

500Ω

50pF

RT

CL

500Ω

Switch Position

Test

Open Drain

7.0V

Disable LOW

Enable LOW

All Other Inputs

Switch

Closed

Open

Definitions:

CL = Load capacitance: includes jig and probe capacitance.

RT = Termination resistance: should be equal to ZOUT of the

Pulse Generator.

Switching Waveforms

Propagation Delay

Input

Output

tPLH

tR

3V

1.5V

0V

tPHL

VOH

2.0V

1.5V

0.5V

VOL

tF

Output Skew – tSK(o)

Input

tPLHx

Ox

tSK(o)

Oy

tPLHy

3V

1.5V

tPHLx

0V

VOH

1.5V

VOL

tSK(o)

VOH

1.5V

VOL

tPHLy

tSK(o) =  tPLHy • tPLHx  or  tPHLy • tPHLx 

Pulse Skew – tSK(p)

Input

tPLH

Output

tPHL

tSK(p) =  tPHL • tPLH 

3V

1.5V

0V

VOH

1.5V

VOL

Package Skew – tSK(t)

Input

tPLH1

Package 1

Output

tSK(t)

Package 2

Output

tPLH2

3V

1.5V

tPHL1

0V

VOH

1.5V

VOL

tSK(t)

VOH

1.5V

VOL

tPHL2

tSK(t) =  tPLH2 • tPLH1  or  tPHL2 • tPHL1 

4

PS7008C 06/26/01

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