PI6C18551 datasheet(4/5 Pages) PERICOM

4 / 5 page

PS8733A

09/27/04

PI6C18551

3.3V/5V 1 to 4 Clock Buffer

AC Electrical Characteristics (VDD = 3.3±5%, TA = -40 to 85°C)

Symbol

Parameters

Condition

Min.

Typ.

Max.

Units

Fin

Input Frequency

160

MHz

Output Frequency

3.3V, 15pF load(5)

160

Output Frequency

5V, l5pF load(5)

135

Rise Time

0.8V to 2.0V

1.5

Fall Time

2.0V to 0.8V

1.5

TPD

Propagation Delay

3.3V, 135MHz(2)

TPD

Propagation Delay

5V, 135MHz(2)

1.5

TSK

Output Skew

VDD/2(3)

250

Notes:

1. With rail to rail input clock.

2. All outputs with equal loading.

3. Duty cycle on outputs will match incoming clock duty cycle.

4. With external series resistor 33Ω positioned close to each output pin.

DC Electrical Characteristics (VDD = 5V ±5%, TA = -40 to 85°C)

Symbol

Parameters

Condition

Min.

Typ.

Max.

Units

VDD

5V I/O Supply Voltage

4.75

5.25

VIH

Input High Voltage

CLK_IN, Note 1

VDD/2 + 1

5.5

VDD

VIL

Input Low Voltage

CLK_IN, Note 1

VDD/2 - 1

0.8

VOH

Output High Voltage

IOH = -35mA

2.4

VOL

Output Low Voltage

IOL = 35mA

0.4

VOH

Output High Voltage (CMOS

Level)

IOH = -12mA

VDD – 0.4

IDD

Power Supply Current

No load at 135MHz

Output Impedance

Ω

Cin

Input Capacitance

CLK_IN

TBD

RPU

Internal Pull-up Resistor

CLK_IN & OE

kΩ

IOS

Short Circuit Current

Notes:

1. Nominal switching threshold is VDD/2

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