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© Koninklijke Philips Electronics N.V. 2005. All rights reserved.

Product data sheet

Rev. 01 — 13 October 2005

4 of 17

Philips Semiconductors

PCK9447

3.3 V/2.5 V 1 : 9 LVCMOS clock fan-out buffer

6.

Functional description

6.1 Function table

[1]

OE = 0 will high-impedance 3-state all outputs independent of CLK_STOP.

7.

Limiting values

8.

Characteristics

8.1 General characteristics

[1]

200 pF capacitor discharged via a 10

Ω resistor and a 0.75 µH inductor

[2]

100 pF capacitor discharged via a 1.5 k

Ω resistor

Table 3:

Function table

Control

Default

Logic 0

Logic 1

CLK_SEL

1

CCLK0 input selected

CCLK1 input selected

OE

1

outputs disabled

(high-impedance state) [1]

outputs enabled

CLK_STOP

1

outputs synchronously stopped

in logic LOW state

outputs active

Table 4:

Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol

Parameter

Conditions

Min

Max

Unit

supply voltage

−0.3

+3.9

V

input voltage

−0.3

V

output voltage

−0.3

V

input current

-

±20

mA

output current

-

±50

mA

storage temperature

−65

+125

°C

Table 5:

General characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

termination voltage

(output)

-

V

electrostatic discharge

voltage

Machine Model

[1] 200

-

-

V

Human Body

Model

[2] 2000

-

-

V

latch-up protection

current

200

-

-

mA

power dissipation

capacitance

per output

-

10

-

pF

input capacitance

inputs

-

4.0

-

pF