PCK9447 datasheet(5/17 Pages) PHILIPS

5 / 17 page

9397 750 12522

Product data sheet

Rev. 01 — 13 October 2005

5 of 17

Philips Semiconductors

PCK9447

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

8.2 Static characteristics

[1]

The PCK9447is capable of driving 50

Ω transmission lines on the incident edge. Each output drives one 50 Ω parallel terminated

transmission line to a termination voltage of VTT. Alternatively, the device drives up to two 50 Ω series terminated transmission lines

(VCC = 3.3 V).

[2]

Inputs have pull-down or pull-up resistors affecting the input current.

[3]

Iq(max) is the DC current consumption of the device with all outputs open and the input in its default state or open.

[1]

The PCK9447 is capable of driving 50

Ω transmission lines on the incident edge. Each output drives one 50 Ω parallel terminated

transmission line to a termination voltage of VTT. Alternatively, the device drives one 50 Ω series terminated transmission line per output

(VCC = 2.5 V).

[2]

Inputs have pull-down or pull-up resistors affecting the input current.

[3]

Iq(max) is the DC current consumption of the device with all outputs open and the input in its default state or open.

Table 6:

Static characteristics (3.3 V)

Tamb = −40 °C to +85 °C; VCC = 3.3 V ± 5%

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIH

HIGH-state input voltage

LVCMOS

2.0

VCC + 0.3 V

VIL

LOW-state input voltage

LVCMOS

–0.3

+0.8

VOH

HIGH-state output voltage

IOH = −24 mA

[1] 2.4

VOL

LOW-state output voltage

IOL = 24 mA

0.55

IOL = 12 mA

0.30

output impedance

Ω

input current

VI =VCC or GND

[2] --

±300

µA

Iq(max)

maximum quiescent current

all VCC pins

[3] -

2.0

Table 7:

Static characteristics (2.5 V)

Tamb = −40 °C to +85 °C; VCC = 2.5 V ± 5%

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIH

HIGH-state input voltage

LVCMOS

1.7

VCC + 0.3 V

VIL

LOW-state input voltage

LVCMOS

−0.3

+0.7

VOH

HIGH-state output voltage

IOH = −15 mA

[1] 1.8

VOL

LOW-state output voltage

IOL =15mA

0.6

output impedance

Ω

input current

VI =VCC or GND

[2] --

±300

µA

Iq(max)

maximum quiescent current

all VCC pins

[3] -

2.0

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