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ICS9248-199

Frequency Generator for SIS 735/740 with AMD K7 Processor

Integrated Circuit Systems 

ICS9248-199

Absolute Maximum Ratings

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V

Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . GND –0.5 V to VDD +0.5 V

Ambient Operating Temperature . . . . . . . . . . 0°C to +70°C

Case Temperature . . . . . . . . . . . . . . . . . . . . . . 115°C

Storage Temperature . . . . . . . . . . . . . . . . . . . . –65°C to +150°C

Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. These

ratings are stress specifications only and functional operation of the device at these or any other conditions above those

listed in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions

for extended periods may affect product reliability.

Electrical Characteristics - Input/Supply/Common Output Parameters

TA = 0 - 70°C; Supply Voltage VDD = 3.3 V +/-5% (unless otherwise stated)

PARAMETER

SYMBOL

CONDITIONS

Input High Voltage

VIH

Input Low Voltage

VIL

Operating Supply Current

IDD

IDDL

Power Down

PD

CL =30 pF PCI, SDRAM, 20 pF other outputs

Input frequency

Fi

VDD = 3.3 V

Input Capacitance1

Transistion Time1

Settling Time1

Clk Stabilization1

Skew1

CIN

CINX

Ttrans

Ts

TSTAB

TCPU - PCI

Logic Inputs

X1 & X2 pins

To 1st crossing of target frequency

From 1st crossing to 1% of target frequency

From VDD = 3.3 V to 1% of target frequency

VT = 1.5 V; VTL = 50% VDD

Skew1

TCPU - AGP VT = 1.5 V; VTL = 50% VDD

1Guaranteed by design, not 100% tested in production.

MIN TYP MAX UNITS

2

VDD + 0.3 V

VSS - 0.3

0.8

V

134

180

mA

27

39

280

600

12 14.318 16

mA

uA

MHz

5

pF

27

45

pF

3

ms

ms

11

15

ms

1

1.8

4

ns

1

1.6

4

ns

0376E—12/23/02

11

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