ICS9148-18 Datasheet, PDF (7/11 Pages) Integrated Circuit Systems – Pentium/ProTM System Clock Chip

ICS9148-18
Absolute Maximum Ratings
SupplyVoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.0V
Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND –0.5 V to V_DD +0.5 V
Ambient OperatingTemperature . . . . . . . . . . . . 0°C to +70°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 - 70C; Supply Voltage VDD = VDDL = 3.3 V +/-5% (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Input High Voltage
VIH
2
VDD+0.3 V
Input Low Voltage
Input High Current
Input Low Current
VIL
VSS-0.3
0.8
V
IIH
VIN = VDD
0.1
5
µA
IIL1 VIN = 0 V; Inputs with no pull-up resistors
-5
2.0
µA
Operating
IDD3.0(66) CL = 0 pF; Select @ 66MHz
28 100 mA
Supply Current
IDD3.3(100) CL = 0 pF; Select @ 100MHz
33 100
Power Down
IDD3.3P D CL = 0 pF
100 150 µA
Supply Current
Input frequency
Input Capacitance¹
Fi
VDD = 3.3 V; All outputs loaded
CIN
Logic Inputs
14.318
5
MHz
pF
Transition Time¹
Settling Time¹
Clk Stabilization¹
Skew¹
CINX
Ttrans
Ts
TSTAB
TCP U-P CI1
X1 & X2 pins
To 1st crossing of target Freq.
From 1st crossing to 1% target Freq.
From VDD = 3.3 V to 1% target Freq.
VT = 1.5 V;
27
36
45
pF
3
ms
5
ms
3
ms
1.5
3
4
ns
1_{Guaranteed by design, not 100% tested in production.}
Electrical Characteristics - Input/Supply/Common Output Parameters
TA = 0 - 70C; Supply Voltage VDD = 3.3 V +/-5%, VDDL = 2.5 V +/-5% (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Operating
IDD2.5(66) CL = 0 pF; Select @ 66.8 MHz
3
25
mA
Supply Current
IDD2.5(100) CL = 0 pF; Select @ 100 MHz
4
25
mA
Power Down
IDD2.5P D CL = 0 pF
100
µA
Supply Current
Skew¹
tCPU-PCI2 VT = 1.5 V; VTL = 1.25 V
1.5
3
4
ns
1_{Guaranteed by design, not 100% tested in production.}
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