ICS9148-12 Datasheet, PDF (12/18 Pages) Integrated Circuit Systems – Pentium/ProTM System Clock Chip

ICS9148-12
Absolute Maximum Ratings
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.0V
Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND –0.5 V to V_DD +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
T_A = 0 - 70C; Supply Voltage V_DD = V_DDL = 3.3 V +/-5% (unless otherwise stated)
PARAMETER SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Input High Voltage
Input Low Voltage
Input High Current
Input Low Current
Input Low Current
Operating
Supply Current
Power Down
Supply Current
V_IH
V_IL
I_IH
I_IL1
I_IL2
I_DD3.3OP
V_IN = V_DD
V_IN = 0 V; Inputs with no pull-up resistors
V_IN = 0 V; Inputs with pull-up resistors
C_L = 0 pF; Select @ 66M
2
V_DD+0.3 V
V_SS-0.3
0.8
V
0.1
5
µA
-5 2.0
µA
-200 -100
µA
60 100 mA
I_DD3.3PD C_L = 0 pF; With input address to Vdd or GND
400 600 µA
Input frequency
Input Capacitance¹
F_i
V_DD = 3.3 V;
C_IN Logic Inputs
Transition Time¹
Settling Time¹
Clk Stabilization¹
Skew¹
C_INX X1 & X2 pins
T_trans To 1st crossing of target Freq.
T_s
From 1st crossing to 1% target Freq.
T_STAB From V_DD = 3.3 V to 1% target Freq.
T_CPU-SDRAM1 V_T = 1.5 V
T_CPU-PCI1 V_T = 1.5 V;
1_{Guarenteed by design, not 100% tested in production.}
14.318
5
27 36 45
3
3
200 500
1.5 3.2 4.5
MHz
pF
pF
ms
ms
mS
ps
ns
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
Operating
IDD2.5OP CL = 0 pF; Select @ 66M
5
20
Supply Current
Power Down
IDD2.5PD CL = 0 pF;
0.21 1.0
Supply Current
Skew¹
TCPU-SDRAM2 VT = 1.5 V; VTL = 1.25 V; SDRAM Leads
TCPU-PCI2 VT = 1.5 V; VTL = 1.25 V; CPU Leads
150 500
1
2.8
4
1_{Guarenteed by design, not 100% tested in production.}
UNITS
mA
µA
ps
ns
12