ICS9248-50 Datasheet, PDF (6/11 Pages) Integrated Circuit Systems – Frequency Timing Generator for Pentium II Systems

ICS9248-50
Absolute Maximum Ratings
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 7.0 V
Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND –0.5 V to V_DD +0.5 V
Ambient Operating Temperature . . . . . . . . . . . . 0°C to +70°C
Case Temperature . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +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 - 70C; Su p p ly Vo ltag e VD D = 3.3 V +/-5% , VD D L = 2.5 V +/-5% (u n les s o th erwis e s tated )
PAR AM ETER
SYM B OL
C ONDITIONS
M IN TYP M AX UNITS
Input High Voltage
Input Low Voltage
Input High C urrent
Input Low Current
Input Low Current
O p e ra t i n g
Supply C urrent
V_IH
V_IL
I_IH
I_IL1
I_IL2
I_{DD3 .3 OP6 6}
I_{DD3 .3 OP1 0 0}
ID D 2 .5 O P 6 6
V_IN = V_DD
V_IN = 0 V; In p u ts with n o p u ll-u p resisto rs
V_IN = 0 V; Inputs with pu ll-up resistors
C_L = 0 pF; Select @ 66MHz
C_L = 0 pF; Select @ 100M Hz
CL = 0 p F; Select @ 66.8 M Hz
2
V_DD+0 .3 V
V_SS-0 .3
0 .8
V
0 .1
5
µ^A
-5
2 .0
µ^A
-200 -100
µ^A
60
180 mA
66
180 mA
16
72
mA
Power Down
Supply C urrent
ID D 2.5O P 100 CL = 0 p F; Select @ 100 M Hz
I_DD3.3PD C _L = 0 p F; With in p u t ad d ress to Vd d o r GND
23
100 mA
70
600
µ^A
Input frequency
Input Capacitance¹
Transition Time¹
Clk Stabilization¹
Skew¹
F_i
C _IN
C _INX
T _{t ran s}
T _STAB
T_CPU-PCI
V_DD = 3 .3 V;
Logic Inputs
X1 & X2 pins
To 1st crossing of target Freq.
Fro m V_DD = 3 .3 V to 1 % targ et Freq .
VT = 1.5 V; VTL = 1.25 V
11 14.318 16
5
27
36
45
3
3
1 .5
3
4
M Hz
pF
pF
ms
ms
ns
6