ICS950401 Datasheet, PDF (9/14 Pages) Integrated Circuit Systems – AMD - K8TM System Clock Chip

ICS950401
Electrical Characteristics - CPUCLK
T_A = 0 - 70º C; V_DD = 3.3 V +/-5%; C_L = 20 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
Output Impedance
Output High Voltage
Output Low Voltage
Output Low Current
Rise Edge Rate¹
Z_O
V_O = V_X
15
V_OH2B
1
V_OL2B
I_OL2B
V_OL = 0.3 V
18
Measured from 20-80%
2
Fall Edge Rate¹
Measured from 80-20%
2
V_DIFF
Differential Voltage,
Measured @ the Hammer
0.4
test load (single-ended
measurement)
MAX
55
1.2
0.4
7
7
2.3
UNITS
Ω
V
V
mA
V/ns
V/ns
V
∆ V_DIFF
Change in V_{DIFF_DC}
magnitude, Measured @ the _-150
Hammer test load (single-
ended measurement)
150
mV
Common Mode Voltage,
V_CM
Measured @ the Hammer
1.05
test load (single-ended
1.45
V
measurement)
Change in Common Mode
∆ V_CM
Voltage, Measured @ the
-200
Hammer test load (single-
200
mV
ended measurement)
Duty Cycle¹
d_t2B
V_T = 50%
45
Jitter, Cycle-to-cycle¹
t_jcyc-cyc2B
V_T = V_X
0
53
%
200
ps
Notes:
1 - Guaranteed by design, not 100% tested in production.
2 - V_DIF specifies the minimum input differential voltages (V_TR-V_CP) required for switching, where V_TR is the "true"
input level and V_CP is the "complement" input level.
3 - Vpullup_(external) = 1.5V, Min = Vpullup_(external)/2-150mV; Max=(Vpullup_(external)/2)+150mV
0499C—11/01/04
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