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| ICS950908 Datasheet, PDF (15/22 Pages) Integrated Circuit Systems – Programmable Timing Control Hub™ for P4™ | |||
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Integrated
Circuit
Systems, Inc.
ICS950908
Preliminary Product Preview
Electrical Characteristics - SDRAM
TA = 0 - 70°C; VDD = 3.3V +/-5%, VDDL = 2.5V +/-5%; CL = 30 pF (unless otherwise stated)
PARAMETER SYMBOL
CONDITIONS
MIN TYP
Output High Voltage VOH3 IOH = -28 mA
2.4
Output Low Voltage VOL3 IOL = 20 mA
Output High Current
IOH3
VOH = 2.0 V
Output Low Current
IOL3
VOL = 0.8 V
41
Rise Time1
tr3
VOL = 0.4 V, VOH = 2.4 V
Fall Time1
tf3
VOH = 2.4 V, VOL = 0.4 V
Duty Cycle1
dt3
VT = 1.5 V
45
Skew window1
Propagation Time1
(Buffer In to Output)
tsk3
Tprop
VT = 1.5 V
VT = 1.5 V
1Guaranteed by design, not 100% tested in production.
MAX UNITS
V
0.4 V
-40 mA
mA
2
ns
2
ns
55 %
250 ps
5
ns
Electrical Characteristics - DDRT/C
TA = 0 - 70°C; VDDL = 2.5 V +/-5%, CL = 20 pF (unless otherwise stated)
PARAMETER SYMBOL
CONDITIONS
Output High Voltage
Output Low Voltage
VOH3
VOL3
IOH = -11 mA
IOL = 11 mA
Output High Current
Output Low Current
Rise Time1
Fall Time1
Duty Cycle1
Skew1(window)
Jitter
IOH3
IOL3
Tr31
Tf31
Dt31
Tsk1
tjcyc
-c
1
yc
VOH = 2.0 V
VOL = 0.8 V
20% to 80%
80% to 20%
VT = 50%
VT = 50%
VT = 1.25 V
MIN TYP MAX UNITS
2
V
0.4 V
-12 mA
12
mA
2.2 ns
2.2 ns
47
53 %
250 ps
250 ps
0653Aâ07/26/04
15
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