ICS950508 Datasheet, PDF (13/19 Pages) Integrated Circuit Systems – Programmable Timing Control HubTM for PII/IIITTM

Integrated
Circuit
Systems, Inc.
ICS950508
Electrical Characteristics - SDRAM
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%, C_L = 20 - 30 pF (unless otherwise stated)
PARAMETER
Output Impedance¹
Output Impedance¹
Output High Voltage
Output Low Voltage
SYMBOL
R_DSP3
R_DSN3
V_OH3
V_OL3
CONDITIONS
Vo=V_DD*(0.5)
Vo=V_DD*(0.5)
I_OH = -1 mA
I_OL = 1 mA
Output High Current
I_OH3
V_OH@MIN = 2 V
V_OH@MAX = 3.135V
Output Low Current
Rise Time¹
Fall Time¹
Duty Cycle¹
Skew¹
Jitter, cycle-to-cycle¹
I_OL3
t_r3
t_f3
d_t3
t_sk3
t_jcyc-cyc3
V_OL@MIN = 1 V
V_OL@MAX =0.4V
V_OL = 0.4 V, V_OH = 2.4 V
V_OH = 2.4 V, V_OL = 0.4 V
V_T = 1.5 V
V_T = 1.5 V
V_T = 1.5 V
1_{Guaranteed by design, not 100% tested in production.}
MIN TYP MAX UNITS
10
24
Ω
10
24
Ω
2.4
V
0.4
V
-46
mA
-54
54
mA
53
0.4 1.2 1.6 ns
0.4 0.9 1.6 ns
45
50
55
%
218 250 ps
225 250 ps
Electrical Characteristics - 3V66
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%; C_L = 10-30 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
Output Impedance¹
Output Impedance¹
R_DSP1
R_DSN1
V_O = V_DD*(0.5)
V_O = V_DD*(0.5)
Output High Voltage
V_OH1 I_OH = -1 mA
Output Low Voltage
V_OL1
I_OL = 1 mA
Output High Current
I_OH1
V_{OH @ MIN} = 1.0 V
V_{OH @ MAX} = 3.135 V
Output Low Current
Rise Time¹
Fall Time¹
Duty Cycle¹
Skew ¹
Jitter, Cycle-to-cycle¹
I_OL1
t_r1
t_f1
d_t1
t_sk1
t_jcyc-cyc1
V_{OL @ MIN} = 1.95 V
V_{OL @ MAX} = 0.4 V
V_OL = 0.4 V, V_OH = 2.4 V
V_OH = 2.4 V, V_OL = 0.4 V
V_T = 1.5 V
V_T = 1.5 V
V_T = 1.5 V
1_{Guaranteed by design, not 100% tested in production.}
MIN TYP MAX UNITS
12
55
Ω
12
55
Ω
2.4
V
0.55 V
-33 _mA
-33
30
mA
38
0.4 1.55 2
ns
0.4 1.65 2
ns
45
53
55
%
94 175 ps
350 500 ps
0470E—04/06/05
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