ICS950602 Datasheet, PDF (12/16 Pages) Integrated Circuit Systems – Programmable Timing Control Hub for PII/III

Integrated
Circuit
Systems, Inc.
ICS950602
Electrical Characteristics - SDRAM
T_A = 0 - 70°C; V_DD=3.3V +/-5%; C_L = 10-30 pF (unless otherwise specified)
PARAMETER SYMBOL
CONDITIONS
MIN
Output Impedance¹ R_DSP5 Vo=V_DD*(0.5)
10
Output Impedance¹ R_DSN5 Vo=V_DD*(0.5)
10
Output High Voltage V_OH5 I_OH = -1 mA
2.4
Output Low Voltage V_OL5 I_OL = 1 mA
Output High Current I_OH5 ^{VOH@MIN = 2 V}
V_OH@MAX = 3.135V
-54
Output Low Current
I_OL5
V_OL@MIN = 1 V
54
V_OL@MAX =0.4V
Rise Time
t_r51 ^VOL ^{= 0.4 V, V}OH ^{= 2.4 V}
0.4
Fall Time
t_f51 ^VOH ^{= 2.4 V, V}OL ^{= 0.4 V}
0.4
Duty Cycle
d_t51 ^VT ^{= 1.5 V}
45
Skew
t_sk51 ^VT ^{= 1.5 V}
Propagation delay
SDRAM_IN to
t_pdel51 ^VT ^{= 1.5 V}
SDRAM
1_{Guaranteed by design, not 100% tested in production.}
TYP
1.1
0.75
50
30
2.95
MAX
24
24
0.4
-46
53
1.6
1.6
55
250
4
UNITS
Ω
Ω
V
V
mA
mA
ns
ns
%
ps
ns
Electrical Characteristics - REF
T_A = 0 - 70°C; V_DD=3.3V +/-5%; C_L = 10-20 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
Output Frequency
Output Impedance
F_O41
R_DSP41
V_O = V_DD*(0.5)
Output High Voltage
V_OH41
I_OH = -1 mA
Output Low Voltage
V_OL41
I_OL = 1 mA
Output High Current
Output Low Current
Rise Time
I_OH41
I_OL41
t_r41
V _OH@MIN = 1.0 V, V _OH@MAX = 3.135 V
V_{OL @MIN} = 1.95 V, V_{OL @MAX} = 0.4 V
V_OL = 0.4 V, V_OH = 2.4 V
Fall Time
t_f41
V_OH = 2.4 V, V_OL = 0.4 V
Duty Cycle
Jitter, cycle-to-cycle
d_t11
t_jcyc-cyc41
V_T = 1.5 V
V_T = 1.5 V
1_{Guaranteed by design, not 100% tested in production.}
MIN TYP MAX UNITS
14.318
MHz
20
60
Ω
2.4
V
0.4 V
-29
-23 mA
29
27 mA
1 1.85 4
ns
1 1.95 4
ns
45 55.7 56
%
365 550 ps
0469B—12/18/02
12