ICS94211AFLF Datasheet, PDF (11/17 Pages) Integrated Device Technology – Programmable System Frequency Generator for PII/III™

ICS94211
Electrical Characteristics - CPU
T_A = 0 - 70°C;VDD = 3.3V; V_DDL = 2.5 V +/-5%; C_L = 10 - 20 pF (unless otherwise stated)
PARAMETER SYMBOL
CONDITIONS
MIN TYP
Output Impedance¹
Output Impedance¹
R_DSP2B
R_DSN2B
Vo=V_DD*(0.5)
Vo=V_DD*(0.5)
13.5 15
13.5 16.5
Output High Voltage V_OH2B I_OH = -1 mA
2 2.48
Output Low Voltage V_OL2B I_OL = 1 mA
0.04
Output High Current
I_OH2B
V_OH@MIN = 1 V
V_OH@MAX = 2.375V
-60
-27 -7
Output Low Current
I_OL2B
V_OL@MIN = 1.2 V
V_OL@MAX =0.3V
Rise Time¹
t_r2B
V_OL = 0.4 V, V_OH = 2.0 V
Fall Time¹
t_f2B
V_OH = 2.0 V, V_OL = 0.4 V
Duty Cycle¹
d_t2B
V_T = 1.25 V
Skew¹
t_sk2B V_T = 1.25 V
Jitter, Cycle-to-cycle¹ t_jcyc-cyc2B
V_T = 1.25 V, CPU 66, SDRAM 100
1_{Guaranteed by design, not 100% tested in production.}
27 63
20
0.4 1.2
0.4 0.9
45 46.9
12.7
150
MAX UNITS
45
Ω
45
Ω
V
0.4 V
-27 _mA
mA
30
1.6 ns
1.6 ns
55 %
175 ps
250 ps
Electrical Characteristics - PCI
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%, C_L = 40 pF for PCI0-1, C_L = 10 - 30 pF for other PCIs (unless otherwise sta
PARAMETER SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Output Impedance¹
Output Impedance¹
R_DSP1
R_DSN1
Vo=V_DD*(0.5)
Vo=V_DD*(0.5)
12
55
Ω
12
55
Ω
Output High Voltage V_OH1 I_OH = -1 mA
2.4
V
Output Low Voltage V_OL1 I_OL = 1 mA
0.55 V
Output High Current
I_OH1
V_OH@MIN = 1 V
V_OH@MAX = 3.135V
-33
mA
-33
Output Low Current
I_OL1
V_OL@MIN = 1.95 V
V_OL@MAX =0.4V
30
mA
38
Rise Time¹
t_r1
V_OL = 0.4 V, V_OH = 2.4 V,
0.5 1.5
2
ns
Fall Time¹
Duty Cycle¹
Skew¹
Jitter, cycle-to-cycle¹
t_f1
d_t1
t_sk1
t_jcyc-cyc1
V_OL = 2.4 V, V_OH = 0.4 V,
V_T = 1.5 V
V_T = 1.5 V
V_T = 1.5 V
PCI0-3
0.5 _1.5
2
ns
45 52.5 55 %
49 500 ps
200 500 ps
1_{Guaranteed by design, not 100% tested in production.}
0441F—08/24/05
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