ICS94215 Datasheet, PDF (12/18 Pages) Integrated Circuit Systems – Programmable System Clock Chip for AMD - K7™ Processor

ICS94215
Electrical Characteristics - CPUCLK (Open Drain)
TA = 0 - 70º C; VDD = 3.3 V +/-5%; CL = 20 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
Output Impedance
Output High Voltage
Output Low Voltage
Output Low Current
Rise Time¹
Fall Time¹
Differential voltage-AC¹
Differential voltage-DC¹
Z₀
V_OH2B
V_OL2B
I_OL2B
t_r2B
tf2B
V_DIF
V_DIF
V_O = V_X
Termination to Vpull-up(external)
V_OL = 0.3 V
V_OL = 0.3 V, V_OH = 1.2 V
V_OH = 1.2 V, V_OL = 0.3 V
Note 2
Note 2
Differential Crossover
Duty Cycle¹
Skew¹
Jitter, Cycle-to-cycle¹
Jitter, Absolute¹
Notes:
V_X
d_t2B
t_sk2B
t_jcyc-cyc2B
t_jabs2B
Note 3
V_T = 50%
V_T = 50%
V_T = VX
V_T = 50%
MIN
1
18
0.4
0.2
550
45
-250
1 - Guaranteed by design, not 100% tested in production.
2 - VDIF specifies the minimum input differential voltages (VTR-VCP) required for switching, where VTR is the "true"
input level and VCP is the "complement" input level.
3 - Vpullup(external) = 1.5V, Min = Vpullup(external)/2-150mV; Max=(Vpullup(external)/2)+150mV
TYP
51
163
201
MAX
1.2
0.4
0.9
0.9
Vpu
+0.6
1100
55
200
250
250
UNITS
V
V
mA
ns
ns
V
V
mV
%
ps
ps
ps
Electrical Characteristics - CPU (Push-Pull)
T_A = 0 - 70°C; V_DDL = 2.5 V +/-5%; VDDL = 2.5 V +/-5%; C_L = 10-20 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
Output Impedance¹
R_DSP2B
V_O = V_DD*(0.5)
10
20
Output Impedance¹
R_DSN2B
V_O = V_DD*(0.5)
10
20
Output High Voltage
V_OH2B
I_OH = -12.0 mA
2
Output Low Voltage
V_OL2B
I_OL = 12 mA
0.4
Output High Current
I_OH2B
V_OH = 1.7 V
-19
Output Low Current
Rise Time¹
Fall Time¹
I_OL2B
t_r2B
t_f2B
V_OL = 0.7 V
V_OL = 0.4 V, V_OH = 2.0 V
V_OH = 2.0 V, V_OL = 0.4 V
19
0.4 1.2 1.6
0.4 1.1 1.6
Duty Cycle¹
d_t2B
V_T = 1.25 V
45 46.9 55
Skew window^0:1
t_sk2B
V_T = 1.25 V
43 175
Skew window^0:2
t_sk2B
V_T = 1.25 V
142 375
Jitter, Cycle-to-cycle¹
t_jcyc-cyc
V_T = 1.25 V, CPU=66 MHz
177 250
1_{Guaranteed by design, not 100% tested in production.}
UNITS
W
W
V
V
mA
mA
ns
ns
%
ps
ps
ps
0442C—07/03/02
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