ICS9248-73 Datasheet, PDF (10/15 Pages) Integrated Circuit Systems – Frequency Timing Generator for Pentium II Systems

ICS9248 - 73
Electrical Characteristics - PCICLK
T_A = 0 - 70º C; V_DD = 3.3 V +/-5%, V_DDL = 2.5 V +/-5%; C_L = 60 pF for PCI0 & PCI1, CL = 30 pF for other PCIs
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Output High Voltage VOH1 IOH = -11 mA; Pci0 & Pci1
2.4 3.2
V
Output High Voltage
VOH1 IOH = -11 mA
2.4 3.1
V
Output Low Voltage
VOL1 IOL = 9.4 mA; Pci0 & Pci1
0.12 0.4 V
Output Low Voltage
VOL1 IOL = 9.4 mA
0.2 0.4 V
Output High Current
IOH1 VOH = 2.0 V; Pci0 & Pci1
-110 -22 mA
Output High Current
IOH1
VOH = 2.0 V
-55 -22 mA
Output Low Current
IOL1 VOL = 0.8 V; Pci0 & Pci1
25
82
mA
Output Low Current
IOL1
VOL = 0.8 V
25
42
mA
Rise Time¹
tr1
VOL = 0.4 V, VOH = 2.4 V; PCI0:1, CL=60pF
VOL = 0.4 V, VOH = 2.4 V; PCI2:7
0.5 1.5 2.3 ns
0.5 1.7 2.3 ns
Fall Time¹
Duty Cycle¹
tf1
VOH = 2.4 V, VOL = 0.4 V; PCI0:1, CL=60pF
VOH = 2.4 V, VOL = 0.4 V; PCI2:7
dt1
VT = 1.5 V
0.5 1.4
2
ns
0.5 1.7
2
ns
45
50
55
%
Skew¹
tsk1 VT = 1.5 V; CL=60pF for Pci0 & PCI1
VT = 1.5 V; CL=50pF for Pci0 & PCI1
545
ps
360 500 ps
VT = 1.5 V; CL=40pF for Pci0 & PCI1
Jitter, Cycle-to-cycle¹ t_jcyc-cyc1 V_T = 1.5 V
1_{Guaranteed by design, not 100% tested in production.}
455
ps
130 500 ps
10