Electrical Characteristics
Table 4-15. PCI-X 3.3V AC Characteristics
Sym
Parameter
Condition
Min
Max
Unit
Note
Ioh(AC)
Switching Current High
0 < VCC33 –
-74(VCC33-
mA
Vout = 3.6V
Vout)
0 < VCC33 –
-32 (VCC33 –
mA
mA
mA
mA
1
1
1
Vout = 1.2V
Vout)
1.2V < VCC33 –
Vout = 1.9V
-11 (VCC33 –
Vout) – 25.2
1.9V < VCC33 –
Vout = 3.6V
-1.8 (VCC33 –
Vout) – 42.7
Iol(AC)
Switching Current Low
0 = Vout = 3.6V
0 < Vout = 1.3V
100Vout
48Vout
1
1
1.3V < Vout
3.6V
=
5.7Vout + 55
Icl
Low Clamp Current
High Clamp Current
-3V < Vin ≤ -
-40 + (Vin + 1) /
0.005
mA
mA
mA
0.8875V
-0.8875V < Vin
-0.625V
≤
-25 + (Vin + 1) /
0.015
Ich
0.8875V < Vin
VCC33 ≤ -4V
–
40 + (Vin –
VCC33 - 1) /
0.005
0.625V < Vin
VCC33 ≤
–
25 + (Vin –
VCC33 - 1) /
0.015
mA
0.8875V
slewr
slewf
Output Rise Slew Rate
Output Fall Slew Rate
0.3VCC33 to
0.6VCC33
1
4
4
V/ns
V/ns
2
2
0.6VCC33 to
0.3VCC33
1
NOTES:
1. In conventional PCI switching, current characteristics for PAREQ# and PAGNT# are permitted to be one half
of that specified here; i.e., half size drivers may be used on these signals. This specification does not apply to
CLK and RST# which are system outputs. “Switching Current High” specifications are not relevant to
PASERR#, INTA#, INTB#, INTC# and INTD#, which are open drain outputs.
2. This parameter is to be interpreted as the cumulative edge rate across the specified range rather than the
instantaneous rate at any point within the transition range. For more details on slew rate measurement
conditions please refer to the PCI-X Electrical and Mechanical Addendum to the PCI Local Bus Specification,
Revision 2.0a.
Intel® 6702PXH 64-bit PCI Hub Datasheet
167
INTEL [ INTEL ]
