Electrical Characteristics
4.2
AC Specifications
4.2.1
PCI and PCI-X AC Characteristics
Table 4-14. Conventional PCI 3.3V AC Characteristics
Sym
Parameter
Condition
Min
Max
Unit
Note
Ioh(AC) Switching Current
High
Vout = 0.7VCC33
-32VCC33
mA
V
out = 0.3VCC33
-12VCC33
16VCC33
mA
mA
1
1
Iol(AC)
Switching Current
Low
Vout = 0.18VCC33
38VCC33
Vout = 0.6VCC33
mA
mA
Ich
High Clamp Current
Low Clamp Current
VCC33 + 4 > Vin
VCC33 + 1
=
25 + (Vin –
VCC33 – 1) /
0.015
Icl
-3 < Vin = -1
-25 + (Vin + 1) /
0.015
mA
V/ns
V/ns
slewr
slewf
Output Rise Slew
Rate
0.3VCC33 to
0.6VCC33
1
4
4
2
2
Output Fall Slew Rate
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 RSTIN# 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.
166
Intel® 6702PXH 64-bit PCI Hub Datasheet
INTEL [ INTEL ]
