392 AMD Geodeā„¢ SC2200 Processor Data Book
Electrical Specifications
32580B
Figure 9-13. V/I Curves for PCI Output Signals
Pull-Up Pull-Down
Test Point
VIO
0.9
VIO
DC
Drive Point
AC
Drive Point
0.3
VIO
0.6
VIO
0.1
AC
Drive Point
DC
Drive Point
Test Point
VIO
Equation A
for VIO>VOUT>0.7VIO
IOL = (256/VIO)*VOUT*(VIO-VOUT)
for 0V<VOUT<0.18VIO
Volts Vo lts
IOL mA
IOH mA 64VIO
16VIO
1.5
-12VIO -48VIO
-0.5
IOH = (98.0/VIO)*(VOUT
-VIO)*(VOUT+0.4VIO)
Equation B
Output Voltage Output Voltage
0.5VIO