am79c970 Advanced Micro Devices, am79c970 Datasheet - Page 140

• Manufacturer Part Number: am79c970
• Description: Pcnettm-pci Single-chip Ethernet Controller For Pci Local Bus
• Manufacturer: Advanced Micro Devices

KEY TO SWITCHING WAVEFORMS
SWITCHING TEST CIRCUITS
Sense Point
WAVEFORM
Normal and Three-State Outputs
P R E L I M I N A R Y
C
L
Am79C970
INPUTS
Must be
Steady
May
Change
from H to L
May
Change
from L to H
Don’t Care,
Any Change
Permitted
Does Not
Apply
I
I
OL
OH
OUTPUTS
Will be
Steady
Will be
Changing
from H to L
Will be
Changing
from L to H
Changing,
State
Unknown
Center
Line is High-
Impedance
“Off” State
18220C-35
V
THRESHOLD
AMD
1-1007