HD74AC HITACHI [Hitachi Semiconductor], HD74AC Datasheet - Page 6

• Manufacturer Part Number: HD74AC
• Description: HD74AC Series Common Information
• Manufacturer: HITACHI [Hitachi Semiconductor]

While this exercise can be done for FACT, it is no longer necessary. FACT is guaranteed to drive an
incident wave of enough voltage to switch another FACT input.
–1
–1
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
–1
0 1 2 3 4 5 6 7 8 9
50 100 150 200 250 300 350 400 450
Figure 3 Resultant Waveforms Driving 50
Time (1 Propagation Delay/Div)
Figure 4 Resultant Waveforms Driving 50
VZR 0
Time (ns)
FACT Descriptions and Family Characteristics
RECEIVER
DRIVER
RECEIVER
DRIVER
10 11
–1
–1
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
–1
Line–Theoretical
0 1 2 3 4 5 6 7 8 9 10 11
50 100 150 200 250 300 350 400 450
Line–Actual
VZR 0
Time (1 Propagation Delay/Div)
Time (ns)
RECEIVER
DRIVER
RECEIVER
DRIVER
5