EL240.128.45 Operations Manual (020-0345-00C)
9
Video Input Signals
Figure 3. 8080 Video Input Timing Diagram.
Table 5. 8080 Video Input Timing Description.
Signal Symbol
Parameter
Condition
min
max
unit
A0, CS
t
AH8
Address hold time
10
-
ns
t
AW8
Address
setup
time
0 - ns
WR, RD
t
CYC
System
cycle
time
550
- ns
t
CC
Strobe pulsewidth
120
-
ns
CL=100 pF
t
DS8
Data setup time
120
-
ns
D0 to D7
t
DH8
Data hold time
5
-
ns
t
ACC8
RD
access
time - 50 ns
t
OH8
Output disable time
10
50
ns
All signals Tr, Tf
Input rise and fall
times
30
ns