ZILOG
AC CHARACTERISTICS
CPU Write Cycle Timing Diagram
A2-A0
/SCSICS
/RD
D7-D0
1
2
3
4
5
6
Z53C80 SCSI
Figure 45. CPU Write Cycle
AC CHARACTERISTICS
CPU Write Cycle Table
No
Description
1
Address Setup to Write Enable [1]
2
Address Hold from End Write Enable [1]
3
Write Enable Width*
4
Chip Select Hold from End of /IOW
5
Data Setup to end of Write Enable [1]
6
Data Hold Time form End of /IOW
Note:
[1] Write Enable is the occurrence of /WR and /CS.
Min
Max
10
10
40
0
20
20
Units
ns
ns
ns
ns
ns
ns
24
PS97SCC0200