PUMA 2/67/77S4000/A - 020/025/35
Issue 4.3 : December 1999
AC OPERATING CONDITIONS
Read Cycle
Parameter
Read Cycle Time
Address Access Time
Chip Select Access Time
Output Enable to Output Valid
Output Hold from Address Change
Chip Selection to Output in Low Z
Output Enable to Output in Low Z
Output Disable to Output in High Z
(3)
Symbol
t
RC
t
AA
t
ACS
t
OE
t
OH
t
CLZ
t
OLZ
t
OHZ
020
min
max
20
-
-
-
5
6
0
0
0
-
20
20
9
-
-
-
9
9
025
min
max
25
-
-
-
5
5
0
-
-
-
25
25
8
-
-
-
15
15
min
35
-
-
-
5
5
0
-
-
35
max Units
-
35
35
12
-
-
-
15
15
ns
ns
ns
ns
ns
ns
ns
ns
ns
Chip Deselection to Output in High Z
(3)
t
CHZ
Write Cycle
020
Parameter
Write Cycle Time
Chip Selection to End of Write
Address Valid to End of Write
Address Setup Time
Write Pulse Width
Write Recovery Time
Data to Write Time Overlap
Output Active from End of Write
Data Hold from Write Time
Write to Output High Z
025
max
-
-
-
-
-
-
15
-
-
-
35
max
-
-
-
-
-
-
-
-
-
10
Symbol
t
WC
t
CW
t
AW
t
AS
t
WP
t
WR
t
DW
t
OW
t
DH
t
WHZ
min
20
15
15
0
15
0
0
15
2*
5
min
25
16
16
0
15
5
10
3
2*
0
min
35
20
20
0
20
5
15
3
2*
0
max
-
-
-
-
-
-
-
-
-
10
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
* Note : Only applies to PUMA 67S4000/A otherwise t
DH
(min) = 0
4
MOSAIC [ MOSAIC ]
