![](http://datasheet.mmic.net.cn/210000/MSM8128GXLMB-10_datasheet_15453046/MSM8128GXLMB-10_4.png)
MSM8128 - 70/85/10/12
Issue 4.4 : February 2000
4
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AC OPERATING CONDITIONS
Read Cycle
85
10
12
Parameter
Symbol
min
max
min
max
min
max
Unit
Read Cycle Time
Address Access Time
Chip Select (CS1) Access Time
(2)
Chip Select (CS2) Access Time
(2)
Output Enable to Output Valid
Output Hold from Address Change
Chip Selection (CS1) to Output in Low Z
Chip Selection (CS2) to Output in Low Z
Output Enable to Output in Low Z
Chip Disable (CS1) to Output in High Z
(3)
Chip Disable (CS2) to Output in High Z
(3)
Output Disable to Output in High Z
(3)
t
RC
t
AA
t
ACS1
t
ACS2
t
OE
t
OH
t
CLZ1
t
CLZ2
t
OLZ
t
CHZ1
t
CHZ2
t
OHZ
85
-
-
-
-
5
10
10
5
0
0
0
-
100
-
-
-
-
10
10
10
5
0
0
0
-
120
-
-
-
-
10
10
10
5
0
0
0
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
85
85
85
45
-
-
-
-
35
35
30
100
100
100
50
-
-
-
-
35
35
35
120
120
120
60
-
-
-
-
45
45
45
Write Cycle
85
10
12
Parameter
Symbol
min
max
min
max
min
max
Unit
Write Cycle Time
Chip Selection to End of Write
Address Valid to End of Write
Address Setup Time
Write Pulse Width
Write Recovery Time (WE, CS1)
(CS2)
Write to Output in High Z
Data to Write Time Overlap
Data Hold from Write Time
Output Active from End of Write
t
WC
t
CW
t
AW
t
AS
t
WP
t
WR1
t
WR2
t
WHZ
t
DW
t
DH
t
OW
85
75
75
0
60
5
5
0
35
0
5
-
-
-
-
-
-
-
100
85
85
0
70
5
5
0
40
0
5
-
-
-
-
-
-
-
120
100
100
0
70
5
5
0
45
0
5
-
-
-
-
-
-
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
30
-
-
-
35
-
-
-
40
-
-
-
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