參數(shù)資料
型號: PUMA68S4000/A-45
元件分類: SRAM
英文描述: 128K X 32 MULTI DEVICE SRAM MODULE, 45 ns, QMA68
封裝: PLASTIC, LCC-68
文件頁數(shù): 5/9頁
文件大?。?/td> 134K
代理商: PUMA68S4000/A-45
PUMA 68S4000/A - 020/025/35/45
ISSUE 4.4 : December 1999
5
Write Cycle
-020
-025
-35
-45
Parameter
Symbol
min
max
min
max
min
max
min
max
Unit
Write Cycle Time
t
WC
20
-
25
-
35
-
45
-
ns
Chip Selection to End of Write
t
CW
15
-
20
-
25
-
35
-
ns
Address Valid to End of Write
t
AW
15
-
20
-
25
-
35
-
ns
Address Setup Time
t
AS
0-
0-0-
0-
ns
Write Pulse Width
t
WP
12
-
15
-
17
-
20
-
ns
Write Recovery Time
t
WR
0-
0-0-
0-
ns
Write to Output in High Z
t
WHZ
0
10
0
12
0
15
0
15
ns
Data to Write Time Overlap
t
DW
10
-
12
-
15
-
15
-
ns
Data Hold from Write Time
t
DH
0-
0-0-
0-
ns
Output active from end of write
t
OW
3-
3-3-
3-
ns
-020
-025
-35
-45
Parameter
Symbol
min
max
min
max
min
max
min
max
Unit
Read Cycle Time
t
RC
20
-
25
-
35
-
45
-
ns
Address Access Time
t
AA
-
20
-
25
-
35
-
45
ns
Chip Select Access Time
t
ACS
-
20
-
25
-
35
-
45
ns
Output Enable to Output Valid
t
OE
-
10
-
12
-
15
-
17
ns
Output Hold from Address Change
t
OH
3-
3-3-
3-
ns
Chip Selection to Output in Low Z
t
CLZ
3-
3-3-
3-
ns
Output Enable to Output in Low Z
t
OLZ
0-
0-0-
0-
ns
Chip Deselection to O/P in High Z
t
CHZ
0
9
0
10
0
12
0
15
ns
Output Disable to Output in High Z
t
OHZ
0
8
0
10
0
12
0
15
ns
AC OPERATING CONDITIONS
Read Cycle
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