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L7C109 датащи(PDF) 5 Page - LOGIC Devices Incorporated

номер детали L7C109
подробное описание детали  128K x 8 Static RAM
PDF  15 Pages
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производитель  LODEV [LOGIC Devices Incorporated]
домашняя страница  http://www.logicdevices.com
Logo LODEV - LOGIC Devices Incorporated

L7C109 датащи(HTML) 5 Page - LOGIC Devices Incorporated

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LOGIC Devices Incorporated
www.logicdevices.com
5
Aug 11, 2010 LDS-L7C108/9-F
1M Static RAMs
128K x 8 Static RAM
L7C108
PRELIMINARY INFORMATION
L7C109
SWITCHING CHARACTERISTICS Over Operating Range
READ CYCLE Notes 5, 11, 12, 22, 23, 24 (ns)
L7C108/109
Symbol
Parameter
15/15-L 20/20-L 25/25-L 35/35-L 45/45-L
tPD
tCDR
Operation Recovery Time Notes 10, 19
Chip Enable High to Data Retention Note 10
DATA RETENTION MODE
VCC
tCDR
4.5 V
4.5 V
≥ 2 V
CE
VIH
tPD
VIH
DATA RETENTION Notes 9, 10
WRITE CYCLE Notes 5, 11, 12, 22, 23, 24 (ns)
L7C108/109
Symbol Parameter
Write Cycle Time
Chip Enable Low to End of Write Cycle
Address Valid to Beginning of Write Cycle
Address Setup to End of Write Cycle
Address Hold After End Of Write
Write Enable Pulse Width Low
Data Setup to End of Write Cycle
Data Hold to End of Write
Write Enable High to Output Low Z Notes 20, 21
Write Enable Low to Output High Z Notes 20, 21
15/15-L 20/20-L 25/25-L 35/35-L 45/45-L
tAVAV
tELWH
tAVWL
tAVWH
tWHAX
tWLWH
tDVWH
tWHDX
tWH X
tWL Z
Min
0
Min
0
Min
0
Min
0
Min
0
Max
15
Max
20
Max
25
Max
35
Max
45
Min
15
12
0
15
0
12
7
0
5
Min
20
12
0
17
0
15
10
0
5
Min
25
20
0
20
0
20
12
0
5
Min
35
25
0
25
0
30
20
0
5
Min
45
35
0
35
0
40
20
0
5
Max
7
Max
8
Max
10
Max
25
Max
30



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