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7025E Datasheet(PDF) 4 Page - Maxwell Technologies

Part No. 7025E
Description  (8K x 16-Bit) Dual Port RAM High-Speed CMOS
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Maker  MAXWELL [Maxwell Technologies]
Homepage  http://www.maxwell.com
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7025E Datasheet(HTML) 4 Page - Maxwell Technologies

 
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All data sheets are subject to change without notice
©2002 Maxwell Technologies
All rights reserved.
(8K x 16-Bit) Dual Port RAM High-Speed CMOS
7025E
08.15.02 Rev 2
TABLE 7. 7025E AC ELECTRICAL CHARACTERISTICS FOR READ CYCLE
(V
CC = 5V ± 10%, VSS = 0V, TA = -55 TO 125
°
C)
PARAMETER
SYMBOL
SUBGROUPS
MIN
MAX
UNIT
Read Cycle Time
-35
-45
t
RC
9, 10, 11
35
45
--
--
ns
Address Access Time
-35
-45
t
AA
9, 10, 11
--
--
35
45
ns
Chip Select Access Time 1
-35
-45
1. To access RAM, CS = V
IL, UB or LB = VIL, SEM = VIH. To access semaphore, CS = VIN and SEM = VIL. Either condition must be
valid for the entire t
EW time.
t
ACS
9, 10, 11
--
--
35
45
ns
Byte Select Access Time 1
-35
-45
t
ABE
9, 10, 11
--
--
35
45
ns
Output Select to Output Valid
-35
-45
t
AOE
9, 10, 11
--
--
20
25
ns
Output Low Z Time 2,3
-35
-45
2. Guaranteed by design.
3. Transition is measured ± 500 mV from low or high impedance voltage with load.
t
LZ
9, 10, 11
3
3
--
--
ns
Output High Z Time 2,3
-35
-45
t
HZ
9, 10, 11
--
--
20
20
ns
Chip Enable to Power Up Time 2
t
PU
9, 10, 11
0
--
ns
Chip Disable to Power Up Time 2
t
PD
9, 10, 11
--
50
ns
Semaphore Flag Update Pulse (OE or SEM)t
SOP
9, 10, 11
15
--
ns
TABLE 8. 7025E AC ELECTRICAL CHARACTERISTICS FOR WRITE CYCLE
(V
CC = 5V ± 10%, VSS = 0V, TA = -55 TO 125
°
C)
PARAMETER
SYMBOL
SUBGROUPS
MIN
MAX
UNIT
Write Cycle Time
-35
-45
t
WC
9, 10, 11
35
45
--
--
ns
Address Valid to End of Write
-35
-45
t
AW
9, 10, 11
30
40
--
--
ns


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