IS41C44052C データシートの表示（PDF） - Integrated Silicon Solution
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IS41C44052C Datasheet PDF : 17 Pages
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IS41C44052C
IS41LV44052C
AC CHARACTERISTICS(1,2,3,4,5,6)
(Recommended Operating Conditions unless otherwise noted.)
-50 -60
Symbol Parameter
Min. Max.
Min. Max.
trc
Random READ or WRITE Cycle Time
trac
Access Time from RAS(6, 7)
84
—
—
50
104
—
—
60
tcac
Access Time from CAS(6, 8, 15)
—
13
—
15
taa
Access Time from Column-Address(6)
tras
RAS Pulse Width
trp
RAS Precharge Time
tcas
CAS Pulse Width(23)
tcp
CAS Precharge Time(9)
tcsh
CAS Hold Time (21)
trcd
RAS to CAS Delay Time(10, 20)
—
25
50
10K
30
—
8
10K
9
—
38
—
12
37
—
30
60
10K
40
—
10
10K
9
—
40
—
14
45
tasr
Row-Address Setup Time
0
—
0
—
trah
Row-Address Hold Time
8
—
10
—
tasc
Column-Address Setup Time(20)
0
—
0
—
tcah
Column-Address Hold Time(20)
8
—
10
—
tar
Column-Address Hold Time
(referenced to RAS)
30
—
40
—
trad
RAS to Column-Address Delay Time(11)
tral
Column-Address to RAS Lead Time
trpc
RAS to CAS Precharge Time
trsh
RAS Hold Time
10
25
25
—
5
—
8
—
12
30
30
—
5
—
10
—
trhcp
tclz
tcrp
RAS Hold Time from CAS Precharge
CAS to Output in Low-Z(15, 24)
CAS to RAS Precharge Time(21)
30
—
0
—
5
—
35
—
0
—
5
—
tod
Output Disable Time(19, 24)
3
15
3
15
toe
Output Enable Time(15, 16)
—
12
—
15
toed
toehc
toep
toes
Output Enable Data Delay (Write)
OE HIGH Hold Time from CAS HIGH
OE HIGH Pulse Width
OE LOW to CAS HIGH Setup Time
12
—
5
—
10
—
5
—
15
—
5
—
10
—
5
—
trcs
Read Command Setup Time(17, 20)
0
—
0
—
trrh
Read Command Hold Time
0
—
(referenced to RAS)(12)
0
—
trch
Read Command Hold Time
(referenced to CAS)(12, 17, 21)
0
—
0
—
twch
Write Command Hold Time(17)
8
—
10
—
twcr
Write Command Hold Time
40
—
(referenced to RAS)(17)
50
—
twp
Write Command Pulse Width(17)
twpz
WE Pulse Widths to Disable Outputs
8
—
7
—
10
—
7
—
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
6
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. 00B
08/09/2010
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