AS4LC4M4E0 Ver la hoja de datos (PDF) - Alliance Semiconductor
Número de pieza
componentes Descripción
Fabricante
AS4LC4M4E0 Datasheet PDF : 15 Pages
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AC parameters common to all waveforms
Symbol
tRC
tRP
tRAS
tCAS
tRCD
tRAD
tRSH
tCSH
tCRP
tASR
tRAH
tT
tREF
tCP
tRAL
tASC
tCAH
Parameter
Random read or write cycle time
RAS precharge time
RAS pulse width
CAS pulse width
RAS to CAS delay time
RAS to column address delay time
CAS to RAS hold time
RAS to CAS hold time
CAS to RAS precharge time
Row address setup time
Row address hold time
Transition time (rise and fall)
Refresh period
CAS precharge time
Column address to RAS lead time
Column address setup time
Column address hold time
Read cycle
Symbol Parameter
tRAC
Access time from RAS
tCAC
Access time from CAS
tAA
Access time from address
tRCS
Read command setup time
tRCH
Read command hold time to CAS
tRRH
Read command hold time to RAS
AS4LC4M4E0
AS4LC4M4E1
®
-50
Min
Max
80
–
30
–
50
10K
8
10K
15
35
12
25
10
–
40
–
5
–
0
–
8
–
1
50
–
64
8
–
25
–
0
–
8
-60
Min
Max
100
–
40
–
60
10K
10
10K
15
43
12
30
10
–
50
–
5
–
0
–
10
–
1
50
–
64
10
–
30
–
0
–
10
–
Unit Notes
ns
ns
ns
ns
ns 6
ns 7
ns
ns
ns
ns
ns
ns 4,5
ms 3
ns
ns
ns
ns
-50
Min
Max
–
50
–
12
–
25
0
–
0
–
0
–
-60
Min
Max
–
60
–
15
–
30
0
–
0
–
0
–
Unit Notes
ns 6
ns 6,13
ns 7,13
ns
ns 9
ns 9
4/11/01; V.1.1
Alliance Semiconductor
P. 5 of 15
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