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V58C265404S Scheda tecnica(PDF) 26 Page - Mosel Vitelic, Corp

Il numero della parte V58C265404S
Spiegazioni elettronici  HIGH PERFORMANCE 2.5 VOLT 16M X 4 DDR SDRAM 4 BANKS X 4Mbit X 4
PDF  44 Pages
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Produttore elettronici  MOSEL [Mosel Vitelic, Corp]
Homepage  http://www.moselvitelic.com
Logo MOSEL - Mosel Vitelic, Corp

V58C265404S Scheda tecnica(HTML) 26 Page - Mosel Vitelic, Corp

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V58C265404S Rev. 1.4 January 2000
MOSEL VITELIC
V58C265404S
AC Characteristics (TA=0 to +70°C, VCC=2.5 ± 0.2V)
Symbol
Parameter
–8
–7
–6
Unit
Min.
Max.
Min.
Max.
Min.
Max.
Clock Cycle
tCK
Clock Cycle
CL = 2.0
10
15
8
15
7
15
ns
CL = 2.5
9
15
7.5
15
6.5
15
ns
CL = 3.0
8
15
7
15
6
15
ns
tCH
Clock Duty Cycle
0.45
0.55
0.45
0.55
0.45
0.55
%
tCL
0.45
0.55
0.45
0.55
0.45
0.55
%
Command Cycle
tRAS
Row Active Time (ACT->PRE)
56
-
49
-
42
-
ns
tRP
Row Precharge (PRE->ACT)
24
-
21
-
18
-
ns
tRC
Row Cycle (ACT->ACT)
80
-
70
-
60
-
ns
tRCD
RAS->CAS Delay (ACT->WR/RD)
24
-
21
-
18
-
ns
tRRD
RAS->RAS Delay (ACTa->ACTb)
16
-
14
-
12
-
ns
tRFC
Auto-Refresh (REF->REF/ACT)
88
-
77
-
66
-
ns
tREF
Refresh Cycle
-
64
-
64
-
64
ms
tSREX(DLL)
Self-Refresh Exit Delay
200
-
200
-
200
-
cycles
tSREX
1
-
1
-
1
-
tRC
tIS
CMD, ADDR->CLK Setup
0.15
-
0.15
-
0.15
-
tCK
tIH
CMD, ADDR->CLK Hold
0.15
-
0.15
-
0.15
-
tCK
tCCD
CAS->CAS Delay (Cola->Colb)
1
1
1
tCK
tMRD
Mode Register Set Delay
2
2
2
tCK
tPDENT
Power Down Entry Delay
1
1
1
tCK
tPDEX(DLL)
Power Down Exit Delay
1
1
1
tCK
tPDEX
1
1
1
tCK
Read Cycle
tAC
CLK->DQ Skew
-0.1
0.1
-0.1
0.1
-0.1
0.1
tCK
tDQSCK
CLK->DQS Skew
-0.1
0.1
-0.1
0.1
-0.1
0.1
tCK
tDQSQ
DQS->DQ Skew
-0.075
0.075
-0.075
0.075
-0.075
0.075
tCK
tDV
DQ/DQS Valid Window
0.3
-
0.3
-
0.3
-
tCK
tRPRE
Read DQS Preamble
0.9
1.1
0.9
1.1
0.9
1.1
tCK
tRPST
Read DQS Postamble
0.4
0.6
0.4
0.6
0.4
0.6
tCK



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