參數(shù)資料
型號(hào): V826664G24S
廠商: Mosel Vitelic, Corp.
英文描述: 512 MB 200-PIN DDR UNBUFFERED SODIMM 2.5 VOLT 64M x 64
中文描述: 512 MB的200 - pin的DDR SODIMM內(nèi)存2.5伏的緩沖6400 × 64
文件頁(yè)數(shù): 10/14頁(yè)
文件大?。?/td> 199K
代理商: V826664G24S
10
MOSEL VITELIC
V826664G24S
V826664G24S Rev. 1.0 August 2002
AC Characteristics
(AC operating conditions unless otherwise noted)
Parameter
Symbol
(PC333)
(PC266A)
(PC266B)
(PC200)
Unit Note
Min
Max
Min
Max
Min
Max
Min
Max
Row Cycle Time
t
RC
60
-
65
-
65
-
70
-
ns
Auto Refresh Row Cycle Time
t
RFC
72
-
75
-
75
-
80
-
ns
Row Active Time
t
RAS
42
120K
45
120K
45
120K
50
120K
ns
Row Address to Column Address Delay
t
RCD
18
-
20
-
20
-
20
-
ns
Row Active to Row Active Delay
t
RRD
12
-
15
-
15
-
15
-
ns
Column Address to Column Address Delay
t
CCD
1
-
1
-
1
-
1
-
CLK
Row Precharge Time
t
RP
18
-
20
-
20
-
20
-
ns
Write Recovery Time
t
WR
12
-
15
-
15
-
15
-
ns
Last Data-In to Read Command
t
DRL
1
-
1
-
1
-
1
-
CLK
Auto Precharge Write Recovery + Precharge
Time
t
DAL
35
-
35
-
35
-
35
-
ns
System Clock Cycle
Time
CAS Latency = 2.5
t
CK
6
12
7
12
7.5
12
8
12
ns
CAS Latency = 2
7.5
12
7.5
12
10
12
10
12
ns
Clock High Level Width
t
CH
0.45
0.55
0.45
0.55
0.45
0.55
0.45
0.55
CLK
Clock Low Level Width
t
CL
0.45
0.55
0.45
0.55
0.45
0.55
0.45
0.55
CLK
Data-Out edge to Clock edge Skew
t
AC
-0.75
0.75
-0.75
0.75
-0.75
0.75
-0.8
0.8
ns
DQS-Out edge to Clock edge Skew
t
DQSCK
-0.75
0.75
-0.75
0.75
-0.75
0.75
-0.8
0.8
ns
DQS-Out edge to Data-Out edge Skew
t
DQSQ
-
0.45
-
0.5
-
0.5
-
0.6
ns
Data-Out hold time from DQS
t
QH
t
HPmin
-0.75ns
-
t
HPmin
-0.75ns
-
t
HPmin
-0.75ns
-
t
HPmin
-0.75ns
-
ns
1
Clock Half Period
t
HP
t
CH/L
min
-
t
CH/L
min
-
t
CH/L
min
-
t
CH/L
min
-
ns
1
Input Setup Time (fast slew rate)
t
IS
0.75
-
0.9
-
0.9
-
1.1
-
ns 2,3,5,6
Input Hold Time (fast slew rate)
t
IH
0.75
-
0.9
-
0.9
-
1.1
-
ns 2,3,5,6
Input Setup Time (slow slew rate)
t
IS
0.8
-
1.0
-
1.0
-
1.1
-
ns 2,4,5,6
Input Hold Time (slow slew rate)
t
IH
0.8
-
1.0
-
1.0
-
1.1
-
ns 2,4,5,6
Write DQS High Level Width
t
DQSH
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
CLK
Write DQS Low Level Width
t
DQSL
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
CLK
CLK to First Rising edge of DQS-In
t
DQSS
0.75
1.25
0.75
1.25
0.75
1.25
0.75
1.25
CLK
Data-In Setup Time to DQS-In (DQ & DM)
t
DS
0.45
-
0.5
-
0.5
-
0.6
-
ns
7
Data-in Hold Time to DQS-In (DQ & DM)
t
DH
0.45
-
0.5
-
0.5
-
0.6
-
ns
7
DQ & DM Input Pulse Width
t
DIPW
1.75
-
1.75
-
1.75
-
2
-
ns
Read DQS Preamble Time
t
RPRE
0.9
1.1
0.9
1.1
0.9
1.1
0.9
1.1
CLK
Read DQS Postamble Time
t
RPST
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
CLK
Write DQS Preamble Setup Time
t
WPRES
0
-
0
-
0
-
0
-
CLK
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